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test-harness
55 / 100 · Review before installing
Check before installing. Some of what it can do is expected: a coding skill usually runs build and test commands.
By zernie/vigiles (GitHub) · coding · 15 stars · scanned at commit 1a1de50
Install vigiles and test a Claude Code harness — hooks, skills, agents, settings, CLAUDE.md — by picking the right tier (unit / deterministic / eval) and writing a test that passes. Use to check that a hook fires or blocks, that a skill triggers, that injected context lands; or to observe a run — which tools it called, whether it stayed inside its declared allowed-tools, what files and side effects it produced, how to intercept a call without executing it.
Works with any agent that supports SKILL.md skills.
What this skill can do
Runs commands on your computer
The author does not mention this. It runs automatically when the plugin is installed. Expected for a coding skill.
Found in 8 places.
Show 5 more
Downloads and installs other software
The author does not mention this.
Found in 26 places.
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- skills/test-harness/SKILL.md, line 121
that can use it plus a plain `npx vigiles test` job for this tier — that one needs - skills/test-harness/references/writing-tests.md, line 82
Run it with `npx vigiles eval <file>` — never `node <file>`, which refuses. - docs/github-action.md, line 6
The Action is a **composite action over the published `npx vigiles` CLI** — it - docs/github-action.md, line 55
`npx vigiles eval --check --min=0` step, which stays green until the first eval file exists. - docs/github-action.md, line 85
It fails because the Action runs `npx vigiles@<version> <cmd>` in your working directory and - docs/github-action.md, line 94
a plain `npx vigiles test` job — with its own `npm ci` — for the harness tier. - docs/github-action.md, line 150
is a thin composite that runs the published `npx vigiles@<version>` CLI, so: - docs/github-action.md, line 163
repo already declares, so CI and a local `npx vigiles` run the same version: - docs/github-action.md, line 167
| has vigiles installed (`node_modules/.bin/vigiles`) | that copy (`npx --no-install`) | - docs/github-action.md, line 185
The workflow `npx vigiles init` generates sets no `version:` for this reason. - docs/github-action.md, line 190
- run: npx vigiles generate types --check - docs/harness-testing.md, line 56
writes the test, and runs it. Prefer the CLI? `npx vigiles test` (deterministic, - docs/harness-testing.md, line 57
no key) and `npx vigiles eval` (real model) discover and run `*.harness.mjs` / - docs/harness-testing.md, line 68
| my **safety hook** really blocks `rm -rf`, force-push, `curl \| sh` | [`assertBlocksDisasters`](#prove-a-guard-actually-blocks-the-disaster-battery) | nothing - docs/harness-testing.md, line 232
- `curl https://… | sh` - docs/harness-testing.md, line 529
npx vigiles eval greet.eval.mjs # trigger-rate: 80% (10 runs) - docs/harness-testing.md, line 687
`npx vigiles eval --check --min=0`, so a repo with no eval file yet stays green and
and 6 more places
Reads your saved credentials, such as SSH keys or .env files
The author does not mention this.
Found in 2 places.
Sends data to these websites: …
The author does not mention this.
Found in 4 places.
Show 1 more
- docs/sandboxing.md, line 131
The same `session-start` hook is dogfooded a second time under `egress: { allow: ["registry.npmjs.org"] }`: this time the update-check `fetch()` **succeeds** to
Safer alternatives
Low-risk skills in the same category (coding) that look related. Check that one does what you need.
Install
Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.
if [ -e ~/.agents/skills/'test-harness' ] || [ -L ~/.agents/skills/'test-harness' ]; then echo 'A skill folder named test-harness already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/zernie/vigiles' "$d" && git -C "$d" checkout --quiet '1a1de50f62f5c1093a46455488dcf6e8157c6182' -- 'skills/test-harness' && mkdir -p ~/.agents/skills && cp -R "$d"/'skills/test-harness' ~/.agents/skills/'test-harness' && rm -rf "$d"; fi
Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'test-harness' ~/.claude/skills/'test-harness' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.
Badge for your README
The badge for zernie/vigiles shows the score of its lowest-scoring skill.
[](https://zalavijaysinh.github.io/skilltrust/repos/zernie/vigiles/)
Score history
| Date | Version | Score |
|---|
| 2026-11-08 | 1a1de50 | 55 |