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hermes-agent/plugins/memory/openviking
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fix(backup): capture memory-provider state stored outside HERMES_HOME (#50325) 
hermes backup only walks HERMES_HOME, so memory providers that keep
config/credentials in home-anchored dotdirs (honcho -> ~/.honcho,
hindsight -> ~/.hindsight, openviking -> ~/.openviking) lost that data
across a backup/import cycle — the peer IDs, session pairings, and API
keys never made it into the archive.

Add an optional MemoryProvider.backup_paths() hook (default []). The
active provider declares its external paths; backup resolves them from
config only (no init, no network), archives the ones under the home dir
into a reserved _external/ subtree encoded relative to home, and import
restores them to their original location with a home-anchored traversal
guard and 0600 on credential-shaped files. Paths outside home are
skipped as non-portable.

honcho, hindsight, and openviking override the hook. E2E-validated full
backup->import cycle plus 7 new tests.
2026-06-21 12:03:46 -07:00
..
__init__.py fix(backup): capture memory-provider state stored outside HERMES_HOME (#50325) 2026-06-21 12:03:46 -07:00
plugin.yaml feat(memory): improve OpenViking setup UX 2026-06-17 01:02:38 +08:00
README.md fix(openviking): adapt memory provider for current api 2026-06-18 16:58:11 +08:00

README.md

OpenViking Memory Provider

Context database by Volcengine (ByteDance) with filesystem-style knowledge hierarchy, tiered retrieval, and automatic memory extraction.

Requirements

  • pip install openviking
  • OpenViking server running (openviking-server)
  • Embedding + VLM model configured in ~/.openviking/ov.conf

Setup

hermes memory setup    # select "openviking"

The setup can link to an existing ~/.openviking/ovcli.conf, copy its current connection values into Hermes, or create a minimal ovcli.conf when one does not exist.

Or manually:

hermes config set memory.provider openviking
echo "OPENVIKING_ENDPOINT=http://localhost:1933" >> ~/.hermes/.env

Config

All config via environment variables in .env:

Env Var Default Description
OPENVIKING_ENDPOINT http://127.0.0.1:1933 Server URL
OPENVIKING_API_KEY (none) User/admin API key for authenticated servers
OPENVIKING_ACCOUNT default Tenant account for local/trusted mode
OPENVIKING_USER default Tenant user for local/trusted mode
OPENVIKING_AGENT hermes Hermes peer ID in OpenViking, used for peer-scoped memories

When OPENVIKING_API_KEY is set, Hermes lets OpenViking derive account/user identity from the key. In local or trusted deployments without an API key, Hermes sends OPENVIKING_ACCOUNT and OPENVIKING_USER as identity headers.

Tools

Tool Description
viking_search Semantic search with fast/deep/auto modes
viking_read Read content at a viking:// URI (abstract/overview/full)
viking_browse Filesystem-style navigation (list/tree/stat)
viking_remember Store a fact for extraction on session commit
viking_add_resource Ingest URLs/docs into the knowledge base