What is harness-fleet?
harness-fleet is a Claude Code mod by cdeust that the owner's interface to the plugin fleet: /fleet shows each owned plugin's installed and offered version, the repository's open PRs with their CI state and its open issues (defects first,. It is listed under Git & CI and has no public popularity data yet.
| Type | Claude code mod |
|---|---|
| Author | cdeust |
| Repository | cdeust/claude-mods |
| Popularity | no public popularity data yet |
| Category | Git & CI |
| Security | Review before installing (68/100) |
| Rank | #2,870 of 5,272 Claude Code mods; #216 in Git & CI |
| Last commit | 2026-10-17 |
| Hooks | 3 events |
| Sees | only the events it hooks |
| Draws on | Pane |
Is harness-fleet safe to install?
harness-fleet scores 68/100 on the MCPMods security check: Review before installing. Things to review: starts processes outside the sandbox; reads environment variables. It passed 4 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 no files or config | Pass |
| Reads environment variables | Review |
| Only sees the events it hooks | Pass |
| Drives Claude (model calls, prompts) | Note |
| Passes claude plugin validate | Pass |
| No license detected | Note |
API calls in its code
| Call | What it means |
|---|---|
$.clock.now | |
$.command.register | |
$.env.get | reads env vars |
$.fs.read | reads files |
$.process.run | runs processes |
$.prompt.submit | drives Claude |
$.state.get | |
$.state.set | |
$.ui.open | draws interface |
$.ui.resolve | draws interface |
$.ui.toast | draws interface |
How do I install harness-fleet?
- 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/cdeust/claude-mods claude plugin validate ./claude-mods/mods/harness-fleet
- Install it. Run this in your terminal, then /reload-plugins in an open session.
claude plugin marketplace add cdeust/claude-mods && claude plugin install harness-fleet@claude-mods
Or ask Claude to set it up
Paste this into Claude Code and it installs harness-fleet for you:
Install the "harness-fleet" Claude Code mod from https://github.com/cdeust/claude-mods/tree/main/mods/harness-fleet. Run claude plugin validate on it first and show me what it can access before you enable it.
More from cdeust/claude-mods
This repository has 8 Claude Code mods on MCPMods.
- cortex-cockpit: The harness cockpit, a viewer: the phase every agent is in (PHASES panel, and main and the running agents in the band ab (High risk)
- cortex-guard: Two rules no settings hook enforces, refused at the tool call: wiki pages and their generated ADR mirrors are written on (Review before installing)
- cortex-wiki: /wiki : compile a Cortex wiki page (Markdown with ```tikz blocks) to PDF through pandoc and xelatex, and open it. (Review before installing)
- mission-control: A graphical pane of the harness at work: every agent of the turn as a swimlane coloured by phase, bar height its effort, (Low risk)
- zetetic-autopilot: Automatic effort and model, and a quota that limits how many agents run, not how well one runs. Every request runs at th (Review before installing)
- zetetic-genius: Grades every request before its turn starts (task class → effort rung, in one low-effort completion) and routes it to th (Review before installing)
- zetetic-insights: The learning loop: every main turn is kept in a ledger across sessions (phase, effort, steps, failed tool calls, agents, (Review before installing)