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sqlindex-advisor skillA

sqlindex-advisor is agent-read markdown (skill) from vanterx/mssql-performance-skills: Analyze SQL Server execution plans to produce a ranked CREATE INDEX script. Applies 13 checks (D1–D13). Derives index recommendations from operator patterns (Key Lookups, scans, sorts, spools, nested loops, filtered index opportunities, hash match probe-side scans — D1–D10) and the optimizer's explicit MissingIndexGroup suggestions, then validates the generated DDL against engine limits and filtered-index prerequisites (D11–D13). Also accepts sys.dm_db_missing_index_details + sys.dm_db_missing_i.

Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.

What the file says

# SQL Server Index Advisor Skill

## Purpose

Produce a prioritized, ready-to-run `CREATE INDEX` script from three independent sources:

1. **Operator-derived recommendations** — index opportunities inferred directly from plan operator patterns (Key Lookups, expensive scans, Sort operators, Eager Index Spools, high-count Nested Loops, residual predicates, heap scans, backward scans, filtered index candidates, hash match probe-side scans)
2. **Optimizer suggestions** — the explicit `<MissingIndexGroup>` elements SQL Server emits, consolidated and de-duplicated
3. **DMV data** — `sys.dm_db_missing_index_details` + `sys.dm_db_missing_index_group_stats` output, which provides server-wide frequency data (`UserSeeks × AvgQueryCost`) unavailable in plan files

All sources feed into a single unified merge and ranking pipeline. The final output contains one CREATE INDEX statement per table group — not one per source.

## Input

Accept any of:
- One or more `.sqlplan` file paths
- Raw `.sqlplan` XML pasted inline
- A description of plan operators if XML is not available
…

Read the whole file at its exact version.

How to install

Latest version
mdr add vanterx/mssql-performance-skills/sqlindex-advisor@git:20260728.82e1136
Exact content
mdr add vanterx/mssql-performance-skills/sqlindex-advisor@sha256:30a6bcdcd1e472e6

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Versions

versioncommittedcommitsizeaudit
git:20260728.82e1136 latest2026-07-28 82e1136 33,991 BA view · diff
git:20260618.5cdc14a2026-06-18 5cdc14a 27,313 BA view · diff
git:20260618.bc5c50b2026-06-18 bc5c50b 27,566 BA view · diff
git:20260610.2551d582026-06-10 2551d58 27,302 BA view · diff
git:20260607.5d066372026-06-07 5d06637 27,238 BA view

Audit of the latest version

A  17 of 17 checks passed. Deterministic, no model, same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (33991 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

GitHub

vanterx/mssql-performance-skills · 5 stars · license MIT · pushed 2026-09-19 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_hqcif5mulpon7bys
GET https://markdownregistry.com/api/v1/resolve?ref=vanterx/mssql-performance-skills/sqlindex-advisor
GET https://markdownregistry.com/api/v1/blob/30a6bcdcd1e472e6dd407ada53de7717fbc4619f17e57e5e54e56b6352414e81

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