project_history MCP tool

MCP name project_history dispatches to renderer projectHistory.

Does not use hosted quota. Local editor operation.

Get edit history, or perform undo/redo. Editor must be open. Does not use hosted quota. Local editor operation.

Advertised MCP input

The MCP server validates this object with .strict(). Unknown fields are rejected.

Field	Type	Required	Constraints	Default	Description
action	enum("status", "undo", "redo")	no	—	"status"	'status' lists history, 'undo'/'redo' perform the action
steps	integer	no	min 1; max 50	—	Number of steps to undo/redo (default 1)
resultStart	integer	no	min 0; max 9007199254740991	0	First character offset to return. Use 0 for the first call.
resultEnd	integer	no	min 1; max 9007199254740991	8000	Exclusive end offset. resultEnd - resultStart must be at most 8000. Increment resultStart by 8000 to page through large results.

Renderer schema

Authoritative input the editor applies after MCP passthrough or dispatch.

Field	Type	Required	Constraints	Default	Description
action	enum("status", "undo", "redo")	no	—	"status"	—
steps	integer	no	min 1; max 50	—	—

Result window

Every local MCP tool accepts resultStart and resultEnd so large payloads can be paged.

• resultStart — first character offset. Default 0.
• resultEnd — exclusive end offset. Default 8000.
• resultEnd - resultStart must be at most 8000 characters.
• Increment resultStart by 8000 to read the next window.