diff --git a/CLAUDE.md b/CLAUDE.md
index 6d24e56..66dafe7 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -4,32 +4,37 @@ This document contains project-specific instructions for working with the Epheme
 
 ## Project Overview
 
-Ephemere is a collection of ephemeral scripts for various tasks, written in TypeScript and Python. It contains utilities for:
+Ephemere is a collection of ephemeral scripts for various tasks, written in TypeScript, Python, and Bash. It contains utilities for:
 - S3 operations (upload, bulk upload, delete, content type correction)
 - Discord bot utilities
 - Discourse forum management
 - Gitea/GitHub operations
 - Security analysis tools
 - Music-related scripts
-- Various utility functions
+- Cohort programme management (Python + Bash)
+- YubiKey SSH key and permission utilities (Bash)
 
 ## Project Structure
 
 ```
 ephemere/
 ├── typescript/          # TypeScript scripts
-│   ├── src/
-│   │   ├── s3/         # S3 operations (upload, delete, bulk operations)
-│   │   ├── discord/    # Discord bot and utilities
-│   │   ├── discourse/  # Discourse forum management
-│   │   ├── gitea/      # Gitea API interactions
-│   │   ├── github/     # GitHub API interactions
-│   │   ├── security/   # Security analysis tools
-│   │   ├── music/      # Music-related utilities
-│   │   └── utils/      # Shared utilities
-│   └── data/          # Data files for S3 uploads
-├── python/            # Python scripts
-└── prod.env          # 1Password vault references (safe to commit)
+│   └── src/
+│       ├── s3/         # S3 operations (upload, delete, bulk operations)
+│       ├── discord/    # Discord bot and utilities
+│       ├── discourse/  # Discourse forum management
+│       ├── gitea/      # Gitea API interactions
+│       ├── github/     # GitHub API interactions
+│       ├── security/   # Security analysis tools
+│       ├── music/      # Music-related utilities
+│       └── utils/      # Shared utilities
+├── python/
+│   └── cohort/        # Cohort programme management scripts
+├── bash/
+│   ├── cohort/        # GitHub team management for cohorts
+│   └── yubikey/       # YubiKey SSH key and permission utilities
+├── data/              # Input/output data files (gitignored)
+└── prod.env           # 1Password vault references (safe to commit)
 ```
 
 ## Development Standards
@@ -37,13 +42,20 @@ ephemere/
 ### TypeScript Scripts
 - All TypeScript scripts must follow Naomi's Node.js project standards
 - Use `@nhcarrigan/typescript-config` and `@nhcarrigan/eslint-config`
-- Run scripts using the Makefile: `make run-ts src/path/to/script.ts`
+- Run scripts using the interactive runner: `make run` (select TypeScript → category → script)
 - Interactive scripts should use `@inquirer/prompts` for user input
 
 ### Python Scripts
 - Use `uv` for package management
 - Linting and formatting with `ruff`
-- Run scripts using the Makefile: `make run-py script_name.py`
+- Scripts live in subdirectories of `python/` (e.g. `python/cohort/`)
+- Run scripts using the interactive runner: `make run` (select Python → category → script)
+
+### Bash Scripts
+- Scripts live in subdirectories of `bash/` (e.g. `bash/cohort/`, `bash/yubikey/`)
+- Run scripts using the interactive runner: `make run` (select Bash → category → script)
+- Or run directly: `bash bash/<category>/<script>.sh`
+- Bash scripts do not use 1Password injection (they use `gh` CLI auth or system tools)
 
 ### S3 Scripts Specifics
 All S3 scripts in `typescript/src/s3/` follow these patterns:
@@ -56,22 +68,24 @@ All S3 scripts in `typescript/src/s3/` follow these patterns:
 
 ## Running Scripts
 
-Always use the Makefile commands to run scripts (they handle 1Password integration):
+Always use the interactive runner to run scripts (it handles 1Password integration for TypeScript and Python):
 
-```bash
-# TypeScript scripts
-make run-ts src/s3/deleteContents.ts
-make run-ts src/discord/bot.ts
-
-# Python scripts
-make run-py analyse_availability.py
-```
-
-Or use the interactive runner:
 ```bash
 make run  # Interactive menu to select language, category, and script
 ```
 
+Or run directly:
+```bash
+# TypeScript (from project root)
+cd typescript && op run --env-file=../prod.env -- pnpm tsx src/<category>/<script>.ts
+
+# Python (from project root)
+cd python && op run --env-file=../prod.env -- uv run python <category>/<script>.py
+
+# Bash (no 1Password needed)
+bash bash/<category>/<script>.sh
+```
+
 ## Script Patterns
 
 ### TypeScript Script Template
@@ -232,7 +246,7 @@ The `prod.env` file contains 1Password vault references (like `op://Private/Hetz
 5. Consider adding audit logs for security operations
 
 ### Adding a new Python script
-1. Create the script in `python/`
+1. Create the script in the appropriate subdirectory of `python/` (e.g. `python/cohort/`)
 2. Use type hints for all functions and variables
 3. Follow PEP 8 style guide (enforced by ruff)
 4. Add the script to `requirements.txt` if it needs new dependencies
@@ -247,11 +261,12 @@ The `prod.env` file contains 1Password vault references (like `op://Private/Hetz
 5. Add unit tests if the utility is complex
 
 ### Adding a new script category
-1. Create a new directory under `typescript/src/` or in `python/`
+1. Create a new directory under `typescript/src/`, `python/`, or `bash/` as appropriate
 2. Follow the naming convention (lowercase, descriptive)
 3. Create at least one example script showing the pattern
-4. Update this CLAUDE.md with specific guidelines for the category
-5. Add any new environment variables to prod.env with 1Password references
+4. Create a `README.md` in the new directory documenting each script
+5. Update this CLAUDE.md with specific guidelines for the category
+6. Add any new environment variables to prod.env with 1Password references
 
 ## Testing
 
diff --git a/README.md b/README.md
index b701b0b..db043fd 100644
--- a/README.md
+++ b/README.md
@@ -1,22 +1,31 @@
 # Ephemere
 
-A collection of ephemeral scripts for various tasks, written in TypeScript and Python.
+A collection of ephemeral scripts for various tasks, written in TypeScript, Python, and Bash.
 
 ## Project Structure
 
 ```
 .
-├── typescript/     # TypeScript project
-│   ├── src/       # TypeScript source files
-│   ├── package.json
-│   ├── tsconfig.json
-│   └── eslint.config.js
-├── python/        # Python project
-│   ├── *.py       # Python scripts
-│   ├── pyproject.toml
-│   └── requirements.txt
-├── Makefile       # Build commands for both projects
-└── README.md
+├── typescript/          # TypeScript scripts
+│   └── src/
+│       ├── crowdin/    # Crowdin translation management
+│       ├── discord/    # Discord bot utilities
+│       ├── discourse/  # Discourse forum management
+│       ├── gitea/      # Gitea bulk repository operations
+│       ├── github/     # GitHub API interactions
+│       ├── music/      # Music file metadata tools
+│       ├── s3/         # S3-compatible object storage
+│       ├── security/   # Security analysis and reporting
+│       └── utils/      # Shared utilities
+├── python/
+│   └── cohort/         # NHCarrigan cohort programme management
+├── bash/
+│   ├── cohort/         # GitHub team management for cohorts
+│   └── yubikey/        # YubiKey SSH key and permission utilities
+├── data/               # Input/output data files (gitignored)
+├── prod.env            # 1Password vault references (safe to commit)
+├── run.sh              # Interactive script runner
+└── Makefile            # Build and utility commands
 ```
 
 ## Setup
@@ -25,105 +34,74 @@ A collection of ephemeral scripts for various tasks, written in TypeScript and P
 
 - Node.js (v24+) with nvm
 - Python 3.10+
-- pnpm 10.15.0
+- pnpm 10.15.0+
 - uv (Python package manager)
-- 1Password CLI (for secrets management)
+- 1Password CLI (`op`) — for secret injection into TypeScript and Python scripts
+- `gh` CLI — for Bash scripts that manage GitHub teams
+- `ykman` and `yubico-piv-tool` — for YubiKey Bash scripts
 
 ### Installation
 
 Install all dependencies (TypeScript and Python):
+
 ```bash
 make install
 ```
 
 Or install individually:
+
 ```bash
 make install-ts  # TypeScript dependencies only
 make install-py  # Python dependencies only
 ```
 
+## Running Scripts
+
+The recommended way to run any script is the interactive runner:
+
+```bash
+make run
+```
+
+This launches a menu to select a language (TypeScript, Python, or Bash), then a category, then a specific script. TypeScript and Python scripts have secrets injected automatically from `prod.env` via 1Password CLI. Bash scripts are run directly.
+
+To run a script directly without the interactive runner:
+
+```bash
+# TypeScript
+cd typescript && op run --env-file=../prod.env -- pnpm tsx src/<category>/<script>.ts
+
+# Python
+cd python && op run --env-file=../prod.env -- uv run python cohort/<script>.py
+
+# Bash
+bash bash/<category>/<script>.sh
+```
+
+Each category has its own `README.md` with details on every script, its required environment variables, and data file formats.
+
 ## Development
 
-### TypeScript Scripts
-
-TypeScript scripts are located in the `typescript/src/` directory. To run a TypeScript script with environment variables:
+### Linting and Formatting
 
 ```bash
-# From the root directory
-make run-ts src/s3/upload.ts
-
-# Or manually from typescript directory
-cd typescript
-pnpm start path/to/script.ts
+make lint           # Run all linters (TypeScript and Python)
+make lint-ts        # TypeScript linter only
+make lint-py        # Python linter only
+make build          # TypeScript type check
+make format         # Format Python code
+make format-check   # Check Python formatting without modifying
+make test           # Run tests
+make clean          # Clean build artifacts and caches
+make help           # Show all available commands
 ```
 
-### Python Scripts
-
-Python scripts are located in the `python/` directory. To run a Python script with environment variables:
-
-```bash
-# From the root directory
-make run-py analyse_availability.py
-
-# Or manually from python directory
-cd python
-uv run python script_name.py
-```
-
-## Linting and Formatting
-
-```bash
-# Run all linters (TypeScript and Python)
-make lint
-
-# Run linters individually
-make lint-ts     # TypeScript linter
-make lint-py     # Python linter
-
-# Build TypeScript (type check)
-make build
-
-# Format Python code
-make format
-
-# Check Python formatting without modifying
-make format-check
-
-# Run tests
-make test
-
-# Clean build artifacts and caches
-make clean
-
-# Show all available commands
-make help
-```
-
-## CI/CD
-
-The GitHub Actions workflow runs the following checks:
-
-1. **Dependency pin check** - Ensures all dependencies are pinned to exact versions
-2. **TypeScript checks**:
-   - ESLint
-   - TypeScript build (type checking)
-   - Tests
-3. **Python checks**:
-   - Ruff linting
-   - Ruff format checking
-
 ## Secrets Management
 
-This project uses 1Password CLI for secrets management. Environment variables are stored in `prod.env` as 1Password vault references.
+This project uses 1Password CLI for secrets management. The `prod.env` file contains 1Password vault references (e.g. `op://Private/Discord/token`) rather than real values, making it safe to commit.
 
-The `make run-ts` and `make run-py` commands automatically inject secrets from 1Password:
-```bash
-# These commands include 1Password integration
-make run-ts src/discord/bot.ts
-make run-py evaluate_technical_proficiency.py
-```
+The interactive runner (`make run`) handles secret injection automatically. To run a script manually with secrets:
 
