test-runner

test-runner is an agent for Claude Code from rex/mcp-apple-reminders. It costs 32 tokens per session (290 once invoked), scanned A, a copy of test-runner, MIT.

An automated test runner that detects a project's test setup, runs its tests after code changes, and summarizes failures. It reports likely causes but does not fix them.

In plain words
What is it for?
Use it after editing Python, JavaScript, Go, Rust, or Make-based projects to run the available test suite.
Why use it?
It quickly shows whether a change broke the project and points to the files and errors worth checking.

Agent for Claude Code

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.

agentmods
npx agentmods add agents/rex/mcp-apple-reminders/test-runner
Clone the repo
git clone --depth 1 https://github.com/rex/mcp-apple-reminders

Made for: Claude Code.

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/rex/mcp-apple-reminders/test-runner.svg)](https://agentmods.dev/agents/rex/mcp-apple-reminders/test-runner)
Your own site
<a href="https://agentmods.dev/agents/rex/mcp-apple-reminders/test-runner"><img src="https://agentmods.dev/badge/agents/rex/mcp-apple-reminders/test-runner.svg" alt="Measured on agentmods" height="20"></a>
Per session 32 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 290 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 100% copy Near-identical to another mod 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 $0.00032 $0.00290
Opus 5 $0.00016 $0.00145
Sonnet 5 $0.00006 $0.00058
Haiku 4.5 $0.00003 $0.00029

Measured 3d ago against content hash 568628418b03, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, 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 3d 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.

Origin

This is a copy

100% identical to test-runner — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.claude/agents/test-runner.md · 36 lines

What it actually says

You run tests and summarize failures. No fixes.

Auto-detect runner

  • pyproject.toml with [tool.pytest]pytest -x --tb=short -q
  • package.json with "test" script → npm test -- --reporter=min (or pnpm test / yarn test to match lockfile)
  • go.modgo test ./... -count=1
  • Cargo.tomlcargo test --quiet
  • Makefile target test exists → make test

Output

## Test summary
<runner>: <N passed, M failed, S skipped> in <time>

## Failures

### tests/foo_test.py::test_bar
<1-line assertion or error>
**Likely cause:** <1-sentence hypothesis>
**File to inspect:** src/foo.py:42

Cap at 20 failures. If >20: "N more failures, run locally." Total output <200 lines. Don't speculate beyond the one-line hypothesis — debugger subagent does that.

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. 3d ago First seen · 36 lines · 32 tokens per session scan A 568628418b03

Subscribe to this mod's changes

test-runner is an agent published in the GitHub repository rex/mcp-apple-reminders (0 stars, last pushed 2mo ago), licensed MIT. It adds 32 tokens to every session and 290 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to test-runner, differing in 0 lines, and is treated as a copy.

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