optimizing-databricks-sql SKILL.md skillA
optimizing-databricks-sql from altimateai/data-engineering-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add altimateai/data-engineering-skills/optimizing-databricks-sql@git:20260925.705c68bPins git:20260925.705c68b in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- altimateai/data-engineering-skills
- Path
skills/databricks/optimizing-databricks-sql/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260925.705c68b, committed Sep 25, 2026
- Size
- 26,846 bytes
- Repository stars
- 129
- License
- MIT
Analyze DBSQL queries, including SQL embedded in notebooks (`spark.sql(...)`, `%sql` cells), for anti-patterns, lint issues, and performance problems, using Databricks-specific dialect and platform knowledge (Delta, Photon, Unity Catalog) layered on top of altimate-code's generic SQL engine. Use when a user asks to optimize, review, or lint DBSQL queries on Databricks, whether standalone or embedded in a notebook.
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
# Databricks Optimize (DBSQL) A Databricks/Delta-platform **overlay**, not a standalone optimizer. The generic rewrite/analyze/verify pipeline (Steps 1, 5, 6) is the same pipeline altimate-code's native `query-optimize` skill runs — same tool calls, same composition. This skill's only job is the part `query-optimize` structurally can't do: detecting Databricks/Delta platform-specific issues (Z-ordering, table statistics, Photon UDF blocking) that need table metadata and Databricks docs knowledge, not just query text, and folding those findings in alongside the generic ones. If `query-optimize` is installed in the current environment, prefer invoking it for Steps 1/5/6 and layer Steps 2–4's Databricks-specific findings on top of its output, the same way `sql-review` defers to sibling skills instead of duplicating them. If it isn't available (e.g. this skill is running standalone, outside altimate-code), fall back to calling the same tools directly as described below — the tool calls are identical either way, so behavior doesn't change based on which path ran. No rewrite is reported as "optimized" until it clears the validation gate …
Read the whole file at its exact version.
How to install
mdr add altimateai/data-engineering-skills/optimizing-databricks-sql@sha256:ddf5474c0a2501aeThe line at the top of this page pins the label git:20260925.705c68b, 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_4ivgvuvcfbwjsa5y)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Sep 25, 2026.
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 (26846 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
altimateai/data-engineering-skills · 129 stars · license MIT · pushed 2026-10-23 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_4ivgvuvcfbwjsa5y GET https://markdownregistry.com/api/v1/resolve?ref=altimateai/data-engineering-skills/optimizing-databricks-sql GET https://markdownregistry.com/api/v1/blob/ddf5474c0a2501aefe704e2e9ae579d477c7442e66c7e8ff7a8ecff63bf765fa
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.