ai-dev-operating-system CLAUDE.md

ai-dev-operating-system CLAUDE.md is an instructions file for Claude Code from lglucas/ai-dev-operating-system. It costs 653 tokens per session, scanned A, original, MIT.

A set of project instructions for using coding agents to build software with organized documentation, planning, reviews, and security checks.

In plain words
What is it for?
Use it as the operating guide for starting projects, running prototypes, planning work, managing documentation, and coordinating agent-assisted development.
Why use it?
It gives agents shared rules for understanding a project before coding, recording decisions, avoiding invented claims, and keeping generated work consistent.

Instructions file for Claude Code

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

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/lglucas/ai-dev-operating-system/claude-md
Clone the repo
git clone --depth 1 https://github.com/lglucas/ai-dev-operating-system

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.

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README.md
[![agentmods](https://agentmods.dev/badge/instructions/lglucas/ai-dev-operating-system/claude-md.svg)](https://agentmods.dev/instructions/lglucas/ai-dev-operating-system/claude-md)
Your own site
<a href="https://agentmods.dev/instructions/lglucas/ai-dev-operating-system/claude-md"><img src="https://agentmods.dev/badge/instructions/lglucas/ai-dev-operating-system/claude-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 653 This file is loaded in full into every session.
When invoked 653 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 $0.00653 $0.00653
Opus 5 $0.00327 $0.00327
Sonnet 5 $0.00131 $0.00131
Haiku 4.5 $0.00065 $0.00065

Measured 5d ago against content hash 92411ac752b1, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

ai-dev-operating-system 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 5d 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 · 62 lines

How it starts

The opening of the file, as written. The whole thing — 62 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md — AI Dev Operating System

This file defines how Claude Code and other AI coding agents should behave inside this repository.

The purpose of this repo is to provide a day-zero operating system for AI-assisted SaaS development: rules, agents, skills, commands, documentation layers, sprint system, changelog discipline, session logs, security gates, and prototype workflows.


Golden rules

  1. Do not code before context.
  2. Use START-HERE.md and WIZARD.md for new projects. Prototype (Phase 3) before specifying (Phase 4).
  3. Keep documentation layers separate.
  4. Preserve decision memory in session-log/.
  5. Human review is mandatory for BP v0.0.1 before BP v0.0.2.
  6. Use multi-agent review when relevant.
  7. No invented facts in market, competitor, legal, pricing, or regulatory claims.
  8. Use separation of concerns and keep code files under 200 lines where practical.
  9. Generated code files should include purpose/version/sprint headers.
  10. Use stable dependencies by default; avoid alpha/beta unless explicitly accepted.

Required generated artifacts for a new project

Listed in the order the wizard produces them:

knowledge-base/README.md                (Phase 2)
docs/business/BUSINESS-PLAN.md          (Phase 2)
docs/business/PITCH.md                  (Phase 2)
prototype-lab/README.md                 (Phase 3)
docs/product/DESIGN-DIRECTION.md        (Phase 3)
docs/product/PRODUCT-BRIEF.md           (Phase 4)
docs/technical/TECHNICAL-PLAN.md        (Phase 4)
docs/SPRINTS.md                         (Phase 4)
CODEMAP.md                              (Phase 5, generated from the code)
CHANGELOG.md
session-log/INDEX.md
session-log/YYYY-MM-DD-project-genesis.md

Project Genesis Wizard

The canonical wizard is WIZARD.md. It runs in 5 phases:

Phase Name Produces
1 Largada detached repo, project intro
2 Ideação research, red team, BP v0.0.2
3 Protótipo brand, color, UI, UX — three clickable directions, one approved, and docs/product/DESIGN-DIRECTION.md written as the bridge into Phase 4
4 Documentação Product Brief + Technical Plan reverse-engineered from the prototype, then the roadmap
5 Chegada Sprint 0 / Sprint 1

Read the full file on GitHub · 62 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. 5d ago First seen · 62 lines · 653 tokens per session scan A 92411ac752b1

Subscribe to this mod's changes

ai-dev-operating-system CLAUDE.md is an instructions file published in the GitHub repository lglucas/ai-dev-operating-system (11 stars, last pushed 27d ago), licensed MIT. It adds 653 tokens to every session, about $0.0033 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.