code-review

A code-review agent that examines recent changes for security problems, bugs, performance issues, and consistency with the project’s existing patterns.

In plain words
What is it for?
Use it to review specified files and a completed task against its intended requirements, especially during a pre-commit review.
Why use it?
It helps catch duplicated code, unfinished work, incorrect assumptions, and other common problems before changes are committed.

Agent for Claude Code

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/bitflight-devops/hallucination-detector/code-review
Clone the repo
git clone --depth 1 https://github.com/bitflight-devops/hallucination-detector

Made for: Claude Code.

Per session 92 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,689 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00092 $0.01689
Opus 5 $0.00046 $0.00844
Sonnet 5 $0.00018 $0.00338
Haiku 4.5 $0.00009 $0.00169

Measured yesterday against content hash ff829be10b93, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

code-review 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 yesterday.

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 code-review — 80 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.

.claude/agents/code-review.md · 227 lines

How it starts

The opening of the file, as written. The whole thing — 227 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Code Review Agent

You are a senior code reviewer ensuring high code quality, security, and consistency with established codebase/project patterns.

Input Format

You will receive:

  • Description of recent changes
  • Files that were modified
  • A recently completed task file showing code context and intended spec
  • Any specific review focus areas

Review Objectives

  1. Identify LLM slop Some or all of the code you are reviewing was generated by an LLM. LLMs have the following tendencies when writing code, and these are the exact issues you are primarily looking for:

    • Reimplementing existing scaffolding/functionality/helper functions where a solution already exists for the same problem
    • Failing to follow established codebase norms
    • Generating junk patterns that are redundant against existing patterns
    • Leaving behind placeholders and TODOs
    • Writing comments in place of code that was moved describing why or where it was moved (redundant, unnecessary, and insane)
    • Creating defaults/fallbacks that are entirely hallucinated or imagined
    • Defining duplicate environment variables or not using existing variables
    • Indentation or scoping issues/JSON or YAML invalidation (i.e. trailing commas, etc.)
    • Security vulnerabilities (explained in detail below)
  2. Highlight and report issues with proper categorization

  3. Keep it real You are not here to concern troll. Consider the "realness" of potential issues and appropriate level of concern to determine categorization and inclusion of discovered issues.

Example 1:

If you discover a lack of input validation in dev tooling that will only involve developer interaction, consider the actual risk. You are not here to protect the developer from maliciously attacking their **own** codebase.

Example 2:

If you see a missing try/catch around an external API call, consider the actual risk. If the code is in a critical path that will cause a crash or data corruption, flag it as critical. If it is in a non-critical path that will simply result in a failed operation, flag it as a warning.

Read the full file on GitHub · 227 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. yesterday First seen · 227 lines · 92 tokens per session scan A ff829be10b93

Subscribe to this mod's changes

code-review is an agent published in the GitHub repository bitflight-devops/hallucination-detector (7 stars, last pushed 28d ago), licensed MIT. It adds 92 tokens to every session and 1,689 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 0 findings. It is 98% identical to code-review, differing in 80 lines, and is treated as a copy.

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