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Any harness via MCP

The minimum viable integration anywhere: append the brief to a system prompt, and connect the tool server for depth and writes.

python3 -m memcal.mcp_server   # stdio MCP server
  • Read brief.md for the snapshot; MEMCAL_HOME selects the store.
  • memcal://brief exposes the same snapshot as a resource.
  • Reads (memcal_brief, memcal_open, memcal_search_archive, memcal_conversation, …) expand depth; typed writes (memcal_add, memcal_update, memcal_todo, memcal_answer, …) run as code, no model.
  • MEMCAL_HARNESS / MEMCAL_SESSION attribute turns to their conversation.

Tool tables: MCP server · Recall · Remember · Correct. Native integrations (Hermes, OpenClaw) add per-turn injection and turn archival on top of this boundary.