Borrowing it
Nothing to install: this file belongs to lucamezzalira/mfe-skills. 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/lucamezzalira/mfe-skills/main/.github/copilot-instructions.mdgit clone --depth 1 https://github.com/lucamezzalira/mfe-skillsWrote 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/lucamezzalira/mfe-skills/copilot-instructions)<a href="https://agentmods.dev/instructions/lucamezzalira/mfe-skills/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/lucamezzalira/mfe-skills/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/lucamezzalira/mfe-skills/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/lucamezzalira/mfe-skills/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 | $0.00261 | $0.00261 |
| Opus 5 | $0.00130 | $0.00130 |
| Sonnet 5 | $0.00052 | $0.00052 |
| Haiku 4.5 | $0.00026 | $0.00026 |
Grade A, and why
mfe-skills 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 10d 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 repository instructions
Use this file as the Copilot-native entry point for MFE governance.
Canonical source
AGENTS.mdis the canonical cross-agent governance baseline in this repository.- This file mirrors the highest-value instructions for Copilot and points to
AGENTS.mdfor full context.
Boundary governance defaults
When reviewing or generating micro-frontend code:
- Apply the eight MFE boundary rules from
AGENTS.md. - Prioritise Critical violations first (cross-MFE imports, shared state across boundaries).
- Keep shell responsibilities thin: first route segment, platform chrome, fallbacks.
- Keep MFE contracts minimal: identifiers only, not full domain objects.
- Prefer runtime remote discovery over version-pinned shell remotes.
Additional governance extensions
- Feature flags for behaviour belong inside owning MFEs.
- Edge compute should be justified (canary, strangler, traffic steering).
- SSR ownership should stay route/domain based with clear team accountability.
- Use architecture fitness functions in monorepos to enforce boundaries continuously.
Response style for Copilot reviews
- Cite rule numbers when flagging violations.
- Return findings by severity order: Critical, High, Medium.
- Include concise remediation steps for each violation.
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.
- 10d ago First seen · 32 lines · 261 tokens per session scan A 7ae479a31381
mfe-skills copilot-instructions.md is an instructions file published in the GitHub repository lucamezzalira/mfe-skills (51 stars, last pushed 15d ago), licensed MIT. It adds 261 tokens to every session, about $0.0013 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
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).
spec-kit AGENTS.md
AGENTS.md instructions for github/spec-kit, covering agents.md, about spec kit and specify, quickstart — add a new integration in 5 steps, integration architecture and integrationmanifest — file tracking.
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.