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/copilot-instructionsgit 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 | $0.00029 | $0.00029 |
| Opus 5 | $0.00015 | $0.00015 |
| Sonnet 5 | $0.00006 | $0.00006 |
| Haiku 4.5 | $0.00003 | $0.00003 |
Grade A, and why
react-starter-kit copilot-instructions.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 yesterday.
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
Read AGENTS.md in the repository root and any subdirectory AGENTS.md files for project context, conventions, and architecture details before making 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.
- yesterday First seen · 2 lines · 29 tokens per session scan A cf03128b427d
react-starter-kit copilot-instructions.md is an instructions file published in the GitHub repository kriasoft/react-starter-kit (23,671 stars, last pushed 8d ago), licensed MIT. It adds 29 tokens to every session, about $0.0001 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).
webiny-js AGENTS.md
AGENTS.md instructions for webiny/webiny-js, covering exploration, persist learnings, code, building and testing.
webiny-js CLAUDE.md
Claude Code instructions for webiny/webiny-js, covering context, claude project guidelines, reading code, development commands and install dependencies (suppress all output – it's noise).
webiny-js copilot-instructions.md
Copilot instructions for webiny/webiny-js, a project described as: Open-source, self-hosted CMS platform on AWS serverless (Lambda, DynamoDB, S3). TypeScript framework with multi-tenancy, lifecycle hooks, GraphQL API, and AI-assisted development via MCP server. Built for developers at large organizations.
serverless-full-stack-webapp-starter-kit AGENTS.md
AGENTS.md instructions for aws-samples/serverless-full-stack-webapp-starter-kit, covering agents.md, commands, install all dependencies, webapp and cdk.
nodejs-starter CLAUDE.md
Instructions for threeal/nodejs-starter, covering claude.md, about this repository, architecture, source files and build outputs.