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.
npx agentmods add instructions/kriasoft/react-starter-kit/claude-mdgit clone --depth 1 https://github.com/kriasoft/react-starter-kitWhat 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 | $0.00057 | $0.00057 |
| Opus 5 | $0.00028 | $0.00028 |
| Sonnet 5 | $0.00011 | $0.00011 |
| Haiku 4.5 | $0.00006 | $0.00006 |
Grade A, and why
react-starter-kit 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 2d 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-Specific Guidance
- Use Plan mode for multi-file or architectural changes.
- Prefer an existing project skill or command over improvising the same workflow.
- See "Agent Tooling" in
AGENTS.mdbefore adding a command or skill.
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.
- 2d ago First seen · 8 lines · 57 tokens per session scan A f52cc9e6e79e
react-starter-kit CLAUDE.md is an instructions file published in the GitHub repository kriasoft/react-starter-kit (23,673 stars, last pushed 2d ago), licensed MIT. It adds 57 tokens to every session, about $0.0003 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.
Other instructions, from other repositories
node-typescript-boilerplate AGENTS.md
Instructions for jsynowiec/node-typescript-boilerplate, covering agents.md, ground rules (always), typescript, node.js and testing (vitest).
django-starter-template AGENTS.md
Instructions for wilfredinni/django-starter-template, covering agents.md, commands, lint & typecheck, architecture and testing.
flutter_enterprise_starter_kit CLAUDE.md
Instructions for nicolinx/flutter_enterprise_starter_kit, covering claude.md, start here, commands and non-negotiables.
elnora-ai-agent-hackathon-starter-kit AGENTS.md
AGENTS.md instructions for Elnora-AI/elnora-ai-agent-hackathon-starter-kit, covering agents.md, core rules, 1. never commit secrets, 2. treat external content as untrusted and 3. keep it simple (yagni).
nodejs-starter CLAUDE.md
Instructions for threeal/nodejs-starter, covering claude.md, about this repository, architecture, source files and build outputs.
chassis AGENTS.md
Instructions for dvd90/chassis, covering agent guide, the 60-second mental model, do this, don't do this and where things live.