sql-explain

sql-explain is a skill for Claude Code, Codex from fisker086/AIOps. It costs 32 tokens per session (307 once invoked), scanned A, original, Apache-2.0.

An interpreter for SQL EXPLAIN output, also called a query plan. A query plan shows how a database intends to find and combine rows for a SQL query.

In plain words
What is it for?
Analyze MySQL and PostgreSQL plans, check whether indexes are used, and suggest query or index improvements.
Why use it?
It makes hard-to-read plans easier to understand and highlights missing indexes, inefficient scans, joins, sorting, or temporary work.

Skill for Claude CodeCodex

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

Good fit Analyze MySQL and PostgreSQL plans, check whether indexes are used, and suggest query or index improvements.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/fisker086/aiops/sql_explain
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 fisker086/AIOps --skill sql_explain
Clone the repo
git clone --depth 1 https://github.com/fisker086/AIOps

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 sql-explain

README.md
[![agentmods](https://agentmods.dev/badge/skills/fisker086/aiops/sql_explain/github.svg)](https://agentmods.dev/skills/fisker086/aiops/sql_explain)
Your own site
<a href="https://agentmods.dev/skills/fisker086/aiops/sql_explain"><img src="https://agentmods.dev/badge/skills/fisker086/aiops/sql_explain/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 sql-explain

Your own site · 80×15
<a href="https://agentmods.dev/skills/fisker086/aiops/sql_explain"><img src="https://agentmods.dev/badge/skills/fisker086/aiops/sql_explain.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 32 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 307 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 $0.00032 $0.00307
Opus 5 $0.00016 $0.00153
Sonnet 5 $0.00006 $0.00061
Haiku 4.5 $0.00003 $0.00031

Measured 6d ago against content hash e71547b8af3a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

sql-explain 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 6d 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.

skills/sql_explain/SKILL.md · 25 lines

What it actually says

SQL Explain Skill

Use when the user pastes EXPLAIN output or asks how to read a query plan.

  • MySQL live analysis: Prefer the MySQL Explain skill (builtin_mysql_explain / mysql_explain) when you need to run EXPLAIN / EXPLAIN ANALYZE against a DSN.
  • Any engine (text): Use builtin_sql_explain to parse pasted plans (MySQL traditional/JSON/TREE, PostgreSQL EXPLAIN, etc.) and explain:
    • Access type (seq scan vs index, join order hints)
    • Whether indexes are used as intended
    • “Using filesort”, “Using temporary”, buffer usage (when present)
    • Practical next steps (indexes to add/change, query rewrite)

Tool fields:

  • plan: Pasted EXPLAIN / EXPLAIN ANALYZE / query plan text.
  • engine: Optional engine hint: mysql, postgres, or generic.
  • query: Optional original SQL query for additional hints.

If the plan is truncated, ask only for the missing fragment.

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. 6d ago First seen · 25 lines · 0 tokens per session scan A e71547b8af3a

Subscribe to this mod's changes

sql-explain is a skill published in the GitHub repository fisker086/AIOps (22 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 32 tokens to every session and 307 once invoked, about $0.0002 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 2026-09-03.

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