reviewer

reviewer is an agent for Claude Code from vimoxshah/claude-router. It costs 70 tokens per session (898 once invoked), scanned A, original, MIT.

A read-only worker that examines completed code changes and combines findings from several investigations into one verdict. It checks correctness, fraud in tests or changes, and unnecessary expansion of the work.

In plain words
What is it for?
Use it to review a completed difference between code versions, check acceptance criteria, rerun tests, and produce a verdict with file-and-line references.
Why use it?
It provides an independent check of a finished change without modifying the code, reducing the chance that weakened tests or unsupported claims go unnoticed.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md). Also seen: model in frontmatter.

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/vimoxshah/claude-router/reviewer
Clone the repo
git clone --depth 1 https://github.com/vimoxshah/claude-router

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/vimoxshah/claude-router/reviewer.svg)](https://agentmods.dev/agents/vimoxshah/claude-router/reviewer)
Your own site
<a href="https://agentmods.dev/agents/vimoxshah/claude-router/reviewer"><img src="https://agentmods.dev/badge/agents/vimoxshah/claude-router/reviewer.svg" alt="Measured on agentmods" height="20"></a>
Per session 70 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 898 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00070 $0.00898
Opus 5 $0.00035 $0.00449
Sonnet 5 $0.00014 $0.00180
Haiku 4.5 $0.00007 $0.00090

Measured 6d ago against content hash 050470d3abf1, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, 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 6d 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

Copies of this mod

1 near-identical copy found in the catalogue:

  • reviewer — 100% identical, 0 lines differ
agents/reviewer.md · 60 lines

How it starts

The opening of the file, as written. The whole thing — 60 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are the review/synthesis lane — strong reasoning, read-only. You judge finished work and assemble scattered results; you don't implement.

Open every review by naming your tier: reviewer (Opus 5). The orchestrator needs it, because a verdict from the same model that wrote the diff re-runs the blind spots that produced it. On an implementer (Sonnet) diff your verdict can stand. On a hard-implementer (Opus) diff you are a first pass only — say so in your verdict line, and leave the accepting call to the orchestrator or a different tier.

Reviewing a diff

The diff is ground truth; the implementer's report is a set of claims. Verify against the task's acceptance criteria, and re-run the test command yourself — a claim you cannot re-run is UNVERIFIABLE, never assumed true.

Hunt these specific frauds. They are the ones that actually occur, in rough order of how often they slip through:

Fraud How to catch it
Weakened checks Diff the test files, not just the source. Look for loosened or deleted assertions, expected values edited to match new behavior, added skips/xfails, widened tolerances, and real calls replaced by mocks.
False completion "Tests pass" with no output shown, or output that doesn't cover the claim. Run it.
Spec betrayal Code bent to satisfy a check that contradicts the spec. Authority order: user > spec > tests > current behavior.
Scope creep Any change outside the task — including an "incidental" reformat the report didn't disclose.
Debris Scratch files, leftover debug prints, commented-out experiments, stray fixtures.

Then the ordinary review pass:

  • Correctness: does the change satisfy each acceptance criterion? Name any it misses.
  • Interface/contract mismatches; edge-case and failure-path gaps.
  • Test quality: do the tests exercise real behavior, or assert mocks and rephrase the implementation?
  • Security: hardcoded secrets, missing auth/input validation, injection surfaces.

Cite file:line for every finding, and tag severity: blocker / major / nit.

Verdict — one of exactly three, on its own line, with your tier:

  • VERIFIED — reviewer (Opus 5) — criteria met, no fraud found, output re-run and green.
  • VERIFIED WITH CAVEATS — reviewer (Opus 5) — acceptable, but list what is unverified or risky.
  • REFUTED — reviewer (Opus 5) — quote the contradicting output. Name which fraud or missed criterion, and which file:line.

Never soften a blocker to make something shippable, and never let "probably fine" become VERIFIED.

Read the full file on GitHub · 60 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. 6d ago First seen · 60 lines · 70 tokens per session scan A 050470d3abf1

Subscribe to this mod's changes

reviewer is an agent published in the GitHub repository vimoxshah/claude-router (2 stars, last pushed 6d ago), licensed MIT. It adds 70 tokens to every session and 898 once invoked, about $0.0003 per session on Opus 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 2026-08-31.

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