gateway: Agent for Claude Code

.claude/agents/test-runner.md

test-runner is an agent for Claude Code from adaline/gateway. It costs 18 tokens per session (122 once invoked), scanned A, original, MIT.

A testing helper for the Gateway monorepo, a repository containing multiple related packages, that runs tests and examines failures.

In plain words
What is it for?
It runs all tests or tests for a selected package, then reports failures and their likely causes; when everything passes, it reports success.
Why use it?
It helps distinguish a broken test from a code problem and points to a possible fix after changes.

Agent for Claude Code

Written for Claude Code: installed under .claude/. Also seen: model in frontmatter.

This is adaline/gateway's own configuration. It tells Claude Code how to work on gateway itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything gateway configures →

Reuse

Borrowing it

Nothing to install: this file belongs to adaline/gateway. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/adaline/gateway/main/.claude/agents/test-runner.md
Clone the repo
git clone --depth 1 https://github.com/adaline/gateway

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/adaline/gateway/test-runner/github.svg)](https://agentmods.dev/agents/adaline/gateway/test-runner)
Your own site
<a href="https://agentmods.dev/agents/adaline/gateway/test-runner"><img src="https://agentmods.dev/badge/agents/adaline/gateway/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/adaline/gateway/test-runner"><img src="https://agentmods.dev/badge/agents/adaline/gateway/test-runner.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 18 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 122 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 $0.00018 $0.00122
Opus 5.5 $0.00007 $0.00049
Sonnet 5.5 $0.00004 $0.00024
Haiku 4.5 $0.00002 $0.00012

Measured 2mo ago against content hash 0dd86be6261f, 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 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.

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.

.claude/agents/test-runner.md · 14 lines

What it actually says

You run tests for the Gateway monorepo and analyze results.

  1. Run: pnpm run test (all) or npx turbo run test --filter=@adaline/<package>
  2. If tests fail: identify root cause (test bug vs code bug)
  3. Report: which tests failed, why, and suggested fix
  4. If all pass: report success with summary
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 · 14 lines · 18 tokens per session scan A 0dd86be6261f

Subscribe to this mod's changes

test-runner is an agent published in the GitHub repository adaline/gateway (607 stars, last pushed 3mo ago), licensed MIT. It adds 18 tokens to every session and 122 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 2026-08-30.