What is ai-agents-workspace-starter CLAUDE.md?

A starter project guide for teams of coding agents using hexagonal architecture, a design that separates core business logic from outside systems. It defines which folders each teammate may edit and which they must leave alone.

Use it when coordinating backend, frontend, infrastructure, documentation, testing, platform, architecture, or AI-focused agents in the starter project.

It makes parallel work safer by giving each agent a clear area of responsibility and a defined implementation order. This helps prevent overlapping edits and architectural drift.

How systemowiec/ai-agents-workspace-starter configures Claude Code

Reuse

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.

Copy the file

curl -O https://raw.githubusercontent.com/systemowiec/ai-agents-workspace-starter/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/systemowiec/ai-agents-workspace-starter

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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/systemowiec/ai-agents-workspace-starter/claude-md/github.svg)](https://agentmods.dev/instructions/systemowiec/ai-agents-workspace-starter/claude-md)

Your own site

<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.

Your own site · 80×15

<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>

Per session 1,075 This file is loaded in full into every session.

When invoked 1,075 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.

Model	Per session	Once invoked
Fable 5.1	$0.01075	$0.01075
Opus 5.5	$0.00430	$0.00430
Sonnet 5.5	$0.00215	$0.00215
Haiku 4.5	$0.00108	$0.00108

Measured 2mo ago against content hash b60b8b6185cb, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

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 2mo 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 · 99 lines

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

Read the full file on GitHub · 99 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.

2mo ago First seen · 99 lines · 1,075 tokens per session scan A b60b8b6185cb

Subscribe to this mod's changes

ai-agents-workspace-starter CLAUDE.md is an instructions file published in the GitHub repository systemowiec/ai-agents-workspace-starter (2 stars, last pushed 7mo ago), licensed MIT. It adds 1,075 tokens to every session, about $0.0043 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 2026-08-31.

Building agents

ai-agents-workspace-starter CLAUDE.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
ai-agents-workspace-starter CLAUDE.mdsystemowiec/ai-agents-workspace-starter	Instructions file	2	7mo ago	MIT	A	1,075	Claude Code
vscode buildNext.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	9,719	GitHub Copilot
next.js AGENTS.mdvercel/next.js	Instructions file	143k	today	MIT	A	7,461	Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	5,516	GitHub Copilot
langchain AGENTS.mdlangchain-ai/langchain	Instructions file	149k	today	MIT	A	4,680	Codex, OpenCode
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	3,093	GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness	Instructions file	275k	3d ago	MIT	A	4,313	Codex, OpenCode

ai-agents-workspace-starter: Instructions file for Claude Code