Data

Plugin ID: clawql-data
Package: packages/clawql-data — DataPlugin

Structured SQL via pluggable data engine plugins (CLAWQL_DATA_ENGINE, default duckdb).

Effect-TS interior: driver / inventory IO → DataEnginePlugin (Effect.gen) → DataEngineService Layer → data_*Program / runDataEffect. Promise facades remain only at MCP handlers and ClawqlDataStore (lab CLIs).

MCP tools

Tool	Purpose
`data_query`	Read-only SQL (`SELECT` / `WITH` / `DESCRIBE` / `SHOW` / `SUMMARIZE`)
`data_ingest`	Load `matters` / `matter_documents` / `open_facts`; optional filesystem walk
`data_status`	Engine + database path

Enable

Env	Default	Effect
`CLAWQL_ENABLE_DATA=1`	off	Register `DataPlugin` and the `data_*` tools
`CLAWQL_DATA_PATH`	vault `lab/matters.duckdb` or `:memory:`	Backend database path (engine-specific)
`CLAWQL_DATA_ENGINE`	`duckdb`	Registered engine plugin id (`registerDataEngine`)

Helm: enableData: true.