What is harness-scope?
harness-scope is a Claude Code mod by shimo4228 that turn global skills, rules, agents and tools on or off per repo with named profiles. It is listed under Agents & automation and has 3 GitHub stars.
| Type | Claude code mod |
|---|---|
| Author | shimo4228 |
| Repository | shimo4228/harness-scope |
| Popularity | 3 GitHub stars |
| Category | Agents & automation |
| Security | Low risk (100/100) |
| Rank | #1,001 of 5,272 Claude Code mods; #90 in Agents & automation |
| License | MIT |
| Last commit | 2026-10-09 |
| Stars this week | +1 |
| Hooks | 8 events |
| Sees | classic hooks, every tool call, the system prompt |
| Draws on | nothing |
Is harness-scope safe to install?
harness-scope scores 100/100 on the MCPMods security check: Low risk. No checks raised a concern. It passed 8 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 no files or config | Pass |
| Doesn't read environment variables | Pass |
| Only sees the events it hooks | Pass |
| 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 |
|---|---|
$.command.register | |
$.fs.exists | reads files |
$.fs.read | reads files |
$.session.repo | |
$.session.root | |
$.session.surfaces | |
$.session.usage | |
$.ui.log | draws interface |
$.ui.status | draws interface |
How do I install harness-scope?
- 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/shimo4228/harness-scope claude plugin validate ./harness-scope/plugin
- Install it. Run this in your terminal, then /reload-plugins in an open session.
claude plugin marketplace add shimo4228/harness-scope && claude plugin install harness-scope@harness-scope
Or ask Claude to set it up
Paste this into Claude Code and it installs harness-scope for you:
Install the "harness-scope" Claude Code mod from https://github.com/shimo4228/harness-scope/tree/main/plugin. Run claude plugin validate on it first and show me what it can access before you enable it.