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/agent365-samples/claude-mdgit clone --depth 1 https://github.com/microsoft/Agent365-SamplesWhat 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 | $0.02126 | $0.02126 |
| Opus 5 | $0.01063 | $0.01063 |
| Sonnet 5 | $0.00425 | $0.00425 |
| Haiku 4.5 | $0.00213 | $0.00213 |
Grade A, and why
Agent365-Samples CLAUDE.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.
How it starts
The opening of the file, as written. The whole thing — 275 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md
This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
Repository Overview
This is the Agent365-Samples repository containing sample agents demonstrating the Microsoft Agent 365 SDK across three languages (C#/.NET, Python, Node.js/TypeScript) and multiple AI orchestrators (OpenAI, Claude, Semantic Kernel, Agent Framework, LangChain, CrewAI, etc.).
The Microsoft Agent 365 SDK extends the Microsoft 365 Agents SDK with enterprise-grade capabilities for observability, notifications, MCP tooling, and runtime utilities.
Repository Structure
Agent365-Samples/
├── dotnet/ # C#/.NET samples
│ ├── agent-framework/ # Agent Framework orchestrator
│ └── semantic-kernel/ # Semantic Kernel orchestrator
├── python/ # Python samples
│ ├── agent-framework/
│ ├── openai/
│ ├── claude/
│ ├── crewai/
│ └── google-adk/
├── nodejs/ # Node.js/TypeScript samples
│ ├── openai/
│ ├── claude/
│ ├── langchain/
│ ├── devin/
│ ├── n8n/
│ ├── perplexity/
│ └── vercel-sdk/
├── agent-platforms/ # Agent platform samples (deployed into a SaaS platform)
│ └── salesforce/ # Salesforce/Apex samples (SFDX projects)
│ └── apex-observability/ # Native Apex Agent 365 observability + tool boundary
├── docs/ # Repository-wide documentation
│ └── design.md # Architectural patterns
├── prompts/ # AI development prompts
└── scripts/ # Utility scripts
Each language directory contains a docs/design.md with language-specific design patterns.
Common Development Commands
C# / .NET
Build:
dotnet build <path-to-sln-or-csproj>
Run:
dotnet run --project <path-to-csproj>
Solutions:
dotnet/agent-framework/AgentFrameworkSample.slndotnet/semantic-kernel/SemanticKernelSampleAgent.sln
Python
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.
- 2d ago First seen · 275 lines · 2,126 tokens per session scan A 3680223dca74
Agent365-Samples CLAUDE.md is an instructions file published in the GitHub repository microsoft/Agent365-Samples (106 stars, last pushed 29d ago), licensed MIT. It adds 2,126 tokens to every session, about $0.0106 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
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 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).
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.
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.
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).
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.