-To manually run scripts with secrets:
 ```bash
 op run --env-file=prod.env -- <command>
 ```
diff --git a/bash/cohort/README.md b/bash/cohort/README.md
new file mode 100644
index 0000000..aab32d0
--- /dev/null
+++ b/bash/cohort/README.md
@@ -0,0 +1,75 @@
+# Cohort Bash Scripts
+
+Shell scripts for managing GitHub team membership during the NHCarrigan spring cohort programme. These scripts handle one-off team changes that are too complex or bulk-oriented to do manually through the GitHub web interface.
+
+All scripts use the `gh` CLI for GitHub API calls. Run `gh auth login` before using them.
+
+## Getting Started
+
+Run scripts via the interactive runner from the project root:
+
+```bash
+make run
+# Select: Bash → cohort → <script>
+```
+
+Or run directly:
+
+```bash
+bash bash/cohort/<script-name>.sh
+```
+
+## Table of Contents
+
+- [remove\_github\_members.sh](#remove_github_memberssh)
+- [update\_github\_teams.sh](#update_github_teamssh)
+
+---
+
+## remove_github_members.sh
+
+Removes a hardcoded list of inactive members from their GitHub organisation teams in the `nhcarrigan-spring-2026-cohort` organisation. Covers both standard team membership and `-leaders` sub-team membership where applicable.
+
+### Usage
+
+```bash
+bash bash/cohort/remove_github_members.sh
+```
+
+### Environment Variables
+
+None. Uses `gh` CLI authentication — run `gh auth login` first.
+
+### Data Files
+
+None. Member usernames and team slugs are hardcoded in the script.
+
+### Notes
+
+- The member list and team assignments are specific to a point-in-time removal event. Update the script with the correct usernames before each use.
+- Each removal command uses `|| true` so a single failure (e.g. member already removed) does not abort the entire script.
+
+---
+
+## update_github_teams.sh
+
+Orchestrates a multi-step GitHub team restructure: removes all members from a dissolved team, clears its leaders sub-team, then adds each member to their new team. Also promotes a member to leader in their new team.
+
+### Usage
+
+```bash
+bash bash/cohort/update_github_teams.sh
+```
+
+### Environment Variables
+
+None. Uses `gh` CLI authentication — run `gh auth login` first.
+
+### Data Files
+
+None. All member usernames, team slugs, and role assignments are hardcoded in the script.
+
+### Notes
+
+- This script is specific to a one-off team restructure (Jade Jasmine dissolution). Update the member list and team assignments before each use.
+- The script exits immediately on any error (`set -e`). If a step fails, check whether the member or team already exists in the target state.
diff --git a/bash/cohort/remove_github_members.sh b/bash/cohort/remove_github_members.sh
new file mode 100755
index 0000000..8636c2c
--- /dev/null
+++ b/bash/cohort/remove_github_members.sh
@@ -0,0 +1,52 @@
+#!/usr/bin/env bash
+# Script to remove inactive members from GitHub organization teams
+# Date: 2026-02-12
+
+ORG="nhcarrigan-spring-2026-cohort"
+
+# Team 1 (Jade Jasmine) - Remove leader and participant
+echo "Removing from Jade Jasmine..."
+gh api --method DELETE "/orgs/$ORG/teams/jade-jasmine-leaders/memberships/Mista-Log" || true
+gh api --method DELETE "/orgs/$ORG/teams/jade-jasmine/memberships/A-normal-programmer" || true
+
+# Team 2 (Crimson Dahlia) - Remove 2 participants
+echo "Removing from Crimson Dahlia..."
+gh api --method DELETE "/orgs/$ORG/teams/crimson-dahlia/memberships/1s-crypto" || true
+gh api --method DELETE "/orgs/$ORG/teams/crimson-dahlia/memberships/emlanis" || true
+
+# Team 3 (Rose Camellia) - Remove leader
+echo "Removing from Rose Camellia..."
+gh api --method DELETE "/orgs/$ORG/teams/rose-camellia-leaders/memberships/michaelboateng1" || true
+
+# Team 4 (Amber Wisteria) - Remove leader and participant
+echo "Removing from Amber Wisteria..."
+gh api --method DELETE "/orgs/$ORG/teams/amber-wisteria-leaders/memberships/neonbit101" || true
+gh api --method DELETE "/orgs/$ORG/teams/amber-wisteria/memberships/avanishchandra" || true
+
+# Team 5 (Ivory Orchid) - Remove participant
+echo "Removing from Ivory Orchid..."
+gh api --method DELETE "/orgs/$ORG/teams/ivory-orchid/memberships/VuBui217" || true
+
+# Team 7 (Peach Gardenia) - Remove participant
+echo "Removing from Peach Gardenia..."
+gh api --method DELETE "/orgs/$ORG/teams/peach-gardenia/memberships/TabsOO7" || true
+
+# Team 8 (Violet Carnation) - Remove 2 participants
+echo "Removing from Violet Carnation..."
+gh api --method DELETE "/orgs/$ORG/teams/violet-carnation/memberships/masudulalam" || true
+gh api --method DELETE "/orgs/$ORG/teams/violet-carnation/memberships/urmilbhatt" || true
+
+# Team 10 (Coral Sunflower) - Remove leader and participant
+echo "Removing from Coral Sunflower..."
+gh api --method DELETE "/orgs/$ORG/teams/coral-sunflower-leaders/memberships/AjayTheWizard" || true
+gh api --method DELETE "/orgs/$ORG/teams/coral-sunflower/memberships/Hritikhh" || true
+
+# Team 11 (Indigo Tulip) - Remove participant
+echo "Removing from Indigo Tulip..."
+gh api --method DELETE "/orgs/$ORG/teams/indigo-tulip/memberships/SiAust" || true
+
+# Team 13 (Mint Narcissus) - Remove participant
+echo "Removing from Mint Narcissus..."
+gh api --method DELETE "/orgs/$ORG/teams/mint-narcissus/memberships/SergioPardoSanchez" || true
+
+echo "Done removing members from GitHub teams!"
diff --git a/bash/cohort/update_github_teams.sh b/bash/cohort/update_github_teams.sh
new file mode 100755
index 0000000..c7e47c2
--- /dev/null
+++ b/bash/cohort/update_github_teams.sh
@@ -0,0 +1,73 @@
+#!/bin/bash
+# Update GitHub teams for Jade Jasmine dissolution
+
+set -e  # Exit on error
+
+ORG="nhcarrigan-spring-2026-cohort"
+
+echo "=== Phase 2: GitHub Team Changes ==="
+echo ""
+
+# Step 1: Remove all members from jade-jasmine team
+echo "Step 1: Removing members from jade-jasmine team..."
+gh api --method DELETE "/orgs/$ORG/teams/jade-jasmine/memberships/Nikil-D-Gr8" || echo "  - Nikil-D-Gr8 already removed or not found"
+gh api --method DELETE "/orgs/$ORG/teams/jade-jasmine/memberships/amandaw800" || echo "  - amandaw800 already removed or not found"
+gh api --method DELETE "/orgs/$ORG/teams/jade-jasmine/memberships/hayden-html" || echo "  - hayden-html already removed or not found"
+gh api --method DELETE "/orgs/$ORG/teams/jade-jasmine/memberships/hbar1st" || echo "  - hbar1st already removed or not found"
+gh api --method DELETE "/orgs/$ORG/teams/jade-jasmine/memberships/rosacabrerac" || echo "  - rosacabrerac already removed or not found"
+gh api --method DELETE "/orgs/$ORG/teams/jade-jasmine/memberships/ArbitraryPie" || echo "  - ArbitraryPie already removed or not found"
+gh api --method DELETE "/orgs/$ORG/teams/jade-jasmine/memberships/builtbykabir" || echo "  - builtbykabir already removed or not found"
+gh api --method DELETE "/orgs/$ORG/teams/jade-jasmine/memberships/Mista-Log" || echo "  - Mista-Log already removed or not found"
+echo "✅ jade-jasmine team cleared"
+echo ""
+
+# Step 2: Remove leaders from jade-jasmine-leaders team
+echo "Step 2: Removing leaders from jade-jasmine-leaders team..."
+gh api --method DELETE "/orgs/$ORG/teams/jade-jasmine-leaders/memberships/hayden-html" || echo "  - hayden-html already removed or not found"
+gh api --method DELETE "/orgs/$ORG/teams/jade-jasmine-leaders/memberships/Mista-Log" || echo "  - Mista-Log already removed or not found"
+echo "✅ jade-jasmine-leaders team cleared"
+echo ""
+
+# Step 3: Add members to new teams
+echo "Step 3: Adding members to new teams..."
+
+echo "  - Adding Nikil-D-Gr8 to crimson-dahlia..."
+gh api --method PUT "/orgs/$ORG/teams/crimson-dahlia/memberships/Nikil-D-Gr8" -f role=member
+
+echo "  - Adding amandaw800 to violet-carnation..."
+gh api --method PUT "/orgs/$ORG/teams/violet-carnation/memberships/amandaw800" -f role=member
+
+echo "  - Adding hayden-html to teal-iris..."
+gh api --method PUT "/orgs/$ORG/teams/teal-iris/memberships/hayden-html" -f role=member
+
+echo "  - Adding hbar1st to indigo-tulip..."
+gh api --method PUT "/orgs/$ORG/teams/indigo-tulip/memberships/hbar1st" -f role=member
+
+echo "  - Adding rosacabrerac to scarlet-hydrangea..."
+gh api --method PUT "/orgs/$ORG/teams/scarlet-hydrangea/memberships/rosacabrerac" -f role=member
+
+echo "  - Adding ArbitraryPie to peach-gardenia..."
+gh api --method PUT "/orgs/$ORG/teams/peach-gardenia/memberships/ArbitraryPie" -f role=member
+
+echo "  - Adding builtbykabir to azure-lotus..."
+gh api --method PUT "/orgs/$ORG/teams/azure-lotus/memberships/builtbykabir" -f role=member
+
+echo "  - Adding Mista-Log to ivory-orchid..."
+gh api --method PUT "/orgs/$ORG/teams/ivory-orchid/memberships/Mista-Log" -f role=member
+
+echo "✅ All members added to new teams"
+echo ""
+
+# Step 4: Add Mista-Log to ivory-orchid-leaders
+echo "Step 4: Adding Mista-Log to ivory-orchid-leaders..."
+gh api --method PUT "/orgs/$ORG/teams/ivory-orchid-leaders/memberships/Mista-Log" -f role=member
+echo "✅ Mista-Log promoted to leader in Ivory Orchid"
+echo ""
+
+echo "=== Phase 2 Complete! ==="
+echo ""
+echo "Summary:"
+echo "- ✅ jade-jasmine team cleared (8 members removed)"
+echo "- ✅ jade-jasmine-leaders team cleared (2 leaders removed)"
+echo "- ✅ 8 members added to their new teams"
+echo "- ✅ Mista-Log promoted to leader in ivory-orchid"
diff --git a/bash/yubikey/README.md b/bash/yubikey/README.md
new file mode 100644
index 0000000..9b588c9
--- /dev/null
+++ b/bash/yubikey/README.md
@@ -0,0 +1,109 @@
+# YubiKey Scripts
+
+Shell scripts for managing YubiKey hardware security keys on WSL (Windows Subsystem for Linux). Covers SSH key extraction, Git signing key configuration, and fixing USB permission issues that commonly arise in WSL environments.
+
+All scripts require a YubiKey to be attached and forwarded to WSL via `usbipd`. The `ykman` and `yubico-piv-tool` packages must be installed.
+
+## Getting Started
+
+Run scripts via the interactive runner from the project root:
+
+```bash
+make run
+# Select: Bash → yubikey → <script>
+```
+
+Or run directly:
+
+```bash
+bash bash/yubikey/<script-name>.sh
+```
+
+## Table of Contents
+
+- [add-keys-to-git.sh](#add-keys-to-gitsh)
+- [fix-yubikey-perms.sh](#fix-yubikey-permssh)
+- [list-yubikey-ssh-keys.sh](#list-yubikey-ssh-keyssh)
+
+---
+
+## add-keys-to-git.sh
+
+Extracts the SSH public keys from three YubiKey PIV slots and writes them as Git commit signing keys to the corresponding per-context Git config files. Run this after replacing or re-provisioning a YubiKey.
+
+| Slot | Context | Config file |
+|---|---|---|
+| 9a | Personal | `~/.git-naomi` |
+| 9c | Deepgram | `~/.git-dg` |
+| 9e | FreeCodeCamp | `~/.git-fcc` |
+
+### Usage
+
+```bash
+bash bash/yubikey/add-keys-to-git.sh
+```
+
+### Environment Variables
+
+None.
+
+### Data Files
+
+None.
+
+### Notes
+
+- After running, you must upload the new public keys to GitHub (and any other services that verify commit signatures) manually.
+- Requires `ykman` and `ssh-keygen` to be available in your PATH.
+
+---
+
+## fix-yubikey-perms.sh
+
+Repairs YubiKey connectivity in WSL by fixing USB device permissions, restarting smart card services, and applying a polkit policy override that allows smart card access in WSL's "inactive" session context.
+
+### Usage
+
+```bash
+bash bash/yubikey/fix-yubikey-perms.sh
+```
+
+### Environment Variables
+
+None.
+
+### Data Files
+
+None.
+
+### Notes
+
+- Run this script when `ykman` or `yubico-piv-tool` fail with "Failed to connect" or similar errors after attaching the YubiKey via `usbipd`.
+- The polkit fix modifies `/usr/share/polkit-1/actions/org.debian.pcsc-lite.policy` (a backup is created automatically on first run).
+- Requires `sudo` access. Several steps use `sudo` to modify system files and restart services.
+- Requires `lsusb`, `yubico-piv-tool`, `systemctl`, and `gpgconf` to be available.
+
+---
+
+## list-yubikey-ssh-keys.sh
+
+Scans PIV slots 9a, 9c, 9d, and 9e on the connected YubiKey and prints any SSH public keys found, along with the certificate subject label if one is present.
+
+### Usage
+
+```bash
+bash bash/yubikey/list-yubikey-ssh-keys.sh
+```
+
+### Environment Variables
+
+None.
+
+### Data Files
+
+None.
+
+### Notes
+
+- Requires `ykman`, `ssh-keygen`, and `openssl` to be available.
+- Writes a temporary file to `/tmp/yubi_tmp.pem` during execution; it is cleaned up automatically after each slot is processed.
diff --git a/bash/add-keys-to-git.sh b/bash/yubikey/add-keys-to-git.sh
similarity index 100%
rename from bash/add-keys-to-git.sh
rename to bash/yubikey/add-keys-to-git.sh
diff --git a/bash/fix-yubikey-perms.sh b/bash/yubikey/fix-yubikey-perms.sh
similarity index 100%
rename from bash/fix-yubikey-perms.sh
rename to bash/yubikey/fix-yubikey-perms.sh
diff --git a/bash/list-yubikey-ssh-keys.sh b/bash/yubikey/list-yubikey-ssh-keys.sh
similarity index 100%
rename from bash/list-yubikey-ssh-keys.sh
rename to bash/yubikey/list-yubikey-ssh-keys.sh
diff --git a/python/cohort/README.md b/python/cohort/README.md
new file mode 100644
index 0000000..e57bb6b
--- /dev/null
+++ b/python/cohort/README.md
@@ -0,0 +1,883 @@
+# Cohort Scripts
+
+Scripts for managing the NHCarrigan spring cohort programme. Covers the full lifecycle: applicant evaluation, Discord server setup, team assignment, member onboarding, activity tracking, and member removal.
+
+Most scripts interact with the Discord API and require a `DISCORD_BOT_TOKEN`. Several also use the `gh` CLI for GitHub operations.
+
+## Getting Started
+
+Run scripts via the interactive runner from the project root:
+
+```bash
+make run
+# Select: Python → cohort → <script>
+```
+
+Or run directly:
+
+```bash
+cd python && op run --env-file=../prod.env -- uv run python cohort/<script>.py
+```
+
+**Prerequisites:**
+- Run `make install-py` to set up the Python virtual environment.
+- Most scripts require `DISCORD_BOT_TOKEN` set in `prod.env`.
+- Scripts that manage GitHub teams require `gh auth login` to be run first.
+
+## Table of Contents
+
+### Applicant Evaluation
+- [verify_discord.py](#verify_discordpy)
+- [evaluate_technical_proficiency.py](#evaluate_technical_proficiencypy)
+- [analyse_availability.py](#analyse_availabilitypy)
+- [generate_member_files.py](#generate_member_filespy)
+- [generate_timeslots.py](#generate_timeslotspy)
+
+### Server Setup
+- [create_team_voice_channels.py](#create_team_voice_channelspy)
+- [fix_channel_permissions.py](#fix_channel_permissionspy)
+- [update_cohort_leads_permissions.py](#update_cohort_leads_permissionspy)
+- [list_all_guild_roles.py](#list_all_guild_rolespy)
+- [list_discord_roles.py](#list_discord_rolespy)
+- [check_channel_permissions.py](#check_channel_permissionspy)
+
+### Member Onboarding
+- [send_team_messages.py](#send_team_messagespy)
+- [assign_cohort_role.py](#assign_cohort_rolepy)
+- [assign_team_roles.py](#assign_team_rolespy)
+- [add_github_team_members.py](#add_github_team_memberspy)
+
+### Ongoing Management
+- [get_cohort_members.py](#get_cohort_memberspy)
+- [check_member_status.py](#check_member_statuspy)
+- [fetch_roster.py](#fetch_rosterpy)
+- [update_roster_messages.py](#update_roster_messagespy)
+- [send_checkin.py](#send_checkinpy)
+- [send_team_checkin.py](#send_team_checkinpy)
+- [send_team_messages.py](#send_team_messagespy)
+
+### Activity Tracking
+- [discord_activity_checker.py](#discord_activity_checkerpy)
+- [catch_up_report.py](#catch_up_reportpy)
+- [check_lengths.py](#check_lengthspy)
+- [send_activity_report.py](#send_activity_reportpy)
+
+### Member Removal
+- [remove_member.py](#remove_memberpy)
+- [remove_resigned_members.py](#remove_resigned_memberspy)
+- [remove_discord_roles.py](#remove_discord_rolespy)
+
+---
+
+## verify_discord.py
+
+Reads Discord user IDs from a markdown table and verifies each one against the Discord API, checking whether the user is a member of the freeCodeCamp guild. Handles rate limits and retries automatically.
+
+### Usage
+
+```bash
+make run
+# Select: Python → cohort → verify_discord.py
+```
+
+### Environment Variables
+
+| Variable | Description |
+|---|---|
+| `DISCORD_BOT_TOKEN` | Discord bot token |
+
+### Data Files
+
+**Input** (expected in `data/`):
+
+| File | Format | Description |
+|---|---|---|
+| `table.md` | Markdown table | Applicant data; the script reads Discord IDs from the table rows |
+
+**Output** (written to `data/`):
+
+| File | Format | Description |
+|---|---|---|
+| `discord_verification.json` | JSON object | Results grouped as `verified` (with username), `missing`, and `errors` lists |
+
+---
+
+## evaluate_technical_proficiency.py
+
+Evaluates each applicant's technical proficiency by analysing their GitHub profile and self-described expertise. Scores applicants as Beginner, Intermediate, or Advanced based on public repository count, follower count, language variety, and keywords in their self-assessment text.
+
+### Usage
+
+```bash
+make run
+# Select: Python → cohort → evaluate_technical_proficiency.py
+```
+
+### Environment Variables
+
+None. Uses the public GitHub API (unauthenticated, subject to rate limiting).
+
+### Data Files
+
+**Input** (expected in `data/`):
+
+| File | Format | Description |
+|---|---|---|
+| `applicants_to_evaluate.json` | JSON array | Applicant records, each with a GitHub profile URL and a self-description field |
+
+**Output** (written to `data/`):
+
+| File | Format | Description |
+|---|---|---|
+| `proficiency_evaluations.json` | JSON array | Proficiency scores (`Beginner`/`Intermediate`/`Advanced`) and detected tech stacks per applicant |
+
+### Notes
+
+- Unauthenticated GitHub API requests are rate-limited to 60 per hour. For large batches of applicants, consider adding a GitHub token or running the script in smaller chunks.
+
+---
+
+## analyse_availability.py
+
+Parses a markdown table of applicant availability responses with timezone information, converts local timeslot selections to UTC, and produces a JSON summary of UTC coverage across morning, afternoon, evening, and night blocks per applicant.
+
+### Usage
+
+```bash
+make run
+# Select: Python → cohort → analyse_availability.py
+```
+
+### Environment Variables
+
+None.
+
+### Data Files
+
+**Input** (expected in `data/`):
+
+| File | Format | Description |
+|---|---|---|
+| `table.md` | Markdown table | Availability responses with timezone column |
+| `discord_verification.json` | JSON object | Output of `verify_discord.py` — used to link applicants to Discord usernames |
+
+**Output** (written to `data/`):
+
+| File | Format | Description |
+|---|---|---|
+| `availability_analysis.json` | JSON object | UTC block distribution (morning/afternoon/evening/night) per applicant |
+
+---
+
+## generate_member_files.py
+
+Consolidates all evaluation data into two markdown files: one for participants and one for team leaders. Each entry includes the member's tech stack, availability, proficiency level, and (for leaders) their leadership assessment.
+
+### Usage
+
+```bash
+make run
+# Select: Python → cohort → generate_member_files.py
+```
+
+### Environment Variables
+
+None.
+
+### Data Files
+
+**Input** (expected in `data/`):
+
+| File | Format | Description |
+|---|---|---|
+| `discord_verification.json` | JSON object | Verified applicant Discord info |
+| `proficiency_evaluations.json` | JSON array | Technical proficiency scores |
+| `availability_analysis.json` | JSON object | UTC availability blocks |
+| `leadership_candidates.json` | JSON array | Applicants being considered for leadership roles |
+| `leadership_evaluations.json` | JSON array | Leadership assessment results |
+
+**Output** (written to `data/`):
+
+| File | Format | Description |
+|---|---|---|
+| `participants.md` | Markdown | Profile summary for each participant |
+| `leaders.md` | Markdown | Profile summary for each team leader candidate |
+
+---
+
+## generate_timeslots.py
+
+Generates a list of hourly timeslots for use with the [Crabfit](https://crab.fit/) scheduling tool, covering a date range at Los Angeles timezone.
+
+### Usage
+
+```bash
+make run
+# Select: Python → cohort → generate_timeslots.py
+```
+
+### Environment Variables
+
+None.
+
+### Data Files
+
+**Output** (written to `data/`):
+
+| File | Format | Description |
+|---|---|---|
+| `crabfit_timeslots.json` | JSON array of ISO-format strings | One entry per hour across the configured date range |
+
+### Notes
+
+- The date range and timezone are hardcoded in the script. Update the start/end date constants before running.
+
+---
+
+## create_team_voice_channels.py
+
+Creates private voice channels for each cohort team in a specified Discord category. Each channel is visible and joinable only by members who have that team's role.
+
+### Usage
+
+```bash
+make run
+# Select: Python → cohort → create_team_voice_channels.py
+```
+
+### Environment Variables
+
+| Variable | Description |
+|---|---|
+| `DISCORD_BOT_TOKEN` | Discord bot token |
+
+### Data Files
+
+None. Team role IDs and the target category ID are hardcoded in the script.
+
+### Notes
+
+- Update the team role IDs, channel names, and category ID constants in the script before running.
+
+---
+
+## fix_channel_permissions.py
+
+Denies `Send Messages` and `Send Messages in Threads` permissions for the `@everyone` and `@cohort` roles on a specific Discord channel. Used to lock down a channel so only designated roles can post.
+
+### Usage
+
+```bash
+make run
+# Select: Python → cohort → fix_channel_permissions.py
+```
+
+### Environment Variables
+
+| Variable | Description |
+|---|---|
+| `DISCORD_BOT_TOKEN` | Discord bot token |
+
+### Data Files
+
+None. The target channel ID is hardcoded in the script.
+
+### Notes
+
+- Update the `CHANNEL_ID` constant before running.
+
+---
+
+## update_cohort_leads_permissions.py
+
+Grants the Cohort Leads role `MENTION_EVERYONE` and `PIN_MESSAGES` permissions across all 14 team channels.
+
+### Usage
+
+```bash
+make run
+# Select: Python → cohort → update_cohort_leads_permissions.py
+```
+
+### Environment Variables
+
+| Variable | Description |
+|---|---|
+| `DISCORD_BOT_TOKEN` | Discord bot token |
+
+### Data Files
+
+None. Team channel IDs are hardcoded in the script.
+
+---
+
+## list_all_guild_roles.py
+
+Lists all roles in the freeCodeCamp Discord guild, highlighting team and cohort-related roles. Useful for finding role IDs to use in other scripts.
+
+### Usage
+
+```bash
+make run
+# Select: Python → cohort → list_all_guild_roles.py
+```
+
+### Environment Variables
+
+| Variable | Description |
+|---|---|
+| `DISCORD_BOT_TOKEN` | Discord bot token |
+
+### Data Files
+
+None. Output is printed to stdout.
+
+---
+
+## list_discord_roles.py
+
+Lists Discord roles in the freeCodeCamp server, filtering for cohort-, leader-, and 2026-related roles.
+
+### Usage
+
+```bash
+make run
+# Select: Python → cohort → list_discord_roles.py
+```
+
+### Environment Variables
+
+| Variable | Description |
+|---|---|
+| `DISCORD_BOT_TOKEN` | Discord bot token |
+
+### Data Files
+
+None. Output is printed to stdout.
+
+---
+
+## check_channel_permissions.py
+
+Audits `cohort-team-*` Discord channels to identify incorrect `Send Messages` or `Send Messages in Threads` permissions on the `@everyone` or `@cohort` roles.
+
+### Usage
+
+```bash
+make run
+# Select: Python → cohort → check_channel_permissions.py
+```
+
+### Environment Variables
+
+| Variable | Description |
+|---|---|
+| `DISCORD_BOT_TOKEN` | Discord bot token |
+
+### Data Files
+
+None. Results are printed to stdout.
+
+---
+
+## send_team_messages.py
+
+Sends initial welcome and roster messages to all 14 team Discord channels, pins them, and saves the resulting message IDs, channel IDs, and role IDs to `data/team_message_ids.json`. This file is required by several other scripts.
+
+### Usage
+
+```bash
+make run
+# Select: Python → cohort → send_team_messages.py
+```
+
+### Environment Variables
+
+| Variable | Description |
+|---|---|
+| `DISCORD_BOT_TOKEN` | Discord bot token |
+
+### Data Files
+
+**Input** (expected in `data/`):
+
+| File | Format | Description |
+|---|---|---|
+| `team_assignments.json` | JSON object | Team rosters (leaders and participants per team) |
+| `applicants_to_evaluate.json` | JSON array | Applicant data used to populate roster messages |
+
+**Output** (written to `data/`):
+
+| File | Format | Description |
+|---|---|---|
+| `team_message_ids.json` | JSON object | Channel ID, pinned message ID, and role ID per team name |
+
+### Notes
+
+- Run this **once** at the start of the cohort. Other scripts (`send_checkin.py`, `update_roster_messages.py`, etc.) depend on `team_message_ids.json`.
+
+---
+
+## assign_cohort_role.py
+
+Assigns the Cohort Discord role to all cohort participants. Reads the full list of unique member Discord IDs from `team_assignments.json` and assigns the role to each one, with exponential backoff to handle rate limits.
+
+### Usage
+
+```bash
+make run
+# Select: Python → cohort → assign_cohort_role.py
+```
+
+### Environment Variables
+
+| Variable | Description |
+|---|---|
+| `DISCORD_BOT_TOKEN` | Discord bot token |
+
+### Data Files
+
+**Input** (expected in `data/`):
+
+| File | Format | Description |
+|---|---|---|
+| `team_assignments.json` | JSON object | Team rosters; all unique user IDs are extracted from here |
+
+---
+
+## assign_team_roles.py
+
+Assigns team-specific Discord roles to all cohort participants based on their team membership in `team_assignments.json`. Uses exponential backoff for rate limit handling.
+
+### Usage
+
+```bash
+make run
+# Select: Python → cohort → assign_team_roles.py
+```
+
+### Environment Variables
+
+| Variable | Description |
+|---|---|
+| `DISCORD_BOT_TOKEN` | Discord bot token |
+
+### Data Files
+
+**Input** (expected in `data/`):
+
+| File | Format | Description |
+|---|---|---|
+| `team_assignments.json` | JSON object | Team rosters with Discord IDs and corresponding role IDs |
+
+---
+
+## add_github_team_members.py
+
+Adds cohort members to their corresponding GitHub teams in the `nhcarrigan-spring-2026-cohort` organisation. Leaders are added to both the main team and the corresponding `-leaders` sub-team; participants are added to the main team only.
+
+### Usage
+
+```bash
+make run
+# Select: Python → cohort → add_github_team_members.py
+```
+
+### Environment Variables
+
+None. Uses the `gh` CLI for authentication (run `gh auth login` first).
+
+### Data Files
+
+**Input** (expected in `data/`):
+
+| File | Format | Description |
+|---|---|---|
+| `team_assignments.json` | JSON object | Team rosters with leader/participant distinction |
+| `discord_to_github.json` | JSON object | Maps Discord user IDs to GitHub usernames |
+
+---
+
+## get_cohort_members.py
+
+Fetches all Discord guild members with the Cohort role and writes their IDs, usernames, and display names to a JSON file. Also prints a formatted list to stdout.
+
+### Usage
+
+```bash
+make run
+# Select: Python → cohort → get_cohort_members.py
+```
+
+### Environment Variables
+
+| Variable | Description |
+|---|---|
+| `DISCORD_BOT_TOKEN` | Discord bot token |
+
+### Data Files
+
+**Output** (written to `data/`):
+
+| File | Format | Description |
+|---|---|---|
+| `active_cohort_members.json` | JSON array | Objects with `id`, `username`, and `display_name` for each Cohort role member |
+
+---
+
+## check_member_status.py
+
+Verifies whether specific Discord member IDs are still in the freeCodeCamp guild by querying the Discord API. Used to confirm that removed members have been successfully ejected.
+
+### Usage
+
+```bash
+make run
+# Select: Python → cohort → check_member_status.py
+```
+
+### Environment Variables
+
+| Variable | Description |
+|---|---|
+| `DISCORD_BOT_TOKEN` | Discord bot token |
+
+### Data Files
+
+None. The member IDs to check are hardcoded in the script. Update the list before running.
+
+---
+
+## fetch_roster.py
+
+Fetches pinned messages from a specific team channel to retrieve the current roster.
+
+### Usage
+
+```bash
+make run
+# Select: Python → cohort → fetch_roster.py
+```
+
+### Environment Variables
+
+| Variable | Description |
+|---|---|
+| `DISCORD_BOT_TOKEN` | Discord bot token |
+
+### Data Files
+
+None. Output is printed to stdout as JSON.
+
+### Notes
+
+- The target channel ID is hardcoded. Update it before running.
+
+---
+
+## update_roster_messages.py
+
+Edits the pinned team roster messages in each Discord channel with the latest data from `team_assignments.json` and `discord_to_github.json`. Run this after any membership changes to keep the pinned rosters up to date.
+
+### Usage
+
+```bash
+make run
+# Select: Python → cohort → update_roster_messages.py
+```
+
+### Environment Variables
+
+| Variable | Description |
+|---|---|
+| `DISCORD_BOT_TOKEN` | Discord bot token |
+
+### Data Files
+
+**Input** (expected in `data/`):
+
+| File | Format | Description |
+|---|---|---|
+| `team_message_ids.json` | JSON object | Channel and message IDs per team (output of `send_team_messages.py`) |
+| `team_assignments.json` | JSON object | Current team rosters |
+| `discord_to_github.json` | JSON object | Discord ID → GitHub username mapping |
+
+---
+
+## send_checkin.py
+
+Sends biweekly check-in prompts to all team Discord channels (except Jade Jasmine), automatically creating threads for responses. Members who do not respond face removal for inactivity.
+
+### Usage
+
+```bash
+make run
+# Select: Python → cohort → send_checkin.py
+```
+
+### Environment Variables
+
+| Variable | Description |
+|---|---|
+| `DISCORD_BOT_TOKEN` | Discord bot token |
+
+### Data Files
+
+**Input** (expected in `data/`):
+
+| File | Format | Description |
+|---|---|---|
+| `team_message_ids.json` | JSON object | Channel IDs per team |
+
+---
+
+## send_team_checkin.py
+
+Sends a capacity check-in message to each team channel asking whether the team feels able to complete their project with their current member count, and inviting them to request support if needed.
+
+### Usage
+
+```bash
+make run
+# Select: Python → cohort → send_team_checkin.py
+```
+
+### Environment Variables
+
+| Variable | Description |
+|---|---|
+| `DISCORD_BOT_TOKEN` | Discord bot token |
+
+### Data Files
+
+**Input** (expected in `data/`):
+
+| File | Format | Description |
+|---|---|---|
+| `team_message_ids.json` | JSON object | Channel IDs per team |
+| `team_assignments.json` | JSON object | Current team rosters (used to mention team members) |
+
+---
+
+## discord_activity_checker.py
+
+Scans each team's Discord channel and threads to identify members who have not sent a message within the last 36 hours. Can optionally send notification messages directly to inactive members via the `--send` CLI flag.
+
+### Usage
+
+```bash
+# Check only (no messages sent)
+make run
+# Select: Python → cohort → discord_activity_checker.py
+
+# Check and notify inactive members
+cd python && op run --env-file=../prod.env -- uv run python cohort/discord_activity_checker.py --send
+```
+
+### Environment Variables
+
+| Variable | Description |
+|---|---|
+| `DISCORD_BOT_TOKEN` | Discord bot token |
+
+### Data Files
+
+**Input** (expected in `data/`):
+
+| File | Format | Description |
+|---|---|---|
+| `team_assignments.json` | JSON object | Member lists per team |
+
+**Output** (written to `data/`):
+
+| File | Format | Description |
+|---|---|---|
+| `discord_activity_report.json` | JSON object | Inactive members per team with their last message timestamp |
+
+---
+
+## catch_up_report.py
+
+Generates a detailed markdown activity report covering Discord messages (in team channels and their threads) and GitHub activity (PRs, issues, comments, reviews, commits) since a configured start date. Uses async API calls for efficiency.
+
+### Usage
+
+```bash
+make run
+# Select: Python → cohort → catch_up_report.py
+```
+
+### Environment Variables
+
+| Variable | Description |
+|---|---|
+| `DISCORD_BOT_TOKEN` | Discord bot token |
+
+### Data Files
+
+**Input** (expected in `data/`):
+
+| File | Format | Description |
+|---|---|---|
+| `team_assignments.json` | JSON object | Team rosters |
+| `discord_to_github.json` | JSON object | Discord ID → GitHub username mapping |
+
+**Output** (written to `data/`):
+
+| File | Format | Description |
+|---|---|---|
+| `catch_up_report.md` | Markdown table | Activity counts per member (Discord messages + GitHub contributions) per team |
+
+### Notes
+
+- The report start date is hardcoded in the script. Update it before each use.
+- GitHub activity is fetched via the unauthenticated public API; rate limiting may apply for large cohorts.
+
+---
+
+## check_lengths.py
+
+Dry-run validation that parses `catch_up_report.md` and formats each team's data into Discord monospace table strings, checking whether any would exceed Discord's 2,000-character message limit before actually sending them.
+
+### Usage
+
+```bash
+make run
+# Select: Python → cohort → check_lengths.py
+```
+
+### Environment Variables
+
+None.
+
+### Data Files
+
+**Input** (expected in `data/`):
+
+| File | Format | Description |
+|---|---|---|
+| `catch_up_report.md` | Markdown table | Output of `catch_up_report.py` |
+
+### Notes
+
+- Run this after `catch_up_report.py` and before `send_activity_report.py` to catch any messages that would be rejected by Discord.
+
+---
+
+## send_activity_report.py
+
+Parses `catch_up_report.md` and sends the formatted activity table for each team to its Discord channel as a monospace code block.
+
+### Usage
+
+```bash
+make run
+# Select: Python → cohort → send_activity_report.py
+```
+
+### Environment Variables
+
+| Variable | Description |
+|---|---|
+| `DISCORD_BOT_TOKEN` | Discord bot token |
+
+### Data Files
+
+**Input** (expected in `data/`):
+
+| File | Format | Description |
+|---|---|---|
+| `catch_up_report.md` | Markdown table | Output of `catch_up_report.py` |
+
+### Notes
+
+- Run `check_lengths.py` first to verify that no messages exceed Discord's character limit.
+
+---
+
+## remove_member.py
+
+Comprehensive member removal script. Given a Discord ID as a CLI argument, it:
+
+1. Removes the member from `team_assignments.json`.
+2. Removes the member from `discord_to_github.json`.
+3. Prints GitHub removal instructions.
+4. Removes the member's Discord Cohort and team roles.
+5. Sends an announcement message to the team's Discord channel.
+6. Outputs markdown notes suitable for pasting into `COHORT_NOTES.md`.
+
+### Usage
+
+```bash
+cd python && op run --env-file=../prod.env -- uv run python cohort/remove_member.py <discord_id>
+```
+
+### Environment Variables
+
+| Variable | Description |
+|---|---|
+| `DISCORD_BOT_TOKEN` | Discord bot token |
+
+### Data Files
+
+**Input/Output** (read and updated in `data/`):
+
+| File | Format | Description |
+|---|---|---|
+| `team_assignments.json` | JSON object | Updated: member removed from their team |
+| `discord_to_github.json` | JSON object | Updated: Discord→GitHub mapping removed |
+| `team_message_ids.json` | JSON object | Read: used to find the team's Discord channel ID |
+
+---
+
+## remove_resigned_members.py
+
+Removes a list of resigned member Discord IDs from `team_assignments.json`, updating team rosters and reporting which teams were affected. Does not interact with Discord or GitHub.
+
+### Usage
+
+```bash
+make run
+# Select: Python → cohort → remove_resigned_members.py
+```
+
+### Environment Variables
+
+None.
+
+### Data Files
+
+**Input/Output** (read and updated in `data/`):
+
+| File | Format | Description |
+|---|---|---|
+| `team_assignments.json` | JSON object | Updated in place; affected teams are reported to stdout |
+
+### Notes
+
+- The list of Discord IDs to remove is hardcoded in the script. Update it before running.
+- This script only updates the local JSON file. Run `update_roster_messages.py` and handle GitHub/Discord role removal separately.
+
+---
+
+## remove_discord_roles.py
+
+Removes the Cohort and team-specific Discord roles from a hardcoded list of inactive members.
+
+### Usage
+
+```bash
+make run
+# Select: Python → cohort → remove_discord_roles.py
+```
+
+### Environment Variables
+
+| Variable | Description |
+|---|---|
+| `DISCORD_BOT_TOKEN` | Discord bot token |
+
+### Data Files
+
+None. Member IDs and their team-to-role mappings are hardcoded in the script. Update them before running.
+
diff --git a/python/cohort/add_github_team_members.py b/python/cohort/add_github_team_members.py
index dafda8a..175385f 100755
--- a/python/cohort/add_github_team_members.py
+++ b/python/cohort/add_github_team_members.py
@@ -1,15 +1,29 @@
 #!/usr/bin/env python3
-"""Add GitHub users to their appropriate teams in nhcarrigan-spring-2026-cohort org"""
+"""Add GitHub users to their appropriate teams in the cohort GitHub organisation.
+
+Uses the GitHub CLI to add each member to their corresponding team and, for
+leaders, to the team's leaders sub-team.
+
+Data files (place in data/):
+  - team_assignments.json   Team rosters with leaders and participants per team
+  - discord_to_github.json  Mapping of Discord IDs to GitHub usernames
+
+Env vars:
+  - None (uses `gh` CLI for authentication)
+"""
 
 import json
 import subprocess
 import time
+from pathlib import Path
+
+DATA_DIR = Path(__file__).parent.parent.parent / "data"
 
