agent-governance-toolkit AGENTS.md

Repository instructions for Microsoft’s Agent Governance Toolkit, a collection of packages for controlling how AI agents run. A monorepo is one repository containing multiple related packages; these instructions explain where changes belong and which nested rules apply.

In plain words
What is it for?
Use them when modifying governance policies, identity, execution sandboxes, reliability tools, compliance code, SDKs, demos, or publishing workflows.
Why use it?
They help an agent route changes to the correct language SDK, package, documentation area, or example while accounting for the repository’s current layout.

Instructions file for CodexOpenCode

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-governance-toolkit/agents-md
Clone the repo
git clone --depth 1 https://github.com/microsoft/agent-governance-toolkit

Made for: Codex, OpenCode.

Per session 1,640 This file is loaded in full into every session.
When invoked 1,640 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 $0.01640 $0.01640
Opus 5 $0.00820 $0.00820
Sonnet 5 $0.00328 $0.00328
Haiku 4.5 $0.00164 $0.00164

Measured 2d ago against content hash cc8e6b5cc19b, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

agent-governance-toolkit AGENTS.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 2d 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.

AGENTS.md · 131 lines

How it starts

The opening of the file, as written. The whole thing — 131 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Agent Governance Toolkit - Repository Instructions

Project Overview

Agent Governance Toolkit is a multi-package OSS monorepo for runtime governance of AI agents: policy enforcement, zero-trust identity, execution sandboxing, SRE, compliance, examples, docs, demos, SDKs, and publishing pipelines.

Use this file for repository-wide routing. When you enter a subdirectory that has its own AGENTS.md, that narrower file takes precedence.

Repository Layout Status

This routing reflects the repo as it exists today while reserving room for approved language SDK migrations. Language SDKs may live in standalone top-level directories at the repository root. For contributor routing, treat agent-governance-dotnet/, agent-governance-golang/, and agent-governance-rust/ as the canonical standalone language homes.

Treat current paths as a point-in-time representation, not a permanent architecture promise. When a standalone top-level implementation exists for a language, changes for that language should go there rather than into the repo root or an older shared SDK path.

Where Changes Belong

Area Path Use it for
Published Python packages agent-governance-python/ First-party reusable Python packages and SDK surfaces meant for direct external consumption
Python runtime and product code */ Runtime code, applications, policy engines, trust, SRE, compliance, and other Python product surfaces that have not moved into the standalone package home
Current shared SDK paths agent-governance-python/agent-mesh/sdks/ Public SDK APIs and language-specific packaging that still live in the shared layout today
Standalone language implementations agent-governance-python/, agent-governance-dotnet/, agent-governance-golang/, agent-governance-rust/, and other agent-governance-* siblings Top-level language-specific implementations at the repository root; use these as the canonical contributor-facing paths
Docs site docs/ Reference docs, tutorials, architecture, package pages
Runnable examples examples/ Self-contained integrations and worked examples
Interactive demos examples/demos/ Live demos, dashboards, real-service walkthroughs
Release automation .github/workflows/ GitHub Actions release, packaging, SBOM, provenance, and publishing automation
GitHub automation .github/ CI, PR automation, issue templates, policy workflows

Read the full file on GitHub · 131 lines

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. 2d ago First seen · 131 lines · 1,640 tokens per session scan A cc8e6b5cc19b

Subscribe to this mod's changes

agent-governance-toolkit AGENTS.md is an instructions file published in the GitHub repository microsoft/agent-governance-toolkit (6,175 stars, last pushed yesterday), licensed MIT. It adds 1,640 tokens to every session, about $0.0082 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.