dbtalk

dbtalk is an LLM-ready database CLI for SQL operations, JSONL data transfer, permissions, and logical backups across SQLite, MySQL, and PostgreSQL.

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Features

• Run SQL with query and exec, including bound parameters and timeouts
• Transfer JSONL data between SQLite, MySQL, and PostgreSQL
• Manage MySQL schemas and users, and PostgreSQL schemas and roles
• Grant and revoke permission profiles; inspect native permissions with permissions list/show
• Create and restore MySQL SQL dumps and PostgreSQL custom archives
• Provide database-focused skills for Codex, Claude, and Grok agents

Installation

Requires Python 3.12+. Install the published CLI with:

uv tool install pomelo-dbtalk
dbtalk --help

From a checkout, use uv:

uv sync --all-groups
uv run dbtalk --help

Quick start

Keep the connection string in the current directory's .env, then refer to it only by name:

DBTALK_DSN_APP=sqlite:///./data/app.db

uv run dbtalk query \
  --dsn-env DBTALK_DSN_APP \
  --sql 'SELECT 1 AS ok'

uv run dbtalk exec \
  --dsn-env DBTALK_DSN_APP \
  --sql 'CREATE TABLE IF NOT EXISTS notes (id INTEGER PRIMARY KEY, body TEXT NOT NULL)'

query is read-only; exec runs a write-capable session. Add -v on a leaf command to see sanitized exception details.

Agents write the DSN to .env before the first database command. --dsn-env DBTALK_DSN_* reads the process environment first and only falls back to the current .env when that variable is absent.

Commands

Run uv run dbtalk --help or a subcommand's --help for full options.

DSNs and configuration

Supported DSN examples:

sqlite:///./data/app.db
mysql+pymysql://user:password@host:3306/app
postgresql+psycopg://user:password@host:5432/app

Every command accepts exactly one of --dsn DSN or --dsn-env NAME; --dsn remains available for direct integrations. Agent workflows must plan a DBTALK_DSN_* name, write the value to the current .env, and use only --dsn-env. .env.local and other dotenv variants are not loaded. Defaults are in dbtalk.yaml and can be overridden with DBTALK_ process environment variables.

Documentation

• Database operations: SQL, JSONL transfer, and DSN conventions
• MySQL guide: schemas, users, permissions, dump, and restore
• PostgreSQL guide: schemas, roles, permissions, dump, and restore

Agent integration

The repository ships a dbtalk plugin for Codex, Claude, and Grok with three skills:

• dbtalk: SQL and JSONL data transfer
• dbtalk-mysql: MySQL schemas, users, permissions, and dump/restore
• dbtalk-postgres: PostgreSQL schemas, roles, permissions, and dump/restore

Install or synchronize the local plugin with:

make install

See Agent plugin and skills for installation details, parameter constraints, and safety boundaries.

Development

make deps
make check
make test
make release

make check runs Ruff and Mypy. make test runs the test suite; integration tests requiring a real database are skipped by default.

License

Licensed under the Apache License, Version 2.0. See LICENSE.

Docker

docker build -t dbtalk .
docker run --rm dbtalk --help