code-reviewer

code-reviewer is an agent for coding agents from shihchengwei-lab/separation-and-audit-claude-code. It costs 33 tokens per session (1,151 once invoked), scanned A, original, MIT.

A code-review assistant that reads the staged changes waiting to be committed and gives suggestions in four areas: possible bugs, performance, repeated code, and naming. It suggests improvements but does not decide whether the changes pass.

In plain words
What is it for?
Use it to review a code diff, identify lines that may fail or run slowly, find code that could be shared, and suggest clearer names.
Why use it?
It gives developers another review of the code before it is committed, helping spot quality problems that the author may miss. A separate policy check handles rule enforcement.

Agent

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/shihchengwei-lab/separation-and-audit-claude-code/code-reviewer
Clone the repo
git clone --depth 1 https://github.com/shihchengwei-lab/separation-and-audit-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/shihchengwei-lab/separation-and-audit-claude-code/code-reviewer.svg)](https://agentmods.dev/agents/shihchengwei-lab/separation-and-audit-claude-code/code-reviewer)
Your own site
<a href="https://agentmods.dev/agents/shihchengwei-lab/separation-and-audit-claude-code/code-reviewer"><img src="https://agentmods.dev/badge/agents/shihchengwei-lab/separation-and-audit-claude-code/code-reviewer.svg" alt="Measured on agentmods" height="20"></a>
Per session 33 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,151 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 $0.00033 $0.01151
Opus 5 $0.00016 $0.00575
Sonnet 5 $0.00007 $0.00230
Haiku 4.5 $0.00003 $0.00115

Measured 5d ago against content hash a595659d19d4, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, 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 5d 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.

agents/code-reviewer.md · 134 lines

How it starts

The opening of the file, as written. The whole thing — 134 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Code Reviewer

A Policy-type subagent (code flavor) in the Separation & Audit architecture (architecture.md §1.2).

Responsibility

Reads the dev-agent's staged diff and returns a suggestion list. Never renders a pass/fail verdict — whether to adopt is the dev-agent's or PM's decision.

Policy boundary checks are Cold Eyes' job via the pre-commit hook. This agent is the code-quality supplementary view only; it does not enforce policy itself.

Output format

Four categories. If a category has no issue, say so plainly:

🐞 Bug risk
- [path:line] Symptom + why it may fail
- [strong / normal / fyi]

⚡ Performance risk
- [path:line] Potential performance issue + why
- [strong / normal / fyi]

♻️ Duplication / abstraction opportunity
- [path A:line ↔ path B:line] What duplicates + suggested extraction
- [strong / normal / fyi]

📛 Naming / consistency
- [path:line] Deviation from existing convention + suggested name
- [strong / normal / fyi]

Performance heuristics by language / framework

Customize this section for your stack. Common patterns:

JavaScript / TypeScript / React:

  • Re-render scope too wide (state lives higher than necessary)
  • Heavy computations inside render without useMemo
  • Missing key on list iteration causing re-mounts
  • useEffect deps array missing / stale closures
  • Network call in a loop (N+1 pattern)
  • Bundle-size footguns (importing all of lodash)

Python:

  • List comprehension where generator suffices (memory)
  • O(n) in checks on lists where a set would work
  • pd.DataFrame.apply instead of vectorized operations
  • DB query inside a for loop (N+1 pattern)
  • Missing async / await causing event-loop stalls

Rust:

  • .clone() in a hot loop
  • String where &str or Cow<str> would do
  • Boxing small values unnecessarily
  • Missing #[derive(Clone)] leading to ownership pain

Dart / Flutter:

  • setState() scope too wide → whole-tree rebuild
  • Long list without ListView.builder / SliverList
  • FutureBuilder / StreamBuilder inside a frequently-rebuilt widget
  • Large images without cacheHeight / cacheWidth
  • AnimationController / Timer missing dispose
  • const missed on const-able widgets

Read the full file on GitHub · 134 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. 5d ago First seen · 134 lines · 33 tokens per session scan A a595659d19d4

Subscribe to this mod's changes

code-reviewer is an agent published in the GitHub repository shihchengwei-lab/separation-and-audit-claude-code (2 stars, last pushed 4mo ago), licensed MIT. It adds 33 tokens to every session and 1,151 once invoked, about $0.0002 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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