microsoft/vscode-copilotstudio is a Visual Studio Code extension for developing Microsoft Copilot Studio agents. It lets users view agents in their environment, clone their editable components, and work on knowledge sources, actions, topics, and triggers as files. The catalogue entries provide instructions, agents, and a skill for using the extension.
Borrowing it
Nothing to install: this file belongs to microsoft/vscode-copilotstudio. 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/microsoft/vscode-copilotstudio/main/AGENTS.mdgit clone --depth 1 https://github.com/microsoft/vscode-copilotstudioWrote 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/microsoft/vscode-copilotstudio/agents-md)<a href="https://agentmods.dev/instructions/microsoft/vscode-copilotstudio/agents-md"><img src="https://agentmods.dev/badge/instructions/microsoft/vscode-copilotstudio/agents-md/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/microsoft/vscode-copilotstudio/agents-md"><img src="https://agentmods.dev/badge/instructions/microsoft/vscode-copilotstudio/agents-md.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 | $0.05625 | $0.05625 |
| Opus 5.5 | $0.02250 | $0.02250 |
| Sonnet 5.5 | $0.01125 | $0.01125 |
| Haiku 4.5 | $0.00562 | $0.00562 |
Grade A, and why
vscode-copilotstudio 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 4d 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 — 470 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md
This file provides guidance to AI coding agents and automation harnesses when working with code in this repository.
Project Overview
This is the Copilot Studio Extension for Visual Studio Code - a hybrid TypeScript/C# project that provides a full-featured VS Code extension for editing Microsoft Copilot Studio agents. The extension enables developers to clone agents locally, edit components (topics, triggers, actions, knowledge sources) in YAML format, and sync changes bidirectionally with cloud environments. IntelliSense is powered by a Language Server Protocol (LSP) backend written in C#.
Current State: Generally Available (GA)
Documentation: https://learn.microsoft.com/en-us/microsoft-copilot-studio/visual-studio-code-extension-overview
Build constraint: Full .NET restore/build currently depends on internal Microsoft.Agents.* NuGet packages. Migration from the internal Dataverse authoring SDK to PAC CLI delegation is in progress to make external builds reproducible.
Build and Test Commands
TypeScript / VS Code Extension
The package.json is located at src/vscode-extensions/microsoft-powerplatformlang-extension/package.json. All npm commands must be run from that directory.
# Change to the extension directory first
cd src/vscode-extensions/microsoft-powerplatformlang-extension
# Install dependencies
npm install
# The parent src/vscode-extensions/.npmrc sets omit-lockfile-registry-resolved=true
# so lockfile updates omit registry/feed-specific resolved URLs. Do not add
# registry or feed URLs to committed .npmrc or package-lock.json files;
# registry/feed/auth configuration belongs in user npm config or CI restore-time
# configuration.
# Build everything (LSP + type check + esbuild bundle)
npm run compile
# Build only the C# language server for current platform
npm run buildLsp
# Watch LSP for changes (rebuilds on save)
npm run watchLsp
# Type check only (no emit)
npm run check-types
# Lint
npm run lint
# Run VS Code extension tests
npm test
# Package a target-specific pre-release VSIX (default target: win32-x64)
npm run package -- --target win32-x64
# Watch TypeScript compilation
npm run watch
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.
- 4d ago Changed · +37 lines · +493 tokens per session 2b8b4ab817b3
- 10d ago Changed 6b7a21e80f4f
- 1mo ago Changed · +2 lines · +167 tokens per session 3aba8a18899c
- 1mo ago Changed 083b9276b995
- 1mo ago First seen · 431 lines · 4,965 tokens per session scan A b304c4a87e17
vscode-copilotstudio AGENTS.md is an instructions file published in the GitHub repository microsoft/vscode-copilotstudio (115 stars, last pushed yesterday), licensed MIT. It adds 5,625 tokens to every session, about $0.0225 per session on Opus 5.5. 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
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).
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.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).
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 copilot-instructions.md
Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).
deno copilot-instructions.md
Copilot instructions for denoland/deno, covering deno development guide for github copilot, network access, high level overview, key directories and key files to understand first.