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Choosing an approximate nearest neighbour index v1.0.0

Use this resource to choose the approximate vector index that fits your volume

New

  • 324 downloads
  • 196 likes
  • 105 saves

Free

Install with the CLI

In a terminal, from the folder you want:

npx --yes palatekit@latest install ann-index-selection-hnsw

With no option, the skill goes to ~/.agents/skills/; add --agent claude-code (or codex, cursor…) to target an agent.

First time: connect the CLI with

npx --yes palatekit@latest login

The agent compares approximate nearest-neighbour algorithms (HNSW, IVF, IVF+PQ, ScaNN, DiskANN, LSH): the effect of m, ef, nlist and nprobe, recall, latency and memory trade-offs, and volume thresholds for each choice.

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Updated November 2, 2026

Card for the “Choosing an approximate nearest neighbour index” skill

Details

Works in
Install guides
Generates with
Your agent's model
Licence
MIT

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What you get

  • SKILL.md: exhaustive versus approximate search and volume thresholds
  • SKILL.md: HNSW, IVF, IVF+PQ, ScaNN, DiskANN and LSH with their parameters

Good fit for

  • Your index passes a million vectors and search slows down
  • You must trade recall against memory

Not for

    Tags

    • ann
    • hnsw
    • vectors
    • indexing

    About

    You say

    “Which index should I use for 20 million vectors if latency must stay under 50 ms?”

    Card for the “Choosing an approximate nearest neighbour index” skill

    Skill published by claude-dev-suite under the MIT license, delivered in its original version.

    Show more

    How to use it

    1. Install the skill in your agent's skills folder
    2. Ask your agent to choose the approximate vector index that fits your volume
    3. Review and adjust the result

    Content preview

    Files

    • LICENSE1.1 KB
    • NOTICE-PALATEKIT.md0.5 KB
    • SKILL.md8 KB

    Origin and licence

    Listed unmodified

    Author
    claude-dev-suite
    Source
    github.com/claude-dev-suite/claude-dev-suite/tree/e10ab644ba43abe2abc923399226df4af7337214/skills/vector-stores/ann-algorithms
    Licence
    MIT

    Notice

    « ann-algorithms » (claude-dev-suite, MIT) livré dans sa version d'origine : fiche en français et en anglais par PalateKit.

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