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 skills add berkcangumusisik/claude-code-practices --skill sql-explaingit clone --depth 1 https://github.com/berkcangumusisik/claude-code-practicesWrote 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/skills/berkcangumusisik/claude-code-practices/sql-explain)<a href="https://agentmods.dev/skills/berkcangumusisik/claude-code-practices/sql-explain"><img src="https://agentmods.dev/badge/skills/berkcangumusisik/claude-code-practices/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.
<a href="https://agentmods.dev/skills/berkcangumusisik/claude-code-practices/sql-explain"><img src="https://agentmods.dev/badge/skills/berkcangumusisik/claude-code-practices/sql-explain.svg" alt="Reviewed on agentmods" width="80" 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 5.1 | $0.00016 | $0.00284 |
| Opus 5 | $0.00008 | $0.00142 |
| Sonnet 5 | $0.00003 | $0.00057 |
| Haiku 4.5 | $0.00002 | $0.00028 |
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.
What it actually says
SQL Query Explanation
Query: $ARGUMENTS
-
If a file path was given, read the file. If a query was pasted, use it directly.
-
Plain English explanation:
- What tables are involved?
- What data is being filtered/joined?
- What is the final result set?
- Walk through execution order (FROM → WHERE → GROUP BY → HAVING → SELECT → ORDER → LIMIT)
-
Potential issues:
- Missing indexes on WHERE/JOIN columns
- Cartesian products (missing JOIN condition)
SELECT *when specific columns would do- Subqueries that could be CTEs or JOINs
- Functions on indexed columns preventing index use (
WHERE LOWER(email) = ...)
-
Optimization suggestions (with rewritten query):
- Indexes to add (with
CREATE INDEXstatement) - Query rewrite if applicable
- For Postgres/MySQL: suggest running
EXPLAIN ANALYZE
- Indexes to add (with
-
Estimate complexity: O(n), O(n log n), O(n²) roughly.
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.
- 6d ago First seen · 35 lines · 16 tokens per session scan A 342c76d0c7ab
sql-explain is a skill published in the GitHub repository berkcangumusisik/claude-code-practices (10 stars, last pushed 4mo ago), licensed MIT. It adds 16 tokens to every session and 284 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 2026-09-03.
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