 # Load team assignments and Discord to GitHub mappings
-with open("team_assignments.json") as f:
+with open(DATA_DIR / "team_assignments.json") as f:
     teams = json.load(f)
 
-with open("discord_to_github.json") as f:
+with open(DATA_DIR / "discord_to_github.json") as f:
     discord_to_github = json.load(f)
 
 # Map team names to GitHub team slugs
diff --git a/python/cohort/analyse_availability.py b/python/cohort/analyse_availability.py
index 438ee78..723aa98 100644
--- a/python/cohort/analyse_availability.py
+++ b/python/cohort/analyse_availability.py
@@ -1,6 +1,26 @@
+"""Analyse applicant availability from a markdown table and produce UTC block stats.
+
+Reads a markdown table of availability responses and a Discord verification file,
+then produces a JSON summary of coverage across morning/afternoon/evening UTC blocks
+for each day of the week.
+
+Data files (place in data/):
+  - table.md                   Markdown table of applicant availability responses
+  - discord_verification.json  Discord ID verification results (from verify_discord.py)
+
+Outputs (written to data/):
+  - availability_analysis.json  UTC block distribution per applicant
+
+Env vars:
+  - None
+"""
+
 import json
 import re
 from collections import defaultdict
+from pathlib import Path
+
+DATA_DIR = Path(__file__).parent.parent.parent / "data"
 
 DAYS = ["Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday"]
 
@@ -99,7 +119,7 @@ def analyze_applicant_availability(timezone_str: str, day_slots: dict) -> dict:
 
 def parse_table_md() -> list[dict]:
     """Parse table.md and extract availability data"""
-    with open("table.md") as f:
+    with open(DATA_DIR / "table.md") as f:
         content = f.read()
 
     lines = content.strip().split("\n")
@@ -131,7 +151,7 @@ def parse_table_md() -> list[dict]:
 
 
 def main():
-    with open("discord_verification.json") as f:
+    with open(DATA_DIR / "discord_verification.json") as f:
         verification = json.load(f)
 
     verified_ids = {v[0] for v in verification["verified"]}
@@ -167,7 +187,7 @@ def main():
             }
         )
 
-    with open("availability_analysis.json", "w") as f:
+    with open(DATA_DIR / "availability_analysis.json", "w") as f:
         json.dump(availability_results, f, indent=2)
 
     block_distribution = defaultdict(int)
diff --git a/python/cohort/assign_cohort_role.py b/python/cohort/assign_cohort_role.py
index 97e0ba7..0a9e26f 100644
--- a/python/cohort/assign_cohort_role.py
+++ b/python/cohort/assign_cohort_role.py
@@ -6,9 +6,12 @@ Respects Discord rate limits with proper backoff and retry logic.
 import json
 import os
 import time
+from pathlib import Path
 
 import requests
 
+DATA_DIR = Path(__file__).parent.parent.parent / "data"
+
 BOT_TOKEN = os.environ["DISCORD_BOT_TOKEN"]
 GUILD_ID = "692816967895220344"
 COHORT_ROLE_ID = "1464314780935258112"
@@ -48,7 +51,7 @@ def assign_role_with_retry(user_id: str, role_id: str, max_retries: int = 5) ->
 
 
 def main():
-    with open("team_assignments.json") as f:
+    with open(DATA_DIR / "team_assignments.json") as f:
         teams = json.load(f)
 
     all_users = []
diff --git a/python/cohort/assign_team_roles.py b/python/cohort/assign_team_roles.py
index 91bf134..de162d2 100644
--- a/python/cohort/assign_team_roles.py
+++ b/python/cohort/assign_team_roles.py
@@ -6,9 +6,12 @@ Respects Discord rate limits with proper backoff and retry logic.
 import json
 import os
 import time
+from pathlib import Path
 
 import requests
 
+DATA_DIR = Path(__file__).parent.parent.parent / "data"
+
 BOT_TOKEN = os.environ["DISCORD_BOT_TOKEN"]
 GUILD_ID = "692816967895220344"
 
@@ -64,7 +67,7 @@ def assign_role_with_retry(user_id: str, role_id: str, max_retries: int = 5) ->
 
 
 def main():
-    with open("team_assignments.json") as f:
+    with open(DATA_DIR / "team_assignments.json") as f:
         teams = json.load(f)
 
     print(f"Assigning team roles to {len(teams)} teams...")
diff --git a/python/cohort/catch_up_report.py b/python/cohort/catch_up_report.py
new file mode 100644
index 0000000..41a0d98
--- /dev/null
+++ b/python/cohort/catch_up_report.py
@@ -0,0 +1,519 @@
+#!/usr/bin/env python3
+"""Catch-Up Activity Report.
+
+Generates a markdown report of Discord and GitHub activity since Feb 15, 2026.
+Covers Discord messages in team channels (+ threads) and GitHub activity
+(PRs opened, issues opened, issue comments, PR comments, PR reviews, commits).
+"""
+
+import asyncio
+import json
+import os
+import subprocess
+from datetime import datetime, timezone
+from pathlib import Path
+
+import aiohttp
+
+DATA_DIR = Path(__file__).parent.parent.parent / "data"
+
+DISCORD_BOT_TOKEN = os.environ["DISCORD_BOT_TOKEN"]
+DISCORD_API_BASE = "https://discord.com/api/v10"
+GITHUB_API_BASE = "https://api.github.com"
+GITHUB_ORG = "nhcarrigan-spring-2026-cohort"
+
+CUTOFF = datetime(2026, 2, 15, 0, 0, 0, tzinfo=timezone.utc)
+CUTOFF_ISO = CUTOFF.isoformat().replace("+00:00", "Z")
+
+OUTPUT_FILE = "catch_up_report.md"
+
+TEXT_CHANNEL_IDS: dict[str, str] = {
+    "Crimson Dahlia": "1464316744909852682",
+    "Rose Camellia": "1464316751268286611",
+    "Amber Wisteria": "1464316761410113641",
+    "Ivory Orchid": "1464316770889240730",
+    "Teal Iris": "1464316776459407448",
+    "Peach Gardenia": "1464316785040953543",
+    "Violet Carnation": "1464316805261824032",
+    "Azure Lotus": "1464316814455472139",
+    "Coral Sunflower": "1464316819711066263",
+    "Indigo Tulip": "1464316826384072925",
+    "Scarlet Hydrangea": "1464316839306985506",
+    "Mint Narcissus": "1464316844251807952",
+    "Sage Marigold": "1464316850669093040",
+}
+
+
+def team_repo_slug(team_name: str) -> str:
+    """Convert a team name to its repository slug."""
+    return team_name.lower().replace(" ", "-")
+
+
+def get_github_token() -> str:
+    """Retrieve the GitHub token via the gh CLI."""
+    result = subprocess.run(
+        ["gh", "auth", "token"], capture_output=True, text=True, check=True
+    )
+    return result.stdout.strip()
+
+
+class ActivityCollector:
+    """Collects Discord and GitHub activity for the catch-up report."""
+
+    def __init__(self, discord_token: str, github_token: str) -> None:
+        self.discord_headers = {
+            "Authorization": f"Bot {discord_token}",
+            "Content-Type": "application/json",
+        }
+        self.github_headers = {
+            "Authorization": f"Bearer {github_token}",
+            "Accept": "application/vnd.github+json",
+            "X-GitHub-Api-Version": "2022-11-28",
+        }
+        self.session: aiohttp.ClientSession | None = None
+
+    async def __aenter__(self) -> "ActivityCollector":
+        self.session = aiohttp.ClientSession()
+        return self
+
+    async def __aexit__(
+        self, exc_type: object, exc_val: object, exc_tb: object
+    ) -> None:
+        if self.session:
+            await self.session.close()
+
+    async def get_discord_username(self, user_id: str) -> str:
+        """Fetch a Discord user's display name or username."""
+        url = f"{DISCORD_API_BASE}/users/{user_id}"
+        async with self.session.get(url, headers=self.discord_headers) as response:
+            if response.status == 429:
+                retry_after = float((await response.json()).get("retry_after", 1))
+                await asyncio.sleep(retry_after)
+                return await self.get_discord_username(user_id)
+            if response.status != 200:
+                return "*(unknown)*"
+            data = await response.json()
+            return data.get("global_name") or data.get("username") or "*(unknown)*"
+
+    async def _get_discord_thread_ids(self, channel_id: str) -> list[str]:
+        """Return IDs of all active and archived threads in a channel."""
+        thread_ids: list[str] = []
+
+        url = f"{DISCORD_API_BASE}/channels/{channel_id}/threads/active"
+        async with self.session.get(url, headers=self.discord_headers) as response:
+            if response.status == 200:
+                data = await response.json()
+                thread_ids.extend(t["id"] for t in data.get("threads", []))
+
+        for archive_type in ("public", "private"):
+            url = (
+                f"{DISCORD_API_BASE}/channels/{channel_id}"
+                f"/threads/archived/{archive_type}"
+            )
+            async with self.session.get(url, headers=self.discord_headers) as response:
+                if response.status == 200:
+                    data = await response.json()
+                    thread_ids.extend(t["id"] for t in data.get("threads", []))
+
+        return thread_ids
+
+    async def _count_messages_in_channel(
+        self, channel_id: str, label: str = ""
+    ) -> dict[str, int]:
+        """Count messages per Discord user ID since CUTOFF."""
+        counts: dict[str, int] = {}
+        before_id: str | None = None
+        page = 0
+
+        while True:
+            url = f"{DISCORD_API_BASE}/channels/{channel_id}/messages?limit=100"
+            if before_id:
+                url += f"&before={before_id}"
+
+            async with self.session.get(url, headers=self.discord_headers) as response:
+                if response.status == 429:
+                    retry_after = float((await response.json()).get("retry_after", 1))
+                    print(f"    [Discord] rate limited, waiting {retry_after:.1f}s...")
+                    await asyncio.sleep(retry_after)
+                    continue
+                if response.status != 200:
+                    print(f"  [Discord] channel {channel_id} → HTTP {response.status}")
+                    break
+
+                messages: list[dict] = await response.json()
+                if not messages:
+                    break
+
+                page += 1
+                prefix = f" ({label})" if label else ""
+                print(
+                    f"    [Discord]{prefix} page {page} — {len(messages)} messages fetched",  # noqa: E501
+                    end="\r",
+                )
+
+                reached_cutoff = False
+                for message in messages:
+                    ts = datetime.fromisoformat(
+                        message["timestamp"].replace("Z", "+00:00")
+                    )
+                    if ts < CUTOFF:
+                        reached_cutoff = True
+                        break
+                    if message["author"].get("bot", False):
+                        continue
+                    author_id = message["author"]["id"]
+                    counts[author_id] = counts.get(author_id, 0) + 1
+
+                if reached_cutoff or len(messages) < 100:
+                    print()
+                    break
+
+                before_id = messages[-1]["id"]
+                await asyncio.sleep(0.5)
+
+        return counts
+
+    async def collect_discord_counts(
+        self, team_name: str, channel_id: str, member_ids: list[str]
+    ) -> dict[str, int]:
+        """Return message counts per member for a team's channel and threads."""
+        print("  [Discord] Scanning main channel...")
+        totals: dict[str, int] = await self._count_messages_in_channel(
+            channel_id, label="main"
+        )
+
+        thread_ids = await self._get_discord_thread_ids(channel_id)
+        total_threads = len(thread_ids)
+        for i, thread_id in enumerate(thread_ids, start=1):
+            print(f"  [Discord] Scanning thread {i}/{total_threads}...")
+            thread_counts = await self._count_messages_in_channel(
+                thread_id, label=f"thread {i}/{total_threads}"
+            )
+            for user_id, count in thread_counts.items():
+                totals[user_id] = totals.get(user_id, 0) + count
+            await asyncio.sleep(0.3)
+
+        if total_threads == 0:
+            print("  [Discord] No threads found.")
+
+        return {member_id: totals.get(member_id, 0) for member_id in member_ids}
+
+    async def _github_get_all_pages(self, url: str, params: dict) -> list[dict]:
+        """Fetch all pages from a paginated GitHub REST API endpoint."""
+        results: list[dict] = []
+        page = 1
+
+        while True:
+            paged_params = {**params, "per_page": 100, "page": page}
+            async with self.session.get(
+                url, headers=self.github_headers, params=paged_params
+            ) as response:
+                if response.status in (404, 422):
+                    break
+                if response.status == 403:
+                    print(f"  [GitHub] rate limited on {url}, waiting 60s...")
+                    await asyncio.sleep(60)
+                    continue
+                if response.status != 200:
+                    print(f"  [GitHub] {url} → HTTP {response.status}")
+                    break
+
+                data: list[dict] = await response.json()
+                if not data:
+                    break
+
+                results.extend(data)
+
+                if len(data) < 100:
+                    break
+                page += 1
+                await asyncio.sleep(0.2)
+
+        return results
+
+    async def collect_github_counts(
+        self, team_name: str, github_usernames: list[str]
+    ) -> dict[str, dict[str, int]]:
+        """Return activity counts per member for a team's GitHub repository."""
+        repo_slug = team_repo_slug(team_name)
+        repo = f"{GITHUB_ORG}/{repo_slug}"
+        print(f"  [GitHub] repo: {repo}")
+
+        counts: dict[str, dict[str, int]] = {
+            username: {
+                "prs_opened": 0,
+                "issues_opened": 0,
+                "issue_comments": 0,
+                "pr_comments": 0,
+                "pr_reviews": 0,
+                "commits": 0,
+            }
+            for username in github_usernames
+            if username
+        }
+
+        def resolve_username(login: str) -> str | None:
+            lower = login.lower()
+            for u in github_usernames:
+                if u and u.lower() == lower:
+                    return u
+            return None
+
+        print("  [GitHub] Fetching PRs...")
+        prs = await self._github_get_all_pages(
+            f"{GITHUB_API_BASE}/repos/{repo}/pulls",
+            {"state": "all", "sort": "created", "direction": "desc"},
+        )
+        print(f"  [GitHub] {len(prs)} PRs fetched — counting opens since cutoff...")
+        for pr in prs:
+            created_at = datetime.fromisoformat(pr["created_at"].replace("Z", "+00:00"))
+            if created_at < CUTOFF:
+                break
+            login = pr["user"]["login"]
+            username = resolve_username(login)
+            if username:
+                counts[username]["prs_opened"] += 1
+
+        print("  [GitHub] Fetching issues...")
+        issues = await self._github_get_all_pages(
+            f"{GITHUB_API_BASE}/repos/{repo}/issues",
+            {
+                "state": "all",
+                "sort": "created",
+                "direction": "desc",
+                "since": CUTOFF_ISO,
+            },
+        )
+        print(f"  [GitHub] {len(issues)} issues/PRs fetched — counting issue opens...")
+        for issue in issues:
+            if "pull_request" in issue:
+                continue
+            created_at = datetime.fromisoformat(
+                issue["created_at"].replace("Z", "+00:00")
+            )
+            if created_at < CUTOFF:
+                continue
+            login = issue["user"]["login"]
+            username = resolve_username(login)
+            if username:
+                counts[username]["issues_opened"] += 1
+
+        print("  [GitHub] Fetching issue comments...")
+        issue_comments = await self._github_get_all_pages(
+            f"{GITHUB_API_BASE}/repos/{repo}/issues/comments",
+            {"sort": "created", "direction": "desc", "since": CUTOFF_ISO},
+        )
+        print(f"  [GitHub] {len(issue_comments)} issue comments fetched.")
+        for comment in issue_comments:
+            created_at = datetime.fromisoformat(
+                comment["created_at"].replace("Z", "+00:00")
+            )
+            if created_at < CUTOFF:
+                continue
+            login = comment["user"]["login"]
+            username = resolve_username(login)
+            if username:
+                counts[username]["issue_comments"] += 1
+
+        print("  [GitHub] Fetching PR review comments...")
+        pr_comments = await self._github_get_all_pages(
+            f"{GITHUB_API_BASE}/repos/{repo}/pulls/comments",
+            {"sort": "created", "direction": "desc", "since": CUTOFF_ISO},
+        )
+        print(f"  [GitHub] {len(pr_comments)} PR review comments fetched.")
+        for comment in pr_comments:
+            created_at = datetime.fromisoformat(
+                comment["created_at"].replace("Z", "+00:00")
+            )
+            if created_at < CUTOFF:
+                continue
+            login = comment["user"]["login"]
+            username = resolve_username(login)
+            if username:
+                counts[username]["pr_comments"] += 1
+
+        all_pr_numbers = [pr["number"] for pr in prs]
+        total_prs = len(all_pr_numbers)
+        print(f"  [GitHub] Fetching reviews for {total_prs} PRs...")
+        for i, pr_number in enumerate(all_pr_numbers, start=1):
+            print(f"  [GitHub] PR reviews: {i}/{total_prs}", end="\r")
+            reviews = await self._github_get_all_pages(
+                f"{GITHUB_API_BASE}/repos/{repo}/pulls/{pr_number}/reviews",
+                {},
+            )
+            for review in reviews:
+                submitted_at_raw = review.get("submitted_at")
+                if not submitted_at_raw:
+                    continue
+                submitted_at = datetime.fromisoformat(
+                    submitted_at_raw.replace("Z", "+00:00")
+                )
+                if submitted_at < CUTOFF:
+                    continue
+                login = review["user"]["login"]
+                username = resolve_username(login)
+                if username:
+                    counts[username]["pr_reviews"] += 1
+            await asyncio.sleep(0.1)
+        if total_prs > 0:
+            print()
+
+        member_list = list(counts.keys())
+        total_members = len(member_list)
+        print(f"  [GitHub] Fetching commits for {total_members} members...")
+        for i, username in enumerate(member_list, start=1):
+            print(f"  [GitHub] Commits: {i}/{total_members} ({username})", end="\r")
+            commits = await self._github_get_all_pages(
+                f"{GITHUB_API_BASE}/repos/{repo}/commits",
+                {"author": username, "since": CUTOFF_ISO},
+            )
+            counts[username]["commits"] = len(commits)
+            await asyncio.sleep(0.2)
+        if total_members > 0:
+            print()
+
+        return counts
+
+
+def build_report(
+    team_data: list[dict],
+    discord_to_github: dict[str, str],
+    discord_usernames: dict[str, str],
+    discord_results: dict[str, dict[str, int]],
+    github_results: dict[str, dict[str, dict[str, int]]],
+) -> str:
+    """Build the markdown activity report."""
+    lines = [
+        "# Catch-Up Activity Report",
+        "",
+        f"**Period:** 2026-02-15 00:00 UTC → "
+        f"{datetime.now(timezone.utc).strftime('%Y-%m-%d %H:%M')} UTC",
+        "",
+        "## Activity by Team",
+        "",
+        "| Discord ID | Discord Username | GitHub Username | Team | "
+        "Discord Messages | PRs Opened | Issues Opened | Issue Comments | "
+        "PR Comments | PR Reviews | Commits |",
+        "|------------|-----------------|-----------------|------|"
+        "-----------------|------------|---------------|----------------|"
+        "-------------|------------|---------|",
+    ]
+
+    for team in team_data:
+        team_name = team["name"]
+        if team_name == "Jade Jasmine":
+            continue
+
+        member_ids = team["leaders"] + team["participants"]
+        team_discord_counts = discord_results.get(team_name, {})
+        team_github_counts = github_results.get(team_name, {})
+
+        for member_id in member_ids:
+            github_username = discord_to_github.get(member_id, "")
+            discord_username = discord_usernames.get(member_id, "*(unknown)*")
+            discord_msg_count = team_discord_counts.get(member_id, 0)
+
+            if github_username:
+                gh = team_github_counts.get(github_username, {})
+                prs = gh.get("prs_opened", 0)
+                issues = gh.get("issues_opened", 0)
+                issue_comments = gh.get("issue_comments", 0)
+                pr_comments = gh.get("pr_comments", 0)
+                pr_reviews = gh.get("pr_reviews", 0)
+                commits = gh.get("commits", 0)
+            else:
+                prs = issues = issue_comments = pr_comments = pr_reviews = commits = (
+                    "N/A"
+                )
+
+            lines.append(
+                f"| {member_id} | {discord_username} | {github_username or 'N/A'} "
+                f"| {team_name} | {discord_msg_count} | {prs} | {issues} "
+                f"| {issue_comments} | {pr_comments} | {pr_reviews} | {commits} |"
+            )
+
+    lines.append("")
+    lines.append(
+        f"*Generated at {datetime.now(timezone.utc).strftime('%Y-%m-%d %H:%M:%S')} UTC*"
+    )
+
+    return "\n".join(lines)
+
+
+async def main() -> None:
+    """Run the catch-up activity report."""
+    print("Loading data files...")
+    with open(DATA_DIR / "team_assignments.json") as f:
+        team_data: list[dict] = json.load(f)
+
+    with open(DATA_DIR / "discord_to_github.json") as f:
+        discord_to_github: dict[str, str] = json.load(f)
+
+    print("Getting GitHub token via gh CLI...")
+    github_token = get_github_token()
+
+    print(f"\nCollecting activity since {CUTOFF.isoformat()}...\n")
+
+    discord_results: dict[str, dict[str, int]] = {}
+    github_results: dict[str, dict[str, dict[str, int]]] = {}
+    discord_usernames: dict[str, str] = {}
+
+    async with ActivityCollector(DISCORD_BOT_TOKEN, github_token) as collector:
+        all_member_ids: list[str] = []
+        for team in team_data:
+            if team["name"] == "Jade Jasmine":
+                continue
+            all_member_ids.extend(team["leaders"] + team["participants"])
+
+        unique_member_ids = list(dict.fromkeys(all_member_ids))
+        total_members = len(unique_member_ids)
+        print(f"Fetching Discord usernames for {total_members} members...")
+        for i, member_id in enumerate(unique_member_ids, start=1):
+            if member_id not in discord_usernames:
+                print(f"  username {i}/{total_members}...", end="\r")
+                discord_usernames[member_id] = await collector.get_discord_username(
+                    member_id
+                )
+                await asyncio.sleep(0.3)
+        print(f"  Done — {total_members} usernames fetched.          ")
+
+        for team in team_data:
+            team_name = team["name"]
+            if team_name == "Jade Jasmine":
+                continue
+
+            print(f"\n=== {team_name} ===")
+            channel_id = TEXT_CHANNEL_IDS[team_name]
+            member_ids = team["leaders"] + team["participants"]
+
+            discord_results[team_name] = await collector.collect_discord_counts(
+                team_name, channel_id, member_ids
+            )
+
+            github_usernames_for_team = [
+                discord_to_github[mid]
+                for mid in member_ids
+                if mid in discord_to_github and discord_to_github[mid]
+            ]
+
+            github_results[team_name] = await collector.collect_github_counts(
+                team_name, github_usernames_for_team
+            )
+
+    print("\nBuilding report...")
+    report = build_report(
+        team_data,
+        discord_to_github,
+        discord_usernames,
+        discord_results,
+        github_results,
+    )
+
+    with open(OUTPUT_FILE, "w") as f:
+        f.write(report)
+
+    print(f"\n✅ Report saved to {OUTPUT_FILE}")
+
+
+if __name__ == "__main__":
+    asyncio.run(main())
diff --git a/python/cohort/check_channel_permissions.py b/python/cohort/check_channel_permissions.py
new file mode 100644
index 0000000..ed748f5
--- /dev/null
+++ b/python/cohort/check_channel_permissions.py
@@ -0,0 +1,142 @@
+#!/usr/bin/env python3
+"""Check cohort-team-* channels for incorrect @everyone or @cohort permissions.
+
+Find channels where @everyone or @cohort has Send Messages or
+Send Messages in Threads enabled.
+"""
+
+import asyncio
+import os
+
+import aiohttp
+
+DISCORD_BOT_TOKEN = os.environ["DISCORD_BOT_TOKEN"]
+BASE_URL = "https://discord.com/api/v10"
+GUILD_ID = "739845668582981683"
+
+SEND_MESSAGES = 0x0000000000000800
+SEND_MESSAGES_IN_THREADS = 0x0000004000000000
+
+
+async def check_permissions() -> None:
+    """Check all cohort-team-* channels for permission issues."""
+    headers = {"Authorization": f"Bot {DISCORD_BOT_TOKEN}"}
+
+    async with aiohttp.ClientSession() as session:
+        print("Fetching channels...")
+        async with session.get(
+            f"{BASE_URL}/guilds/{GUILD_ID}/channels", headers=headers
+        ) as resp:
+            if resp.status != 200:
+                error = await resp.text()
+                print(f"Error fetching channels: {resp.status} - {error}")
+                return
+            channels = await resp.json()
+
+        print("Fetching roles...")
+        async with session.get(
+            f"{BASE_URL}/guilds/{GUILD_ID}/roles", headers=headers
+        ) as resp:
+            if resp.status != 200:
+                error = await resp.text()
+                print(f"Error fetching roles: {resp.status} - {error}")
+                return
+            roles = await resp.json()
+
+        everyone_role_id = GUILD_ID
+
+        cohort_role_id = None
+        for role in roles:
+            if "cohort" in role["name"].lower():
+                cohort_role_id = role["id"]
+                print(f"Found cohort role: {role['name']} ({role['id']})")
+                break
+
+        if not cohort_role_id:
+            print("Warning: Could not find @cohort role!")
+
+        cohort_channels = [
+            ch
+            for ch in channels
+            if ch["name"].startswith("cohort-team-") and ch["type"] == 0
+        ]
+
+        print(f"\nFound {len(cohort_channels)} cohort-team-* channels\n")
+
+        problematic_channels = []
+
+        for channel in sorted(cohort_channels, key=lambda x: x["name"]):
+            channel_name = channel["name"]
+            channel_id = channel["id"]
+            permission_overwrites = channel.get("permission_overwrites", [])
+
+            everyone_perms = None
+            cohort_perms = None
+
+            for overwrite in permission_overwrites:
+                if overwrite["id"] == everyone_role_id:
+                    everyone_perms = overwrite
+                elif cohort_role_id and overwrite["id"] == cohort_role_id:
+                    cohort_perms = overwrite
+
+            issues = []
+
+            if everyone_perms:
+                deny = int(everyone_perms.get("deny", "0"))
+                allow = int(everyone_perms.get("allow", "0"))
+
+                if (allow & SEND_MESSAGES) or not (deny & SEND_MESSAGES):
+                    issues.append("@everyone can send messages")
+
+                if (allow & SEND_MESSAGES_IN_THREADS) or not (
+                    deny & SEND_MESSAGES_IN_THREADS
+                ):
+                    issues.append("@everyone can send messages in threads")
+            else:
+                issues.append(
+                    "@everyone has no permission overwrite (inheriting server perms)"
+                )
+
+            if cohort_perms and cohort_role_id:
+                deny = int(cohort_perms.get("deny", "0"))
+                allow = int(cohort_perms.get("allow", "0"))
+
+                if (allow & SEND_MESSAGES) or not (deny & SEND_MESSAGES):
+                    issues.append("@cohort can send messages")
+
+                if (allow & SEND_MESSAGES_IN_THREADS) or not (
+                    deny & SEND_MESSAGES_IN_THREADS
+                ):
+                    issues.append("@cohort can send messages in threads")
+            elif cohort_role_id:
+                issues.append(
+                    "@cohort has no permission overwrite (inheriting server perms)"
+                )
+
+            if issues:
+                problematic_channels.append(
+                    {"name": channel_name, "id": channel_id, "issues": issues}
+                )
+                print(f"❌ {channel_name}")
+                for issue in issues:
+                    print(f"   - {issue}")
+            else:
+                print(f"✅ {channel_name}")
+
+        print("\n" + "=" * 60)
+        print(
+            f"\nSummary: {len(problematic_channels)} channels with permission issues\n"
+        )
+
+        if problematic_channels:
+            print("Problematic channels:")
+            for ch in problematic_channels:
+                print(f"\n{ch['name']} (ID: {ch['id']})")
+                for issue in ch["issues"]:
+                    print(f"  • {issue}")
+        else:
+            print("All channels have correct permissions! 🎉")
+
+
+if __name__ == "__main__":
+    asyncio.run(check_permissions())
diff --git a/python/cohort/check_lengths.py b/python/cohort/check_lengths.py
new file mode 100644
index 0000000..9ef5343
--- /dev/null
+++ b/python/cohort/check_lengths.py
@@ -0,0 +1,86 @@
+"""Dry-run check of Discord message lengths before sending the activity report.
+
+Parses the catch_up_report.md table, formats each team's data into a monospace
+Discord table, and reports whether any message would exceed Discord's 2000-char limit.
+Run this before send_activity_report.py to catch length issues early.
+
+Data files (place in data/):
+  - catch_up_report.md  Activity report generated by catch_up_report.py
+
+Env vars:
+  - None
+"""
+
+FIELDS = [
+    ("Discord Username", "Name", 18),
+    ("Discord Messages", "Msgs", 5),
+    ("PRs Opened", "PRs", 4),
+    ("Issues Opened", "Issues", 6),
+    ("Issue Comments", "Issue♟", 7),
+    ("PR Comments", "PR♟", 5),
+    ("PR Reviews", "Reviews", 7),
+    ("Commits", "Commits", 7),
+]
+
+REPORT_PATH = "data/catch_up_report.md"
+
+
+def parse_report(path: str) -> dict[str, list[dict]]:
+    """Parse the markdown table from catch_up_report.md into team → rows."""
+    teams: dict[str, list[dict]] = {}
+    with open(path, encoding="utf-8") as f:
+        lines = f.readlines()
+    header_line = None
+    for i, line in enumerate(lines):
+        if line.startswith("| Discord ID |"):
+            header_line = i
+            break
+    headers = [h.strip() for h in lines[header_line].strip().strip("|").split("|")]
+    for line in lines[header_line + 2 :]:
+        line = line.strip()
+        if not line.startswith("|"):
+            break
+        vals = [v.strip() for v in line.strip().strip("|").split("|")]
+        row = dict(zip(headers, vals))
+        teams.setdefault(row["Team"], []).append(row)
+    return teams
+
+
+def format_table(members: list[dict]) -> str:
+    """Format a team's member list as a monospace table for Discord."""
+    members = sorted(members, key=lambda r: int(r["Discord Messages"]), reverse=True)
+    col_widths = [w for _, _, w in FIELDS]
+    col_headers = [h for _, h, _ in FIELDS]
+    max_name = max(len(m["Discord Username"]) for m in members)
+    col_widths[0] = max(col_widths[0], max_name)
+
+    def pad(val: str, width: int, right_align: bool = False) -> str:
+        return val.rjust(width) if right_align else val.ljust(width)
+
+    header_row = "  ".join(
+        pad(col_headers[i], col_widths[i], right_align=(i > 0))
+        for i in range(len(FIELDS))
+    )
+    separator = "  ".join("-" * w for w in col_widths)
+    rows = []
+    for m in members:
+        vals = [m[key] for key, _, _ in FIELDS]
+        row = "  ".join(
+            pad(vals[i], col_widths[i], right_align=(i > 0)) for i in range(len(FIELDS))
+        )
+        rows.append(row)
+    return "\n".join([header_row, separator] + rows)
+
+
+def main() -> None:
+    """Check Discord message lengths for all teams."""
+    teams = parse_report(REPORT_PATH)
+    for team, members in teams.items():
+        table = format_table(members)
+        msg = f"**{team} — Activity Report (Feb 15–23)**\n```\n{table}\n```"
+        status = "OK" if len(msg) <= 2000 else f"OVER by {len(msg) - 2000}"
+        print(f"{team}: {len(msg)} chars — {status}")
+
+
+if __name__ == "__main__":
+    main()
diff --git a/python/cohort/check_member_status.py b/python/cohort/check_member_status.py
new file mode 100644
index 0000000..967b28d
--- /dev/null
+++ b/python/cohort/check_member_status.py
@@ -0,0 +1,49 @@
+#!/usr/bin/env python3
+"""Check if removed members are still in the Discord server."""
+
+import asyncio
+import os
+
+import aiohttp
+
+DISCORD_BOT_TOKEN = os.environ["DISCORD_BOT_TOKEN"]
+BASE_URL = "https://discord.com/api/v10"
+GUILD_ID = "1354624415861833870"
+
+SAMPLE_MEMBERS = [
+    "899092786802987069",
+    "1318882254365397032",
+    "799293680799711273",
+    "237793557992308736",
+]
+
+
+async def check_member(session: aiohttp.ClientSession, user_id: str) -> bool | None:
+    """Check if a member is in the server."""
+    url = f"{BASE_URL}/guilds/{GUILD_ID}/members/{user_id}"
+    headers = {"Authorization": f"Bot {DISCORD_BOT_TOKEN}"}
+
+    async with session.get(url, headers=headers) as resp:
+        if resp.status == 200:
+            data = await resp.json()
+            roles = data.get("roles", [])
+            print(f"✅ User {user_id} IS in server - has {len(roles)} roles: {roles}")
+            return True
+        if resp.status == 404:
+            print(f"❌ User {user_id} NOT in server (left or was kicked)")
+            return False
+        error = await resp.text()
+        print(f"⚠️  Error checking {user_id}: {resp.status} - {error}")
+        return None
+
+
+async def main() -> None:
+    """Check if sample members are still in the server."""
+    async with aiohttp.ClientSession() as session:
+        for user_id in SAMPLE_MEMBERS:
+            await check_member(session, user_id)
+            await asyncio.sleep(1)
+
+
+if __name__ == "__main__":
+    asyncio.run(main())
diff --git a/python/cohort/discord_activity_checker.py b/python/cohort/discord_activity_checker.py
index c23184f..e6cda78 100755
--- a/python/cohort/discord_activity_checker.py
+++ b/python/cohort/discord_activity_checker.py
@@ -1,6 +1,17 @@
 #!/usr/bin/env python3
-"""Discord Team Activity Checker
-Checks for team members who haven't sent messages in their channels within 36 hours
+"""Check for team members who have not sent a message in their channel within 36 hours.
+
+Scans each team's Discord channel and flags members with no recent activity.
+Optionally sends a direct mention message to inactive members.
+
+Data files (place in data/):
+  - team_assignments.json  Team rosters with leaders and participants per team
+
+Outputs (written to data/):
+  - discord_activity_report.json  Inactive members per team with last-seen timestamps
+
+Env vars:
+  - DISCORD_BOT_TOKEN  Bot token for the Discord API
 """
 
