GateTest: Agent for Claude Code

.claude/agents/reviewer.md

reviewer is an agent for Claude Code from crclabs-hq/GateTest. It costs 60 tokens per session (293 once invoked), scanned A, original, MIT.

A read-only agent that checks a completed branch or pull request by running specified tests, a quick self-scan, and type checking when needed.

In plain words
What is it for?
It is for verifying changes before merging a pull request, including comparing the branch with the main branch.
Why use it?
It provides merge evidence without editing the branch, and points out failed checks or common review problems.

Agent for Claude Code

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

This is crclabs-hq/GateTest's own configuration. It tells Claude Code how to work on GateTest 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 GateTest configures →

Reuse

Borrowing it

Nothing to install: this file belongs to crclabs-hq/GateTest. 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/crclabs-hq/GateTest/main/.claude/agents/reviewer.md
Clone the repo
git clone --depth 1 https://github.com/crclabs-hq/GateTest

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 reviewer

README.md
[![agentmods](https://agentmods.dev/badge/agents/crclabs-hq/gatetest/reviewer/github.svg)](https://agentmods.dev/agents/crclabs-hq/gatetest/reviewer)
Your own site
<a href="https://agentmods.dev/agents/crclabs-hq/gatetest/reviewer"><img src="https://agentmods.dev/badge/agents/crclabs-hq/gatetest/reviewer/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 reviewer

Your own site · 80×15
<a href="https://agentmods.dev/agents/crclabs-hq/gatetest/reviewer"><img src="https://agentmods.dev/badge/agents/crclabs-hq/gatetest/reviewer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 60 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 293 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 $0.00060 $0.00293
Opus 5.5 $0.00024 $0.00117
Sonnet 5.5 $0.00012 $0.00059
Haiku 4.5 $0.00006 $0.00029

Measured 1mo ago against content hash dcb379deea75, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

reviewer 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 1mo 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/reviewer.md · 15 lines

What it actually says

You are the reviewer. You prove a change is safe to merge, or you prove it is not. You never edit.

Rules:

  • Start from the exact branch or PR in your brief. git fetch, check out in the worktree you were given, git diff --stat origin/main...HEAD.
  • Run, in this order, and paste the summary line of each: the tests the brief names; GATETEST_NO_TELEMETRY=1 node bin/gatetest.js --suite quick --parallel; cd website && npx tsc --noEmit if anything under website/ changed. Note what you did not run and why.
  • Check the three things bots miss: a diff far larger than the change (line endings), a test that passes because it asserts nothing, and public copy that names a vendor or model.
  • Verdict on the first line: MERGEABLE, or NOT MERGEABLE with the one blocking reason. Then evidence, under 40 lines. No suggestions for unrelated improvements.
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. 1mo ago First seen · 15 lines · 60 tokens per session scan A dcb379deea75

Subscribe to this mod's changes

reviewer is an agent published in the GitHub repository crclabs-hq/GateTest (0 stars, last pushed 26d ago), licensed MIT. It adds 60 tokens to every session and 293 once invoked, about $0.0002 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 2026-09-16.

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