@yishan-io/pi-memory

Pi memory extension package for Yishan.

What it provides

This package adds Pi-facing memory integration on top of the existing Yishan memory backend.

Current MVP features:

• injects ~/.yishan/memory/PERSONA.md when allowed
• injects .my-context/MEMORY.md and a shallow .my-context/ listing into Pi context
• registers memory_search backed by yishan memory search --output json
• defaults project-scoped search to YISHAN_PROJECT_ID when available
• registers memory_read for reading durable files under .my-context/
• registers memory_store for writing durable entries into .my-context/MEMORY.md
• registers memory_reconcile as a repair/admin path backed by yishan memory reconcile

Architecture

This package uses a hybrid design:

• packages/pi-memory owns Pi extension behavior and Pi tools
• Yishan CLI/daemon still owns file watching, background indexing, reconcile, and SQLite/FTS search backend
• workflow guidance should come from Pi's context-memory skill

Installation

As a Pi package:

pi install /absolute/path/to/packages/pi-memory

Or from a checked-out monorepo path:

pi install ./packages/pi-memory

Backend requirement

Indexed search depends on the Yishan CLI memory backend being available:

yishan memory search --output json <query>

memory_reconcile depends on:

yishan memory reconcile

Tools

Tool	Purpose
memory_search	Search durable memory through the indexed Yishan backend (defaults to current project when YISHAN_PROJECT_ID is set)
memory_read	Read one durable memory file under .my-context/
memory_store	Write one durable entry into .my-context/MEMORY.md
memory_reconcile	Repair/rebuild the memory index

Current limitations

• Indexed search still depends on Yishan CLI/daemon.
• This MVP does not migrate the old summarization pipeline into the package.
• context-memory remains the workflow/policy layer; this package does not replace it.

Development

Package-local checks:

bun run --cwd packages/pi-memory typecheck
bun run --cwd packages/pi-memory lint
bun run --cwd packages/pi-memory test

License

MIT — see LICENSE.