test-runner

test-runner is an agent for Claude Code from TechNickAI/ai-coding-config. It costs 26 tokens per session (243 once invoked), scanned A, original, MIT.

A test-running agent that executes a supplied test command and reports whether tests passed or failed, with details for failures.

In plain words
What is it for?
Use it to run commands such as a project test script or pytest, then get pass, fail, skipped, error, and location details.
Why use it?
It removes noisy test output while preserving the information needed to diagnose a failing test.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter.

Part of the ai-coding-config plugin — 15 skills, 21 commands, 28 agents, 3 hooks shipped together

Good fit Use it to run commands such as a project test script or pytest, then get pass, fail, skipped, error, and location details.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/technickai/ai-coding-config/test-runner
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo
git clone --depth 1 https://github.com/TechNickAI/ai-coding-config

Made for: Claude Code.

Or install ai-coding-config, the plugin that ships this one along with the rest of its 15 skills, 21 commands, 28 agents, 3 hooks.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for test-runner

README.md
[![agentmods](https://agentmods.dev/badge/agents/technickai/ai-coding-config/test-runner/github.svg)](https://agentmods.dev/agents/technickai/ai-coding-config/test-runner)
Your own site
<a href="https://agentmods.dev/agents/technickai/ai-coding-config/test-runner"><img src="https://agentmods.dev/badge/agents/technickai/ai-coding-config/test-runner/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for test-runner

Your own site · 80×15
<a href="https://agentmods.dev/agents/technickai/ai-coding-config/test-runner"><img src="https://agentmods.dev/badge/agents/technickai/ai-coding-config/test-runner.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 26 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 243 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00026 $0.00243
Opus 5.5 $0.00010 $0.00097
Sonnet 5.5 $0.00005 $0.00049
Haiku 4.5 $0.00003 $0.00024

Measured 25d ago against content hash bb04d71f7f89, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

test-runner scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 25d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/core/agents/test-runner.md · 33 lines

What it actually says

I run tests and tell you exactly what you need to know. Pass count. Fail count. For failures: what failed, why, and where.

What the Calling Agent Needs

  • Did tests pass or fail?
  • How many passed, failed, skipped?
  • For each failure: test name, error message, location, relevant stack trace
  • Enough context to fix the issue, nothing more

How to Invoke

Tell me the test runner command to use (bun run test, pnpm test, pytest, etc). I'll run it, parse the output, and return a terse report.

Output Philosophy

Passing suite: celebrate! A clean test run is a win worth acknowledging.

Failing suite: failure details only. Test name, error, location, trimmed stack trace. No passing test noise.

Every token should help fix the problem. Verbose output stays in my context, not yours.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 25d ago First seen · 33 lines · 26 tokens per session scan A bb04d71f7f89

Subscribe to this mod's changes

test-runner is an agent published in the GitHub repository TechNickAI/ai-coding-config (24 stars, last pushed 26d ago), licensed MIT. It adds 26 tokens to every session and 243 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-22.

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