OPENCODE PUB_DATE: 2026.05.15

OPENCODE GETS LOCAL, PERSISTENT MEMORY WITH A MEMPALACE PLUGIN

OpenCode gets persistent, local memory via a MemPalace plugin that saves chats and a lightweight knowledge graph. This TypeScript plugin auto-saves every OpenC...

OpenCode gets local, persistent memory with a MemPalace plugin

OpenCode gets persistent, local memory via a MemPalace plugin that saves chats and a lightweight knowledge graph.

This TypeScript plugin auto-saves every OpenCode turn to MemPalace’s local vector store, with background indexing and no cloud or cron needed. It hooks chat.message and session.idle to persist dialogue and extract facts into a small knowledge graph, aiming for fast, private recall details.

Setup is a few file edits (plugin entry, MCP command, instructions) and a restart. The net effect: assistants can reuse prior context and decisions across sessions without touching external services guide.

[ WHY_IT_MATTERS ]
01.

Local, persistent memory means fewer re-prompts and faster iterations for internal agents.

02.

Keeping history off-cloud reduces privacy and compliance headaches.

[ WHAT_TO_TEST ]
  • terminal

    Measure retrieval accuracy/latency versus a stateless baseline on recent project chats and decisions.

  • terminal

    Stress-test memory growth: index size, search speed, and startup time with thousands of turns.

[ BROWNFIELD_PERSPECTIVE ]

Legacy codebase integration strategies...

  • 01.

    If you already use OpenCode internally, pilot the plugin in a sandbox and align storage paths with data retention policies.

  • 02.

    Add lightweight redaction before persistence to avoid storing sensitive identifiers.

[ GREENFIELD_PERSPECTIVE ]

Fresh architecture paradigms...

  • 01.

    Design agents around a local RAG layer from day one; treat MemPalace as the default session store.

  • 02.

    Model key entities for the knowledge graph (services, runbooks, incidents) to improve targeted recall.

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