claude-code-patterns: Instructions file for Claude Code

CLAUDE.md

claude-code-patterns CLAUDE.md is an instructions file for Claude Code from AaronRoeF/claude-code-patterns. It costs 527 tokens per session, scanned A, original, MIT.

A reference guide to tested Claude Code workflows and patterns, organized into sections on architecture, techniques, knowledge bases, quick references, and live examples. Claude Code is a coding assistant that works with files and developer tools.

In plain words
What is it for?
Use it when planning Claude Code workflows, looking up hooks or testing patterns, building a knowledge base, or finding command and integration examples.
Why use it?
It gives agents a structured source for finding relevant workflow guidance instead of relying on general assumptions.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: mentions subagents; mentions Claude Code.

This is AaronRoeF/claude-code-patterns's own configuration. It tells Claude Code how to work on claude-code-patterns 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-patterns configures →

Reuse

Borrowing it

Nothing to install: this file belongs to AaronRoeF/claude-code-patterns. 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/AaronRoeF/claude-code-patterns/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/AaronRoeF/claude-code-patterns

Made for: Claude Code.

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README.md
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Per session 527 This file is loaded in full into every session.
When invoked 527 The same file — it is already loaded in full.
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 $0.00527 $0.00527
Opus 5.5 $0.00211 $0.00211
Sonnet 5.5 $0.00105 $0.00105
Haiku 4.5 $0.00053 $0.00053

Measured 26d ago against content hash 82e9db4d96bc, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

claude-code-patterns CLAUDE.md 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 26d 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.md · 25 lines

How it starts

The opening of the file, as written. The whole thing — 25 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Claude Code Pattern Library

Field-tested techniques for Claude Code, organized into five parts (counts live in README.md). When the user asks about Claude Code workflows, patterns, or best practices, search these files for relevant techniques. Reference techniques by title.

Structure

  • README.md — Landing page: architecture overview, getting started, table of contents
  • PART1-CORE-ARCHITECTURE.md — Part 1: foundational patterns from a live production setup
  • PART2-TECHNIQUES.md — Part 2: techniques by category (index table at top for scanning)
  • PART3-BUILD-A-KNOWLEDGE-BASE.md — Part 3: building a persistent AI knowledge base
  • PART4-QUICK-REFERENCE.md — Part 4: Cheat sheets — keyboard shortcuts, slash commands, MCP starter kit
  • PART5-LIVE-EXAMPLES.md — Part 5: Live production examples — hooks, test suites, scripts
  • SOURCES.md — Attribution and sources

For AI Agents

This repo is designed to be consumed programmatically. To build an implementation plan:

  1. Read the README for architecture overview and orientation
  2. Read Part 3 (BUILD-A-KNOWLEDGE-BASE) for the step-by-step builder table
  3. Read Part 2 (TECHNIQUES) for specific tips relevant to the user's stack
  4. Produce a sequenced implementation plan with dependencies
  5. Create a PULSE.md tracker for the adoption project itself (see "Project Pulse Files for Completion Tracking" in Part 2) and update it every session, so each future session resumes exactly where this one stopped
  6. Three entries bind the plan you produce and the work you do from it:
    • Any MCP server the plan adds is pinned to an exact version or a local checkout — never npx -y <package> unpinned (Part 2, "Pin Your MCP Servers").
    • Any scheduled job is not "done" until it has run once under its real launcher on one real input, and the plan says who runs that and when (Part 2, "The First Real Run Decides").
    • Any work you delegate to a subagent comes back with the check the subagent could not do: the premise question, your own one-line mutant against its tests, the gate result, an evidence pass on anything to be published (Part 2, "The Check You Owe Your Delegate"). Report the check, not just the hand-back.

Read the full file on GitHub · 25 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. 26d ago Changed · +4 lines · +176 tokens per session 82e9db4d96bc
  2. 2mo ago First seen · 21 lines · 351 tokens per session scan A 43321888b3c7

Subscribe to this mod's changes

claude-code-patterns CLAUDE.md is an instructions file published in the GitHub repository AaronRoeF/claude-code-patterns (126 stars, last pushed 27d ago), licensed MIT. It adds 527 tokens to every session, about $0.0021 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 2026-08-30.

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