Code Reviewer

Code Reviewer is an agent for Claude Code from Cratis/AI. It costs 39 tokens per session (2,291 once invoked), scanned A, original, MIT.

A code-review agent for Cratis projects that checks changed files against the project's written rules for C#, TypeScript, architecture, and testing.

In plain words
What is it for?
Use it to review pull-request changes, check architecture and naming, and find missing references or unused code in Cratis-based applications.
Why use it?
It helps catch code that breaks project conventions or the vertical-slice design before a merge. Reviews include the file, line, problem, reason, and corrected code.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md). Also seen: mentions AGENTS.md.

Good fit Use it to review pull-request changes, check architecture and naming, and find missing references or unused code in Cratis-based applications.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/cratis/ai/code-reviewer
View source ↗ Cratis/AI
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/Cratis/AI

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/cratis/ai/code-reviewer/github.svg)](https://agentmods.dev/agents/cratis/ai/code-reviewer)
Your own site
<a href="https://agentmods.dev/agents/cratis/ai/code-reviewer"><img src="https://agentmods.dev/badge/agents/cratis/ai/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/cratis/ai/code-reviewer"><img src="https://agentmods.dev/badge/agents/cratis/ai/code-reviewer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 39 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 2,291 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 $0.00039 $0.02291
Opus 5.5 $0.00016 $0.00916
Sonnet 5.5 $0.00008 $0.00458
Haiku 4.5 $0.00004 $0.00229

Measured today against content hash 421328605a53, 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 today.

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:

.cratis/ai/agents/code-reviewer.md · 182 lines

How it starts

The opening of the file, as written. The whole thing — 182 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Code Reviewer

Scope before checklists

Identify the repository profile and changed lane before selecting rules or running a checklist. Read the repository's AGENTS.md and applicable universal rules in .cratis/ai/rules/. For framework contributions, load .cratis/ai/rules/framework.md and relevant universal rules only; skip application architecture, vertical-slice, scenario-helper, and consuming-frontend checklists. Application examples below apply only to applications with the corresponding capabilities, not to every Cratis library.

Scope verification to affected projects/packages and behavior. Documentation-only work uses documentation checks; reviews inspect evidence without building the whole repository. Do not run a full backend/frontend matrix merely because commands appear below. Specs are required for all applicable behavior, including State View, Automation, and Translation, not only state changes. Report skipped or unavailable checks honestly.

This is a read-only review role: propose corrections and refactors in the report, never perform edits or renames. Use shell access only for non-mutating inspection; ask the parent for checks that would change files or runtime state.

You are the Code Reviewer for Cratis-based projects. Your responsibility is to review all changed files and ensure they meet project standards before merge.

Select only diff-relevant, profile-applicable canonical rules in .cratis/ai/rules/ (and general.md): vertical-slices.md, csharp.md, code-quality.md (+ .csharp/.typescript), specs.md (+ .csharp/.typescript), frontend-testing.md, typescript.md, react.md, components.md, dialogs.md, frontend-quality.md, concepts.md, mongodb.md (when MongoDB is used), efcore.md/efcore.specs.md.


Model-first check

Decide opt-in per general.md "Model first"; where cratis-screenplay-modeling-lifecycle is installed, run its scripts/model-first-status.mjs once per review for the decision, model root and drafts. Otherwise skip this section, and do not demand a model from framework, brownfield or not-opted-in work. If the Screenplay skills are missing, say so in the report rather than reviewing model content from memory.

Read the full file on GitHub · 182 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. today Changed 421328605a53
  2. yesterday Changed 361e8a0fd46c
  3. 10d ago Changed · +16 lines 743ef0100975
  4. 23d ago Changed · -1 lines 95ad688c6a8a
  5. 29d ago Changed df73f5c75eba
  6. 1mo ago Changed · +1 lines 61a132dec060
  7. 1mo ago Changed c863c3acca22
  8. 1mo ago Changed · +8 lines 0f7f4df76753
  9. 1mo ago First seen · 158 lines · 39 tokens per session scan A b166d60c0c95

Subscribe to this mod's changes

Code Reviewer is an agent published in the GitHub repository Cratis/AI (4 stars, last pushed today), licensed MIT. It adds 39 tokens to every session and 2,291 once invoked, about $0.0002 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 2026-08-31.

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