Introduction

Ijima is the centralized memory service for the Anima ecosystem — the single source of truth for agentic memory across every harness (pi, Tsume, Sakamoto, Wallace, Dominic, opencode, …). It replaces fragmented, per-harness memory stores with one service every agent reads from and writes to, with per-principal isolation, quantitative access control, and full provenance on every stored fact.

What it does

Ijima serves three related capabilities:

1. A memory palace — curated memories organized as project → topic rooms, with importance-weighted recall, semantic search, and a diary per agent.
2. A knowledge graph — subject/predicate/object triples with entity resolution, timelines, and cross-project tunnels.
3. A session repository + mining pipeline — raw agent session turns flow in, an extraction engine (rules tier, optional LLM tier) proposes candidate memories with confidence scores, and a human/agent review queue promotes the good ones into the palace with provenance intact.

Why it exists

Before Ijima, each harness carried its own memory: pi-mempalace SQLite databases per workstation, ZeroClaw’s Discord brain, ad-hoc files. Memory was fragmented (the same insight saved five times, never reconciled), unauditable (no notion of where a fact came from or how much to trust it), and unsecurable (one all-or-nothing bearer token). Ijima makes memory a service: one instance, many principals, capability-scoped access, and a trust tier on every entry.

Ecosystem position

Ijima is the memory plane under Dominic’s orchestration plane:

• Schubert provides the capability algebra (Grassmannian Gr(4,8)) that Ijima uses for authorization, proof-carrying GrantTokens, and rate limiting. Ijima is Schubert’s first and most complete consumer.
• Dominic (meta-orchestrator) dispatches work and federates through Ijima’s control plane; Ijima enforces trust boundaries locally even when Dominic is unreachable.
• pi connects as a thin client (IJIMA_URL / IJIMA_TOKEN), replacing the pi-mempalace extension.
• Proserpina supplies the LLM agent surface for the mining tier (proserpina-agent), cross-repo contract-tested.

The workspace

Ijima is v0.x: interfaces evolve, breaking changes are announced in the CHANGELOG, and the 0.2.0 “Central Brain” release targets a real single-instance deployment with all workstations as thin clients.