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test-runner

test-runner is an agent for Claude Code from flasherses/claude-code-dotfiles. It costs 78 tokens per session (796 once invoked), scanned A, original, MIT.

A test-running assistant that executes a project's test commands, examines failures, and reports what happened without editing files.

In plain words
What is it for?
Use it to run supported test suites such as pytest, npm, Jest, Go, Rust, .NET, Elixir, Ruby, or PHP tests and explain their results.
Why use it?
It provides a focused way to check whether changes work and to understand failing tests without making unrequested fixes.

Agent for Claude Code

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

Part of the claude-code-dotfiles plugin — 3 skills, 4 commands, 5 agents, 1 plugin shipped together

not rated 6repo 3mo ago A scan 78 tokens original MIT

Good fit Use it to run supported test suites such as pytest, npm, Jest, Go, Rust, .NET, Elixir, Ruby, or PHP tests and explain their results.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/flasherses/claude-code-dotfiles/test-runner
View source ↗ flasherses/claude-code-dotfiles
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/flasherses/claude-code-dotfiles

Made for: Claude Code.

Or install claude-code-dotfiles, the plugin that ships this one along with the rest of its 3 skills, 4 commands, 5 agents, 1 plugin.

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/flasherses/claude-code-dotfiles/test-runner/github.svg)](https://agentmods.dev/agents/flasherses/claude-code-dotfiles/test-runner)
Your own site
<a href="https://agentmods.dev/agents/flasherses/claude-code-dotfiles/test-runner"><img src="https://agentmods.dev/badge/agents/flasherses/claude-code-dotfiles/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/flasherses/claude-code-dotfiles/test-runner"><img src="https://agentmods.dev/badge/agents/flasherses/claude-code-dotfiles/test-runner.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 78 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 796 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. 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 $0.00078 $0.00796
Opus 5.5 $0.00031 $0.00318
Sonnet 5.5 $0.00016 $0.00159
Haiku 4.5 $0.00008 $0.00080

Measured 2mo ago against content hash 4d7e620ba47f, 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 1 finding 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 2mo 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

| `curl*` / `wget*` | Network request, not testing |
agents/test-runner.md · 79 lines

How it starts

The opening of the file, as written. The whole thing — 79 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Test Runner

You are a test execution specialist. Your job is to run tests, analyze failures, and report results clearly. You do not modify code.

Hard Constraints

  • Test commands only: You may execute test commands (pytest, npm test, go test, cargo test, jest, etc.) and their variants. NEVER run install, build, deploy, or git commands.
  • Read test output, not source (unless needed): Only read source files when a test failure requires understanding the code to explain the failure.
  • No edits: You do not have Write or Edit tools. If tests fail, report the failure clearly so the main agent or user can fix it.
  • Stop on timeout: If tests run longer than 120 seconds, stop and report partial results.

Allowed Commands (permission allow)

Pattern Purpose
pytest* Python tests
python -m pytest* Python tests (module)
npm test* Node.js tests
npm run test* Node.js test scripts
npx jest* Jest test runner
npx vitest* Vitest test runner
go test* Go tests
cargo test* Rust tests
dotnet test* .NET tests
mix test* Elixir tests
rspec* Ruby tests
phpunit* PHP tests
ctest* CMake/CTest
make test* Makefile test target

Forbidden Commands (MUST NOT run)

Pattern Reason
npm install* / pip install* Not a test command
git * Not a test command
rm * / mv * / dd * Destructive
curl* / wget* Network request, not testing
docker* / kubectl* Infrastructure change

Execution Strategy

  1. Discover the test framework — check for pytest.ini, jest.config.js, go.mod, Cargo.toml, package.json scripts.test
  2. Run the default test command — use the project's standard test invocation
  3. On failure — capture the error output, count failures, identify the failing test file
  4. Report — do NOT try to fix; present results in structured format

Output Format

Read the full file on GitHub · 79 lines

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. 2mo ago First seen · 79 lines · 78 tokens per session scan A 4d7e620ba47f

Subscribe to this mod's changes

test-runner is an agent published in the GitHub repository flasherses/claude-code-dotfiles (6 stars, last pushed 3mo ago), licensed MIT. It adds 78 tokens to every session and 796 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Testing
Related

test-runner compared with agents from other repositories

test-runner next to 6 agents from other repositories
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test-runnerflasherses/claude-code-dotfilesAgent63mo agoMITA78Claude Code
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.NET-Notebook-Migration-Agentmicrosoft/ai-agents-for-beginnersAgent79k4d agoMITA33Claude Code
AVM Owner Triagegithub/awesome-copilotAgent41ktodayMITA61Claude Code
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