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@demerzels-lab/db-query

A

Query project databases with automatic SSH tunnel management. Use when you need to execute SQL queries against configured databases, especially those accessible only via SSH tunnels. Automatically manages SSH connection lifecycle (establishes tunnel before query, closes after). Supports multiple databases distinguished by description/name from config file.

skillclaude

Install

agr install @demerzels-lab/db-query --target claude

Writes 2 files into .claude/skills/, pinned to git-fb74ef03.

  • .claude/skills/db-query/SKILL.md
  • .claude/skills/db-query/_meta.json

Document


name: db-query description: Query project databases with automatic SSH tunnel management. Use when you need to execute SQL queries against configured databases, especially those accessible only via SSH tunnels. Automatically manages SSH connection lifecycle (establishes tunnel before query, closes after). Supports multiple databases distinguished by description/name from config file.

Database Query

Overview

Query databases through a centralized configuration file with automatic SSH tunnel management. Handles connection details, SSH tunnel setup/teardown, and query execution.

Configuration

Setup

  1. Create config file at ~/.config/clawdbot/db-config.json:

    mkdir -p ~/.config/clawdbot
    # Copy example config and edit
    cp /usr/lib/node_modules/clawdbot/skills/db-query/scripts/config.example.json ~/.config/clawdbot/db-config.json
    
  2. Add database entries with these fields:

    • name: Description used to find the database (required)
    • host: Database host (required)
    • port: Database port (default: 3306)
    • database: Database name (required)
    • user: Database user (required)
    • password: Database password (required)
    • ssh_tunnel: Optional SSH tunnel configuration
  3. SSH tunnel configuration (if needed):

    • enabled: true/false
    • ssh_host: Remote SSH host
    • ssh_user: SSH username
    • ssh_port: SSH port (default: 22)
    • local_port: Local port to forward (e.g., 3307)
    • remote_host: Remote database host behind SSH (default: localhost)
    • remote_port: Remote database port (default: 3306)

Example Config

{
  "databases": [
    {
      "name": "生产用户库",
      "host": "localhost",
      "port": 3306,
      "database": "user_db",
      "user": "db_user",
      "password": "secret",
      "ssh_tunnel": {
        "enabled": true,
        "ssh_host": "prod.example.com",
        "ssh_user": "deploy",
        "local_port": 3307
      }
    }
  ]
}

Usage

List Databases

python3 /usr/lib/node_modules/clawdbot/skills/db-query/scripts/db_query.py --list

Query a Database

python3 /usr/lib/node_modules/clawdbot/skills/db-query/scripts/db_query.py \
  --database "生产用户库" \
  --query "SELECT * FROM users LIMIT 10"

The script will:

  1. Find database by matching description in config
  2. Start SSH tunnel (if configured)
  3. Execute query
  4. Automatically close SSH tunnel (important for cleanup)

With Custom Config Path

python3 /usr/lib/node_modules/clawdbot/skills/db-query/scripts/db_query.py \
  --config /path/to/custom-config.json \
  --database "test" \
  --query "SHOW TABLES"

Requirements

  • MySQL client: apt install mysql-client or equivalent
  • SSH client: usually pre-installed on Linux/Mac
  • Python 3.6+

Notes

  • SSH tunnels are automatically closed after query execution
  • Use --list to see all configured databases and their descriptions
  • Database search is case-insensitive partial match on name field
  • Local ports for SSH tunnels should be unique per database

Trustgrade A

  • passBody integrity

    Whether the stored document is plausibly the kind of file the artifact declares, rather than something fetched by mistake.

  • passType matchnot applicable to this artifact type

    Whether the artifact is really the kind of thing its metadata claims it is.

  • passFreshness

    How long since the source repository was last pushed to.

  • passPrompt injection

    Scans the artifact's own text for instructions aimed at your agent rather than at you.

  • passLicense

    Whether the source repository declares an SPDX license permissive enough to redistribute.

How the grade is calculated

Each check contributes 0 points when it passes, 1 when it warns, and 2 when it fails. The total maps to a letter:

  • Aevery check passed
  • Bone warning
  • Ctwo warnings
  • Dprompt injection or body integrity failed, or three warnings
  • Fone of those failed, and something else is wrong

These are automated hygiene checks, not a security audit, and not a dependency or vulnerability scan. A grade of A means nothing was flagged — not that the artifact is safe.

Versions

  • git-fb74ef0342892026-07-31