CLAUDE.md said ZeroClaw "imports this as a Cargo feature (clawhdf5
feature flag)" and uses clawhdf5 as its memory backend; the agent crate
called itself the "ZeroClaw agent memory HDF5 backend"; the migrator
claimed to read "the ZeroClaw layout". Checked on 2026-09-25 against
ZeroClaw v0.8.5 (its latest release), the osobh/zeroclaw fork (on
v0.8.5) and both histories back to February 2026:
- no `clawhdf5` feature, dependency or memory backend has ever existed
in ZeroClaw; its backends are sqlite, lucid, postgres, qdrant,
markdown and none, behind its own `Memory` trait;
- ZeroClaw's SQLite schema is a single `memories` table (id, key,
content, category, embedding, created_at, updated_at); the
migrator's memory_chunks/sessions/entities/relations layout never
existed in ZeroClaw, so it cannot read a ZeroClaw database.
Decision: withdraw the claims (as with OpenClaw); clawhdf5 is a
standalone library with no framework integration. The migrator's
default layout is documented as its own. ZEROCLAW_VERSION keeps its name
and value (it is the persisted `edgehdf5_version` writer tag) with a
doc comment saying it is unrelated to ZeroClaw.
Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>
The docs described a "drop-in" OpenClaw memory backend enabled with
`memory.backend = "clawhdf5"`. Checked against OpenClaw's source and
docs (v2026.2.26 through v2026.9.6): that config was never valid —
v2026.2-v2026.7 accepted only "builtin"/"qmd" and rejected unknown
keys, so a Gateway given it refuses to start, and v2026.8.1 (OpenClaw
2.0) removed the key. No plugin was ever built (no manifest, no
registration, no tools), nothing was tested against OpenClaw, the
linked github.com/redclawsystems/openclaw is a 404, and
@redclaw/clawhdf5 was never published.
Decision (2026-09-25): not pursuing an OpenClaw plugin for now; ZeroClaw
is the integration target.
- Remove openclaw-integration.md, openclaw-config.md and
migration-guide.md; add docs/openclaw.md: the status, what a memory
plugin needs against v2026.9.6 (plugins.slots.memory, manifest with
kind "memory", registerMemoryCapability / MemorySearchManager,
prebuilt native packages), and what this repo has as building blocks.
- README, QUICKSTART, USE_CASES, ROADMAP (Track 7 withdrawn), CLAUDE.md
and the `openclaw` module docs describe ClawhdfBackend as what it is:
a Markdown-oriented library backend, not an OpenClaw plugin. The
QUICKSTART example is corrected (the old one called a three-argument
create that does not exist) and states its limits.
- packages/clawhdf5-node: marked unpublished and broken, "private": true
so it cannot be published by accident; its bugs (snake_case vs
camelCase fields, wrong addon path, no way to store an embedding,
wrong WAL name) are recorded in docs/known-issues.md.
- Two broken rustdoc links fixed along the way.
Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>
