claude-code-best-practice: Instructions file for Claude Code

CLAUDE.md

claude-code-best-practice CLAUDE.md is an instructions file for Claude Code from shanraisshan/claude-code-best-practice. It costs 1,896 tokens per session, scanned B, original, MIT.

A set of project instructions for Claude Code in a repository that demonstrates skills, subagents, hooks, and commands. It also documents an example weather workflow.

In plain words
What is it for?
Use it as a reference when organizing Claude Code instructions, reusable skills, subagents, hooks, and multi-step commands.
Why use it?
It gives the coding agent a shared description of the repository and explains how its automation pieces fit together.

Instructions file for Claude Code

Written for Claude Code: PreToolUse hook event. Also seen: reads .claude/ paths; mentions CLAUDE.md; mentions subagents.

This is shanraisshan/claude-code-best-practice's own configuration. It tells Claude Code how to work on claude-code-best-practice itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything claude-code-best-practice configures →

About the project

claude-code-best-practice is a repository of agents, commands, skills, hooks, plugins, and configuration guidance for Claude Code. It helps developers organize repeatable workflows and apply agentic engineering practices, including in monorepos. The catalogue entries are its reusable Claude Code workflow components.

shanraisshan/claude-code-best-practice · 68,074 stars · on GitHub · linkedin.com

Reuse

Borrowing it

Nothing to install: this file belongs to shanraisshan/claude-code-best-practice. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/shanraisshan/claude-code-best-practice/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/shanraisshan/claude-code-best-practice

Made for: Claude Code.

Wrote this? Show the measurements

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Per session 1,896 This file is loaded in full into every session.
When invoked 1,896 The same file — it is already loaded in full.
Security scan B 1 finding. 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 $0.01896 $0.01896
Opus 5.5 $0.00758 $0.00758
Sonnet 5.5 $0.00379 $0.00379
Haiku 4.5 $0.00190 $0.00190

Measured 12d ago against content hash 174486558584, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade B, and why

claude-code-best-practice CLAUDE.md scanned grade B with 1 finding 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 12d 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.

Reads agent configuration directoriesmediumAgent snooping

.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.

5. `~/.claude/settings.json`: Global personal defaults
Origin

Copies of this mod

1 near-identical copy found in the catalogue:

CLAUDE.md · 127 lines

How it starts

The opening of the file, as written. The whole thing — 127 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.

Repository Overview

This is a best practices repository for Claude Code configuration, demonstrating patterns for skills, subagents, hooks, and commands. It serves as a reference implementation rather than an application codebase.

Key Components

Weather System (Example Workflow)

A demonstration of two distinct skill patterns via the Command → Agent → Skill architecture:

  • /weather-orchestrator command (.claude/commands/weather-orchestrator.md): Entry point — asks user for C/F, invokes agent, then invokes SVG skill
  • weather-agent agent (.claude/agents/weather-agent.md): Fetches temperature using its preloaded weather-fetcher skill (agent skill pattern)
  • weather-fetcher skill (.claude/skills/weather-fetcher/SKILL.md): Preloaded into agent — instructions for fetching temperature from Open-Meteo
  • weather-svg-creator skill (.claude/skills/weather-svg-creator/SKILL.md): Skill — creates SVG weather card, writes orchestration-workflow/weather.svg and orchestration-workflow/output.md

Two skill patterns: agent skills (preloaded via skills: field) vs skills (invoked via Skill tool). See orchestration-workflow/orchestration-workflow.md for the complete flow diagram.

Skill Definition Structure

Skills in .claude/skills/<name>/SKILL.md use YAML frontmatter:

  • name: Display name and /slash-command (defaults to directory name)
  • description: When to invoke (recommended for auto-discovery)
  • argument-hint: Autocomplete hint (e.g., [issue-number])
  • disable-model-invocation: Set true to prevent automatic invocation
  • user-invocable: Set false to hide from / menu (background knowledge only)
  • allowed-tools: Tools allowed without permission prompts when skill is active
  • model: Model to use when skill is active
  • context: Set to fork to run in isolated subagent context
  • agent: Subagent type for context: fork (default: general-purpose)
  • hooks: Lifecycle hooks scoped to this skill

Read the full file on GitHub · 127 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. 12d ago Changed · +66 tokens per session 174486558584
  2. 1mo ago First seen · 127 lines · 1,830 tokens per session scan B 9f9a7f3e400b

Subscribe to this mod's changes

claude-code-best-practice CLAUDE.md is an instructions file published in the GitHub repository shanraisshan/claude-code-best-practice (68,074 stars, last pushed yesterday), licensed MIT. It adds 1,896 tokens to every session, about $0.0076 per session on Opus 5.5. A static security scan graded it B with 1 finding (reads agent configuration directories). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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