Cartographer

Overview

All subagent dispatches use disk-mediated dispatch. See shared/dispatch-convention.md for the full protocol.

Living architectural map of the codebase that accumulates across sessions. After exploration, captures what was learned. Before tasks, surfaces relevant structural knowledge. Subagents receive module-specific context so they don't make wrong assumptions.

Core principle: The agent that re-discovers the same codebase every session wastes the first 20% of every task. The Cartographer remembers the terrain.

Announce at start: "I'm using the cartographer skill to [record what I learned about this area / consult the codebase map / load module context for a subagent]."

When to Use