db

db is a command for Claude Code from terrene-foundation/metis. It costs 0 tokens per session (565 once invoked), scanned A, original, Apache-2.0.

A command for Kailash DataFlow, a database toolkit that can create database operations from model definitions. It covers SQL databases such as PostgreSQL and SQLite, as well as MongoDB.

In plain words
What is it for?
Use it to define models and handle create, read, update and delete operations, bulk operations, transactions, multiple tenants and multiple database instances.
Why use it?
It gives an agent a quick reference for common database patterns instead of requiring it to rediscover the toolkit's syntax. It first checks whether the project appears to use DataFlow.

Command for Claude Code

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add commands/terrene-foundation/metis/db
Clone the repo
git clone --depth 1 https://github.com/terrene-foundation/metis

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for db

README.md
[![agentmods](https://agentmods.dev/badge/commands/terrene-foundation/metis/db.svg)](https://agentmods.dev/commands/terrene-foundation/metis/db)
Your own site
<a href="https://agentmods.dev/commands/terrene-foundation/metis/db"><img src="https://agentmods.dev/badge/commands/terrene-foundation/metis/db.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 565 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00000 $0.00565
Opus 5 $0.00000 $0.00282
Sonnet 5 $0.00000 $0.00113
Haiku 4.5 $0.00000 $0.00056

Measured 3d ago against content hash d1c94848aef2, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

db scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 3d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.claude/commands/db.md · 77 lines

How it starts

The opening of the file, as written. The whole thing — 77 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/db - DataFlow Quick Reference

Purpose

Load the DataFlow skill for zero-config database operations with automatic model-to-node generation.

Step 0: Verify Project Uses Kailash DataFlow

Before loading DataFlow patterns, check that this project uses Kailash DataFlow:

  • Look for kailash-dataflow or dataflow in requirements.txt, pyproject.toml
  • Look for from dataflow / import dataflow in source files

If not found, inform the user: "This project doesn't appear to use Kailash DataFlow. These patterns may not apply. Continue anyway?"

Quick Reference

Command Action
/db Load DataFlow patterns and database basics
/db model Show @db.model decorator patterns
/db crud Show CRUD operation patterns
/db bulk Show bulk operation patterns

What You Get

  • @db.model decorator patterns
  • Auto-generated nodes (11 per SQL model, 8 for MongoDB)
  • CRUD, bulk operations, transactions
  • Multi-tenancy and multi-instance patterns
  • PostgreSQL, SQLite, MongoDB support

Quick Pattern

from dataflow import DataFlow

db = DataFlow("sqlite:///app.db")

@db.model
class User:
    id: int = field(primary_key=True)
    name: str
    created_at: datetime = field(auto_now_add=True)  # Auto-managed

# Creates 11 nodes automatically: CreateUser, ReadUser, UpdateUser, etc.

Critical Gotchas

Rule Why
Primary key MUST be named id DataFlow convention requirement
NEVER manually set created_at/updated_at Auto-managed fields
CreateNode uses FLAT params Not nested under data
UpdateNode uses filter + fields Different from CreateNode pattern
DataFlow is NOT an ORM It generates workflow nodes

Read the full file on GitHub · 77 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 3d ago First seen · 77 lines · 0 tokens per session scan A d1c94848aef2

Subscribe to this mod's changes

db is a command published in the GitHub repository terrene-foundation/metis (2 stars, last pushed 4mo ago), licensed Apache-2.0. It costs nothing until one of its globs matches a file; then it loads 565 tokens. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.