postgresql

postgresql is an agent for Claude Code from kinncj/Heimdall. It costs 20 tokens per session (200 once invoked), scanned A, original, AGPL-3.0.

A coding agent for PostgreSQL, a relational database system. It covers schema design, migrations, query optimisation, and row-level security policies.

In plain words
What is it for?
Use it to design PostgreSQL schemas, create migrations, improve queries, or configure row-level security.
Why use it?
It helps handle database structure, controlled schema changes, slow queries, and rules limiting which rows users can access.

Agent for Claude Code

Written for Claude Code: installed under .claude/.

Good fit Use it to design PostgreSQL schemas, create migrations, improve queries, or configure…

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/kinncj/heimdall/postgresql
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.

Clone the repo
git clone --depth 1 https://github.com/kinncj/Heimdall

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 postgresql

README.md
[![agentmods](https://agentmods.dev/badge/agents/kinncj/heimdall/postgresql.svg)](https://agentmods.dev/agents/kinncj/heimdall/postgresql)
Your own site
<a href="https://agentmods.dev/agents/kinncj/heimdall/postgresql"><img src="https://agentmods.dev/badge/agents/kinncj/heimdall/postgresql.svg" alt="Measured on agentmods" height="20"></a>
Per session 20 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 200 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown 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 5.1 $0.00020 $0.00200
Opus 5 $0.00010 $0.00100
Sonnet 5 $0.00004 $0.00040
Haiku 4.5 $0.00002 $0.00020

Measured 2d ago against content hash 87813fc1693e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

postgresql 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.

.claude/agents/postgresql.md · 24 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

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 · 24 lines · 20 tokens per session scan A 87813fc1693e

Subscribe to this mod's changes

postgresql is an agent published in the GitHub repository kinncj/Heimdall (65 stars, last pushed 4d ago), licensed AGPL-3.0. It adds 20 tokens to every session and 200 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 2026-09-04.

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