M365 Declarative Agent Debugging Skill
Debug non-functional M365 Copilot declarative agents.
npx skills add majiayu000/claude-skill-registry --skill m365-agent-debugging-fabioc-aloha-youtube-mcp-vscode --agent claude-code
Same command for any agent — swap --agent for codex, cursor, copilot.
Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.
# M365 Declarative Agent Debugging Skill > Debug non-functional M365 Copilot declarative agents. ## ⚠️ Staleness Warning M365 Copilot and Teams platform APIs are in rapid evolution. Schema versions, capabilities, and tooling change frequently. **Refresh triggers:** - New declarativeAgent schema versions - M365 Agents Toolkit updates (formerly Teams Toolkit) - New M365 Copilot capabilities - Developer Portal changes **Last validated:** February 2026 (Schema v1.6+, M365 Agents Toolkit with `@m365agents` chat participant) **Check current state:** [Declarative Agent Schema](https://learn.microsoft.com/en-us/microsoft-365-copilot/extensibility/declarative-agent-manifest), [M365 Agents Toolkit](https://github.com/OfficeDev/TeamsFx) --- ## Available MCP Tools The **M365 Agents Toolkit** exposes MCP tools via the `@m365agents` chat participant. Use these **before manual debugging**: | Tool | When to Use | | ---- | ----------- | | `mcp_m365agentstoo_get_schema` | Validate manifest structure — get the **current** app manifest (v1.19), declarative agent (v1.0), or API plugin (v2.1) schema | | `mcp_m365agentstoo_troubleshoot` | Diagnose common issues — schema validation failures, sideloading e
- ⚠️ Staleness Warning
- Available MCP Tools
- Schema Version Validation
- Capability Compatibility
- Manifest Limits (v1.6)
- Icon Requirements
- Debugging Workflow
- Package Checklist
- Symptom → Cause
- Memory via OneDrive
- Deployment Flow
- Synapses
What does the M365 Declarative Agent Debugging Skill skill do?
Debug non-functional M365 Copilot declarative agents.
How do I install it?
Run `npx skills add majiayu000/claude-skill-registry --skill m365-agent-debugging-fabioc-aloha-youtube-mcp-vscode --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.
Where does this skill come from?
From majiayu000/claude-skill-registry, a repository with 534 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.
Is a popular skill a good skill?
Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.