 import asyncio
@@ -8,16 +19,19 @@ import json
 import os
 import sys
 from datetime import datetime, timedelta, timezone
+from pathlib import Path
 
 import aiohttp
 
+DATA_DIR = Path(__file__).parent.parent.parent / "data"
+
 # Configuration
 DISCORD_TOKEN = os.environ["DISCORD_BOT_TOKEN"]
 DISCORD_API_BASE = "https://discord.com/api/v10"
 INACTIVE_THRESHOLD_HOURS = 36
 
 # Load team assignments from file
-with open("team_assignments.json") as f:
+with open(DATA_DIR / "team_assignments.json") as f:
     team_data = json.load(f)
 
 # Build TEAMS dictionary with channel IDs and member lists
@@ -233,7 +247,7 @@ async def main():
         print("\n" + "=" * 80)
 
         # Save results to JSON
-        with open("discord_activity_report.json", "w") as f:
+        with open(DATA_DIR / "discord_activity_report.json", "w") as f:
             json.dump(
                 {
                     "generated_at": datetime.now(timezone.utc).isoformat(),
diff --git a/python/cohort/evaluate_technical_proficiency.py b/python/cohort/evaluate_technical_proficiency.py
index b31d50b..86393ae 100644
--- a/python/cohort/evaluate_technical_proficiency.py
+++ b/python/cohort/evaluate_technical_proficiency.py
@@ -1,8 +1,27 @@
+"""Evaluate the technical proficiency of cohort applicants using their GitHub profiles.
+
+Fetches each applicant's public GitHub repositories and scores their proficiency as
+Beginner, Intermediate, or Advanced based on language variety, repo count, commit
+activity, and presence of certain technologies.
+
+Data files (place in data/):
+  - applicants_to_evaluate.json  List of applicants with GitHub usernames
+
+Outputs (written to data/):
+  - proficiency_evaluations.json  Proficiency scores and tech stacks per applicant
+
+Env vars:
+  - None (uses public GitHub API; may be rate-limited without authentication)
+"""
+
 import json
 import re
 import time
 import urllib.error
 import urllib.request
+from pathlib import Path
+
+DATA_DIR = Path(__file__).parent.parent.parent / "data"
 
 # GitHub API (no auth needed for public repos, but rate limited)
 GITHUB_API = "https://api.github.com"
@@ -234,7 +253,7 @@ def evaluate_applicant(applicant: dict, index: int, total: int) -> dict:
 
 def main():
     # Load applicants
-    with open("applicants_to_evaluate.json") as f:
+    with open(DATA_DIR / "applicants_to_evaluate.json") as f:
         applicants = json.load(f)
 
     print(f"Evaluating {len(applicants)} applicants...\n")
@@ -249,7 +268,7 @@ def main():
             print(f"  Progress: {i + 1}/{len(applicants)} complete")
 
     # Save results
-    with open("proficiency_evaluations.json", "w") as f:
+    with open(DATA_DIR / "proficiency_evaluations.json", "w") as f:
         json.dump(evaluations, f, indent=2)
 
     # Summary
diff --git a/python/cohort/fetch_roster.py b/python/cohort/fetch_roster.py
new file mode 100644
index 0000000..19ffcd2
--- /dev/null
+++ b/python/cohort/fetch_roster.py
@@ -0,0 +1,33 @@
+#!/usr/bin/env python3
+"""Fetch pinned messages from Ivory Orchid channel to find the roster."""
+
+import asyncio
+import json
+import os
+
+import aiohttp
+
+DISCORD_BOT_TOKEN = os.environ["DISCORD_BOT_TOKEN"]
+CHANNEL_ID = "1464316770889240730"
+
+
+async def main() -> None:
+    """Fetch and print pinned messages from the Ivory Orchid channel."""
+    headers = {
+        "Authorization": f"Bot {DISCORD_BOT_TOKEN}",
+        "Content-Type": "application/json",
+    }
+
+    async with (
+        aiohttp.ClientSession() as session,
+        session.get(
+            f"https://discord.com/api/v10/channels/{CHANNEL_ID}/pins",
+            headers=headers,
+        ) as response,
+    ):
+        pins = await response.json()
+        print(json.dumps(pins, indent=2))
+
+
+if __name__ == "__main__":
+    asyncio.run(main())
diff --git a/python/cohort/fix_channel_permissions.py b/python/cohort/fix_channel_permissions.py
new file mode 100644
index 0000000..c257609
--- /dev/null
+++ b/python/cohort/fix_channel_permissions.py
@@ -0,0 +1,129 @@
+#!/usr/bin/env python3
+"""Fix Send Messages / Send Messages in Threads permissions for a Discord channel.
+
+Denies Send Messages and Send Messages in Threads for both @everyone and the
+@cohort role on the target channel. Update CHANNEL_ID and COHORT_ROLE_ID before
+running.
+
+Data files (place in data/):
+  - None
+
+Env vars:
+  - DISCORD_BOT_TOKEN  Bot token for the Discord API
+"""
+
+import asyncio
+import os
+
+import aiohttp
+
+DISCORD_BOT_TOKEN = os.environ["DISCORD_BOT_TOKEN"]
+BASE_URL = "https://discord.com/api/v10"
+GUILD_ID = "739845668582981683"
+CHANNEL_ID = "1467964405646885237"
+
+SEND_MESSAGES = 0x0000000000000800
+SEND_MESSAGES_IN_THREADS = 0x0000004000000000
+
+EVERYONE_ROLE_ID = GUILD_ID
+COHORT_ROLE_ID = "1390925253102010521"
+
+
+async def fix_permissions() -> None:
+    """Fix the channel permissions."""
+    headers = {
+        "Authorization": f"Bot {DISCORD_BOT_TOKEN}",
+        "Content-Type": "application/json",
+    }
+
+    async with aiohttp.ClientSession() as session:
+        print("Fetching current channel permissions...")
+        async with session.get(
+            f"{BASE_URL}/channels/{CHANNEL_ID}", headers=headers
+        ) as resp:
+            if resp.status != 200:
+                error = await resp.text()
+                print(f"Error fetching channel: {resp.status} - {error}")
+                return
+
+            channel = await resp.json()
+            print(f"Channel: {channel['name']}")
+
+        permission_overwrites = channel.get("permission_overwrites", [])
+
+        everyone_overwrite = None
+        cohort_overwrite = None
+
+        for overwrite in permission_overwrites:
+            if overwrite["id"] == EVERYONE_ROLE_ID:
+                everyone_overwrite = overwrite
+            elif overwrite["id"] == COHORT_ROLE_ID:
+                cohort_overwrite = overwrite
+
+        print("\nFixing @everyone permissions...")
+        if everyone_overwrite:
+            current_deny = int(everyone_overwrite.get("deny", "0"))
+            current_allow = int(everyone_overwrite.get("allow", "0"))
+
+            new_deny = current_deny | SEND_MESSAGES | SEND_MESSAGES_IN_THREADS
+            new_allow = current_allow & ~SEND_MESSAGES & ~SEND_MESSAGES_IN_THREADS
+
+            payload = {
+                "type": 0,
+                "deny": str(new_deny),
+                "allow": str(new_allow),
+            }
+        else:
+            payload = {
+                "type": 0,
+                "deny": str(SEND_MESSAGES | SEND_MESSAGES_IN_THREADS),
+                "allow": "0",
+            }
+
+        async with session.put(
+            f"{BASE_URL}/channels/{CHANNEL_ID}/permissions/{EVERYONE_ROLE_ID}",
+            headers=headers,
+            json=payload,
+        ) as resp:
+            if resp.status == 204:
+                print("✅ @everyone permissions fixed!")
+            else:
+                error = await resp.text()
+                print(f"❌ Error fixing @everyone: {resp.status} - {error}")
+
+        print("\nFixing @cohort permissions...")
+        if cohort_overwrite:
+            current_deny = int(cohort_overwrite.get("deny", "0"))
+            current_allow = int(cohort_overwrite.get("allow", "0"))
+
+            new_deny = current_deny | SEND_MESSAGES | SEND_MESSAGES_IN_THREADS
+            new_allow = current_allow & ~SEND_MESSAGES & ~SEND_MESSAGES_IN_THREADS
+
+            payload = {
+                "type": 0,
+                "deny": str(new_deny),
+                "allow": str(new_allow),
+            }
+        else:
+            payload = {
+                "type": 0,
+                "deny": str(SEND_MESSAGES | SEND_MESSAGES_IN_THREADS),
+                "allow": "0",
+            }
+
+        async with session.put(
+            f"{BASE_URL}/channels/{CHANNEL_ID}/permissions/{COHORT_ROLE_ID}",
+            headers=headers,
+            json=payload,
+        ) as resp:
+            if resp.status == 204:
+                print("✅ @cohort permissions fixed!")
+            else:
+                error = await resp.text()
+                print(f"❌ Error fixing @cohort: {resp.status} - {error}")
+
+        print("\n✨ Done! Permissions have been fixed.")
+
+
+if __name__ == "__main__":
+    asyncio.run(fix_permissions())
diff --git a/python/cohort/generate_member_files.py b/python/cohort/generate_member_files.py
index 8ce6749..663eccb 100644
--- a/python/cohort/generate_member_files.py
+++ b/python/cohort/generate_member_files.py
@@ -1,23 +1,46 @@
+"""Generate markdown participant and leader profile files for the cohort.
+
+Reads all evaluation data files and produces two markdown files summarising
+each member's tech stack, availability, proficiency, and leadership assessment.
+
+Data files (place in data/):
+  - discord_verification.json   Discord ID verification results (from verify_discord.py)
+  - proficiency_evaluations.json  Proficiency scores (from evaluate_technical_proficiency.py)
+  - availability_analysis.json  Availability UTC blocks (from analyse_availability.py)
+  - leadership_candidates.json  List of applicants who expressed interest in leading
+  - leadership_evaluations.json  Leadership assessment scores
+
+Outputs (written to data/):
+  - participants.md  Markdown profile for each participant
+  - leaders.md       Markdown profile for each leader candidate
+
+Env vars:
+  - None
+"""
+
 import json
+from pathlib import Path
+
+DATA_DIR = Path(__file__).parent.parent.parent / "data"
 
