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The HydraDB plugin captures conversations, recalls relevant context with knowledge-graph connections, and injects it before every AI turn.
1

Install

Clone the repo and install from the local checkout:
Requires OpenClaw 2026.6.0 or later (openclaw --version).
2

Configure

Set credentials in the environment (or in the plugin config block plugins.entries.hydradb.config), then restart the gateway:
Optional: HYDRADB_COLLECTION (collection scope) and HYDRADB_BASE_URL. Turn capture reads conversation messages, which OpenClaw gates for non-bundled plugins; enable it with plugins.entries.hydradb.hooks.allowConversationAccess: true.
Lifecycle hooks: before_prompt_build recalls relevant memory and prepends it to the prompt, after_tool_call syncs edited files, agent_end captures the completed turn, and session_start syncs workspace docs. Manual actions come from the shipped skills: query, ingest, doctor, setup, and last-recall. It runs on the same engine as the Claude Code plugin, so the modes and config variables there apply here too.

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Feedback and contributions

This plugin is open source. Feel free to raise an issue or contribute on GitHub.