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Hipocampus

plugin

Persistent memory that survives across sessions. Hipocampus gives your agent a 3-tier memory system (hot/warm/cold) with a self-compressing 5-level compaction tree. Every session, the agent auto-loads a ~3K token topic index (ROOT.md) so it knows what it knows — then retrieves specific details on demand via tree traversal or hybrid search (BM25 + vector via qmd). All memory writes happen through subagents to keep your main session clean. Zero dependencies, zero infrastructure — just markdown fil

Works with: Claude Code (native)
native: this artifact type is that client's own format

Category: AI & Agents — see all ranked ›

Work: Knowledge management

Who it is for: Operations · Researcher

Install (Claude Code):

/plugin marketplace add anthropics/claude-plugins-community
/plugin install hipocampus@claude-community
solid

“4 worked examples, 1 tools documented; short of deep on per-tool docs and a stated limitation”

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Hipocampus scores 43 today. Pro keeps the series, so you can see whether that is a project getting better or one on its way down.

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source ↗  ·  plugin:kevin-hs-sohn/hipocampus/hipocampus

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Measured 2026-09-13  ·  scorer s5  ·  how  ·  something wrong here?