 BLOCK_EMOJIS = {"mornings": "🌅", "afternoons": "☀️", "evenings": "🌆", "nights": "🌙"}
 
 
 def load_all_data():
     """Load all evaluation data files"""
-    with open("discord_verification.json") as f:
+    with open(DATA_DIR / "discord_verification.json") as f:
         verification = json.load(f)
 
-    with open("proficiency_evaluations.json") as f:
+    with open(DATA_DIR / "proficiency_evaluations.json") as f:
         proficiency = json.load(f)
 
-    with open("availability_analysis.json") as f:
+    with open(DATA_DIR / "availability_analysis.json") as f:
         availability = json.load(f)
 
-    with open("leadership_candidates.json") as f:
+    with open(DATA_DIR / "leadership_candidates.json") as f:
         candidates = json.load(f)
 
-    with open("leadership_evaluations.json") as f:
+    with open(DATA_DIR / "leadership_evaluations.json") as f:
         leadership = json.load(f)
 
     return verification, proficiency, availability, candidates, leadership
@@ -230,14 +253,14 @@ def main():
     participants_md = generate_participants_md(
         non_leader_ids, verified_usernames, prof_by_id, avail_by_id
     )
-    with open("participants.md", "w") as f:
+    with open(DATA_DIR / "participants.md", "w") as f:
         f.write(participants_md)
     print(f"Generated participants.md with {len(non_leader_ids)} participants")
 
     leaders_md = generate_leaders_md(
         leader_ids, verified_usernames, prof_by_id, avail_by_id, lead_by_id
     )
-    with open("leaders.md", "w") as f:
+    with open(DATA_DIR / "leaders.md", "w") as f:
         f.write(leaders_md)
     print(f"Generated leaders.md with {len(leader_ids)} leaders")
 
diff --git a/python/cohort/generate_timeslots.py b/python/cohort/generate_timeslots.py
index 9492877..2b44116 100644
--- a/python/cohort/generate_timeslots.py
+++ b/python/cohort/generate_timeslots.py
@@ -1,5 +1,20 @@
+"""Generate hourly timeslot JSON for use with Crabfit scheduling tool.
+
+Produces a list of ISO-format datetime strings covering every hour across the
+scheduling window. Update the start_date and end_date constants before running.
+
+Outputs (written to data/):
+  - crabfit_timeslots.json  List of hourly timeslot strings
+
+Env vars:
+  - None
+"""
+
 import json
 from datetime import datetime, timedelta
+from pathlib import Path
+
+DATA_DIR = Path(__file__).parent.parent.parent / "data"
 
 # Generate hourly time slots from Feb 1 to March 3, 2026
 # 24 hours a day, America/Los_Angeles timezone
@@ -18,7 +33,7 @@ print(f"First: {times[0]}")
 print(f"Last: {times[-1]}")
 
 # Save to file for use
-with open("/home/naomi/docs/cohort/crabfit_timeslots.json", "w") as f:
+with open(DATA_DIR / "crabfit_timeslots.json", "w") as f:
     json.dump(times, f)
 
 print("Saved to crabfit_timeslots.json")
diff --git a/python/cohort/get_cohort_members.py b/python/cohort/get_cohort_members.py
new file mode 100644
index 0000000..0b588c8
--- /dev/null
+++ b/python/cohort/get_cohort_members.py
@@ -0,0 +1,88 @@
+#!/usr/bin/env python3
+"""Get all members who currently have the Cohort role."""
+
+import asyncio
+import json
+import os
+from pathlib import Path
+
+import aiohttp
+
+DATA_DIR = Path(__file__).parent.parent.parent / "data"
+
+DISCORD_BOT_TOKEN = os.environ["DISCORD_BOT_TOKEN"]
+GUILD_ID = "692816967895220344"
+COHORT_ROLE_ID = "1464314780935258112"
+
+
+async def get_all_members_with_role(
+    session: aiohttp.ClientSession,
+) -> list[dict[str, str]]:
+    """Get all members who have the Cohort role."""
+    members = []
+    headers = {"Authorization": f"Bot {DISCORD_BOT_TOKEN}"}
+
+    after = None
+
+    while True:
+        url = f"https://discord.com/api/v10/guilds/{GUILD_ID}/members"
+        params: dict[str, str | int] = {"limit": 1000}
+        if after:
+            params["after"] = after
+
+        async with session.get(url, headers=headers, params=params) as resp:
+            if resp.status != 200:
+                error_text = await resp.text()
+                raise RuntimeError(
+                    f"Failed to fetch members: {resp.status} - {error_text}"
+                )
+
+            data = await resp.json()
+
+            if not data:
+                break
+
+            for member in data:
+                if COHORT_ROLE_ID in member.get("roles", []):
+                    members.append(
+                        {
+                            "id": member["user"]["id"],
+                            "username": member["user"]["username"],
+                            "display_name": member.get("nick")
+                            or member["user"]["username"],
+                        }
+                    )
+
+            if len(data) < 1000:
+                break
+
+            after = data[-1]["user"]["id"]
+
+    return members
+
+
+async def main() -> None:
+    """Get all cohort members with the Cohort role."""
+    async with aiohttp.ClientSession() as session:
+        print("Fetching all members with Cohort role...")
+
+        cohort_members = await get_all_members_with_role(session)
+
+        print(f"\n✨ Found {len(cohort_members)} members with the Cohort role:\n")
+
+        for i, member in enumerate(cohort_members, 1):
+            print(
+                f"{i}. {member['display_name']} (@{member['username']}) - ID: {member['id']}"  # noqa: E501
+            )
+
+        with open(DATA_DIR / "active_cohort_members.json", "w") as f:
+            json.dump(cohort_members, f, indent=2)
+
+        print("\nSaved to active_cohort_members.json")
+
+        print("\nMember IDs only:")
+        print(json.dumps([m["id"] for m in cohort_members], indent=2))
+
+
+if __name__ == "__main__":
+    asyncio.run(main())
diff --git a/python/cohort/list_all_guild_roles.py b/python/cohort/list_all_guild_roles.py
new file mode 100644
index 0000000..9c67647
--- /dev/null
+++ b/python/cohort/list_all_guild_roles.py
@@ -0,0 +1,61 @@
+#!/usr/bin/env python3
+"""List all roles in the guild to find the correct team role IDs."""
+
+import asyncio
+import os
+
+import aiohttp
+
+DISCORD_BOT_TOKEN = os.environ["DISCORD_BOT_TOKEN"]
+BASE_URL = "https://discord.com/api/v10"
+GUILD_ID = "1354624415861833870"
+
+
+async def list_guild_roles() -> None:
+    """List all roles in the guild, highlighting team-related ones."""
+    url = f"{BASE_URL}/guilds/{GUILD_ID}/roles"
+    headers = {"Authorization": f"Bot {DISCORD_BOT_TOKEN}"}
+
+    async with (
+        aiohttp.ClientSession() as session,
+        session.get(url, headers=headers) as resp,
+    ):
+        if resp.status == 200:
+            roles = await resp.json()
+            print(f"Found {len(roles)} roles in the server:\n")
+
+            team_names = [
+                "Jade Jasmine",
+                "Crimson Dahlia",
+                "Rose Camellia",
+                "Amber Wisteria",
+                "Ivory Orchid",
+                "Teal Iris",
+                "Peach Gardenia",
+                "Violet Carnation",
+                "Azure Lotus",
+                "Coral Sunflower",
+                "Indigo Tulip",
+                "Scarlet Hydrangea",
+                "Mint Narcissus",
+                "Sage Marigold",
+                "Cohort",
+            ]
+
+            for role in sorted(roles, key=lambda r: r["name"].lower()):
+                name = role["name"]
+                is_team = any(team in name for team in team_names)
+                if is_team or "spring" in name.lower() or "2026" in name:
+                    print(f"✅ {role['id']}: {name}")
+
+            print("\n\nAll roles (sorted by name):")
+            for role in sorted(roles, key=lambda r: r["name"].lower()):
+                print(f"{role['id']}: {role['name']}")
+
+        else:
+            error = await resp.text()
+            print(f"Error: {resp.status} - {error}")
+
+
+if __name__ == "__main__":
+    asyncio.run(list_guild_roles())
diff --git a/python/cohort/list_discord_roles.py b/python/cohort/list_discord_roles.py
new file mode 100644
index 0000000..b5ade22
--- /dev/null
+++ b/python/cohort/list_discord_roles.py
@@ -0,0 +1,48 @@
+"""List all Discord roles in the freeCodeCamp server."""
+
+import asyncio
+import os
+
+import aiohttp
+
+DISCORD_BOT_TOKEN = os.environ["DISCORD_BOT_TOKEN"]
+GUILD_ID = "692816967895220344"
+
+API_BASE = "https://discord.com/api/v10"
+
+
+async def get_guild_roles(session: aiohttp.ClientSession) -> list[dict]:
+    """Get all guild roles."""
+    url = f"{API_BASE}/guilds/{GUILD_ID}/roles"
+    headers = {"Authorization": f"Bot {DISCORD_BOT_TOKEN}"}
+
+    async with session.get(url, headers=headers) as resp:
+        if resp.status == 200:
+            return await resp.json()
+        print(f"Failed to get roles: {resp.status}")
+        text = await resp.text()
+        print(text)
+        return []
+
+
+async def main() -> None:
+    """List all roles from freeCodeCamp Discord, highlighting cohort-related ones."""
+    async with aiohttp.ClientSession() as session:
+        print("Fetching all roles from freeCodeCamp Discord...\n")
+        roles = await get_guild_roles(session)
+
+        print(f"Found {len(roles)} roles:\n")
+
+        cohort_roles = [
+            r
+            for r in roles
+            if "2026" in r["name"] or "Cohort" in r["name"] or "Leader" in r["name"]
+        ]
+
+        print("=== Cohort/Leader Roles ===")
+        for role in cohort_roles:
+            print(f"  {role['name']}: {role['id']}")
+
+
+if __name__ == "__main__":
+    asyncio.run(main())
diff --git a/python/cohort/remove_discord_roles.py b/python/cohort/remove_discord_roles.py
new file mode 100644
index 0000000..6d2b15b
--- /dev/null
+++ b/python/cohort/remove_discord_roles.py
@@ -0,0 +1,116 @@
+#!/usr/bin/env python3
+"""Remove the Cohort and team-specific Discord roles from a list of members.
+
+Update INACTIVE_MEMBERS and MEMBER_TO_TEAM before running to target the correct
+members. Removes both the cohort-wide role and the member's team role.
+
+Data files (place in data/):
+  - None (member IDs and team mappings are defined as constants in the script)
+
+Env vars:
+  - DISCORD_BOT_TOKEN  Bot token for the Discord API
+"""
+
+import asyncio
+import os
+
+import aiohttp
+
+DISCORD_BOT_TOKEN = os.environ["DISCORD_BOT_TOKEN"]
+GUILD_ID = "1354624415861833870"
+BASE_URL = "https://discord.com/api/v10"
+
+INACTIVE_MEMBERS = [
+    "1177481351490981889",
+    "899092786802987069",
+    "1318882254365397032",
+    "680429718511943770",
+    "1195902319976521748",
+    "1424001797072359576",
+    "1333378962289590365",
+    "799293680799711273",
+    "1183395404293869662",
+    "1325958873831440566",
+    "717028253633871965",
+    "847789364217905182",
+    "746703502369095700",
+    "192541018908786690",
+    "1017761694514163712",
+]
+
+COHORT_ROLE_ID = "1464314780935258112"
+TEAM_ROLE_IDS = {
+    1: "1464314923780931677",
+    2: "1464315093402784015",
+    3: "1464315098452726106",
+    4: "1464315105264275600",
+    5: "1464315109873684593",
+    6: "1464315114378498152",
+    7: "1464315118904152107",
+    8: "1464315124251754559",
+    9: "1464315128437801177",
+    10: "1464315132896088168",
+    11: "1464315138428633241",
+    12: "1464315142710890520",
+    13: "1464315149203804405",
+    14: "1464315153599299803",
+}
+
+MEMBER_TO_TEAM = {
+    "1177481351490981889": 1,
+    "899092786802987069": 1,
+    "1318882254365397032": 2,
+    "680429718511943770": 2,
+    "1195902319976521748": 3,
+    "1424001797072359576": 4,
+    "1333378962289590365": 4,
+    "799293680799711273": 5,
+    "1183395404293869662": 7,
+    "1325958873831440566": 8,
+    "717028253633871965": 8,
+    "847789364217905182": 10,
+    "746703502369095700": 10,
+    "192541018908786690": 11,
+    "1017761694514163712": 13,
+}
+
+
+async def remove_role(
+    session: aiohttp.ClientSession, user_id: str, role_id: str
+) -> bool:
+    """Remove a role from a user."""
+    url = f"{BASE_URL}/guilds/{GUILD_ID}/members/{user_id}/roles/{role_id}"
+    headers = {"Authorization": f"Bot {DISCORD_BOT_TOKEN}"}
+
+    async with session.delete(url, headers=headers) as resp:
+        if resp.status == 204:
+            return True
+        text = await resp.text()
+        print(f"  Error removing role {role_id} from {user_id}: {resp.status} - {text}")
+        return False
+
+
+async def main() -> None:
+    """Remove roles from all inactive members."""
+    async with aiohttp.ClientSession() as session:
+        print("Removing roles from inactive members...\n")
+
+        for member_id in INACTIVE_MEMBERS:
+            print(f"Processing {member_id}...")
+
+            if await remove_role(session, member_id, COHORT_ROLE_ID):
+                print("  ✓ Removed cohort role")
+
+            if member_id in MEMBER_TO_TEAM:
+                team_id = MEMBER_TO_TEAM[member_id]
+                team_role_id = TEAM_ROLE_IDS[team_id]
+                if await remove_role(session, member_id, team_role_id):
+                    print(f"  ✓ Removed Team {team_id} role")
+
+            await asyncio.sleep(1.5)
+
+        print("\nDone!")
+
+
+if __name__ == "__main__":
+    asyncio.run(main())
diff --git a/python/cohort/remove_member.py b/python/cohort/remove_member.py
new file mode 100644
index 0000000..3eb27e0
--- /dev/null
+++ b/python/cohort/remove_member.py
@@ -0,0 +1,247 @@
+#!/usr/bin/env python3
+"""Remove a member from the Spring 2026 Cohort.
+
+This script:
+1. Removes from team_assignments.json (so activity checker stops tracking them)
+2. Removes from discord_to_github.json
+3. Removes from GitHub teams
+4. Removes Discord roles
+5. Sends a message to the team channel announcing the removal
+6. Outputs notes to add to COHORT_NOTES.md
+
+Usage:
+    python remove_member.py <discord_id>
+"""
+
+import asyncio
+import json
+import os
+import sys
+from datetime import datetime, timezone
+from pathlib import Path
+
+import aiohttp
+
+DATA_DIR = Path(__file__).parent.parent.parent / "data"
+
+DISCORD_BOT_TOKEN = os.environ["DISCORD_BOT_TOKEN"]
+DISCORD_API_BASE = "https://discord.com/api/v10"
+DISCORD_GUILD_ID = "692816967895220344"
+COHORT_ROLE_ID = "1464316447591985194"
+
+TEXT_CHANNEL_IDS = {
+    "Jade Jasmine": "1464316501573107886",
+    "Crimson Dahlia": "1464316744909852682",
+    "Rose Camellia": "1464316751268286611",
+    "Amber Wisteria": "1464316761410113641",
+    "Ivory Orchid": "1464316770889240730",
+    "Teal Iris": "1464316776459407448",
+    "Peach Gardenia": "1464316785040953543",
+    "Violet Carnation": "1464316805261824032",
+    "Azure Lotus": "1464316814455472139",
+    "Coral Sunflower": "1464316819711066263",
+    "Indigo Tulip": "1464316826384072925",
+    "Scarlet Hydrangea": "1464316839306985506",
+    "Mint Narcissus": "1464316844251807952",
+    "Sage Marigold": "1464316850669093040",
+}
+
+
+class MemberRemover:
+    """Handles the complete removal of a cohort member."""
+
+    def __init__(self, discord_id: str) -> None:
+        self.discord_id = discord_id
+        self.headers = {
+            "Authorization": f"Bot {DISCORD_BOT_TOKEN}",
+            "Content-Type": "application/json",
+        }
+        self.session: aiohttp.ClientSession | None = None
+        self.github_username: str | None = None
+        self.team_name: str | None = None
+        self.role: str | None = None
+        self.team_role_id: str | None = None
+
+    async def __aenter__(self) -> "MemberRemover":
+        self.session = aiohttp.ClientSession()
+        return self
+
+    async def __aexit__(
+        self, exc_type: object, exc_val: object, exc_tb: object
+    ) -> None:
+        if self.session:
+            await self.session.close()
+
+    def find_member_info(self) -> bool:
+        """Find which team the member is on and their role."""
+        with open(DATA_DIR / "team_assignments.json") as f:
+            teams = json.load(f)
+
+        for team in teams:
+            if self.discord_id in team["leaders"]:
+                self.team_name = team["name"]
+                self.role = "leader"
+                return True
+            if self.discord_id in team["participants"]:
+                self.team_name = team["name"]
+                self.role = "participant"
+                return True
+
+        return False
+
+    def remove_from_team_assignments(self) -> None:
+        """Remove member from team_assignments.json."""
+        with open(DATA_DIR / "team_assignments.json") as f:
+            teams = json.load(f)
+
+        for team in teams:
+            if self.discord_id in team["leaders"]:
+                team["leaders"].remove(self.discord_id)
+                print(
+                    f"✅ Removed from {team['name']} leaders in team_assignments.json"
+                )
+            elif self.discord_id in team["participants"]:
+                team["participants"].remove(self.discord_id)
+                print(
+                    f"✅ Removed from {team['name']} participants in team_assignments.json"
+                )
+
+        with open(DATA_DIR / "team_assignments.json", "w") as f:
+            json.dump(teams, f, indent=2)
+
+    def remove_from_discord_to_github(self) -> None:
+        """Remove member from discord_to_github.json."""
+        with open(DATA_DIR / "discord_to_github.json") as f:
+            mappings = json.load(f)
+
+        if self.discord_id in mappings:
+            self.github_username = mappings[self.discord_id]
+            del mappings[self.discord_id]
+
+            with open(DATA_DIR / "discord_to_github.json", "w") as f:
+                json.dump(mappings, f, indent=2)
+
+            print(f"✅ Removed {self.github_username} from discord_to_github.json")
+        else:
+            print("⚠️  No GitHub username found in discord_to_github.json")
+
+    async def remove_from_github_teams(self) -> None:
+        """Print instructions to remove member from GitHub organization teams."""
+        if not self.github_username:
+            print("⚠️  Skipping GitHub removal (no username)")
+            return
+
+        print(f"ℹ️  Please manually remove {self.github_username} from GitHub teams:")
+        print(f"   - Team: {self.team_name}")
+        if self.role == "leader":
+            print(f"   - Team: {self.team_name} Leaders")
+
+    async def remove_discord_roles(self) -> None:
+        """Remove Discord roles from the member."""
+        with open(DATA_DIR / "team_message_ids.json") as f:
+            team_message_data = json.load(f)
+
+        if self.team_name not in team_message_data:
+            print(f"⚠️  Could not find role ID for team {self.team_name}")
+            return
+
+        self.team_role_id = team_message_data[self.team_name]["role_id"]
+
+        url = (
+            f"{DISCORD_API_BASE}/guilds/{DISCORD_GUILD_ID}"
+            f"/members/{self.discord_id}/roles/{self.team_role_id}"
+        )
+        async with self.session.delete(url, headers=self.headers) as response:
+            if response.status == 204:
+                print(f"✅ Removed {self.team_name} Discord role")
+            else:
+                print(f"❌ Failed to remove team role: {response.status}")
+
+        url = (
+            f"{DISCORD_API_BASE}/guilds/{DISCORD_GUILD_ID}"
+            f"/members/{self.discord_id}/roles/{COHORT_ROLE_ID}"
+        )
+        async with self.session.delete(url, headers=self.headers) as response:
+            if response.status == 204:
+                print("✅ Removed Spring 2026 Cohort Discord role")
+            else:
+                print(f"❌ Failed to remove cohort role: {response.status}")
+
+    async def send_team_message(self) -> None:
+        """Send a message to the team channel announcing the removal."""
+        channel_id = TEXT_CHANNEL_IDS[self.team_name]
+
+        message = (
+            f"<@{self.discord_id}> has been removed from the cohort for inactivity."
+        )
+
+        url = f"{DISCORD_API_BASE}/channels/{channel_id}/messages"
+        data = {"content": message}
+
+        async with self.session.post(url, headers=self.headers, json=data) as response:
+            if response.status == 200:
+                print(f"✅ Sent removal message to {self.team_name} channel")
+            else:
+                print(f"❌ Failed to send message: {response.status}")
+
+    def generate_cohort_notes(self) -> str:
+        """Generate text to add to COHORT_NOTES.md."""
+        today = datetime.now(timezone.utc).strftime("%Y-%m-%d")
+
+        notes = f"\n## {today} - Member Removal\n\n"
+        notes += "| Discord ID | GitHub Username | Team | Role |\n"
+        notes += "|------------|-----------------|------|------|\n"
+        notes += (
+            f"| {self.discord_id} | {self.github_username or '-'} "
+            f"| {self.team_name} | {self.role.capitalize()} |\n"
+        )
+
+        return notes
+
+
+async def main() -> None:
+    """Remove a member from the cohort."""
+    if len(sys.argv) != 2:
+        print("Usage: python remove_member.py <discord_id>")
+        sys.exit(1)
+
+    discord_id = sys.argv[1]
+
+    async with MemberRemover(discord_id) as remover:
+        if not remover.find_member_info():
+            print(f"❌ Discord ID {discord_id} not found in any team")
+            sys.exit(1)
+
+        print("\n📋 Found member:")
+        print(f"   Discord ID: {discord_id}")
+        print(f"   Team: {remover.team_name}")
+        print(f"   Role: {remover.role}")
+        print()
+
+        confirm = input("Proceed with removal? (yes/no): ")
+        if confirm.lower() != "yes":
+            print("❌ Removal cancelled")
+            sys.exit(0)
+
+        print("\n🚀 Starting removal process...\n")
+
+        remover.remove_from_team_assignments()
+        remover.remove_from_discord_to_github()
+
+        await remover.remove_from_github_teams()
+
+        await remover.remove_discord_roles()
+
+        await remover.send_team_message()
+
+        print("\n" + "=" * 80)
+        print("📝 Add this to COHORT_NOTES.md:")
+        print("=" * 80)
+        print(remover.generate_cohort_notes())
+        print("=" * 80)
+
+        print("\n✅ Member removal complete!")
+
+
+if __name__ == "__main__":
+    asyncio.run(main())
diff --git a/python/cohort/remove_resigned_members.py b/python/cohort/remove_resigned_members.py
new file mode 100644
index 0000000..5f79cf1
--- /dev/null
+++ b/python/cohort/remove_resigned_members.py
@@ -0,0 +1,63 @@
+#!/usr/bin/env python3
+"""Remove resigned members from team_assignments.json.
+
+Update RESIGNED_IDS with the Discord IDs of members who have resigned
+before running this script.
+"""
+
+import json
+from pathlib import Path
+
+DATA_DIR = Path(__file__).parent.parent.parent / "data"
+
+# Discord IDs of members who have resigned - update before running
+RESIGNED_IDS: list[str] = []
+
+
+def main() -> None:
+    """Remove resigned members from team assignments."""
+    with open(DATA_DIR / "team_assignments.json") as f:
+        teams = json.load(f)
+
+    changes_made = []
+
+    for team in teams:
+        team_name = team["name"]
+
+        original_leaders = len(team["leaders"])
+        team["leaders"] = [lid for lid in team["leaders"] if lid not in RESIGNED_IDS]
+        if len(team["leaders"]) < original_leaders:
+            removed = original_leaders - len(team["leaders"])
+            changes_made.append(f"Removed {removed} leader(s) from {team_name}")
+
+        original_participants = len(team["participants"])
+        team["participants"] = [
+            pid for pid in team["participants"] if pid not in RESIGNED_IDS
+        ]
+        if len(team["participants"]) < original_participants:
+            removed = original_participants - len(team["participants"])
+            changes_made.append(f"Removed {removed} participant(s) from {team_name}")
+            print(f"⚠️  {team_name}: Proficiency distribution may need updating")
+
+    with open(DATA_DIR / "team_assignments.json", "w") as f:
+        json.dump(teams, f, indent=2)
+
+    if changes_made:
+        print("✅ Successfully removed resigned members from team_assignments.json")
+        print("\nChanges made:")
+        for change in changes_made:
+            print(f"  - {change}")
+    else:
+        print("No changes needed - resigned members were not found in team assignments")
+
+    print("\nUpdated team sizes:")
+    for team in teams:
+        total_members = len(team["leaders"]) + len(team["participants"])
+        print(
+            f"  {team['name']}: {total_members} members "
+            f"({len(team['leaders'])} leaders, {len(team['participants'])} participants)"  # noqa: E501
+        )
+
+
+if __name__ == "__main__":
+    main()
diff --git a/python/cohort/send_activity_report.py b/python/cohort/send_activity_report.py
new file mode 100644
index 0000000..4832e19
--- /dev/null
+++ b/python/cohort/send_activity_report.py
@@ -0,0 +1,178 @@
+"""Send formatted activity report tables to each team's Discord channel.
+
+Parses catch_up_report.md and posts a monospace table of each member's Discord
+and GitHub activity stats to their respective team channel.
+
+Data files (place in data/):
+  - catch_up_report.md  Activity report generated by catch_up_report.py
+
+Env vars:
+  - DISCORD_BOT_TOKEN  Bot token for the Discord API
+"""
+
+import asyncio
+import os
+
+import aiohttp
+
+DISCORD_BOT_TOKEN = os.environ["DISCORD_BOT_TOKEN"]
+GUILD_ID = "692816967895220344"
+API_BASE = "https://discord.com/api/v10"
+
+CHANNEL_IDS = {
+    "Crimson Dahlia": "1464316744909852682",
+    "Rose Camellia": "1464316751268286611",
+    "Amber Wisteria": "1464316761410113641",
+    "Ivory Orchid": "1464316770889240730",
+    "Teal Iris": "1464316776459407448",
+    "Peach Gardenia": "1464316785040953543",
+    "Violet Carnation": "1464316805261824032",
+    "Azure Lotus": "1464316814455472139",
+    "Coral Sunflower": "1464316819711066263",
+    "Indigo Tulip": "1464316826384072925",
+    "Scarlet Hydrangea": "1464316839306985506",
+    "Mint Narcissus": "1464316844251807952",
+    "Sage Marigold": "1464316850669093040",
+}
+
+REPORT_PATH = os.path.join(
+    os.path.dirname(__file__), "..", "..", "data", "catch_up_report.md"
+)
+
+FIELDS = [
+    ("Discord Username", "Name", 18),
+    ("Discord Messages", "Msgs", 5),
+    ("PRs Opened", "PRs", 4),
+    ("Issues Opened", "Issues", 6),
+    ("Issue Comments", "Issue♟", 7),
+    ("PR Comments", "PR♟", 5),
+    ("PR Reviews", "Reviews", 7),
+    ("Commits", "Commits", 7),
+]
+
+
+def parse_report(path: str) -> dict[str, list[dict]]:
+    """Parse the markdown table from catch_up_report.md into team → rows."""
+    teams: dict[str, list[dict]] = {}
+    with open(path, encoding="utf-8") as f:
+        lines = f.readlines()
+
+    header_line = None
+    for i, line in enumerate(lines):
+        if line.startswith("| Discord ID |"):
+            header_line = i
+            break
+
+    if header_line is None:
+        raise ValueError("Could not find table header in report")
+
+    headers = [h.strip() for h in lines[header_line].strip().strip("|").split("|")]
+    for line in lines[header_line + 2 :]:
+        line = line.strip()
+        if not line.startswith("|"):
+            break
+        row_values = [v.strip() for v in line.strip().strip("|").split("|")]
+        row = dict(zip(headers, row_values))
+        team = row["Team"]
+        teams.setdefault(team, []).append(row)
+
+    return teams
+
+
+def format_table(members: list[dict]) -> str:
+    """Format a team's member list as a monospace table for Discord."""
+    members = sorted(members, key=lambda r: int(r["Discord Messages"]), reverse=True)
+
+    col_widths = [width for _, _, width in FIELDS]
+    col_headers = [header for _, header, _ in FIELDS]
+
+    name_col_index = 0
+    max_name = max(len(m["Discord Username"]) for m in members)
+    col_widths[name_col_index] = max(col_widths[name_col_index], max_name)
+
+    def pad(val: str, width: int, right_align: bool = False) -> str:
+        return val.rjust(width) if right_align else val.ljust(width)
+
+    header_row = "  ".join(
+        pad(col_headers[i], col_widths[i], right_align=(i > 0))
+        for i in range(len(FIELDS))
+    )
+    separator = "  ".join("-" * w for w in col_widths)
+
+    rows = []
+    for m in members:
+        source_keys = [key for key, _, _ in FIELDS]
+        values = [m[key] for key in source_keys]
+        row = "  ".join(
+            pad(values[i], col_widths[i], right_align=(i > 0))
+            for i in range(len(FIELDS))
+        )
+        rows.append(row)
+
+    return "\n".join([header_row, separator] + rows)
+
+
+async def send_message(
+    session: aiohttp.ClientSession, channel_id: str, content: str
+) -> None:
+    """Send a message to a Discord channel."""
+    headers = {
+        "Authorization": f"Bot {DISCORD_BOT_TOKEN}",
+        "Content-Type": "application/json",
+    }
+    url = f"{API_BASE}/channels/{channel_id}/messages"
+    while True:
+        async with session.post(
+            url, json={"content": content}, headers=headers
+        ) as resp:
+            if resp.status == 429:
+                data = await resp.json()
+                retry_after = data.get("retry_after", 5)
+                print(f"    Rate limited — sleeping {retry_after}s...")
+                await asyncio.sleep(retry_after)
+                continue
+            if resp.status not in (200, 201):
+                text = await resp.text()
+                print(f"    ERROR {resp.status}: {text}")
+            return
+
+
+async def main() -> None:
+    """Send activity tables to all team channels."""
+    teams = parse_report(REPORT_PATH)
+    team_names = list(CHANNEL_IDS.keys())
+    print(f"Sending activity tables to {len(team_names)} channels...\n")
+
+    async with aiohttp.ClientSession() as session:
+        for i, team_name in enumerate(team_names, 1):
+            channel_id = CHANNEL_IDS[team_name]
+            members = teams.get(team_name, [])
+            if not members:
+                print(f"  [{i}/{len(team_names)}] {team_name} — no data, skipping")
+                continue
+
+            table = format_table(members)
+            message = (
+                f"**{team_name} — Activity Report (Feb 15–23)**\n```\n{table}\n```"
+            )
+
+            if len(message) > 2000:
+                print(
+                    f"  [{i}/{len(team_names)}] {team_name} — WARNING: "
+                    f"message is {len(message)} chars (over 2000!)"
+                )
+
+            print(
+                f"  [{i}/{len(team_names)}] Sending to {team_name}... ",
+                end="",
+                flush=True,
+            )
+            await send_message(session, channel_id, message)
+            print("sent!")
+            await asyncio.sleep(1)
+
+    print("\nAll done! 🌸")
+
+
+if __name__ == "__main__":
+    asyncio.run(main())
diff --git a/python/cohort/send_checkin.py b/python/cohort/send_checkin.py
new file mode 100644
index 0000000..9515381
--- /dev/null
+++ b/python/cohort/send_checkin.py
@@ -0,0 +1,97 @@
+"""Send biweekly check-in messages to all team Discord channels.
+
+Posts a check-in prompt to each team channel and automatically creates a thread
+for responses. Members who do not respond by the deadline may be removed for
+inactivity.
+
+Data files (place in data/):
+  - team_message_ids.json  Channel IDs per team (generated by send_team_messages.py)
+
+Env vars:
+  - DISCORD_BOT_TOKEN  Bot token for the Discord API
+"""
+
+import asyncio
+import json
+import os
+from pathlib import Path
+
+import aiohttp
+
+DATA_DIR = Path(__file__).parent.parent.parent / "data"
+
+DISCORD_BOT_TOKEN = os.environ["DISCORD_BOT_TOKEN"]
+DISCORD_API = "https://discord.com/api/v10"
+GUILD_ID = "692816967895220344"
+
+CHECK_IN_MESSAGE = """@everyone it is time for Naomi to do a check in. I need **each and every one of you** to respond to this message **in the thread** by Monday, or you **will be removed** for inactivity.
+
+1. What have you achieved over the last two weeks?
+2. What is your focus for the next two weeks?
+3. How much time can you **reliably** commit to your team over the next two weeks?
+4. Are you facing any **blockers** or **challenges** that are preventing you from contributing?
+5. Do you need **help** from your team leaders or from Naomi to get unstuck?
+"""
+
+
+async def send_checkin_to_teams() -> None:
+    """Send check-in message to all team channels (except Jade Jasmine)."""
+    with open(DATA_DIR / "team_message_ids.json") as f:
+        team_data = json.load(f)
+
+    headers = {
+        "Authorization": f"Bot {DISCORD_BOT_TOKEN}",
+        "Content-Type": "application/json",
+    }
+
+    async with aiohttp.ClientSession() as session:
+        for team_name, data in team_data.items():
+            if team_name == "jade-jasmine":
+                print(f"⏭️  Skipping {team_name} (dissolved)")
+                continue
+
+            channel_id = data["channel_id"]
+            print(f"📤 Sending check-in to {team_name} (channel {channel_id})...")
+
+            async with session.post(
+                f"{DISCORD_API}/channels/{channel_id}/messages",
+                headers=headers,
+                json={"content": CHECK_IN_MESSAGE},
+            ) as resp:
+                if resp.status == 200:
+                    message_data = await resp.json()
+                    message_id = message_data["id"]
+                    print(f"   ✅ Message sent! Message ID: {message_id}")
+
+                    thread_name = (
+                        f"Check-in Responses - {team_name.replace('-', ' ').title()}"
+                    )
+                    async with session.post(
+                        f"{DISCORD_API}/channels/{channel_id}/messages/{message_id}/threads",
+                        headers=headers,
+                        json={
+                            "name": thread_name,
+                            "auto_archive_duration": 10080,
+                        },
+                    ) as thread_resp:
+                        if thread_resp.status == 201:
+                            thread_data = await thread_resp.json()
+                            thread_id = thread_data["id"]
+                            print(f"   🧵 Thread created! Thread ID: {thread_id}")
+                        else:
+                            error_text = await thread_resp.text()
+                            print(
+                                f"   ❌ Failed to create thread: "
+                                f"{thread_resp.status} - {error_text}"
+                            )
+                else:
+                    error_text = await resp.text()
+                    print(f"   ❌ Failed to send message: {resp.status} - {error_text}")
+
+            await asyncio.sleep(1)
+
+    print("\n✅ Check-in messages sent to all teams!")
+
+
+if __name__ == "__main__":
+    asyncio.run(send_checkin_to_teams())
diff --git a/python/cohort/send_team_checkin.py b/python/cohort/send_team_checkin.py
new file mode 100644
index 0000000..0fc6724
--- /dev/null
+++ b/python/cohort/send_team_checkin.py
@@ -0,0 +1,104 @@
+#!/usr/bin/env python3
+"""Send a capacity check-in message to each team channel.
+
+Posts a message asking whether the team feels able to complete their project
+given their current member count, and invites them to request support if needed.
+
+Data files (place in data/):
+  - team_message_ids.json   Channel and role IDs per team (from send_team_messages.py)
+  - team_assignments.json   Team rosters used to report current member counts
+
+Env vars:
+  - DISCORD_BOT_TOKEN  Bot token for the Discord API
+"""
+
+import asyncio
+import json
+import os
+from pathlib import Path
+
+import aiohttp
+
+DATA_DIR = Path(__file__).parent.parent.parent / "data"
+
+DISCORD_BOT_TOKEN = os.environ["DISCORD_BOT_TOKEN"]
+NAOMI_ID = "465650873650118659"
+
+
+def build_checkin_message(team_name: str, team: dict, role_id: str) -> str:
+    """Build the team check-in message."""
+    total_members = len(team["leaders"]) + len(team["participants"])
+    num_leaders = len(team["leaders"])
+    num_participants = len(team["participants"])
+
+    leader_text = "leader" if num_leaders == 1 else "leaders"
+    participant_text = "participant" if num_participants == 1 else "participants"
+
+    return f"""## Team Check-In
+
+Your team currently has **{total_members} members** ({num_leaders} {leader_text} + {num_participants} {participant_text}).
+
+Given the recent changes to team size, we want to make sure you feel confident moving forward with your project. Please discuss as a team and let us know:
+
+**Do you feel you can still complete your project with your current team size?**
+
+If you have concerns about capacity, need additional support, or would like to discuss options (such as combining with another team or adjusting project scope), please ping <@{NAOMI_ID}> and we'll work together to find a solution.
+
+Your success is the priority here - we want to make sure every team has what they need to build something amazing! 💜
+
+-# <@&{role_id}>"""
+
+
+async def send_message(
+    session: aiohttp.ClientSession, channel_id: str, content: str
+) -> dict | None:
+    """Send a message to a Discord channel."""
+    url = f"https://discord.com/api/v10/channels/{channel_id}/messages"
+    headers = {
+        "Authorization": f"Bot {DISCORD_BOT_TOKEN}",
+        "Content-Type": "application/json",
+    }
+    payload = {"content": content}
+
+    async with session.post(url, headers=headers, json=payload) as resp:
+        if resp.status in [200, 201]:
+            return await resp.json()
+        error_text = await resp.text()
+        print(
+            f"❌ Failed to send message to channel {channel_id}: {resp.status} - {error_text}"  # noqa: E501
+        )
+        return None
+
+
+async def main() -> None:
+    """Send check-in messages to all teams."""
+    with open(DATA_DIR / "team_message_ids.json") as f:
+        team_data = json.load(f)
+
+    with open(DATA_DIR / "team_assignments.json") as f:
+        teams = json.load(f)
+
+    async with aiohttp.ClientSession() as session:
+        print("📢 Sending team check-in messages...\n")
+
+        for team in teams:
+            team_name = team["name"]
+            channel_id = team_data[team_name]["channel_id"]
+            role_id = team_data[team_name]["role_id"]
+
+            print(f"Processing {team_name}...")
+
+            checkin_msg = build_checkin_message(team_name, team, role_id)
+            result = await send_message(session, channel_id, checkin_msg)
+
+            if result:
+                total = len(team["leaders"]) + len(team["participants"])
+                print(f"  ✅ Sent check-in ({total} members)")
+
+            await asyncio.sleep(2)
+
+        print("\n✨ Done sending all team check-in messages!")
+
+
+if __name__ == "__main__":
+    asyncio.run(main())
diff --git a/python/cohort/send_team_messages.py b/python/cohort/send_team_messages.py
index 0ee6bb0..c9b69bb 100644
--- a/python/cohort/send_team_messages.py
+++ b/python/cohort/send_team_messages.py
@@ -1,10 +1,29 @@
+"""Send initial welcome and roster messages to all team Discord channels.
+
+Creates a pinned roster message in each team channel and stores the resulting
+message ID, channel ID, and role ID in team_message_ids.json for use by
+other scripts (send_checkin.py, update_roster_messages.py, etc.).
+
+Data files (place in data/):
+  - team_assignments.json       Team rosters with leaders and participants per team
+  - applicants_to_evaluate.json  Applicant data including Discord channel/role IDs
+
+Outputs (written to data/):
+  - team_message_ids.json  Channel ID, message ID, and role ID per team
+
+Env vars:
+  - DISCORD_BOT_TOKEN  Bot token for the Discord API
+"""
+
 import json
 import os
 import time
+from pathlib import Path
 
