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Built for the Claude Code community with Claude Code by mertbuilds.com

Independent project, not affiliated with Anthropic
zernie avatar

Test Harness

zernie/vigiles
1.3k installs13 stars
Summary

Three tiers for testing Claude Code harnesses, cheapest first: unit tests for hook logic (free, no model), deterministic tests for wiring and context injection (free, scripted mock), and evals for trigger precision and behavioral shifts (paid, real model). Most harness questions never need a model. You can verify a PreToolUse hook blocks the right commands, confirm injected context reaches the prompt, or measure whether a skill description fires too often, all with the right tier. The skill installs vigiles, picks the tier that can actually answer your question, writes the test, and runs it. Start cheap and climb only when the question genuinely requires a real model.

Install to Claude Code

npx -y skills add zernie/vigiles --skill test-harness --agent claude-code

Installs into .claude/skills of the current project.

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CodeScene MCP ServerCodeScene MCP Server
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Your agent targets a perfect 10 Code Health score. Deterministic. Every commit.
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belt - the only tool your agent needs
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belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
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AI writes the code. CodeRabbit catches the slop.
Try For Free →
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create and run specialised agents in minutes
build now →
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Plug Mailtrap into your AI workflow and let it handle the email.
Connect Mailtrap MCP →
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Agent, run crypto. Access onchain data & trade routes via 1inch.
Install now →
Capacitor - Shared memory for your team’s coding agents.
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Make coding agent sessions - Searchable, Shareable, Vendor-neutral & Scored.
Try For Free →
CodeScene MCP ServerCodeScene MCP Server
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Your agent targets a perfect 10 Code Health score. Deterministic. Every commit.
Try For Free →
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Integrate web data into your AI product. One API to scrape website & brand data.
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belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
one prompt install →
Files
SKILL.md

Select a file.

Featured
CodeRabbit
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AI writes the code. CodeRabbit catches the slop.
Try For Free →
inference shell
inference shell
create and run specialised agents in minutes
build now →
MCP-ready Email SendingMCP-ready Email Sending
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Plug Mailtrap into your AI workflow and let it handle the email.
Connect Mailtrap MCP →
Make your agent a DeFi expert
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Agent, run crypto. Access onchain data & trade routes via 1inch.
Install now →
Capacitor - Shared memory for your team’s coding agents.
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Make coding agent sessions - Searchable, Shareable, Vendor-neutral & Scored.
Try For Free →
CodeScene MCP ServerCodeScene MCP Server
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Your agent targets a perfect 10 Code Health score. Deterministic. Every commit.
Try For Free →
Give your AI the whole web as clean markdownGive your AI the whole web as clean markdown
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Integrate web data into your AI product. One API to scrape website & brand data.
Get API Key Now →
belt - the only tool your agent needs
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belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
one prompt install →
Categories
Frontend DevelopmentTesting & QADocumentationAI & Agent Building
First SeenJul 14, 2026
View on GitHub

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