Hipocampus Compaction

Hipocampus Compaction is an AI Engineering skill for Claude Code, published by kevin-hs-sohn in hipocampus.

206 stars10 forkson kevin-hs-sohn/hipocampusAdded 2026/09/05Repository updated 2026/06/08

agent-memoryai-agentai-memoryclaude-codecompaction-treecontext-managementknowledge-managementllmlong-term-memoryopenclawragvector-search

Install in seconds

Install Hipocampus Compaction

Copy Hipocampus Compaction into your Claude Code skills folder. Run the command in your terminal, or review the source on GitHub before installing.

terminal

npx degit https://github.com/kevin-hs-sohn/hipocampus/tree/main/skills/compaction ~/.claude/skills/compaction

Requires Node.js. Downloads this skill only — not the rest of the repository — into your Claude Code skills folder.

Without Node.js

git clone https://github.com/kevin-hs-sohn/hipocampus.git

Clones the whole repository, then copy the skill’s own directory into your skills folder yourself.

In this catalog

Source file: skills/compaction/SKILL.md in kevin-hs-sohn/hipocampus
Installs to: ~/.claude/skills/compaction
Collection: One of 8 skills cataloged from this repository
Category: AI Engineering — 3101 skills

What Hipocampus Compaction does

Hipocampus Compaction builds a five-level memory compaction tree from raw logs into daily, weekly, monthly, and root indices. Use it at session start or from a scheduler to keep search indices current without deleting originals.

Hipocampus Compaction is cataloged under AI Engineering on DirSkills. Hipocampus Compaction comes from a repository tagged agent-memory, ai-agent, ai-memory, claude-code and compaction-tree.

Documentation

README

Excerpt

Memory Compaction Tree

5-level hierarchical index over raw memory logs. Compaction nodes are search indices — originals are never deleted.

Hierarchy

memory/
  ROOT.md                      <- root node (topic index, ~3K tokens, Layer 1)
  2026-03-15.md                <- raw daily log (permanent, append-only)
  daily/2026-03-15.md          <- daily compaction node
  weekly/2026-W11.md           <- weekly compaction node
  monthly/2026-03.md           <- monthly compaction node

Compaction chain: Raw → Daily → Weekly → Monthly → Root

Tree traversal (search): Root → Monthly → Weekly → Daily → Raw

Fixed vs Tentative Nodes

This is the opening of the README. Read the full README on GitHub.

Frequently asked about Hipocampus Compaction

What else does kevin-hs-sohn publish alongside Hipocampus Compaction?
Hipocampus Compaction is one of 8 skills that DirSkills catalogs from kevin-hs-sohn/hipocampus, the repository it ships in. Its siblings there include Hipocampus Core, Hipocampus Core and Hipocampus Core. Each one is a separate skill with its own page in this directory, installs the same way Hipocampus Compaction does, and is maintained by kevin-hs-sohn in that same repository. The rest of the collection is listed on the kevin-hs-sohn/hipocampus page.
How does Hipocampus Compaction compare to other AI Engineering skills?
Hipocampus Compaction ranks #2780 by stars among the 3101 AI Engineering skills in this catalog. The most-starred ones next to it are Architecture Decision Records, AI-First Engineering and Agentic OS. DirSkills ranks by the star count of the repository each skill ships in, so that order reflects how popular those repositories are rather than any review of Hipocampus Compaction against them. Open each page to compare what they document and how they install.