Schema | headless-unity-mcp

headless-unity-mcp

Describes the environment variables required to run the server.

Name	Required	Description	Default
No arguments

Features and capabilities supported by this server

Capability	Details
`tools`	{ "listChanged": true }
`logging`	{}
`prompts`	{ "listChanged": false }
`resources`	{ "subscribe": false, "listChanged": false }
`extensions`	{ "io.modelcontextprotocol/ui": {} }
`experimental`	{}

Functions exposed to the LLM to take actions

Name	Description
unity_compileA	Import and compile all assemblies. The verdict is a `error CS` grep of the unity log, never the exit code — unity exits 0 on compile errors.
unity_testA	Run EditMode and/or PlayMode tests. The results XML is the evidence: a missing XML is a FAIL, any result="Failed" is a FAIL. Returns parsed per-platform totals.
unity_sceneA	(Re)generate a target's scene by invoking its configured `scene_method`. Only for projects that author scenes from code. Call unity_targets to list target names.
unity_buildB	Build the standalone player for a target, via its configured `build_method`. Call unity_targets to list target names.
unity_shotA	Launch the built player and screenshot its window by CGWindowID. Needs an existing build, the macOS Screen Recording grant, and an unlocked screen. Returns the PNG's path — read it in a throwaway subagent, not your main context.
unity_targetsA	List the build targets this project defines in unity-mcp.toml. Never takes the lock.
unity_statusA	Who, if anyone, holds the machine lock right now. Never takes the lock.

Interactive templates invoked by user choice

Name	Description
No prompts

Contextual data attached and managed by the client

Name	Description
No resources

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