Skills for Copilot Studio is a plugin for authoring, testing, and troubleshooting standard Microsoft Copilot Studio agents as YAML files from a terminal or editor. It is intended for users of Claude Code, GitHub Copilot CLI, and VS Code who work with Copilot Studio agents. The catalogue add-ons are the plugin's skills, agents, hook, and plugin definition.
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 skills add microsoft/skills-for-copilot-studio --skill int-patternsgit clone --depth 1 https://github.com/microsoft/skills-for-copilot-studioWrote 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/skills/microsoft/skills-for-copilot-studio/int-patterns)<a href="https://agentmods.dev/skills/microsoft/skills-for-copilot-studio/int-patterns"><img src="https://agentmods.dev/badge/skills/microsoft/skills-for-copilot-studio/int-patterns.svg" alt="Measured on agentmods" 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 | $0.00088 | $0.02250 |
| Opus 5 | $0.00044 | $0.01125 |
| Sonnet 5 | $0.00018 | $0.00450 |
| Haiku 4.5 | $0.00009 | $0.00225 |
Grade A, and why
int-patterns 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 7d 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 — 178 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Copilot Studio Pattern Library
Only read the pattern file relevant to the current task — do NOT read all files.
How to use patterns
Patterns are recommendations, not requirements. How you present them depends on your role:
If you are the Advisor agent:
- Present each pattern as a suggestion — explain the challenge it solves and why it's relevant
- Use status-appropriate language:
proven: "This is a proven pattern used in production — consider it for…"recommended: "A recommended approach that works well — consider it for…"experimental: "This is an experimental approach, not yet fully validated — you may want to test thoroughly before adopting"
- Always say "you could consider…" or "a common approach is…", never "you must…"
- Let the user decide — do NOT auto-apply patterns without confirmation
If you are the Author agent:
- When implementing a pattern the user or Advisor has already chosen, read the relevant pattern file for the correct YAML structure
- Do NOT suggest patterns yourself — that is the Advisor's role
- Use the YAML examples as reference for the correct kinds, fields, and structure
Pattern Index
JIT Glossary → jit-glossary.md
Loads customer-specific acronyms into a global variable on first message so the orchestrator can expand them before searching knowledge sources.
Read this pattern when:
- The user wants to add a glossary, acronym list, or terminology table
- Knowledge search quality is poor because the agent doesn't understand internal abbreviations
- The user asks about loading CSV/text data into a variable at conversation start
JIT User Context → jit-user-context.md
Loads the current user's M365 profile (country, department) into global variables for personalized answers.
Read this pattern when:
- The user wants country-aware, department-aware, or role-aware answers
- The agent needs to call the M365 Users connector
- The user asks about personalizing responses based on who is chatting
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.
- 7d ago First seen · 178 lines · 88 tokens per session scan A 3b35d9315c49
int-patterns is a skill published in the GitHub repository microsoft/skills-for-copilot-studio (430 stars, last pushed 3d ago), licensed MIT. It adds 88 tokens to every session and 2,250 once invoked, about $0.0004 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.
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