postgres-performance

postgres-performance is a skill for Claude Code, Codex from Dankosik/go-service-template-rest. It costs 25 tokens per session (190 once invoked), scanned A, original, MIT.

A reference for finding and improving PostgreSQL speed and capacity, including query time, database workload, and resource use.

In plain words
What is it for?
Use it to investigate queries, execution plans, indexes, locks, disk activity, connections, write-ahead logging, vacuuming, replication, pooling, settings, and capacity.
Why use it?
It helps connect repeatable measurements to the resource causing the slowdown and test the likely cause against alternatives before changing the system.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to investigate queries, execution plans, indexes, locks, disk activity, connections, write-ahead logging, vacuuming, replication, pooling, settings, and capacity.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/dankosik/go-service-template-rest/postgres-performance
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.

Any agent
npx skills add Dankosik/go-service-template-rest --skill postgres-performance
Clone the repo
git clone --depth 1 https://github.com/Dankosik/go-service-template-rest

Made for: Claude Code, Codex.

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 postgres-performance

README.md
[![agentmods](https://agentmods.dev/badge/skills/dankosik/go-service-template-rest/postgres-performance/github.svg)](https://agentmods.dev/skills/dankosik/go-service-template-rest/postgres-performance)
Your own site
<a href="https://agentmods.dev/skills/dankosik/go-service-template-rest/postgres-performance"><img src="https://agentmods.dev/badge/skills/dankosik/go-service-template-rest/postgres-performance/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for postgres-performance

Your own site · 80×15
<a href="https://agentmods.dev/skills/dankosik/go-service-template-rest/postgres-performance"><img src="https://agentmods.dev/badge/skills/dankosik/go-service-template-rest/postgres-performance.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 25 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 190 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 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 5.1 $0.00025 $0.00190
Opus 5.5 $0.00010 $0.00076
Sonnet 5.5 $0.00005 $0.00038
Haiku 4.5 $0.00003 $0.00019

Measured 1mo ago against content hash 78185089ec9b, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

postgres-performance 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 1mo 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.

docs/universal-disciplines/postgres-performance/SKILL.md · 22 lines

What it actually says

PostgreSQL Performance

Use only after the active phase identifies a PostgreSQL performance or capacity decision. Inherit its authority, artifact, review, proof, output, and completion contract; do not select a work mode or live database action here.

Core invariant: connect a repeatable baseline to the limiting PostgreSQL resource and workload source, falsify the leading cause against its strongest competitor, then choose the smallest intervention with a comparable delta.

Load one branch:

  • signal selection, attribution, plans, locks, I/O, WAL, vacuum, or replication -> diagnostics.md;
  • query, index, statistics, pooling, maintenance, setting, or architecture change -> interventions.md.
Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 1mo ago First seen · 22 lines · 25 tokens per session scan A 78185089ec9b

Subscribe to this mod's changes

postgres-performance is a skill published in the GitHub repository Dankosik/go-service-template-rest (7 stars, last pushed yesterday), licensed MIT. It adds 25 tokens to every session and 190 once invoked, about $0.0001 per session on Opus 5.5. 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.

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