What is test-grader?
test-grader is a Claude Code mod by MWEJ that a side pane that grades every test in the project (strong, shallow, brittle, hollow, duplicate), tells Claude how to write tests that grade strong, and shows coverage. It is listed under Interface and has no public popularity data yet.
| Type | Claude code mod |
|---|---|
| Author | MWEJ |
| Repository | MWEJ/test-grader |
| Popularity | no public popularity data yet |
| Category | Interface |
| Security | High risk (56/100) |
| Rank | #4,059 of 5,272 Claude Code mods; #1,681 in Interface |
| Last commit | 2026-10-09 |
| Hooks | 9 events |
| Sees | Bash calls, Edit calls, Write calls, every tool call, mcp__test-grader__test_context calls, mcp__test-grader__test_coverage calls, mcp__test-grader__test_evidence calls, mcp__test-grader__test_grade calls, mcp__test-grader__test_grades calls, mcp__test-grader__test_verify calls |
| Draws on | Pane |
Is test-grader safe to install?
test-grader scores 56/100 on the MCPMods security check: High risk. Things to review: starts processes outside the sandbox; writes files or config; reads environment variables. 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 |
| 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 |
|---|---|
$.agent.list | |
$.clock.after | |
$.clock.every | |
$.clock.now | |
$.command.register | |
$.env.get | reads env vars |
$.fs.list | reads files |
$.fs.read | reads files |
$.fs.stat | reads files |
$.fs.write | writes files |
$.model.complete | drives Claude |
$.process.run | runs processes |
$.prompt.suggest | writes the prompt box |
$.session.append | |
$.session.cwd | |
$.session.id | |
$.state.get | |
$.state.set | |
$.store.delete | keeps its own state |
$.store.get | keeps its own state |
$.store.keys | keeps its own state |
$.store.set | keeps its own state |
$.tool.list | |
$.tool.register | drives Claude |
$.ui.log | draws interface |
$.ui.open | draws interface |
$.ui.resolve | draws interface |
How do I install test-grader?
- 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/MWEJ/test-grader claude plugin validate ./test-grader/.
- Install it. Run this in your terminal, then /reload-plugins in an open session.
claude plugin marketplace add MWEJ/test-grader && claude plugin install test-grader@test-grader
Or ask Claude to set it up
Paste this into Claude Code and it installs test-grader for you:
Install the "test-grader" Claude Code mod from https://github.com/MWEJ/test-grader. Run claude plugin validate on it first and show me what it can access before you enable it.