 import requests
 
-# Amari's bot token
+DATA_DIR = Path(__file__).parent.parent.parent / "data"
+
 TOKEN = os.environ["DISCORD_BOT_TOKEN"]
 GUILD_ID = "692816967895220344"
 
@@ -72,12 +91,12 @@ TEAMS = {
 }
 
 # Load team assignments and convert to dict by team name
-with open("team_assignments.json") as f:
+with open(DATA_DIR / "team_assignments.json") as f:
     team_list = json.load(f)
     team_data = {team["name"]: team for team in team_list}
 
 # Load applicants to get project_url by discord_id
-with open("applicants_to_evaluate.json") as f:
+with open(DATA_DIR / "applicants_to_evaluate.json") as f:
     applicants = json.load(f)
     applicant_lookup = {str(a["discord_id"]): a for a in applicants}
 
diff --git a/python/cohort/update_roster_messages.py b/python/cohort/update_roster_messages.py
new file mode 100644
index 0000000..378ee41
--- /dev/null
+++ b/python/cohort/update_roster_messages.py
@@ -0,0 +1,103 @@
+"""Update team roster messages in Discord from team_assignments.json."""
+
+import asyncio
+import json
+import os
+from pathlib import Path
+
+import aiohttp
+
+DATA_DIR = Path(__file__).parent.parent.parent / "data"
+
+DISCORD_BOT_TOKEN = os.environ["DISCORD_BOT_TOKEN"]
+GUILD_ID = "692816967895220344"
+
+API_BASE = "https://discord.com/api/v10"
+
+
+async def edit_message(
+    session: aiohttp.ClientSession,
+    channel_id: str,
+    message_id: str,
+    content: str,
+) -> bool:
+    """Edit a Discord message."""
+    url = f"{API_BASE}/channels/{channel_id}/messages/{message_id}"
+    headers = {
+        "Authorization": f"Bot {DISCORD_BOT_TOKEN}",
+        "Content-Type": "application/json",
+    }
+    payload = {"content": content}
+
+    async with session.patch(url, headers=headers, json=payload) as resp:
+        if resp.status == 200:
+            return True
+        text = await resp.text()
+        print(f"    ❌ Failed to edit message: {resp.status} - {text}")
+        return False
+
+
+def generate_roster(team: dict, discord_to_github: dict) -> str:
+    """Generate roster message for a team."""
+    team_name = team["name"]
+
+    leader_lines = [
+        f"- <@{discord_id}> ({discord_to_github.get(discord_id, 'Unknown')})"
+        for discord_id in team["leaders"]
+    ]
+
+    participant_lines = [
+        f"- <@{discord_id}> ({discord_to_github.get(discord_id, 'Unknown')})"
+        for discord_id in team["participants"]
+    ]
+
+    leaders_text = "\n".join(leader_lines) if leader_lines else "None"
+    participants_text = "\n".join(participant_lines) if participant_lines else "None"
+
+    return f"""# Team {team_name}
+
+**Leaders:**
+{leaders_text}
+
+**Participants:**
+{participants_text}"""
+
+
+async def main() -> None:
+    """Update roster messages for all teams."""
+    with open(DATA_DIR / "team_message_ids.json") as f:
+        team_data = json.load(f)
+
+    with open(DATA_DIR / "team_assignments.json") as f:
+        teams = json.load(f)
+
+    with open(DATA_DIR / "discord_to_github.json") as f:
+        discord_to_github = json.load(f)
+
+    async with aiohttp.ClientSession() as session:
+        for team in teams:
+            team_name = team["name"]
+            print(f"Updating roster for {team_name}...")
+
+            if team_name not in team_data:
+                print("  ⚠️  Team not found in team_message_ids.json")
+                continue
+
+            channel_id = team_data[team_name]["channel_id"]
+            message_id = team_data[team_name]["message_id"]
+
+            roster_content = generate_roster(team, discord_to_github)
+
+            success = await edit_message(
+                session, channel_id, message_id, roster_content
+            )
+            if success:
+                print(f"  ✅ Updated (Message ID: {message_id})")
+
+            await asyncio.sleep(0.5)
+
+        print("\n✅ All roster messages updated!")
+
+
+if __name__ == "__main__":
+    asyncio.run(main())
diff --git a/python/cohort/verify_discord.py b/python/cohort/verify_discord.py
index e9894c8..d4bd09a 100644
--- a/python/cohort/verify_discord.py
+++ b/python/cohort/verify_discord.py
@@ -1,8 +1,26 @@
+"""Verify Discord user IDs from a markdown table of applicant data.
+
+Reads a markdown table containing Discord IDs and checks each one against the
+Discord API to confirm the user exists. Handles rate limits automatically.
+
+Data files (place in data/):
+  - table.md  Markdown table of applicants including a Discord ID column
+
+Outputs (written to data/):
+  - discord_verification.json  Verification result (valid/invalid) per Discord ID
+
+Env vars:
+  - DISCORD_BOT_TOKEN  Bot token for the Discord API
+"""
+
 import json
 import os
 import time
 import urllib.error
 import urllib.request
+from pathlib import Path
+
+DATA_DIR = Path(__file__).parent.parent.parent / "data"
 
 # Configuration
 BOT_TOKEN = os.environ["DISCORD_BOT_TOKEN"]
@@ -10,7 +28,7 @@ GUILD_ID = "692816967895220344"
 BASE_URL = "https://discord.com/api/v10"
 
 # Read Discord IDs from table.md
-with open("table.md") as f:
+with open(DATA_DIR / "table.md") as f:
     content = f.read()
 
 lines = content.strip().split("\n")
@@ -104,7 +122,7 @@ print(f"Missing: {len(missing)}")
 print(f"Errors: {len(errors)}")
 
 # Save results
-with open("discord_verification.json", "w") as f:
+with open(DATA_DIR / "discord_verification.json", "w") as f:
     json.dump({"verified": verified, "missing": missing, "errors": errors}, f, indent=2)
 
 print("\nResults saved to discord_verification.json")
diff --git a/python/pyproject.toml b/python/pyproject.toml
index 9456b09..303e0d2 100644
--- a/python/pyproject.toml
+++ b/python/pyproject.toml
@@ -79,6 +79,8 @@ ignore = [
     "DTZ001",
     # Ambiguous variable names - context makes it clear
     "E741",
+    # Long lines in string literals (Discord messages, URLs)
+    "E501",
 ]
 
 [tool.ruff.lint.pydocstyle]
diff --git a/python/requirements.txt b/python/requirements.txt
index a366b7b..eb03cc8 100644
--- a/python/requirements.txt
+++ b/python/requirements.txt
@@ -3,4 +3,5 @@ ruff==0.14.14
 
 # Runtime dependencies
 requests==2.32.3
-aiohttp==3.11.12
\ No newline at end of file
+aiohttp==3.11.12
+pandas==3.0.1
\ No newline at end of file
diff --git a/run.sh b/run.sh
index 24b6948..7f48294 100755
--- a/run.sh
+++ b/run.sh
@@ -96,7 +96,7 @@ select_option() {
 
 # Step 1: Select Language
 echo ""
-languages=("TypeScript" "Python")
+languages=("TypeScript" "Python" "Bash")
 select_option "Select a language:" "${languages[@]}"
 lang_index=$?
 language="${languages[$lang_index]}"
@@ -109,15 +109,16 @@ if [ "$language" == "TypeScript" ]; then
     runner="pnpm tsx"
     # Get subdirectories as categories (excluding utils and interfaces)
     mapfile -t categories < <(find "$script_dir" -mindepth 1 -maxdepth 1 -type d ! -name 'utils' ! -name 'interfaces' -exec basename {} \; | sort)
-else
+elif [ "$language" == "Python" ]; then
     script_dir="python"
     runner="uv run python"
     # Get subdirectories as categories (excluding __pycache__ and .venv)
     mapfile -t categories < <(find "$script_dir" -mindepth 1 -maxdepth 1 -type d ! -name '__pycache__' ! -name '.venv' ! -name '*.egg-info' -exec basename {} \; | sort)
-    # Add "Root Scripts" option for Python files in root
-    if ls "$script_dir"/*.py &>/dev/null 2>&1; then
-        categories=("Root Scripts" "${categories[@]}")
-    fi
+else
+    script_dir="bash"
+    runner="bash"
+    # Get subdirectories as categories
+    mapfile -t categories < <(find "$script_dir" -mindepth 1 -maxdepth 1 -type d -exec basename {} \; | sort)
 fi
 
 if [ ${#categories[@]} -eq 0 ]; then
@@ -132,12 +133,12 @@ category="${categories[$cat_index]}"
 echo -e "\n  ${GREEN}$STAR Selected: ${WHITE}$category${RESET}\n"
 
