What is spotcheck?
spotcheck is a Claude Code mod by ivanvyd that checks the files, line numbers and symbols a subagent cites before Claude repeats the report. It is listed under Agents & automation and has no public popularity data yet.
| Type | Claude code mod |
|---|---|
| Author | ivanvyd |
| Repository | ivanvyd/ground-rules |
| Popularity | no public popularity data yet |
| Category | Agents & automation |
| Security | Review before installing (76/100) |
| Rank | #3,487 of 5,272 Claude Code mods; #269 in Agents & automation |
| License | MIT |
| Last commit | 2026-10-04 |
| Hooks | 6 events |
| Sees | Agent calls, classic hooks |
| Draws on | Pane |
Is spotcheck safe to install?
spotcheck scores 76/100 on the MCPMods security check: Review before installing. Things to review: starts processes outside the sandbox; reads environment variables. It passed 6 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 |
| 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.now | |
$.command.register | |
$.env.get | reads env vars |
$.fs.exists | reads files |
$.fs.read | reads files |
$.fs.stat | reads files |
$.process.run | runs processes |
$.session.root | |
$.state.get | |
$.state.set | |
$.store.get | keeps its own state |
$.store.set | keeps its own state |
$.ui.log | draws interface |
$.ui.open | draws interface |
$.ui.resolve | draws interface |
How do I install spotcheck?
- 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/ivanvyd/ground-rules claude plugin validate ./ground-rules/plugins/spotcheck
- Install it. Run this in your terminal, then /reload-plugins in an open session.
claude plugin marketplace add ivanvyd/ground-rules && claude plugin install spotcheck@ground-rules
Or ask Claude to set it up
Paste this into Claude Code and it installs spotcheck for you:
Install the "spotcheck" Claude Code mod from https://github.com/ivanvyd/ground-rules/tree/main/plugins/spotcheck. Run claude plugin validate on it first and show me what it can access before you enable it.
More from ivanvyd/ground-rules
This repository has 5 Claude Code mods on MCPMods.
- lights-out: Shows the background tasks this session left running and how much memory is free. Stops only what it started. (Review before installing)
- save-point: Saves uncommitted work a moment before a command erases it. /save-point brings it back. (Review before installing)
- stay-put: Bounces `cd dir && …` before it runs and gives Claude the one-command form. (Low risk)
- wake-me: Claude ends its turn instead of polling. You watch the progress bar, and the mod wakes Claude when the file is ready. (Low risk)