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/microsoft/eval-guide/copilot-instructionsgit clone --depth 1 https://github.com/microsoft/eval-guideWhat 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 | $0.00422 | $0.00422 |
| Opus 5 | $0.00211 | $0.00211 |
| Sonnet 5 | $0.00084 | $0.00084 |
| Haiku 4.5 | $0.00042 | $0.00042 |
Grade A, and why
eval-guide 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
Eval Guide — Copilot Instructions
This repository is an AI agent evaluation toolkit for Copilot Studio. It provides structured methodologies for planning, generating, running, and interpreting AI agent evaluations.
Quick Reference
- Prompt files are in
.github/prompts/— attach the relevant one when helping with eval tasks - Full methodology is the 10-step playbook in
skills/eval-guide/playbook.md(canonical spine);AGENTS.mdat the repo root is the cross-tool summary - Eval runner script is at
skills/eval-guide/scripts/eval-runner.js
Skill Routing
| Task | Prompt File |
|---|---|
| Full eval lifecycle | eval-guide.prompt.md |
| Create eval plan | eval-suite-planner.prompt.md |
| Generate test cases | eval-generator.prompt.md |
| Interpret results | eval-result-interpreter.prompt.md |
| Triage failures | eval-triage-and-improvement.prompt.md |
| Methodology Q&A | eval-faq.prompt.md |
Key Conventions
- CSV format for Copilot Studio import: exactly 2 columns —
Question,Expected response. The testing method is assigned per row in the Copilot Studio Evaluate tab after import (not a CSV column); other methodology metadata lives in the companion.docxmanifest - Valid test methods (assigned in the UI):
General quality,Compare meaning,Text similarity,Exact match,Keyword match(core five), plusCapability useandCustom(extensions) - Always explain reasoning — users should learn the methodology, not just receive artifacts
- For planner output, prefer the interactive HTML review page over long chat summaries; keep chat to artifact paths and blockers
- Include at least 1 adversarial/safety eval set or case in every eval plan
- Group test cases by eval set into separate CSV files
- Stages 0-2 (Discover, Plan, Generate) work without a running agent
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 · 31 lines · 422 tokens per session scan A a3450652182c
eval-guide copilot-instructions.md is an instructions file published in the GitHub repository microsoft/eval-guide (127 stars, last pushed 2mo ago), licensed MIT. It adds 422 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 2026-08-30.
Other instructions, from other repositories
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.
buildNext
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).
next.js AGENTS.md
Instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
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).
spec-kit 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.
langchain 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.