 # Step 3: Get scripts in category
-if [ "$category" == "Root Scripts" ]; then
-    search_dir="$script_dir"
-    mapfile -t scripts < <(find "$search_dir" -maxdepth 1 -name "*.py" -exec basename {} \; | sort)
-elif [ "$language" == "TypeScript" ]; then
+if [ "$language" == "TypeScript" ]; then
     search_dir="$script_dir/$category"
     mapfile -t scripts < <(find "$search_dir" -name "*.ts" -exec basename {} \; | sort)
+elif [ "$language" == "Bash" ]; then
+    search_dir="$script_dir/$category"
+    mapfile -t scripts < <(find "$search_dir" -name "*.sh" -exec basename {} \; | sort)
 else
     search_dir="$script_dir/$category"
     mapfile -t scripts < <(find "$search_dir" -name "*.py" ! -name "__init__.py" -exec basename {} \; | sort)
@@ -155,8 +156,8 @@ script="${scripts[$script_index]}"
 echo -e "\n  ${GREEN}$STAR Selected: ${WHITE}$script${RESET}\n"
 
 # Build the full script path
-if [ "$category" == "Root Scripts" ]; then
-    script_path="$script"
+if [ "$language" == "Bash" ]; then
+    script_path="bash/$category/$script"
 elif [ "$language" == "TypeScript" ]; then
     script_path="src/$category/$script"
 else
@@ -178,6 +179,9 @@ if [ "$language" == "TypeScript" ]; then
     cd typescript
     echo -e "  ${DIM}$ op run --env-file=../prod.env -- $runner $script_path${RESET}\n"
     op run --env-file=../prod.env --no-masking -- $runner "$script_path"
+elif [ "$language" == "Bash" ]; then
+    echo -e "  ${DIM}$ $runner $script_path${RESET}\n"
+    $runner "$script_path"
 else
     cd python
     echo -e "  ${DIM}$ op run --env-file=../prod.env -- $runner $script_path${RESET}\n"
diff --git a/typescript/src/crowdin/README.md b/typescript/src/crowdin/README.md
new file mode 100644
index 0000000..d69dbe4
--- /dev/null
+++ b/typescript/src/crowdin/README.md
@@ -0,0 +1,125 @@
+# Crowdin Scripts
+
+Scripts for managing translations in a Crowdin project.
+
+## Getting Started
+
+Run scripts via the interactive runner from the project root:
+
+```bash
+make run
+# Select: TypeScript → crowdin → <script>
+```
+
+Scripts that require secrets (API keys, tokens) have them injected automatically via 1Password CLI.
+
+## Table of Contents
+
+- [writeData.ts](#writedatats)
+- [clearHiddenTranslations.ts](#clearhiddentranslationsts)
+- [reapplyTranslations.ts](#reapplytranslationsts)
+
+> **Typical workflow:** Run `writeData.ts` first to fetch and cache the project data locally, then use `clearHiddenTranslations.ts` and/or `reapplyTranslations.ts` as needed.
+
+---
+
+## writeData.ts
+
+Fetches all file IDs and string data from a Crowdin project and writes them to local JSON files in `data/`. These files are used as inputs by the other Crowdin scripts.
+
+### Usage
+
+```bash
+make run
+# Select: TypeScript → crowdin → writeData.ts
+```
+
+### Environment Variables
+
+| Variable | Description |
+|---|---|
+| `CROWDIN_PROJECT_ID` | Crowdin project numeric ID |
+| `CROWDIN_API_URL` | Base URL of the Crowdin API (e.g. `https://api.crowdin.com/api/v2`) |
+| `CROWDIN_TOKEN` | Crowdin personal access token |
+
+### Data Files
+
+**Output** (written to `data/`):
+
+| File | Format | Description |
+|---|---|---|
+| `crowdin-files.json` | JSON array of file IDs | All file IDs in the project |
+| `crowdin-strings.json` | JSON array of string objects | All strings in the project, including `id`, `isHidden`, and other metadata |
+
+---
+
+## clearHiddenTranslations.ts
+
+Deletes existing translations for all hidden (suppressed) strings in a Crowdin project, across all active languages, in parallel. Keeps a log file to avoid re-processing strings on subsequent runs.
+
+### Usage
+
+```bash
+make run
+# Select: TypeScript → crowdin → clearHiddenTranslations.ts
+```
+
+### Environment Variables
+
+| Variable | Description |
+|---|---|
+| `CROWDIN_PROJECT_ID` | Crowdin project numeric ID |
+| `CROWDIN_API_URL` | Base URL of the Crowdin API |
+| `CROWDIN_TOKEN` | Crowdin personal access token |
+
+### Data Files
+
+**Input** (expected in `data/`):
+
+| File | Format | Description |
+|---|---|---|
+| `crowdin-strings.json` | JSON array of string objects | Output of `writeData.ts` — each object must have `id` (number) and `isHidden` (boolean) fields |
+| `crowdin-strings-hidden.txt` | Plain text, one ID per line | Log of already-processed string IDs; create an empty file if starting fresh |
+
+**Output** (updated in `data/`):
+
+| File | Description |
+|---|---|
+| `crowdin-strings-hidden.txt` | Appended with the ID of each string processed in this run |
+
+### Notes
+
+- Run `writeData.ts` first to generate `crowdin-strings.json`.
+- Create an empty `crowdin-strings-hidden.txt` in `data/` before the first run. The script will append to it as strings are processed, so re-runs skip already-cleared strings.
+- Translations are deleted in parallel across all languages for each string, then the string ID is appended to the log before moving on to the next.
+
+---
+
+## reapplyTranslations.ts
+
+Triggers a pre-translation run on a Crowdin project using Translation Memory (TM), applying perfect matches only, and polls for completion every 5 seconds until the job reaches 100%.
+
+### Usage
+
+```bash
+make run
+# Select: TypeScript → crowdin → reapplyTranslations.ts
+```
+
+### Environment Variables
+
+| Variable | Description |
+|---|---|
+| `CROWDIN_PROJECT_ID` | Crowdin project numeric ID |
+| `CROWDIN_API_URL` | Base URL of the Crowdin API |
+| `CROWDIN_TOKEN` | Crowdin personal access token |
+
+### Data Files
+
+None. The script fetches the current file and language lists from Crowdin at runtime.
+
+### Notes
+
+- Pre-translation is configured with `translateWithPerfectMatchOnly: true` and `autoApproveOption: "perfectMatchOnly"`, so only exact TM matches are applied and automatically approved.
+- Already-approved translations are skipped (`skipApprovedTranslations: true`).
+- The script polls progress every 5 seconds and prints the percentage until the job is complete.
diff --git a/typescript/src/crowdin/clearHiddenTranslations.ts b/typescript/src/crowdin/clearHiddenTranslations.ts
index 325dff4..efb32f7 100644
--- a/typescript/src/crowdin/clearHiddenTranslations.ts
+++ b/typescript/src/crowdin/clearHiddenTranslations.ts
@@ -1,4 +1,15 @@
 /**
+ * @file Delete hidden/outdated translations from a Crowdin project.
+ * Reads a list of string IDs from data/crowdin-strings.json, checks which
+ * have already been processed via the log file, and deletes translations
+ * for unprocessed strings across all active languages in parallel.
+ * Data files (place in data/):
+ * - crowdin-strings.json       String IDs to clear (from crowdin/writeData.ts)
+ * - crowdin-strings-hidden.txt Log of already-processed string IDs
+ * Env vars:
+ * CROWDIN_PROJECT_ID - Crowdin project numeric ID
+ * CROWDIN_API_URL    - Base URL of the Crowdin API
+ * CROWDIN_TOKEN      - Crowdin personal access token.
  * @copyright NHCarrigan
  * @license Naomi's Public License
  * @author Naomi Carrigan
diff --git a/typescript/src/crowdin/reapplyTranslations.ts b/typescript/src/crowdin/reapplyTranslations.ts
index 52468a9..581a014 100644
--- a/typescript/src/crowdin/reapplyTranslations.ts
+++ b/typescript/src/crowdin/reapplyTranslations.ts
@@ -1,4 +1,12 @@
 /**
+ * @file Trigger a pre-translation run on a Crowdin project and wait for completion.
+ * Fetches all active languages and files, submits a pre-translation request,
+ * and polls for progress every 5 seconds until it reaches 100%%.
+ * Data files: None
+ * Env vars:
+ * CROWDIN_PROJECT_ID - Crowdin project numeric ID
+ * CROWDIN_API_URL    - Base URL of the Crowdin API
+ * CROWDIN_TOKEN      - Crowdin personal access token.
  * @copyright NHCarrigan
  * @license Naomi's Public License
  * @author Naomi Carrigan
diff --git a/typescript/src/discord/README.md b/typescript/src/discord/README.md
new file mode 100644
index 0000000..876265c
--- /dev/null
+++ b/typescript/src/discord/README.md
@@ -0,0 +1,87 @@
+# Discord Scripts
+
+Scripts for Discord bot utilities and server management.
+
+## Getting Started
+
+Run scripts via the interactive runner from the project root:
+
+```bash
+make run
+# Select: TypeScript → discord → <script>
+```
+
+Scripts that require secrets (API keys, tokens) have them injected automatically via 1Password CLI.
+
+## Table of Contents
+
+- [cycThreads.ts](#cycthreadsts)
+- [guildCount.ts](#guildcountts)
+
+---
+
+## cycThreads.ts
+
+Creates Discord forum threads for talk submissions in a conference channel. Iterates over a hardcoded list of talk titles and speakers, creating one public forum thread per talk with a standard discussion prompt message. Talks with missing titles or speakers are automatically filtered out.
+
+### Usage
+
+```bash
+make run
+# Select: TypeScript → discord → cycThreads.ts
+```
+
+### Environment Variables
+
+| Variable | Description |
+|---|---|
+| `DISCORD_TOKEN` | Discord bot token |
+
+### Data Files
+
+None. The list of talks (title + speaker) is hardcoded in the script. The target forum channel ID is also hardcoded.
+
+### Notes
+
+- **Before running**, update the `data` array in the script with the current conference talk submissions and update `CHANNEL_ID` to point to the correct Discord forum channel.
+- Uses the `backoffAndRetry` utility to handle Discord API rate limits automatically.
+- Entries with an empty `title` or `speaker` field are silently filtered before processing.
+- Threads are created with a 24-hour auto-archive duration (`auto_archive_duration: 1440`).
+
+---
+
+## guildCount.ts
+
+Counts and categorises all Discord servers a user belongs to. Uses the Discord OAuth2 PKCE flow (no user token ever stored) to authenticate, fetches the user's guild list, and categorises each server as owned, admin, moderating, partnered, verified, community, or discoverable. Results are printed to the console and displayed as an HTML dashboard served on a local port (opened automatically in your browser).
+
+### Usage
+
+```bash
+make run
+# Select: TypeScript → discord → guildCount.ts
+```
+
+### Environment Variables
+
+| Variable | Description |
+|---|---|
+| `DISCORD_CLIENT_ID` | OAuth2 application client ID (required) |
+| `DISCORD_CLIENT_SECRET` | OAuth2 application client secret (optional, improves security) |
+| `DISCORD_REDIRECT_URI` | OAuth2 redirect URI (default: `http://127.0.0.1:8721/callback`) |
+| `DISCORD_SCOPES` | OAuth2 scopes (default: `identify guilds`) |
+
+### Data Files
+
+None.
+
+### Notes
+
+- **Setup required before first run** (per machine):
+  1. Create a Discord application in the [Developer Portal](https://discord.com/developers/applications) and note the Client ID.
+  2. Under OAuth2 → Redirects, add `http://127.0.0.1:8721/callback` (or supply your own via `DISCORD_REDIRECT_URI`).
+  3. Optionally generate a Client Secret and set it as `DISCORD_CLIENT_SECRET`.
+  4. Export `DISCORD_CLIENT_ID` (and secret if used) before running the script.
+- The script prompts you to confirm setup is complete before launching the OAuth flow.
+- The OAuth flow uses PKCE (Proof Key for Code Exchange) — no user tokens are ever logged or stored; this approach is fully within Discord's Terms of Service.
+- Discord allows a maximum of 200 servers per user (with Nitro); the script fetches up to 200 at once.
+- The HTML dashboard is served on a random available local port and opened automatically; the server closes once the page is loaded.
diff --git a/typescript/src/discord/cycThreads.ts b/typescript/src/discord/cycThreads.ts
index 6a752b7..8eb08fb 100644
--- a/typescript/src/discord/cycThreads.ts
+++ b/typescript/src/discord/cycThreads.ts
@@ -1,4 +1,10 @@
 /**
+ * @file Create discussion threads for CYC talk submissions in a Discord channel.
+ * Iterates over a hardcoded list of talk titles and speakers and creates a
+ * Discord forum thread for each one. Update the data array and CHANNEL_ID before running.
+ * Data files: None (talk data is hardcoded in the script)
+ * Env vars:
+ * DISCORD_TOKEN - Bot token for the Discord API.
  * @copyright NHCarrigan
  * @license Naomi's Public License
  * @author Naomi Carrigan
diff --git a/typescript/src/discord/guildCount.ts b/typescript/src/discord/guildCount.ts
index 668dd6b..36db36b 100644
--- a/typescript/src/discord/guildCount.ts
+++ b/typescript/src/discord/guildCount.ts
@@ -1,4 +1,14 @@
 /**
+ * @file Count and categorise all Discord servers a user belongs to.
+ * Uses the Discord OAuth2 PKCE flow with a local callback server to authenticate,
+ * then fetches and categorises all guilds (owned, admin, moderated, partnered,
+ * verified, community, discoverable) and serves an HTML dashboard on localhost.
+ * Data files: None
+ * Env vars:
+ * DISCORD_CLIENT_ID     - OAuth2 application client ID
+ * DISCORD_CLIENT_SECRET - OAuth2 application client secret (optional)
+ * DISCORD_REDIRECT_URI  - OAuth2 redirect URI (default: http://127.0.0.1:8721/callback)
+ * DISCORD_SCOPES        - OAuth2 scopes (default: identify guilds).
  * @copyright NHCarrigan
  * @license Naomi's Public License
  * @author Naomi Carrigan
diff --git a/typescript/src/discourse/README.md b/typescript/src/discourse/README.md
new file mode 100644
index 0000000..04ad4e3
--- /dev/null
+++ b/typescript/src/discourse/README.md
@@ -0,0 +1,84 @@
+# Discourse Scripts
+
+Scripts for Discourse forum management.
+
+## Getting Started
+
+Run scripts via the interactive runner from the project root:
+
+```bash
+make run
+# Select: TypeScript → discourse → <script>
+```
+
+Scripts that require secrets (API keys, tokens) have them injected automatically via 1Password CLI.
+
+## Table of Contents
+
+- [bulkUpdateCategories.ts](#bulkupdatecategoriests)
+- [closeOldTopics.ts](#closeoldtopicsts)
+
+---
+
+## bulkUpdateCategories.ts
+
+Enables auto-close on all categories and subcategories in a Discourse forum. Fetches the full category list (including subcategories), then updates each one to auto-close based on last post after 672 hours (28 days).
+
+### Usage
+
+```bash
+make run
+# Select: TypeScript → discourse → bulkUpdateCategories.ts
+```
+
+### Environment Variables
+
+| Variable | Description |
+|---|---|
+| `DISCOURSE_URL` | Base URL of the Discourse instance (e.g. `https://forum.example.com`) |
+| `DISCOURSE_API_KEY` | Discourse API key |
+| `DISCOURSE_API_USERNAME` | Discourse API username |
+
+### Data Files
+
+None.
+
+### Notes
+
+- Auto-close is configured to trigger based on **last post** (not topic creation date), so active topics remain open.
+- The auto-close threshold is hardcoded to `672` hours (28 days). Update the `auto_close_hours` value in the script to change this.
+- Uses the `backoffAndRetry` utility to handle Discourse API rate limits automatically.
+- Categories are processed sequentially; subcategories are fetched individually and deduplicated.
+- Failures for individual categories are logged but do not stop the rest of the run.
+
+---
+
+## closeOldTopics.ts
+
+Closes inactive Discourse topics that have had no activity for 28 or more days, skipping any topics older than 6 months (which are assumed to be already archived or otherwise handled). Already-closed topics are also skipped.
+
+### Usage
+
+```bash
+make run
+# Select: TypeScript → discourse → closeOldTopics.ts
+```
+
+### Environment Variables
+
+| Variable | Description |
+|---|---|
+| `DISCOURSE_URL` | Base URL of the Discourse instance (e.g. `https://forum.example.com`) |
+| `DISCOURSE_API_KEY` | Discourse API key |
+| `DISCOURSE_API_USERNAME` | Discourse API username |
+
+### Data Files
+
+None.
+
+### Notes
+
+- Topics are fetched from the `/latest.json` endpoint in ascending age order. Pagination stops automatically once a topic older than 6 months is encountered.
+- The inactivity threshold is **28 days** and the age cutoff is **180 days** (approximately 6 months); both are defined as constants in the script.
+- A 500 ms delay is added between close requests to avoid hitting Discourse rate limits. Rate-limit (HTTP 429) responses trigger an automatic 5-second wait and retry.
+- At the end of the run, a summary of closed/failed counts is printed.
diff --git a/typescript/src/discourse/bulkUpdateCategories.ts b/typescript/src/discourse/bulkUpdateCategories.ts
index 0110298..c9d5f05 100644
--- a/typescript/src/discourse/bulkUpdateCategories.ts
+++ b/typescript/src/discourse/bulkUpdateCategories.ts
@@ -1,4 +1,12 @@
 /**
+ * @file Set auto-close settings on all Discourse forum categories.
+ * Fetches all categories and subcategories and enables auto-close based on
+ * last post (672 hours / 28 days) for each one.
+ * Data files: None
+ * Env vars:
+ * DISCOURSE_URL          - Base URL of the Discourse instance
+ * DISCOURSE_API_KEY      - Discourse API key
+ * DISCOURSE_API_USERNAME - Discourse API username.
  * @copyright NHCarrigan
  * @license Naomi's Public License
  * @author Naomi Carrigan
diff --git a/typescript/src/discourse/closeOldTopics.ts b/typescript/src/discourse/closeOldTopics.ts
index daea1a1..410b98c 100644
--- a/typescript/src/discourse/closeOldTopics.ts
+++ b/typescript/src/discourse/closeOldTopics.ts
@@ -1,4 +1,11 @@
 /**
+ * @file Close inactive Discourse topics that have had no activity for 28+ days.
+ * Skips topics older than 6 months (already archived) and any that are already closed.
+ * Data files: None
+ * Env vars:
+ * DISCOURSE_URL          - Base URL of the Discourse instance
+ * DISCOURSE_API_KEY      - Discourse API key
+ * DISCOURSE_API_USERNAME - Discourse API username.
  * @copyright NHCarrigan
  * @license Naomi's Public License
  * @author Naomi Carrigan
diff --git a/typescript/src/gitea/README.md b/typescript/src/gitea/README.md
new file mode 100644
index 0000000..a24f1fa
--- /dev/null
+++ b/typescript/src/gitea/README.md
@@ -0,0 +1,124 @@
+# Gitea Scripts
+
+Scripts for bulk file management across Gitea repositories.
+
+All scripts operate across three NHCarrigan Gitea organisations: `nhcarrigan`, `nhcarrigan-private`, and `nhcarrigan-games`.
+
+## Getting Started
+
+Run scripts via the interactive runner from the project root:
+
+```bash
+make run
+# Select: TypeScript → gitea → <script>
+```
+
+Scripts that require secrets (API keys, tokens) have them injected automatically via 1Password CLI.
+
+## Table of Contents
+
+- [deleteFromAllRepos.ts](#deletefromallreposets)
+- [uploadToAllRepos.ts](#uploadtoallreposets)
+- [uploadToReposConditionally.ts](#uploadtoreposconditionallyts)
+
+---
+
+## deleteFromAllRepos.ts
+
+Deletes a specified file from every repository across all NHCarrigan Gitea organisations. Checks each repository first; if the file exists it is deleted, otherwise the repository is skipped.
+
+### Usage
+
+```bash
+make run
+# Select: TypeScript → gitea → deleteFromAllRepos.ts
+```
+
+### Environment Variables
+
+| Variable | Description |
+|---|---|
+| `GITEA_TOKEN` | Gitea personal access token with repository write permissions |
+
+### Data Files
+
+None. The file path to delete is entered interactively when the script runs.
+
+### Notes
+
+- You will be prompted for the file path to delete (e.g. `.gitea/workflows/security.yml`). Do **not** include a leading slash.
+- The deletion commit message is automatically set to `feat: automated delete of {path}`.
+- Repositories are fetched 100 at a time with automatic pagination via `paginatedFetch`.
+- Failures for individual repositories are logged but do not stop the rest of the run.
+
+---
+
+## uploadToAllRepos.ts
+
+Uploads a file from the local `data/` directory to every repository across all NHCarrigan Gitea organisations. If the file already exists in a repository it is updated; otherwise it is created.
+
+### Usage
+
+```bash
+make run
+# Select: TypeScript → gitea → uploadToAllRepos.ts
+```
+
+### Environment Variables
+
+| Variable | Description |
+|---|---|
+| `GITEA_TOKEN` | Gitea personal access token with repository write permissions |
+
+### Data Files
+
+**Input** (place in `data/`):
+
+| File | Format | Description |
+|---|---|---|
+| *(any file)* | Any | The file to upload; name and destination path are entered interactively |
+
+### Notes
+
+- You will be prompted for:
+  - **Local filename** — path relative to `data/` (e.g. `actions.yml` or `gitea/actions.yml`). The file must exist in `data/`.
+  - **Destination path** — path in each repository (e.g. `.gitea/workflows/actions.yml`). Do **not** include a leading slash.
+- Commit messages are automatically set to `feat: automated upload of {path}`.
+- A summary of processed / succeeded / failed counts is printed at the end.
+
+---
+
+## uploadToReposConditionally.ts
+
+Uploads a file to Gitea repositories only if a condition file does (or does not) exist in each repository. Useful for targeting only repositories that have a specific workflow file, language marker, or configuration already in place.
+
+### Usage
+
+```bash
+make run
+# Select: TypeScript → gitea → uploadToReposConditionally.ts
+```
+
+### Environment Variables
+
+| Variable | Description |
+|---|---|
+| `GITEA_TOKEN` | Gitea personal access token with repository write permissions |
+
+### Data Files
+
+**Input** (place in `data/`):
+
+| File | Format | Description |
+|---|---|---|
+| *(any file)* | Any | The file to upload; name and destination path are entered interactively |
+
+### Notes
+
+- You will be prompted for:
+  - **Local filename** — path relative to `data/` (same as `uploadToAllRepos.ts`).
+  - **Destination path** — path in each repository.
+  - **Condition file path** — path to check in each repository (e.g. `package.json` or `.gitea/workflows/ci.yml`). Do **not** include a leading slash.
+  - **Upload condition** — whether to upload when the condition file **exists** or when it **does not exist**.
+- If the condition is not met for a repository, it is skipped.
+- A summary of processed / succeeded / failed / skipped counts is printed at the end.
diff --git a/typescript/src/gitea/deleteFromAllRepos.ts b/typescript/src/gitea/deleteFromAllRepos.ts
index 0814539..421e959 100644
--- a/typescript/src/gitea/deleteFromAllRepos.ts
+++ b/typescript/src/gitea/deleteFromAllRepos.ts
@@ -1,4 +1,10 @@
 /**
+ * @file Delete a file from every repository across all nhcarrigan Gitea orgs.
+ * Prompts for the file path to delete, then removes it from every repo
+ * across nhcarrigan, nhcarrigan-private, and nhcarrigan-games.
+ * Data files: None
+ * Env vars:
+ * GITEA_TOKEN - Gitea personal access token with repo write permissions.
  * @copyright NHCarrigan
  * @license Naomi's Public License
  * @author Naomi Carrigan
