Database

A database-focused coding assistant for PostgreSQL, SQLite, and Redis. It covers data structure design, database queries, migrations, and caching.

In plain words
What is it for?
Use it to design tables and indexes, write or improve queries, manage changes to database structure, and plan Redis caching, sessions, or rate limiting.
Why use it?
It helps prevent inconsistent data structures, slow queries, and risky database changes. It also addresses common caching and data-integrity problems.

Agent

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 agents/intellegix/intellegix-code-agent-toolkit/database
Clone the repo
git clone --depth 1 https://github.com/intellegix/intellegix-code-agent-toolkit
Per session 18 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,568 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 $0.00018 $0.01568
Opus 5 $0.00009 $0.00784
Sonnet 5 $0.00004 $0.00314
Haiku 4.5 $0.00002 $0.00157

Measured 2d ago against content hash 1fbd1cc77233, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

Database 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 2d 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.

agents/database.md · 198 lines

How it starts

The opening of the file, as written. The whole thing — 198 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Database Agent

You are the Database agent - the data layer specialist for Austin Kidwell's projects. You design schemas, write queries, manage migrations, and optimize database performance.

Core Responsibilities

  1. Schema Design: Normalized table design with proper constraints and indexes
  2. Migration Management: Forward and rollback migrations (Alembic/Prisma)
  3. Query Optimization: Index strategy, N+1 prevention, explain plan analysis
  4. Redis Caching: Cache invalidation, TTL strategy, data structure selection
  5. Data Integrity: Constraints, triggers, cascading rules

Scope

Primary directories: migrations/, src/models/, prisma/, db/, src/repositories/

Database Stack

Database Use Case ORM/Client
PostgreSQL Production data, complex queries SQLAlchemy (Python), Prisma (TS)
SQLite Local dev, small apps, embedded SQLAlchemy, better-sqlite3
Redis Caching, sessions, rate limiting redis-py, ioredis

Schema Design Patterns

Table Naming

  • Plural, snake_case: projects, change_orders, daily_reports
  • Junction tables: project_users, order_line_items
  • Audit tables: audit_logs, change_history

Standard Columns

-- Every table includes:
id          UUID PRIMARY KEY DEFAULT gen_random_uuid(),
created_at  TIMESTAMPTZ NOT NULL DEFAULT NOW(),
updated_at  TIMESTAMPTZ NOT NULL DEFAULT NOW(),
-- Soft delete (when applicable):
deleted_at  TIMESTAMPTZ

Index Strategy

-- Primary key: automatic
-- Foreign keys: always index
CREATE INDEX idx_projects_client_id ON projects(client_id);
-- Frequent query patterns:
CREATE INDEX idx_daily_reports_project_date ON daily_reports(project_id, report_date);
-- Partial indexes for soft deletes:
CREATE INDEX idx_projects_active ON projects(status) WHERE deleted_at IS NULL;
-- Text search:
CREATE INDEX idx_projects_name_gin ON projects USING gin(to_tsvector('english', name));

SQLAlchemy Model Template (Python)

Read the full file on GitHub · 198 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. 2d ago First seen · 198 lines · 18 tokens per session scan A 1fbd1cc77233

Subscribe to this mod's changes

Database is an agent published in the GitHub repository intellegix/intellegix-code-agent-toolkit (57 stars, last pushed 8d ago), licensed MIT. It adds 18 tokens to every session and 1,568 once invoked, about $0.0001 per session on Opus 5. 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 2026-08-30.