What is ctk?
ctk is a Claude Code mod by tc3oliver that token-light team companion: capped agent teams, risk-based review, disciplined debugging. It is listed under Cost & usage and has 1 GitHub stars.
| Type | Claude code mod |
|---|---|
| Author | tc3oliver |
| Repository | tc3oliver/claude-team-kit |
| Popularity | 1 GitHub stars |
| Category | Cost & usage |
| Security | Review before installing (64/100) |
| Rank | #2,324 of 5,272 Claude Code mods; #389 in Cost & usage |
| License | MIT |
| Last commit | 2026-10-14 |
| Hooks | 13 events |
| Sees | classic hooks, every prompt, every tool call, mcp__ctk__ctk_config calls, mcp__ctk__ctk_team_status calls, subagent spawns |
| Draws on | AbovePrompt, Pane |
Is ctk safe to install?
ctk scores 64/100 on the MCPMods security check: Review before installing. Things to review: writes files or config; reads environment variables; watches every prompt or event. It passed 5 of 8 checks.
Mod footprints come from claude plugin validate, which lists every event a mod hooks and every API call it makes without running it.
| Check | Result |
|---|---|
| No network access | Pass |
| Starts no processes | Pass |
| Writes files or config | Review |
| Reads environment variables | Review |
| Watches every prompt or event | Review |
| Doesn't drive Claude | Pass |
| Passes claude plugin validate | Pass |
| Has an open-source license | Pass |
API calls in its code
| Call | What it means |
|---|---|
$.agent.list | |
$.clock.after | |
$.clock.now | |
$.command.register | |
$.config.list | |
$.config.set | changes config |
$.env.get | reads env vars |
$.fs.read | reads files |
$.fs.write | writes files |
$.session.cwd | |
$.session.id | |
$.session.model | |
$.session.usage | |
$.settings.read | reads settings |
$.tool.list | |
$.tool.register | drives Claude |
$.ui.close | draws interface |
$.ui.invalidate | draws interface |
$.ui.open | draws interface |
$.ui.resolve | draws interface |
How do I install ctk?
- Check your Claude Code version. Mods need Claude Code 2.1.287 or later and are on by default.
claude --version
- Read its footprint. This lists every event it hooks and every API call it makes, without running it.
git clone https://github.com/tc3oliver/claude-team-kit claude plugin validate ./claude-team-kit/plugins/ctk
- Install it. Run this in your terminal, then /reload-plugins in an open session.
claude plugin marketplace add tc3oliver/claude-team-kit && claude plugin install ctk@ctk-kit
Or ask Claude to set it up
Paste this into Claude Code and it installs ctk for you:
Install the "ctk" Claude Code mod from https://github.com/tc3oliver/claude-team-kit/tree/main/plugins/ctk. Run claude plugin validate on it first and show me what it can access before you enable it.