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 add-adaptive-cardgit 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/add-adaptive-card)<a href="https://agentmods.dev/skills/microsoft/skills-for-copilot-studio/add-adaptive-card"><img src="https://agentmods.dev/badge/skills/microsoft/skills-for-copilot-studio/add-adaptive-card/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/skills/microsoft/skills-for-copilot-studio/add-adaptive-card"><img src="https://agentmods.dev/badge/skills/microsoft/skills-for-copilot-studio/add-adaptive-card.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00047 | $0.01656 |
| Opus 5 | $0.00023 | $0.00828 |
| Sonnet 5 | $0.00009 | $0.00331 |
| Haiku 4.5 | $0.00005 | $0.00166 |
Grade A, and why
add-adaptive-card 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 10d 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 — 179 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Add Adaptive Card
Add an AdaptiveCardPrompt node to an existing Copilot Studio topic. Use this for all Adaptive Card scenarios — display-only cards, input forms, and confirmation flows.
Instructions
-
Auto-discover the agent directory:
Glob: agents/**/agent.mcs.ymlNEVER hardcode an agent name.
-
Clarify requirements from the user if not specified:
- Which topic should the card be added to?
- Which card type (form, info, confirmation)?
- What fields, labels, and placeholders are needed?
- Which topic variables should receive the submitted values?
-
Read the target topic file to understand its structure and find the correct insertion point.
-
Verify the schema if needed:
# Copilot Studio node schema node ${CLAUDE_SKILL_DIR}/../../scripts/schema-lookup.bundle.js summary AdaptiveCardPrompt # Adaptive Cards element schema (v1.6 — the version supported by Copilot Studio) node ${CLAUDE_SKILL_DIR}/../../scripts/schema-lookup.bundle.js ac-summary TextBlock node ${CLAUDE_SKILL_DIR}/../../scripts/schema-lookup.bundle.js ac-summary Input.Text node ${CLAUDE_SKILL_DIR}/../../scripts/schema-lookup.bundle.js ac-search Action -
Select and adapt the template from card-templates.md matching the requested type.
-
Generate unique IDs for all new nodes (format:
<nodeType>_<6-8 random alphanumeric>). -
Insert the node(s) at the correct position in the
actionsarray using Edit. -
Validate the updated topic file:
node ${CLAUDE_SKILL_DIR}/../../scripts/schema-lookup.bundle.js validate <topic-file.yml> -
Inform the user that they must push (VS Code Extension) and publish (Copilot Studio UI) before testing with
/chat-with-agentor/run-tests.
AdaptiveCardPrompt Structure
AdaptiveCardPrompt is the correct node kind for all Adaptive Cards in Copilot Studio. The card JSON is embedded as a multiline YAML literal string under card: |.
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 10d ago First seen · 179 lines · 47 tokens per session scan A 814d76960439
add-adaptive-card is a skill published in the GitHub repository microsoft/skills-for-copilot-studio (437 stars, last pushed yesterday), licensed MIT. It adds 47 tokens to every session and 1,656 once invoked, about $0.0002 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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