sw-postgres-mcp AGENTS.md

Project instructions for a safe-write PostgreSQL database connection and the agents that use it. PostgreSQL is a database system; safe-write means changes are limited to reduce the risk of irreversible mistakes.

In plain words
What is it for?
Use it when working with this repository's PostgreSQL MCP server, GitHub Issues, triage labels, or project domain documentation.
Why use it?
It tells agents where to find the project's database, issue-tracker, triage, and domain-specific rules before making changes.

Instructions file for CodexOpenCode

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 instructions/jpka/sw-postgres-mcp/agents-md
Clone the repo
git clone --depth 1 https://github.com/jpka/sw-postgres-mcp

Made for: Codex, OpenCode.

Per session 176 This file is loaded in full into every session.
When invoked 176 The same file — it is already loaded in full.
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 $0.00176 $0.00176
Opus 5 $0.00088 $0.00088
Sonnet 5 $0.00035 $0.00035
Haiku 4.5 $0.00018 $0.00018

Measured 2d ago against content hash 10c541b80f14, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

sw-postgres-mcp 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 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.md · 20 lines

What it actually says

sw-postgres-mcp

A safe-write Postgres MCP server: an agent can read and modify a database without being able to cause an unrecoverable accident. The differentiator is the safety layer, not the tool coverage.

See mcp-postgres-build-plan.md for the full build plan.

Agent skills

Issue tracker

Issues live in this repo's GitHub Issues, driven by the gh CLI. See docs/agents/issue-tracker.md.

Triage labels

The five canonical triage roles, each label string equal to its name. See docs/agents/triage-labels.md.

Domain docs

Single-context — one CONTEXT.md and docs/adr/ at the repo root. See docs/agents/domain.md.

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 · 20 lines · 176 tokens per session scan A 10c541b80f14

Subscribe to this mod's changes

sw-postgres-mcp AGENTS.md is an instructions file published in the GitHub repository jpka/sw-postgres-mcp (0 stars, last pushed 17d ago), licensed MIT. It adds 176 tokens to every session, about $0.0009 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 2026-08-31.