Vector Desk - vector-desk.skillsafe.ai This app's agent prompt is a derivative work of one agent skill. It paraphrases and adapts its guidance; it does not reproduce the skill or its reference files verbatim. 1. vector-index-tuning Source: github.com/wshobson/agents Path: plugins/llm-application-dev/skills/vector-index-tuning/SKILL.md (and references/details.md) Author: Seth Hobson (wshobson) Licence: MIT License Modifications: the skill's index-type-by-scale table (flat, HNSW, HNSW with quantization, IVF with PQ or DiskANN), its HNSW parameters (M, efConstruction, efSearch), its quantization sizes (FP32, FP16, INT8, PQ, binary), its memory estimate (vectors plus about 2 x M graph links per node), its best practices (benchmark with real queries, monitor recall, start with defaults, use quantization, do not over-optimize early, do not ignore build time, plan reindexing) and its Qdrant and benchmarking templates were restated as deterministic browser checks (vectorkit.js) and as the audit and fix lanes of this app's prompt, made concrete for pgvector (opclass and operator pairs, ef_search against the LIMIT, index dimension limits, iterative scans, lists and probes guidance), Qdrant (rescoring, always_ram beside on-disk originals, exact search), FAISS (PQ divisibility, training points per list, nprobe, refinement, cosine through normalized inner product) and hnswlib. The sweep reading (the configured row, the cheapest row inside every budget, recall that falls as ef rises, recall at another k), the operating-point contract, the exact before/after edit contract, the re-check of every edit and returned file, the name preservation check and the rule that the workload and the sweep are never edited are additions of this app. The browser-side checks (vectorkit.js), the reconciliation (recon.js) and the rest of the page are original to this app; the edit-apply routine and the page shell are shared with other SkillSafe desks. pgvector, Qdrant, FAISS and hnswlib are projects of their own authors; this app is not affiliated with or endorsed by any of them.