agent-framework copilot-instructions.md

Repository guidance for Microsoft Agent Framework, including its code layout and architectural decision records. An architectural decision record is a document explaining an important technical choice and why it was made.

In plain words
What is it for?
Use it when working in the framework’s Python, .NET, or documentation directories, or when proposing changes that need a new decision record.
Why use it?
It tells contributors where implementations and design documents belong and provides a consistent way to record architectural changes and their trade-offs.

Instructions file for GitHub Copilot

Install

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.

agentmods
npx agentmods add instructions/microsoft/agent-framework/copilot-instructions
Clone the repo
git clone --depth 1 https://github.com/microsoft/agent-framework

Made for: GitHub Copilot.

Per session 211 This file is loaded in full into every session.
When invoked 211 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5 $0.00211 $0.00211
Opus 5 $0.00105 $0.00105
Sonnet 5 $0.00042 $0.00042
Haiku 4.5 $0.00021 $0.00021

Measured yesterday against content hash 0da50ae6b9e4, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

agent-framework 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.

.github/copilot-instructions.md · 20 lines

What it actually says

GitHub Copilot Instructions

Microsoft Agent Framework - a multi-language framework for building, orchestrating, and deploying AI agents.

Repository Structure

  • python/ - Python implementation → see python/AGENTS.md
  • dotnet/ - C#/.NET implementation → see dotnet/AGENTS.md
  • docs/ - Design documents and architectural decision records

Architectural Decision Records (ADRs)

ADRs in docs/decisions/ capture significant design decisions and their rationale. They document considered alternatives, trade-offs, and the reasoning behind choices.

Templates:

  • adr-template.md - Full template with detailed sections
  • adr-short-template.md - Abbreviated template for simpler decisions

When proposing architectural changes, create an ADR to capture options considered and the decision rationale. See docs/decisions/README.md for the full process.

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.

  1. yesterday First seen · 20 lines · 211 tokens per session scan A 0da50ae6b9e4

Subscribe to this mod's changes

agent-framework copilot-instructions.md is an instructions file published in the GitHub repository microsoft/agent-framework (13,222 stars, last pushed 2d ago), licensed MIT. It adds 211 tokens to every session, about $0.0011 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.