What is watch-tower?
watch-tower is a Claude Code mod by BastienTeissier that watch Tower: a pane to follow a Claude Code session at a glance (subagents and what they are doing, context, cost, quotas, prompt cache countdown, attached plan's position, off-plan. It is listed under Security and has no public popularity data yet.
| Type | Claude code mod |
|---|---|
| Author | BastienTeissier |
| Repository | BastienTeissier/watch-tower |
| Popularity | no public popularity data yet |
| Category | Security |
| Security | High risk (48/100) |
| Rank | #2,711 of 5,272 Claude Code mods; #312 in Security |
| Last commit | 2026-10-16 |
| Hooks | 12 events |
| Sees | classic hooks, every prompt, every tool call, subagent spawns |
| Draws on | AbovePrompt, Pane |
Is watch-tower safe to install?
watch-tower scores 48/100 on the MCPMods security check: High risk. Things to review: starts processes outside the sandbox; writes files or config; reads environment variables; watches every prompt or event. It passed 3 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 processes outside the sandbox | Review |
| 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 |
| No license detected | Note |
API calls in its code
| Call | What it means |
|---|---|
$.clock.every | |
$.clock.now | |
$.command.register | |
$.env.get | reads env vars |
$.fs.exists | reads files |
$.fs.read | reads files |
$.fs.stat | reads files |
$.fs.write | writes files |
$.process.run | runs processes |
$.session.cwd | |
$.session.id | |
$.session.root | |
$.state.get | |
$.state.set | |
$.store.delete | keeps its own state |
$.store.get | keeps its own state |
$.store.set | keeps its own state |
$.ui.ask | draws interface |
$.ui.open | draws interface |
$.ui.panes | draws interface |
$.ui.resolve | draws interface |
$.ui.toast | draws interface |
How do I install watch-tower?
- 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/BastienTeissier/watch-tower claude plugin validate ./watch-tower/mods/watch-tower
- Install it. Run this in your terminal, then /reload-plugins in an open session.
claude plugin marketplace add BastienTeissier/watch-tower && claude plugin install watch-tower@claude-code-mods
Or ask Claude to set it up
Paste this into Claude Code and it installs watch-tower for you:
Install the "watch-tower" Claude Code mod from https://github.com/BastienTeissier/watch-tower/tree/main/mods/watch-tower. Run claude plugin validate on it first and show me what it can access before you enable it.