dsh-rdb

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Relational database workbench for DeepSeek Harness (dsh). Entry: Database in the web sidebar.

Capabilities

Surface	Behavior
Connections	Saved profiles, schema/table/view tree and multi-host selection
Data	Pagination, filters, sorting and inline edits with SQL preview and one transaction
Structure	Columns, indexes and DDL
SQL	Query editor and CSV export
Agent	`db_connections`, `db_schema`, `db_query`, `db_explain`, `db_execute`; global tool switch and per-connection write permission

Drivers and routing

Database	Driver
SQLite	Built-in `node:sqlite`
PostgreSQL	`pg`
MySQL / MariaDB	`mysql2`
Huawei Cloud GaussDB	`gaussdb-node`

Drivers are bundled. Connections accept comma-separated hosts with one shared port. Selection follows target_session_attrs (any, read-write, read-only, primary, standby, prefer-standby) and load_balance_hosts; failed connections reconnect through the same selection rules.

On MySQL, a schema is a database on the same server. A replication channel identifies a standby; read_only / super_read_only identifies read-only mode.

Installation

dsh plugin --profile web add file:./onenightcarnival-dsh-rdb-.tgz

Artifacts: dsh-toolkit releases. The standalone plugin and the five-module toolkit package are mutually exclusive.

Data and access

Boundary	Contract
Storage	`~/.dsh/dsh-rdb.json`, mode `0600`
Credentials	Host-only; excluded from browser and agent responses
HTTP	Loopback and GUI session cookie required
Reads	`db_query` uses server-side read-only classification
Writes	`db_execute` requires connection write permission and `confirm=true`

Detailed configuration and development: Chinese guide.

License

MIT

@onenightcarnival/dsh-rdb

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