# Weaviate Foundation

> Use when porting or operating Weaviate-style vector-engine internals: HNSW filtered search (ACORN/SWEEPING/RRE), tombstone deletion, commit-log WAL rotation, and LSMKV memtable flush/compaction/recovery.

- Skill: `ryan-brosas/weaviate-foundation` (Agent Skill, multi-file: 19 files)
- Install (CLI): `npx skillmds@latest add ryan-brosas/weaviate-foundation`
- Raw SKILL.md: https://api.skillmd.com/api/skills/ryan-brosas/weaviate-foundation/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- License: BSD-3-Clause
- Author: ryan-brosas (https://skillmd.com/u/ryan-brosas)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/ryan-brosas/weaviate-foundation

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# Weaviate Foundation

## Foundation contract

This is a cold, source-specific foundation, not an operational procedure. It is
historical, revision-pinned evidence rather than timeless guidance. Current
project source, tests, requirements, and runtime behavior outrank this
projection and decide what ships.

## Provenance and revision

- Source record: `weaviate`; portable upstream identity, license, coverage caveats, and retrieval history are preserved in the index.
- Recorded revision: `adcffc5432aa797c60e3c4e479514054254fae2a`.
- Full provenance, coverage caveats, boundaries, and preserved evidence:
  `references/index.md`.

## Topic map

- Representative topics: ACORN two-hop neighbor expansion; addOne insert path;
  Commit-log rotation; Dead-entrypoint self-repair; ef resolution ladder; HNSW
  filtered-search strategy FSM; Flat-search cutoff; Multivector doc-id mapping.
- Scope and retrieval questions: `references/index.md#use-this-for`.
- Complete capsule chooser: `references/index.md#load-the-matching-source-dump`.
- Detailed grouped map: `references/index.md#capsule-map`.
- Source limitations and portability boundaries: `references/index.md#boundaries`.

## Retrieval

Open the index, choose one capsule matching the active question, and load only
that capsule. Revalidate its cited source and revision before relying on it. Do
not bulk-load the inventory, treat historical claims as current truth, or apply
this foundation as a procedure.