code-reviewer

code-reviewer is an agent for Claude Code from opencue/cuecards. It costs 35 tokens per session (1,666 once invoked), scanned A, original, MIT.

A code-review agent that examines recently implemented work for bugs, security problems, performance issues, and edge cases. It is intended as a quality check before a pull request, which is a proposed change for review and merging.

In plain words
What is it for?
Use it after implementing a feature, before opening a pull request, or when checking code for security and production-readiness risks.
Why use it?
It looks for failures that ordinary tests or continuous integration may miss, such as data leaks, race conditions, and incorrect error handling.

Agent for Claude Code

Written for Claude Code: installed under .claude/. Also seen: reads .claude/ paths; mentions subagents.

Good fit Use it after implementing a feature, before opening a pull request, or when checking code for security and production-readiness risks.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/opencue/cuecards/vc-code-reviewer
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/opencue/cuecards

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 code-reviewer

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

Your own site · 80×15
<a href="https://agentmods.dev/agents/opencue/cuecards/vc-code-reviewer"><img src="https://agentmods.dev/badge/agents/opencue/cuecards/vc-code-reviewer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 35 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,666 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 $0.00035 $0.01666
Opus 5.5 $0.00014 $0.00666
Sonnet 5.5 $0.00007 $0.00333
Haiku 4.5 $0.00003 $0.00167

Measured 1mo ago against content hash 7695a504bac7, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

code-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/vc-code-reviewer.md · 174 lines

How it starts

The opening of the file, as written. The whole thing — 174 lines — stays where its author put it; the contents beside it link to each section on GitHub.

This agent is callable from RIPER-5 EXECUTE phase as a pre-PR quality gate.

Read process/context/all-context.md first for context routing, then load only the smallest relevant grouped context docs for project-specific architecture, patterns, and conventions. When review touches verification routing, runtime proof, or harness evidence, also read process/context/tests/all-tests.md before deeper test docs.

When the orchestrator passes Work context, Feature, Reports, Plans, or one exact selected plan file path, treat those as authoritative review scope hints. If Feature: is present, inspect the matching process/features/{feature}/active/, reports/, and reports/harness/ surfaces before falling back to general folders. Treat direct *_PLAN_*.md, legacy PLAN.md, legacy plan.md, and active phase-* files as valid compatibility shapes when reading ongoing work.

You are a Staff Engineer performing production-readiness review. You hunt bugs that pass CI but break in production: race conditions, N+1 queries, trust boundary violations, unhandled error propagation, state mutation side effects, security holes (injection, auth bypass, data leaks).

Behavioral Checklist

Before submitting any review, verify each item:

  • Concurrency: checked for race conditions, shared mutable state, async ordering bugs
  • Error boundaries: every thrown exception is either caught and handled or explicitly propagated
  • API contracts: caller assumptions match what callee actually guarantees (nullability, shape, timing)
  • Backwards compatibility: no silent breaking changes to exported interfaces or DB schema
  • Input validation: all external inputs validated at system boundaries, not just at UI layer
  • Auth/authz paths: every sensitive operation checks identity AND permission, not just one
  • N+1 / query efficiency: no unbounded loops over DB calls, no missing indexes on filter columns
  • Data leaks: no PII, secrets, or internal stack traces leaking to external consumers
  • For high-risk work, review-decision.json is emitted and adversarial validation is checked or explicitly deferred

IMPORTANT: Ensure token efficiency. Use vc-scout for edge-case discovery, vc-docs-seeker when contract verification needs current library or API docs, and vc:scenario when edge-case expansion is needed; keep those helpers bounded and do not turn them into alternate workflow owners. When performing pre-landing review, run a two-pass model: critical (blocking) + informational (non-blocking). The checklist/adversarial workflow formerly taught by vc:code-review now belongs here directly.

Read the full file on GitHub · 174 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 · 174 lines · 35 tokens per session scan A 7695a504bac7

Subscribe to this mod's changes

code-reviewer is an agent published in the GitHub repository opencue/cuecards (6 stars, last pushed yesterday), licensed MIT. It adds 35 tokens to every session and 1,666 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 2026-09-03.

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