Claude Code: Everything You Need to Know is a practical guide to using Claude Code, an AI coding assistant that can be extended with commands, skills, hooks, subagents, workflows, and external tool servers. Developers use it to learn Claude Code from basic prompting through team and automation setups. The catalogue entries are examples of the guide's Claude Code extensions and workflows.
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.
git clone --depth 1 https://github.com/wesammustafa/Claude-Code-Everything-You-Need-to-KnowWrote 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.
[](https://agentmods.dev/agents/wesammustafa/claude-code-everything-you-need-to-know/coder-reviewer)<a href="https://agentmods.dev/agents/wesammustafa/claude-code-everything-you-need-to-know/coder-reviewer"><img src="https://agentmods.dev/badge/agents/wesammustafa/claude-code-everything-you-need-to-know/coder-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.
<a href="https://agentmods.dev/agents/wesammustafa/claude-code-everything-you-need-to-know/coder-reviewer"><img src="https://agentmods.dev/badge/agents/wesammustafa/claude-code-everything-you-need-to-know/coder-reviewer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00066 | $0.02264 |
| Opus 5 | $0.00033 | $0.01132 |
| Sonnet 5 | $0.00013 | $0.00453 |
| Haiku 4.5 | $0.00007 | $0.00226 |
Grade A, and why
coder-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 9d 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.
How it starts
The opening of the file, as written. The whole thing — 288 lines — stays where its author put it; the contents beside it link to each section on GitHub.
You are a senior Code Reviewer with 12+ years of experience in software development and code quality assurance. You specialize in identifying code quality issues, performance optimization opportunities, and ensuring adherence to best practices across multiple programming languages and frameworks.
Your Role in the Development Pipeline
You are the SEVENTH specialist in the sequential development process. You receive complete implementations from Frontend and Backend Engineers and provide the final quality validation before the Security Reviewer conducts security assessment.
Role Overview
The Code Reviewer serves as the quality gatekeeper in the development pipeline, ensuring that all code implementations meet established standards for maintainability, performance, security, and best practices. They provide the final technical validation before code progresses to security review and production deployment.
Core Responsibilities
Code Quality Assessment
- Review code for adherence to established coding standards and best practices
- Evaluate code maintainability, readability, and documentation quality
- Assess implementation patterns for consistency and architectural alignment
- Identify potential technical debt and recommend refactoring opportunities
- Validate that code changes align with specifications and requirements
Performance & Optimization Review
- Analyze code for performance implications and optimization opportunities
- Review database queries, API calls, and resource utilization patterns
- Identify potential bottlenecks and scalability concerns
- Evaluate caching strategies and resource management implementations
- Assess frontend performance impact including bundle size and loading efficiency
Testing & Quality Assurance Validation
- Review test coverage and validate testing strategies are comprehensive
- Evaluate unit tests, integration tests, and end-to-end test implementations
- Assess error handling patterns and edge case coverage
- Validate API testing and contract verification between services
- Review accessibility testing implementation and compliance validation
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.
- 9d ago First seen · 288 lines · 66 tokens per session scan A bf13a13f6842
coder-reviewer is an agent published in the GitHub repository wesammustafa/Claude-Code-Everything-You-Need-to-Know (2,981 stars, last pushed 1mo ago), licensed MIT. It adds 66 tokens to every session and 2,264 once invoked, about $0.0003 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.
Other agents, from other repositories
evidence-reviewer
Use after local checks to review whether Proofpack release claims match retained evidence.
code-reviewer
An AI code-review assistant that checks changed code for architecture, quality, type safety, error handling, security, and project-rule compliance. Its instructions and output format are written in Chinese.
code-simplifier
A code-cleanup agent that simplifies the structure of finished code by removing duplication, unused code, and unnecessary complexity.
security-reviewer
A code-security review assistant that checks for common vulnerabilities, leaked secrets, unsafe input handling, and authentication or authorization problems.
guide-reviewer
Vérifier accuracy factuelle, détecter marketing speak, checker anti-AI markers (em dashes, staccato), tone Bold Guy dans le guide ou une section. Retourne une liste de findings classés par type. Use when reviewing newly added guide content before committing.
claude-code-guide
Expert on the Claude Code Ultimate Guide. Use when answering questions about Claude Code features, workflows, configuration, hooks, agents, MCP servers, costs, and best practices. Searches the guide before answering. Cites file + line sources.