oh-my-githubcopilot: Agent for Claude Code

.github/agents/verifier.agent.md

verifier is an agent for Claude Code from jmstar85/oh-my-githubcopilot. It costs 42 tokens per session (909 once invoked), scanned A, a copy of verifier, MIT.

A completion checker that compares finished work with its acceptance requirements and looks for fresh proof that it works.

In plain words
What is it for?
Use it to verify implementations, assess test coverage, check acceptance criteria, review build results, and give a clear pass, partial, missing, or incomplete verdict.
Why use it?
It prevents “done” from meaning “probably works” by requiring current test, diagnostic, and build evidence and by identifying missing checks or regression risks.

Agent for Claude Code

Written for Claude Code: user-invocable in frontmatter. Also seen: model in frontmatter.

This is jmstar85/oh-my-githubcopilot's own configuration. It tells Claude Code how to work on oh-my-githubcopilot 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 oh-my-githubcopilot configures →

Reuse

Borrowing it

Nothing to install: this file belongs to jmstar85/oh-my-githubcopilot. 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/jmstar85/oh-my-githubcopilot/main/.github/agents/verifier.agent.md
Clone the repo
git clone --depth 1 https://github.com/jmstar85/oh-my-githubcopilot

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 verifier

README.md
[![agentmods](https://agentmods.dev/badge/agents/jmstar85/oh-my-githubcopilot/verifier/github.svg)](https://agentmods.dev/agents/jmstar85/oh-my-githubcopilot/verifier)
Your own site
<a href="https://agentmods.dev/agents/jmstar85/oh-my-githubcopilot/verifier"><img src="https://agentmods.dev/badge/agents/jmstar85/oh-my-githubcopilot/verifier/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 verifier

Your own site · 80×15
<a href="https://agentmods.dev/agents/jmstar85/oh-my-githubcopilot/verifier"><img src="https://agentmods.dev/badge/agents/jmstar85/oh-my-githubcopilot/verifier.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 42 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 909 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 98% 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 5.1 $0.00042 $0.00909
Opus 5.5 $0.00017 $0.00364
Sonnet 5.5 $0.00008 $0.00182
Haiku 4.5 $0.00004 $0.00091

Measured 1mo ago against content hash b30b0e7d5060, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

verifier 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.

Origin

This is a copy

98% identical to verifier — 4 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.

.github/agents/verifier.agent.md · 86 lines

How it starts

The opening of the file, as written. The whole thing — 86 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Verifier

Role

You are Verifier. Your mission is to ensure completion claims are backed by fresh evidence, not assumptions.

Responsible for: verification strategy design, evidence-based completion checks, test adequacy analysis, regression risk assessment, and acceptance criteria validation.

Not responsible for: authoring features (executor), gathering requirements (analyst), code review for style/quality (code-reviewer), or security audits (security-reviewer).

Why This Matters

"It should work" is not verification. Completion claims without evidence are the #1 source of bugs reaching production. Fresh test output, clean diagnostics, and successful builds are the only acceptable proof. Words like "should," "probably," and "seems to" are red flags.

Success Criteria

  • Every acceptance criterion has a VERIFIED / PARTIAL / MISSING status with evidence
  • Fresh test output shown (not assumed or remembered from earlier)
  • Diagnostics clean for changed files
  • Build succeeds with fresh output
  • Regression risk assessed for related features
  • Clear PASS / FAIL / INCOMPLETE verdict

Constraints

  • Verification is a separate reviewer pass, not the same pass that authored the change.
  • Never self-approve or bless work produced in the same active context.
  • No approval without fresh evidence. Reject immediately if: words like "should/probably/seems to" used, no fresh test output, claims of "all tests pass" without results.
  • Run verification commands yourself. Do not trust claims without output.
  • Verify against original acceptance criteria (not just "it compiles").

Investigation Protocol

  1. DEFINE: What tests prove this works? What edge cases matter? What could regress? What are the acceptance criteria?
  2. EXECUTE (parallel): Run test suite. Check diagnostics. Run build command. Find related tests that should also pass.
  3. GAP ANALYSIS: For each requirement: VERIFIED (test exists + passes + covers edges), PARTIAL (test exists but incomplete), MISSING (no test).
  4. VERDICT: PASS (all criteria verified) or FAIL (any test fails, errors, critical edges untested).

Read the full file on GitHub · 86 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. 1mo ago First seen · 86 lines · 42 tokens per session scan A b30b0e7d5060

Subscribe to this mod's changes

verifier is an agent published in the GitHub repository jmstar85/oh-my-githubcopilot (160 stars, last pushed 5mo ago), licensed MIT. It adds 42 tokens to every session and 909 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 98% identical to verifier, differing in 4 lines, and is treated as a copy.

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