code-review

code-review is a skill for Claude Code from TakaGoto/rag-learning-academy. It costs 11 tokens per session (1,148 once invoked), scanned A, original, MIT.

A structured review of code for a RAG implementation, meaning code that retrieves documents to support generated answers. It provides feedback on correctness, performance, and robustness.

In plain words
What is it for?
Use it to review a RAG retriever or other component and receive actionable feedback on how it works and how it could be improved.
Why use it?
It gives an experienced-engineer perspective on weaknesses that may not appear in a quick test. The review can focus on a specified file, directory, or available project code.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

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 skills/takagoto/rag-learning-academy/code-review
Any agent
npx skills add TakaGoto/rag-learning-academy --skill code-review
Clone the repo
git clone --depth 1 https://github.com/TakaGoto/rag-learning-academy

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-review

README.md
[![agentmods](https://agentmods.dev/badge/skills/takagoto/rag-learning-academy/code-review.svg)](https://agentmods.dev/skills/takagoto/rag-learning-academy/code-review)
Your own site
<a href="https://agentmods.dev/skills/takagoto/rag-learning-academy/code-review"><img src="https://agentmods.dev/badge/skills/takagoto/rag-learning-academy/code-review.svg" alt="Measured on agentmods" height="20"></a>
Per session 11 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,148 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 $0.00011 $0.01148
Opus 5 $0.00005 $0.00574
Sonnet 5 $0.00002 $0.00230
Haiku 4.5 $0.00001 $0.00115

Measured 6d ago against content hash 187ca5039a0a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, 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 6d 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/skills/code-review/SKILL.md · 118 lines

How it starts

The opening of the file, as written. The whole thing — 118 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Code Review: Expert Feedback on Your RAG Implementation

Review the learner's RAG code with the eye of an experienced RAG engineer, providing actionable feedback that improves correctness, performance, and robustness.

Language awareness: See .claude/LANGUAGE_AWARENESS.md.

Step 1: Identify the Code to Review

Welcome! Let's take a close look at your RAG code together.

First, determine what code is available for review:

  • If the user specifies a file or directory (e.g., /code-review projects/my-rag/retriever), review that.

  • If no argument is given, check for a learner profile at progress/learner-profile.md and look for code in src/ and projects/.

  • If no RAG code exists anywhere in projects/ or src/ (and no file was specified), guide them warmly:

    "It looks like you haven't written any RAG code yet — that's the perfect place to start! Run /build to create your first RAG component, and then come back here for expert feedback on what you've built. I'll be ready to help you level it up!"

    Stop here — do not continue to Step 2.

  • If code is found and multiple files exist, ask which component they want reviewed, or offer to review the full pipeline.

Step 2: Read and Understand the Code

Before giving feedback, thoroughly understand what the code does:

  • Read all relevant files
  • Trace the data flow from input to output
  • Identify the overall architecture and design pattern
  • Note which libraries and models are being used

Step 3: Review Dimensions

Evaluate the code across these dimensions, providing specific feedback for each:

Correctness

  • Does the code produce correct results?
  • Are there logic errors, off-by-one errors, or incorrect API usage?
  • Are edge cases handled (empty input, very large documents, special characters)?
  • Are embeddings and vector operations mathematically correct?

RAG-Specific Best Practices

  • Chunk size and overlap: Are they appropriate for the document type and use case?
  • Embedding dimensions: Do all components agree on the embedding dimension?
  • Prompt engineering: Is the RAG prompt well-structured? Does it instruct the model to use only the provided context?
  • Context window management: Could the context exceed the model's token limit?
  • Metadata handling: Is useful metadata preserved through the pipeline?
  • Error handling: What happens when the retriever returns no results? When the API is down?

Read the full file on GitHub · 118 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. 6d ago First seen · 118 lines · 11 tokens per session scan A 187ca5039a0a

Subscribe to this mod's changes

code-review is a skill published in the GitHub repository TakaGoto/rag-learning-academy (18 stars, last pushed 5mo ago), licensed MIT. It adds 11 tokens to every session and 1,148 once invoked, about $0.0001 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.

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