Borrowing it
Nothing to install: this file belongs to systemowiec/ai-agents-workspace-starter. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/systemowiec/ai-agents-workspace-starter/main/CLAUDE.mdgit clone --depth 1 https://github.com/systemowiec/ai-agents-workspace-starterWrote 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/instructions/systemowiec/ai-agents-workspace-starter/claude-md)<a href="https://agentmods.dev/instructions/systemowiec/ai-agents-workspace-starter/claude-md"><img src="https://agentmods.dev/badge/instructions/systemowiec/ai-agents-workspace-starter/claude-md/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/instructions/systemowiec/ai-agents-workspace-starter/claude-md"><img src="https://agentmods.dev/badge/instructions/systemowiec/ai-agents-workspace-starter/claude-md.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 | $0.01075 | $0.01075 |
| Opus 5 | $0.00537 | $0.00537 |
| Sonnet 5 | $0.00215 | $0.00215 |
| Haiku 4.5 | $0.00108 | $0.00108 |
Grade A, and why
ai-agents-workspace-starter 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 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 — 99 lines — stays where its author put it; the contents beside it link to each section on GitHub.
[PROJECT_NAME]
Read
AGENTS.md- full project rules (source of truth). This file is loaded automatically by Claude Code (including every teammate in Agent Teams).
Architecture
Hexagonal Architecture (Ports & Adapters). Implementation order: domain -> application -> adapters -> interface.
File Boundaries (Agent Teams)
Every teammate MUST respect file boundaries. Editing outside your scope = error.
| Teammate | Can write | MUST NOT touch |
|---|---|---|
| backend-engineer | backend/, docs/specs/ | frontend/, infra/, terraform/, .agents/roles/ |
| quality-gate | docs/specs/ | ANYTHING ELSE (readonly) |
| architect | docs/, .agents/ | backend/, frontend/, infra/ |
| analyst | docs/specs/ | backend/, frontend/, infra/, e2e/, .agents/roles/ |
| platform-engineer | infra/, terraform/, scripts/, Makefile, docs/specs/ | backend/app/, frontend/src/ |
| frontend-engineer | frontend/, docs/specs/ | backend/, infra/, terraform/ |
| e2e-engineer | e2e/, infra/e2e/, docs/specs/ | backend/app/, frontend/src/ |
| ai-specialist | backend/ (AI/LLM modules only), docs/specs/ | frontend/, infra/, terraform/, Makefile, unrelated backend logic |
Two teammates cannot edit the same file simultaneously. If you need to change another teammate's file - send them a message.
Subagents
Subagent definitions in .claude/agents/. Each references the full role from .agents/roles/.
| Subagent | Role file | Tools |
|---|---|---|
| backend-engineer | .agents/roles/backend-engineer.md |
Read, Write, Edit, Bash, Glob, Grep |
| quality-gate | .agents/roles/quality-gate.md |
Read, Grep, Glob (readonly) |
| architect | .agents/roles/architect.md |
Read, Write, Edit, Glob, Grep |
| analyst | .agents/roles/analyst.md |
Read, Write, Edit, Glob, Grep |
| platform-engineer | .agents/roles/platform-engineer.md |
Read, Write, Edit, Bash, Glob, Grep |
| frontend-engineer | .agents/roles/frontend-engineer.md |
Read, Write, Edit, Bash, Glob, Grep |
| e2e-engineer | .agents/roles/e2e-engineer.md |
Read, Write, Edit, Bash, Glob, Grep |
| ai-specialist | .agents/roles/ai-specialist.md |
Read, Write, Edit, Bash, Glob, Grep |
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 · 99 lines · 1,075 tokens per session scan A b60b8b6185cb
ai-agents-workspace-starter CLAUDE.md is an instructions file published in the GitHub repository systemowiec/ai-agents-workspace-starter (2 stars, last pushed 5mo ago), licensed MIT. It adds 1,075 tokens to every session, about $0.0054 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 2026-08-31.
Other instructions, from other repositories
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AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
codex AGENTS.md
AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, applying the notice (cutover) and fallback chain (never fail the build).
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
deepseek-harness AGENTS.md
AGENTS.md instructions for deepseek-ai/deepseek-harness, covering agents.md, pre-stable apis and released session data, repository layout, commands and host sandbox failures.