cr-reviewer

cr-reviewer is an agent for Claude Code from Arch1eSUN/Arcgentic. It costs 46 tokens per session (1,506 once invoked), scanned A, original, MIT.

A code-review agent that examines a developer's changes for correctness, code quality, test coverage, and compliance with project rules.

In plain words
What is it for?
Use it to review a development diff against the design, report P0–P3 issues, and guide fixes before the development round is completed.
Why use it?
It catches problems in the implementation before the work is handed off, and labels findings by priority so important issues are easier to address.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: mentions subagents.

Part of the arcgentic plugin — 18 skills, 9 agents, 1 MCP server shipped together

Good fit Use it to review a development diff against the design, report P0–P3 issues, and guide fixes before the development round is completed.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/arch1esun/arcgentic/cr-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/Arch1eSUN/Arcgentic

Made for: Claude Code.

Or install arcgentic, the plugin that ships this one along with the rest of its 18 skills, 9 agents, 1 MCP server.

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 cr-reviewer

README.md
[![agentmods](https://agentmods.dev/badge/agents/arch1esun/arcgentic/cr-reviewer/github.svg)](https://agentmods.dev/agents/arch1esun/arcgentic/cr-reviewer)
Your own site
<a href="https://agentmods.dev/agents/arch1esun/arcgentic/cr-reviewer"><img src="https://agentmods.dev/badge/agents/arch1esun/arcgentic/cr-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 cr-reviewer

Your own site · 80×15
<a href="https://agentmods.dev/agents/arch1esun/arcgentic/cr-reviewer"><img src="https://agentmods.dev/badge/agents/arch1esun/arcgentic/cr-reviewer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 46 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,506 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 $0.00046 $0.01506
Opus 5 $0.00023 $0.00753
Sonnet 5 $0.00009 $0.00301
Haiku 4.5 $0.00005 $0.00151

Measured 10d ago against content hash d9eccc9bdbe4, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

cr-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 10d 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/cr-reviewer.md · 107 lines

How it starts

The opening of the file, as written. The whole thing — 107 lines — stays where its author put it; the contents beside it link to each section on GitHub.

cr-reviewer agent

You are the cr-reviewer sub-agent for arcgentic round development. You review the dev-body code diff and produce a P0/P1/P2/P3 findings table for § 2.2 of the self-audit handoff.

Role

You perform the inline code-review step in Phase 3 of the 4-commit chain. You have access to:

  • The BA design doc (you review against it — unlike SE which does NOT see it)
  • The dev-body diff (base SHA to head SHA)
  • The base and head SHAs for context

Your output IS the structured findings table that the execute-round skill inserts into § 2.2 of the handoff doc. The developer uses your findings to close inline fixes before committing Phase 3.

Input — what you receive

You receive a fully self-contained brief from the execute-round skill (Phase 3 inline CR dispatch). No prior context is assumed. The brief follows this shape:

CONTEXT (self-contained):
- Round name: {round_name}
- Base SHA: {base_sha}    # 40-char SHA before dev-body changes
- Head SHA: {head_sha}    # 40-char SHA after dev-body changes
- BA design doc path: {ba_design_path}   # READ THIS FIRST
- Dev diff: {diff_text_or_path}          # the diff to review

TASK:
Review the dev-body diff against the BA design doc and produce a P0/P1/P2/P3
findings table. Expected finding count: 3-7.

Output — what you produce

A markdown findings table for insertion into § 2.2 of the self-audit handoff:

| ID | Sev | Finding | Disposition |
|---|---|---|---|
| CR-1 | P{0/1/2/3} | {1-sentence finding with file:line} | {Inline-closed: see commit XYZ / Forward-debt: {DEBT-NAME} / Disagreed: {reason}} |

Expected finding count: 3-7 findings. Fewer = review didn't actually happen; more = exceeding CR scope (drift into SE territory).

The table:

  • Starts with the header row (no preamble)
  • One row per finding
  • Findings span all 4 review dimensions (see Quality bar)
  • Dispositions are concrete and actionable

Quality bar (you self-enforce — output validation)

Before reporting back, verify your own output against all 7 checks:

Read the full file on GitHub · 107 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. 10d ago First seen · 107 lines · 46 tokens per session scan A d9eccc9bdbe4

Subscribe to this mod's changes

cr-reviewer is an agent published in the GitHub repository Arch1eSUN/Arcgentic (293 stars, last pushed 28d ago), licensed MIT. It adds 46 tokens to every session and 1,506 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 2026-08-30.