Borrowing it
Nothing to install: this file belongs to commerce-atoms/agents. 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/commerce-atoms/agents/main/.github/copilot-instructions.mdgit clone --depth 1 https://github.com/commerce-atoms/agentsWrote 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/commerce-atoms/agents/copilot-instructions)<a href="https://agentmods.dev/instructions/commerce-atoms/agents/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/commerce-atoms/agents/copilot-instructions/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/commerce-atoms/agents/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/commerce-atoms/agents/copilot-instructions.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 | $0.00357 | $0.00357 |
| Opus 5.5 | $0.00143 | $0.00143 |
| Sonnet 5.5 | $0.00071 | $0.00071 |
| Haiku 4.5 | $0.00036 | $0.00036 |
Grade A, and why
agents 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 1mo 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
GitHub Copilot. @commerce-atoms/agents (kit authoring)
Copilot is operating in the @commerce-atoms/agents npm package itself, not in a Hydrogen storefront. Read AGENTS.md and CONTRIBUTING.md for full context.
The shipped product lives under kit/ and has its own kit/copilot-instructions.md. Those rules are for storefront repos and do not govern this repo.
Constraints for autocomplete in this repo
- TypeScript everywhere. All source under
src/andbin/is.ts. Never suggest a.jsor.mjsfile. Useimportsyntax with.jsextensions in relative imports (NodeNext resolution). - Strict mode. No
any, no implicitany, noas anycasts. If a type can't be derived, ask for an explicit interface in the body. - Stable test pattern. Tests use
node:testandnode:assert/strict. Co-locatefoo.test.tsnext tofoo.ts. Don't suggest Jest, vitest, or other runners. kit/is content, not config for this repo. Don't surface rules fromkit/rules/core/*as if they applied here. They describe Hydrogen storefront discipline.- Don't suggest
npm publishfrom a workstation. Releases go via tag +.github/workflows/publish.yml.
When in doubt, suggest reading CONTRIBUTING.md.
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.
- 1mo ago Changed 1a17a90e3dd3
- 2mo ago First seen · 16 lines · 357 tokens per session scan A 5f4705ea2d8c
agents copilot-instructions.md is an instructions file published in the GitHub repository commerce-atoms/agents (1 stars, last pushed 1mo ago), licensed MIT. It adds 357 tokens to every session, about $0.0014 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.
agents copilot-instructions.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| agents copilot-instructions.mdcommerce-atoms/agents | Instructions file | 1 | 1mo ago | MIT | A | 357 | GitHub Copilot |
| plugin-files-modegriddynamics/rosetta | Instructions file | 370 | yesterday | Apache-2.0 | A | 236 | GitHub Copilot |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 9,719 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | yesterday | MIT | A | 7,461 | Codex, OpenCode |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | yesterday | MIT | A | 4,680 | Codex, OpenCode |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 5,516 | GitHub Copilot |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 3,093 | GitHub Copilot |