blueprint CLAUDE.md

blueprint CLAUDE.md is an instructions file for Claude Code from owainlewis/blueprint. It costs 213 tokens per session, scanned A, original, MIT.

Project setup instructions for Claude Code, an AI coding tool, in the Blueprint repository.

In plain words
What is it for?
Use them to install Blueprint, choose its commands, understand which work each command handles, and distinguish Claude-specific setup from shared rules.
Why use it?
They explain where shared repository rules live and which commands handle architecture, planning, testing, review, and code changes.

Instructions file for Claude Code

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

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 instructions/owainlewis/blueprint/claude-md
Clone the repo
git clone --depth 1 https://github.com/owainlewis/blueprint

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 blueprint CLAUDE.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/owainlewis/blueprint/claude-md.svg)](https://agentmods.dev/instructions/owainlewis/blueprint/claude-md)
Your own site
<a href="https://agentmods.dev/instructions/owainlewis/blueprint/claude-md"><img src="https://agentmods.dev/badge/instructions/owainlewis/blueprint/claude-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 213 This file is loaded in full into every session.
When invoked 213 The same file — it is already loaded in full.
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 $0.00213 $0.00213
Opus 5 $0.00106 $0.00106
Sonnet 5 $0.00043 $0.00043
Haiku 4.5 $0.00021 $0.00021

Measured 6d ago against content hash a92efeebf137, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

blueprint 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 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.md · 12 lines

What it actually says

Claude Code

@AGENTS.md

Blueprint keeps shared repository policy in AGENTS.md and only Claude-specific setup here.

Install Blueprint with npx skills add owainlewis/blueprint. Use /architecture, /design, /architecture-review, /plan, /test, /review, and /improve for one kind of engineering work. Use /task-to-pr to deliver one or more code changes. Use /codex-issue-coordinator only in Codex to coordinate a large GitHub issue batch through separate worker threads and gated merges.

Everything you call in Blueprint is a skill. /task-to-pr accepts tasks, tickets, pull requests, or a milestone and creates one pull request for each task. /codex-issue-coordinator is Codex-specific because it requires Codex thread and managed-worktree tools. AGENTS.md contains the repository rules.

The /architecture-review and /review phases use a fresh generic subagent. Blueprint does not require a separate reviewer agent definition.

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 · 12 lines · 213 tokens per session scan A a92efeebf137

Subscribe to this mod's changes

blueprint CLAUDE.md is an instructions file published in the GitHub repository owainlewis/blueprint (378 stars, last pushed 7d ago), licensed MIT. It adds 213 tokens to every session, about $0.0011 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.