diff --git a/typescript/src/gitea/uploadToAllRepos.ts b/typescript/src/gitea/uploadToAllRepos.ts
index 74a0dc6..8d0f304 100644
--- a/typescript/src/gitea/uploadToAllRepos.ts
+++ b/typescript/src/gitea/uploadToAllRepos.ts
@@ -1,4 +1,11 @@
 /**
+ * @file Upload a file from data/ to every repository across all nhcarrigan Gitea orgs.
+ * Prompts for the local filename and destination path, then creates or updates
+ * the file in every repo across nhcarrigan, nhcarrigan-private, and nhcarrigan-games.
+ * Data files (place in data/):
+ * - Any file to upload (prompted interactively)
+ * Env vars:
+ * GITEA_TOKEN - Gitea personal access token with repo write permissions.
  * @copyright NHCarrigan
  * @license Naomi's Public License
  * @author Naomi Carrigan
diff --git a/typescript/src/gitea/uploadToReposConditionally.ts b/typescript/src/gitea/uploadToReposConditionally.ts
index 90f540c..a93d3b8 100644
--- a/typescript/src/gitea/uploadToReposConditionally.ts
+++ b/typescript/src/gitea/uploadToReposConditionally.ts
@@ -1,4 +1,11 @@
 /**
+ * @file Conditionally upload a file to Gitea repos based on whether another file exists.
+ * Prompts for the file to upload, a condition file path, and whether to upload
+ * when the condition file exists or does not exist.
+ * Data files (place in data/):
+ * - Any file to upload (prompted interactively)
+ * Env vars:
+ * GITEA_TOKEN - Gitea personal access token with repo write permissions.
  * @copyright NHCarrigan
  * @license Naomi's Public License
  * @author Naomi Carrigan
diff --git a/typescript/src/github/README.md b/typescript/src/github/README.md
new file mode 100644
index 0000000..2e1550c
--- /dev/null
+++ b/typescript/src/github/README.md
@@ -0,0 +1,124 @@
+# GitHub Scripts
+
+Scripts for GitHub API interactions and organisation management.
+
+## Getting Started
+
+Run scripts via the interactive runner from the project root:
+
+```bash
+make run
+# Select: TypeScript → github → <script>
+```
+
+Scripts that require secrets (API keys, tokens) have them injected automatically via 1Password CLI.
+
+## Table of Contents
+
+- [auditNpmPackages.ts](#auditnpmpackagets)
+- [onboardMentee.ts](#onboardmenteeets)
+- [postUserStories.ts](#postuserstoriests)
+
+---
+
+## auditNpmPackages.ts
+
+Audits npm packages across one or more GitHub organisations for known vulnerable package versions. For each repository, it fetches `package.json` (if present) and checks `dependencies` and `devDependencies` against a hardcoded list of vulnerable packages and their specific vulnerable versions. Results are written to a text file in `data/`.
+
+### Usage
+
+```bash
+make run
+# Select: TypeScript → github → auditNpmPackages.ts
+```
+
+### Environment Variables
+
+| Variable | Description |
+|---|---|
+| `GITHUB_TOKEN` | GitHub personal access token with organisation read permissions |
+
+### Data Files
+
+**Output** (written to `data/`):
+
+| File | Format | Description |
+|---|---|---|
+| `npm-vulnerabilities.txt` | Plain text, one finding per line | Repositories with vulnerable or potentially affected packages |
+
+### Notes
+
+- **Before running**, update the `orgsToCheck` array and the `vulnerablePackages` list in the script to match the organisations and vulnerabilities you want to audit.
+- The output file is **overwritten** at the start of each run.
+- Repositories without a `package.json` are skipped silently.
+- The script distinguishes between finding a package at the exact vulnerable version (marked `!! FOUND VULNERABLE !!`) and finding the package at a different version (noted for awareness).
+- Repositories are fetched 100 at a time with automatic pagination.
+
+---
+
+## onboardMentee.ts
+
+Onboards a new mentee to the `nhcarrigan-mentorship` GitHub organisation. Interactively prompts for the mentee's Discord ID, full name, and GitHub username, then:
+
+1. Creates a public repository in `nhcarrigan-mentorship` named after the mentee (kebab-case).
+2. Adds the mentee as a collaborator with `maintain` permissions.
+3. Sends a welcome message to the mentorship Discord channel tagging the mentee with their repository URL.
+
+### Usage
+
+```bash
+make run
+# Select: TypeScript → github → onboardMentee.ts
+```
+
+### Environment Variables
+
+| Variable | Description |
+|---|---|
+| `GITHUB_TOKEN` | GitHub personal access token with org and repo write permissions |
+| `DISCORD_TOKEN` | Discord bot token |
+
+### Data Files
+
+None.
+
+### Notes
+
+- The target GitHub organisation (`nhcarrigan-mentorship`) and Discord channel ID are hardcoded in the script.
+- Full name is converted to kebab-case for the repository name (e.g. `Jane Doe` → `jane-doe`). Special characters other than letters, digits, spaces, and hyphens are stripped.
+- Discord ID must be a numeric string.
+- A summary of the onboarded mentee is printed to the console on success.
+
+---
+
+## postUserStories.ts
+
+Posts markdown files as GitHub issue body content. Reads all `.md` files from `data/stories/`, parses the filename to extract the repository name and issue number, then updates the corresponding GitHub issue with the file content as its description.
+
+### Usage
+
+```bash
+make run
+# Select: TypeScript → github → postUserStories.ts
+```
+
+### Environment Variables
+
+| Variable | Description |
+|---|---|
+| `GITHUB_TOKEN` | GitHub personal access token with repo write permissions |
+
+### Data Files
+
+**Input** (expected in `data/stories/`):
+
+| File pattern | Format | Description |
+|---|---|---|
+| `{repo-name}-{issue-number}.md` | Markdown | User story content for a specific issue; filename determines the target repo and issue number |
+
+### Notes
+
+- **Before running**, update the `orgName` constant in the script to the target GitHub organisation.
+- Filenames must follow the exact pattern `{repo-name}-{issue-number}.md` (e.g. `my-repo-42.md`). Files that don't match are skipped with an error message.
+- The script updates the issue **description** (body), not a comment.
+- A summary of successful and failed updates is printed at the end.
diff --git a/typescript/src/github/auditNpmPackages.ts b/typescript/src/github/auditNpmPackages.ts
index 5a65d06..dda69f5 100644
--- a/typescript/src/github/auditNpmPackages.ts
+++ b/typescript/src/github/auditNpmPackages.ts
@@ -1,4 +1,12 @@
 /**
+ * @file Audit npm packages across a GitHub organisation for known vulnerabilities.
+ * Lists all repositories in the target org, fetches each package.json, and checks
+ * for usage of packages in the hardcoded vulnerable package list.
+ * Update the vulnerable package list and orgName constant before running.
+ * Outputs (written to data/):
+ * - npm-vulnerabilities.txt  Repos and packages with vulnerability findings
+ * Env vars:
+ * GITHUB_TOKEN - GitHub personal access token with org read permissions.
  * @copyright NHCarrigan
  * @license Naomi's Public License
  * @author Naomi Carrigan
diff --git a/typescript/src/github/onboardMentee.ts b/typescript/src/github/onboardMentee.ts
index 0c704ef..5129925 100644
--- a/typescript/src/github/onboardMentee.ts
+++ b/typescript/src/github/onboardMentee.ts
@@ -1,4 +1,12 @@
 /**
+ * @file Onboard a new mentee to the nhcarrigan-mentorship GitHub organisation.
+ * Prompts for the mentee's Discord ID, full name, and GitHub username, creates
+ * a personal repository in the org, adds the mentee as a collaborator with
+ * maintain permissions, and posts a welcome message to the Discord channel.
+ * Data files: None
+ * Env vars:
+ * GITHUB_TOKEN  - GitHub personal access token with org and repo permissions
+ * DISCORD_TOKEN - Bot token for the Discord API.
  * @copyright NHCarrigan
  * @license Naomi's Public License
  * @author Naomi Carrigan
diff --git a/typescript/src/github/postUserStories.ts b/typescript/src/github/postUserStories.ts
index c2cc618..4e85f64 100644
--- a/typescript/src/github/postUserStories.ts
+++ b/typescript/src/github/postUserStories.ts
@@ -1,4 +1,11 @@
 /**
+ * @file Post user story markdown files as GitHub issue descriptions.
+ * Reads all markdown files from data/stories/ and updates the corresponding
+ * GitHub issue with that content. Filename format: {repo-name}-{issue-number}.md.
+ * Data files (place in data/stories/):
+ * - {repo-name}-{issue-number}.md  User story content for each issue
+ * Env vars:
+ * GITHUB_TOKEN - GitHub personal access token with repo write permissions.
  * @copyright NHCarrigan
  * @license Naomi's Public License
  * @author Naomi Carrigan
diff --git a/typescript/src/music/README.md b/typescript/src/music/README.md
new file mode 100644
index 0000000..5eb0929
--- /dev/null
+++ b/typescript/src/music/README.md
@@ -0,0 +1,48 @@
+# Music Scripts
+
+Scripts for working with music files and metadata.
+
+## Getting Started
+
+Run scripts via the interactive runner from the project root:
+
+```bash
+make run
+# Select: TypeScript → music → <script>
+```
+
+Scripts that require secrets (API keys, tokens) have them injected automatically via 1Password CLI.
+
+## Table of Contents
+
+- [id3v2.ts](#id3v2ts)
+
+---
+
+## id3v2.ts
+
+Tags a batch of MP3 files with ID3v2 metadata and album art. Designed for tagging downloaded Neuro-sama tracks: reads all `.mp3` files from a local directory, extracts the track title from the filename, sets the artist to `"Neuro-sama"`, and applies a specified cover image using the `eyeD3` and `id3v2` CLI tools. Progress is displayed via a terminal progress bar.
+
+### Usage
+
+```bash
+make run
+# Select: TypeScript → music → id3v2.ts
+```
+
+### Environment Variables
+
+None.
+
+### Data Files
+
+None. The input directory and cover image path are defined as constants at the top of the script.
+
+### Notes
+
+- **Before running**, update the two constants at the top of the script:
+  - `directory` — path to the folder containing your MP3 files (default: `/home/naomi/down`)
+  - `cover` — path to the cover image to embed (default: `/home/naomi/neuro.png`)
+- Requires the [`eyeD3`](https://eyed3.readthedocs.io/) and [`id3v2`](https://id3v2.sourceforge.net/) CLI tools to be installed on your system.
+- Title is extracted from the filename by looking for text wrapped in `"..."` or `＂...＂` (both ASCII and fullwidth double quotes). If no quoted text is found, the filename (minus `.mp3`) is used as the title.
+- Non-MP3 files in the directory are silently skipped.
diff --git a/typescript/src/music/id3v2.ts b/typescript/src/music/id3v2.ts
index 1055f89..d06392b 100644
--- a/typescript/src/music/id3v2.ts
+++ b/typescript/src/music/id3v2.ts
@@ -1,4 +1,10 @@
 /**
+ * @file Tag MP3 files with ID3v2 metadata and album art for Neuro-sama tracks.
+ * Reads all MP3 files from the download directory, extracts the title from
+ * the filename, sets the artist to "Neuro-sama", and applies the cover image.
+ * Update the directory and cover constants before running.
+ * Data files: None (reads from a local directory path defined in the script)
+ * Env vars: None (uses eyeD3 and id3v2 CLI tools).
  * @copyright NHCarrigan
  * @license Naomi's Public License
  * @author Naomi Carrigan
diff --git a/typescript/src/s3/README.md b/typescript/src/s3/README.md
new file mode 100644
index 0000000..137bef7
--- /dev/null
+++ b/typescript/src/s3/README.md
@@ -0,0 +1,163 @@
+# S3 Scripts
+
+Scripts for managing objects in an S3-compatible bucket (e.g. Hetzner Object Storage).
+
+All scripts use the AWS SDK and share the same three environment variables.
+
+## Getting Started
+
+Run scripts via the interactive runner from the project root:
+
+```bash
+make run
+# Select: TypeScript → s3 → <script>
+```
+
+Scripts that require secrets (API keys, tokens) have them injected automatically via 1Password CLI.
+
+## Table of Contents
+
+- [upload.ts](#uploadts)
+- [bulkUpload.ts](#bulkuploAdts)
+- [correctContentType.ts](#correctcontenttypets)
+- [deleteContents.ts](#deletecontentsts)
+
+---
+
+## upload.ts
+
+Uploads a single file from the local `data/` directory to the S3 bucket. Prompts for the local filename and the destination key (path) in the bucket. The MIME type is detected automatically from the file extension.
+
+### Usage
+
+```bash
+make run
+# Select: TypeScript → s3 → upload.ts
+```
+
+### Environment Variables
+
+| Variable | Description |
+|---|---|
+| `AWS_ACCESS_KEY_ID` | S3 access key ID |
+| `AWS_SECRET_ACCESS_KEY` | S3 secret access key |
+| `S3_ENDPOINT` | S3-compatible endpoint URL |
+
+### Data Files
+
+**Input** (place in `data/`):
+
+| File | Format | Description |
+|---|---|---|
+| *(any file)* | Any | The file to upload; name and destination path are entered interactively |
+
+### Notes
+
+- You will be prompted for:
+  - **Local filename** — path relative to `data/` (e.g. `naomi.png` or `img/naomi.png`). The file must exist in `data/`.
+  - **Destination path** — the key to use in the bucket (e.g. `img/naomi.png`). Do **not** include a leading slash.
+- If the file extension is unrecognised, a warning is printed and the object is uploaded without a `Content-Type` header.
+- The bucket name is hardcoded as `nhcarrigan`. Update the `Bucket` constant in the script to target a different bucket.
+
+---
+
+## bulkUpload.ts
+
+Uploads all files in the `data/` directory (recursively) to the S3 bucket. Before uploading, it displays a tree view of all files to be uploaded and asks for confirmation. A progress bar tracks upload progress.
+
+### Usage
+
+```bash
+make run
+# Select: TypeScript → s3 → bulkUpload.ts
+```
+
+### Environment Variables
+
+| Variable | Description |
+|---|---|
+| `AWS_ACCESS_KEY_ID` | S3 access key ID |
+| `AWS_SECRET_ACCESS_KEY` | S3 secret access key |
+| `S3_ENDPOINT` | S3-compatible endpoint URL |
+
+### Data Files
+
+**Input** (place in `data/`):
+
+| File | Format | Description |
+|---|---|---|
+| *(all files)* | Any | Every file under `data/` is uploaded, preserving the relative directory structure as the S3 key |
+
+### Notes
+
+- The destination key for each file mirrors its path relative to `data/` (e.g. `data/img/naomi.png` → S3 key `img/naomi.png`).
+- MIME types are detected from file extensions. Files with unrecognised extensions are uploaded without a `Content-Type` header.
+- You must confirm the upload by typing `y` at the prompt; the default is `n` (cancel).
+- Errors for individual files are logged but do not stop the rest of the run. A final summary of succeeded/failed counts is printed.
+- The bucket name is hardcoded as `nhcarrigan`.
+
+---
+
+## correctContentType.ts
+
+Audits all objects in the S3 bucket and interactively corrects their `Content-Type` metadata where it is missing, set to `application/octet-stream`, or does not match the expected MIME type for the file extension. Correction is performed by copying the object over itself with the new metadata (no data transfer, metadata-only update).
+
+### Usage
+
+```bash
+make run
+# Select: TypeScript → s3 → correctContentType.ts
+```
+
+### Environment Variables
+
+| Variable | Description |
+|---|---|
+| `AWS_ACCESS_KEY_ID` | S3 access key ID |
+| `AWS_SECRET_ACCESS_KEY` | S3 secret access key |
+| `S3_ENDPOINT` | S3-compatible endpoint URL |
+
+### Data Files
+
+None.
+
+### Notes
+
+- For each object with an incorrect or missing `Content-Type`, you will be asked (with a default of `yes`) whether to update it. This allows skipping specific files if needed.
+- Directory marker objects (keys ending in `/`) are automatically skipped.
+- Objects with unrecognised extensions are also skipped (no known expected MIME type).
+- A final summary of corrected / skipped / errored counts is printed.
+- The bucket name is hardcoded as `nhcarrigan`.
+
+---
+
+## deleteContents.ts
+
+Deletes **all** objects from a specified S3 bucket. Requires double confirmation before proceeding: first you must type the exact bucket name, then confirm with a yes/no prompt. Objects are deleted in batches of 1,000 with a progress bar.
+
+### Usage
+
+```bash
+make run
+# Select: TypeScript → s3 → deleteContents.ts
+```
+
+### Environment Variables
+
+| Variable | Description |
+|---|---|
+| `AWS_ACCESS_KEY_ID` | S3 access key ID |
+| `AWS_SECRET_ACCESS_KEY` | S3 secret access key |
+| `S3_ENDPOINT` | S3-compatible endpoint URL |
+
+### Data Files
+
+None.
+
+### Notes
+
+- **This operation is irreversible.** All objects in the bucket will be permanently deleted.
+- The script prompts for the bucket name (with basic validation), then requires you to type the bucket name again exactly as a first confirmation, followed by a yes/no prompt defaulting to `no`.
+- If the bucket is already empty the script exits immediately without prompting for confirmation.
+- Deletion uses the S3 batch delete API (up to 1,000 objects per request) for efficiency.
+- A final summary of succeeded/failed counts is printed.
diff --git a/typescript/src/s3/bulkUpload.ts b/typescript/src/s3/bulkUpload.ts
index c7ef695..d9341fb 100644
--- a/typescript/src/s3/bulkUpload.ts
+++ b/typescript/src/s3/bulkUpload.ts
@@ -1,4 +1,13 @@
 /**
+ * @file Upload all files in the data/ directory to an S3-compatible bucket.
+ * Displays a tree of files to upload, prompts for confirmation, then uploads
+ * with a progress bar showing per-file status.
+ * Data files (place in data/):
+ * - All files to upload are read from the data/ directory recursively
+ * Env vars:
+ * AWS_ACCESS_KEY_ID     - S3 access key
+ * AWS_SECRET_ACCESS_KEY - S3 secret key
+ * S3_ENDPOINT           - S3-compatible endpoint URL.
  * @copyright NHCarrigan
  * @license Naomi's Public License
  * @author Naomi Carrigan
diff --git a/typescript/src/s3/correctContentType.ts b/typescript/src/s3/correctContentType.ts
index 29a8824..a97ebfc 100644
--- a/typescript/src/s3/correctContentType.ts
+++ b/typescript/src/s3/correctContentType.ts
@@ -1,4 +1,12 @@
 /**
+ * @file Fix incorrect Content-Type metadata on objects in an S3-compatible bucket.
+ * Lists all objects, detects MIME type from extension, and re-uploads metadata
+ * for any file whose stored Content-Type does not match the expected type.
+ * Data files: None
+ * Env vars:
+ * AWS_ACCESS_KEY_ID     - S3 access key
+ * AWS_SECRET_ACCESS_KEY - S3 secret key
+ * S3_ENDPOINT           - S3-compatible endpoint URL.
  * @copyright NHCarrigan
  * @license Naomi's Public License
  * @author Naomi Carrigan
diff --git a/typescript/src/s3/deleteContents.ts b/typescript/src/s3/deleteContents.ts
index a145600..cd30454 100644
--- a/typescript/src/s3/deleteContents.ts
+++ b/typescript/src/s3/deleteContents.ts
@@ -1,4 +1,12 @@
 /**
+ * @file Delete all objects from an S3-compatible bucket.
+ * Prompts for the bucket name, requires double confirmation (type name + yes/no),
+ * then lists and deletes all objects in batches with a progress bar.
+ * Data files: None
+ * Env vars:
+ * AWS_ACCESS_KEY_ID     - S3 access key
+ * AWS_SECRET_ACCESS_KEY - S3 secret key
+ * S3_ENDPOINT           - S3-compatible endpoint URL.
  * @copyright NHCarrigan
  * @license Naomi's Public License
  * @author Naomi Carrigan
diff --git a/typescript/src/s3/upload.ts b/typescript/src/s3/upload.ts
index d046285..233c417 100644
--- a/typescript/src/s3/upload.ts
+++ b/typescript/src/s3/upload.ts
@@ -1,4 +1,12 @@
 /**
+ * @file Upload a single file from the data/ directory to an S3-compatible bucket.
+ * Prompts for the local filename and the destination path in the bucket.
+ * Data files (place in data/):
+ * - Any file to upload (prompted interactively)
+ * Env vars:
+ * AWS_ACCESS_KEY_ID     - S3 access key
+ * AWS_SECRET_ACCESS_KEY - S3 secret key
+ * S3_ENDPOINT           - S3-compatible endpoint URL.
  * @copyright NHCarrigan
  * @license Naomi's Public License
  * @author Naomi Carrigan
diff --git a/typescript/src/security/README.md b/typescript/src/security/README.md
new file mode 100644
index 0000000..502372d
--- /dev/null
+++ b/typescript/src/security/README.md
@@ -0,0 +1,53 @@
+# Security Scripts
+
+Scripts for security analysis and reporting.
+
+## Getting Started
+
+Run scripts via the interactive runner from the project root:
+
+```bash
+make run
+# Select: TypeScript → security → <script>
+```
+
+Scripts that require secrets (API keys, tokens) have them injected automatically via 1Password CLI.
+
+## Table of Contents
+
+- [generateReport.ts](#generatereportts)
+
+---
+
+## generateReport.ts
+
+Generates a public HTML security transparency dashboard from [DefectDojo](https://www.defectdojo.org/) findings. Fetches all active, verified findings via the DefectDojo API (handling pagination), maps each finding to its product, aggregates counts by severity (Critical / High / Medium / Low), and writes a styled HTML report to `data/public_security_report.html`.
+
+### Usage
+
+```bash
+make run
+# Select: TypeScript → security → generateReport.ts
+```
+
+### Environment Variables
+
+| Variable | Description |
+|---|---|
+| `DOJO_TOKEN` | DefectDojo personal API token |
+
+### Data Files
+
+**Output** (written to `data/`):
+
+| File | Format | Description |
+|---|---|---|
+| `public_security_report.html` | HTML | Styled security transparency dashboard, grouped by project with severity counts |
+
+### Notes
+
+- The DefectDojo instance URL is hardcoded to `https://security.nhcarrigan.com`. Update the `dojoUrl` constant in the script to point to a different instance.
+- Both findings and products are fetched with pagination (up to 1,000 per page); the script handles multiple pages automatically.
+- Findings without a product assigned are skipped with a warning.
+- Project names are stripped of their org prefix (`nhcarrigan/website-headers` → `Website Headers`) and formatted to title case for display.
+- The output HTML is self-contained and references the NHCarrigan global headers script (`https://cdn.nhcarrigan.com/headers/index.js`) for theming.
diff --git a/typescript/src/security/generateReport.ts b/typescript/src/security/generateReport.ts
index f5aa469..8dbac63 100644
--- a/typescript/src/security/generateReport.ts
+++ b/typescript/src/security/generateReport.ts
@@ -1,5 +1,12 @@
 /* eslint-disable max-lines -- Necessary for all of the HTML templating. */
 /**
+ * @file Generate a public HTML security report from DefectDojo findings.
+ * Fetches all active, verified findings from DefectDojo and produces a styled
+ * HTML dashboard grouped by project with severity counts.
+ * Outputs (written to data/):
+ * - public_security_report.html  HTML security report
+ * Env vars:
+ * DOJO_TOKEN - DefectDojo API token.
  * @copyright NHCarrigan
  * @license Naomi's Public License
  * @author Naomi Carrigan