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.
npx agentmods add instructions/neondatabase/postgres-skills/agents-mdgit clone --depth 1 https://github.com/neondatabase/postgres-skillsWrote 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.
[](https://agentmods.dev/instructions/neondatabase/postgres-skills/agents-md)<a href="https://agentmods.dev/instructions/neondatabase/postgres-skills/agents-md"><img src="https://agentmods.dev/badge/instructions/neondatabase/postgres-skills/agents-md.svg" alt="Measured on agentmods" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.01105 | $0.01105 |
| Opus 5 | $0.00553 | $0.00553 |
| Sonnet 5 | $0.00221 | $0.00221 |
| Haiku 4.5 | $0.00111 | $0.00111 |
Grade A, and why
postgres-skills AGENTS.md 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 4d 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.
How it starts
The opening of the file, as written. The whole thing — 151 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md
This file provides guidance to AI coding agents (Claude Code, Cursor, Copilot, etc.) when working with code in this repository.
For the complete Agent Skills specification, see: https://agentskills.io/specification
Repository Overview
A collection of skills for coding agents for working with Postgres. Skills are packaged instructions and documentation that extend the agent's capabilities.
Creating a New Skill
Directory Structure
skills/
{skill-name}/ # kebab-case directory name
SKILL.md # Required: skill definition
references/ # Optional: additional documentation
REFERENCE.md # Detailed technical reference
{topic}.md # Domain-specific files
scripts/ # Optional: executable scripts
{script-name}.sh # Bash scripts (preferred)
assets/ # Optional: static resources
templates/ # Document/config templates
images/ # Diagrams, examples
Naming Conventions
- Skill directory: kebab-case, must match
namein frontmatter (e.g.,postgres-best-practices) - Name field: 1-64 chars, lowercase alphanumeric and hyphens only, no consecutive hyphens (
--), must not start/end with- - SKILL.md: Always uppercase, always this exact filename
- Scripts:
kebab-case.sh(e.g.,deploy.sh,fetch-logs.sh)
SKILL.md Format
The SKILL.md file must contain YAML frontmatter followed by Markdown content.
Frontmatter (required fields)
---
name: skill-name
description: A description of what this skill does and when to use it. Include trigger phrases. Max 1024 characters.
---
Frontmatter (optional fields)
---
name: skill-name
description: A description of what this skill does and when to use it.
license: Apache-2.0
compatibility: Requires git, docker, and network access
metadata:
author: example-org
version: "1.0"
allowed-tools: Bash(git:*) Read
---
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.
- 4d ago First seen · 151 lines · 1,105 tokens per session scan A 663e06dedfe1
postgres-skills AGENTS.md is an instructions file published in the GitHub repository neondatabase/postgres-skills (29 stars, last pushed 9d ago), licensed Apache-2.0. It adds 1,105 tokens to every session, about $0.0055 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.
Other instructions, from other repositories
supabase copilot-instructions.md
Copilot instructions for supabase/supabase, covering copilot code review instructions, review policy — read this first, confidence threshold, what not to comment on and what to comment on (priority order).
prest copilot-instructions.md
Copilot instructions for prest/prest, covering copilot instructions for prest go backend, project scope, core engineering principles, solid principles for go and s — single responsibility.
MCP-PostgreSQL-Ops copilot-instructions.md
Instructions for call518/MCP-PostgreSQL-Ops, covering architecture overview, core components, key patterns, in functions.py and development workflows.
pg_exporter AGENTS.md
Instructions for nbari/pg_exporter, covering agents.md, project shape, first steps, devpod workflow (preferred) and local commands.
counterpoise-ledger CLAUDE.md
Instructions for jeffjjohnston/counterpoise-ledger, covering claude.md, project overview, development commands, essential commands and testing.
bun-pg-mcp AGENTS.md
AGENTS.md instructions for igoraguiar/bun-pg-mcp, covering agents.md, project context, tech stack, directory map and commands.