Borrowing it
Nothing to install: this file belongs to niels-emmer/myace. 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/niels-emmer/myace/main/CLAUDE.mdgit clone --depth 1 https://github.com/niels-emmer/myaceWrote 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/niels-emmer/myace/claude-md)<a href="https://agentmods.dev/instructions/niels-emmer/myace/claude-md"><img src="https://agentmods.dev/badge/instructions/niels-emmer/myace/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/niels-emmer/myace/claude-md"><img src="https://agentmods.dev/badge/instructions/niels-emmer/myace/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 | $0.00419 | $0.00419 |
| Opus 5 | $0.00210 | $0.00210 |
| Sonnet 5 | $0.00084 | $0.00084 |
| Haiku 4.5 | $0.00042 | $0.00042 |
Grade A, and why
myace 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.
What it actually says
@AGENTS.md
Claude Code
This file provides guidance to Claude Code (claude.ai/code) specifically.
Everything else — what the project is, commands, architecture, rules, and
gotchas — lives in the imported AGENTS.md above, which is the single
source of truth shared by every AI coding agent working in this repo. Only
genuinely Claude-Code-specific notes belong below; don't duplicate
AGENTS.md content here.
- Don't confuse this file with the
claude_codeadapter's output.backend/app/adapters/claude_code.pygenerates aCLAUDE.md+.claude/agents/*.md+.claude/skills/*/SKILL.md+.claude/commands/*.mdfile set as one of MyACE's compile targets — that's a MyACE user's compiled profile output, unrelated to this file, which guides Claude Code while it works on the MyACE codebase itself. (As of Aug 2026: real Claude Code has no.claude/workflows/directory — commands were merged into skills, and.claude/skills/*/SKILL.mdis the on-demand-loaded current format;.claude/commands/*.mdstill works as a legacy slash-command path. The adapter targets both correctly as of this note; seedocs/plans/starter-collections-improvements.mdfor the audit that caught this.) .claude/launch.jsondefines thefrontend-devpreview-server config (npm --prefix frontend run dev, port 5173) that Claude Code's Browser/preview tooling uses to open a live preview. It expects the backend already reachable atlocalhost:8000— rundocker compose -f docker-compose.yml -f docker-compose.dev.yml up -dfirst (see Commands inAGENTS.md), then start the preview.
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 · 30 lines · 419 tokens per session scan A 087468fe4615
myace CLAUDE.md is an instructions file published in the GitHub repository niels-emmer/myace (1 stars, last pushed 2d ago), licensed MIT. It adds 419 tokens to every session, about $0.0021 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
next.js AGENTS.md
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.