Mycelium Extra

Plan an analysis. Approve what runs. Check the execution record.

Use it in Claude Code, Codex or OpenCode, alongside Mycelium or in an ordinary repository. Start small and add tools when you need them.

Choose your tier

Tier	Tools	What you get
Plan	grill	A sourced plan before writing or running code.
Run with approval	Add init and plan approval	Covered execution checks, input pins, and receipts.
Verify reportable work	Add a pinned run plan and verify	Check the execution record and save provenance after confirmation.
Full project workflow	Add structure, review, handoff, hardening, and Mycelium	Coordinate the analysis lifecycle and prevent recurring mistakes.

Only need a plan? Install the plugin and invoke grill. Ready to run? Follow Tier 2 in the usage guide. See the full analysis workflow diagram for the path from question to report. Claude Code and OpenCode use /mycelium-extra:<skill>; Codex uses $mycelium-extra:<skill>.

Start here

• Installation and host compatibility
• Usage tiers
• A day with Mycelium Extra
• A worked example
• Exercise: one success, one stop

Look up details

• Skill reference
• Approval gate
• Verification reference
• Advanced features
• Validation recipes
• Using Mycelium together with Extra