Conciseness

The body is mostly dense, high-value gotchas, but version-number history is scattered inline rather than in a deprecated/old-patterns section (an ~11-line legacy databricks-vectorsearch paragraph plus 0.79/0.80/0.81/0.82 mentions throughout), the 'When to Use' section duplicates the frontmatter triggers, and the Notes section repeats the filter-syntax rule verbatim. More than minor trimming is needed, so it sits at anchor 3 rather than 4.

Actionability

Fully executable, copy-paste-ready code and commands throughout: create_endpoint/create_delta_sync_index variants with real parameters, both filter syntaxes, the scan pagination loop, the target_qps polling loop with int() handling of string int64 fields, and complete CLI invocations. Matches the top anchor.

Workflow Clarity

Multi-step processes carry explicit validation checkpoints and error-recovery feedback: check endpoint state before retrying creation, wait for a running update instead of re-triggering sync, the three separate waits (ONLINE / SCALING_CHANGE_APPLIED / status.ready) with 'Load-test only after all three', and 429 triage, plus an ask-first safety gate for costly/destructive operations. Matches the top anchor.

Progressive Disclosure

The four reference files all exist, are one level deep, and are well signaled via the annotated Reference Files table plus an inline link in the hybrid-search section; however, the long Production and High QPS deep-dive prose and the legacy-version compatibility material are inlined in SKILL.md where they could live in troubleshooting-and-operations.md. Good structure with minor placement gaps — anchor 4, not 5.

Specificity

The description enumerates multiple concrete, comprehensive actions with the named client — 'create Standard or Storage-Optimized endpoints and Delta Sync or Direct Access indexes with AISearchClient', 'query with ANN, hybrid, or full-text search and filters', 'set a target QPS, triage 429s, or load-test an endpoint', 'wire an index into an agent as a retriever tool' — matching the top anchor with no meaningful coverage gaps.

Completeness

It clearly answers both 'what' (first sentence describing endpoints and indexes for RAG and semantic search) and 'when' (explicit 'Use when asked to:' clause with concrete trigger phrases), matching the top anchor.

Trigger Term Quality

Good natural keyword coverage ('RAG', 'semantic search', 'formerly Vector Search', 'filters', '429s', 'load-test', 'retriever tool'), but a few common user phrasings like 'similarity search' and 'embeddings' are missing, keeping it just below the comprehensive anchor.

Distinctiveness Conflict Risk

A named product niche plus an explicit 'NOT for:' boundary listing three sibling skills makes conflict with other skills minimal, matching the clear-niche top anchor.