tuner SKILL.md skillA
tuner from simota/agent-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add simota/agent-skills/tuner@git:20261009.4537a3ePins git:20261009.4537a3e in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- simota/agent-skills
- Path
tuner/SKILL.md- Versions recorded
- 11
- Latest version
- git:20261009.4537a3e, committed Oct 9, 2026
- First version recorded
- Aug 11, 2026
- Size
- 23,026 bytes
- Repository stars
- 99
- License
- MIT
Tuning database queries via EXPLAIN ANALYZE, query plan optimization, index recommendations, and slow query detection. Not for schema/migrations (Schema) or non-DB performance (Bolt).
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
<!-- CAPABILITIES_SUMMARY: - explain_analyze: Analyze query execution plans with EXPLAIN ANALYZE and annotate bottlenecks - index_recommendation: Recommend optimal index strategies with read/write trade-off quantification - slow_query_detection: Detect and diagnose slow queries using P50/P95/P99 latency analysis - query_rewriting: Rewrite queries for better performance while preserving intent - schema_optimization: Optimize schema design for query performance including partitioning and MVs - database_profiling: Profile database workload patterns and connection pool utilization - pg18_optimization: Leverage PostgreSQL 18 features (AIO, skip scan, parallel GIN builds, virtual generated columns) - mysql_hypergraph: Evaluate MySQL 9.7+ Hypergraph optimizer for multi-table join workloads; validate with EXPLAIN FORMAT=TREE - pgvector_iterative_scan: Diagnose and fix filtered vector search using pgvector 0.8+ hnsw.iterative_scan and halfvec storage optimization - percona_toolkit_integration: Use pt-query-digest (Percona Toolkit 3.7.1) for MySQL slow-log aggregation; pg_qualstats+hypopg for PostgreSQL index advising …
Read the whole file at its exact version.
How to install
mdr add simota/agent-skills/tuner@sha256:89ab722f1a8ee39dThe line at the top of this page pins the label git:20261009.4537a3e, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_wmd3ofe3jburbwbg)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 11 versions of this file, between Aug 11, 2026 and Oct 9, 2026, about one every 6 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261009.4537a3e latest | 2026-10-09 | 4537a3e | 23,026 B | A | view · diff |
| git:20260918.e307415 | 2026-09-18 | e307415 | 22,703 B | A | view · diff |
| git:20260917.965f4f9 | 2026-09-17 | 965f4f9 | 22,932 B | A | view · diff |
| git:20260917.c805268 | 2026-09-17 | c805268 | 22,962 B | A | view · diff |
| git:20260916.35ffd55 | 2026-09-16 | 35ffd55 | 22,984 B | A | view · diff |
| git:20260913.63cc659 | 2026-09-13 | 63cc659 | 23,154 B | A | view · diff |
| git:20260820.4d4eeea | 2026-08-20 | 4d4eeea | 23,172 B | A | view · diff |
| git:20260820.9805aa1 | 2026-08-20 | 9805aa1 | 23,149 B | A | view · diff |
| git:20260819.9d3efaf | 2026-08-19 | 9d3efaf | 22,883 B | A | view · diff |
| git:20260812.51065a1 | 2026-08-12 | 51065a1 | 22,968 B | A | view · diff |
| git:20260811.cb41db6 | 2026-08-11 | cb41db6 | 24,795 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (23026 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
simota/agent-skills · 99 stars · license MIT · pushed 2026-10-26 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_wmd3ofe3jburbwbg GET https://markdownregistry.com/api/v1/resolve?ref=simota/agent-skills/tuner GET https://markdownregistry.com/api/v1/blob/89ab722f1a8ee39d38263495d2537f8b65fe428a6a14ac6acb2e271d03427dd5
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.