vector-database-engineer

vector-database-engineer is a skill for Claude Code from frank-luongt/faos-skills-marketplace. It costs 0 tokens per session (482 once invoked), scanned A, original, Apache-2.0.

A technical skill for storing and searching text or other data by meaning in vector databases such as Pinecone, Weaviate, Qdrant, Milvus, and pgvector.

In plain words
What is it for?
Use it to choose a vector database, create and improve embeddings, configure indexes, combine keyword and meaning-based search, and design document chunking for retrieval systems.
Why use it?
It helps build semantic search systems that can find related information even when the search words do not exactly match the stored text.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the faos-ai-engineer plugin — 14 skills, 8 commands shipped together

Good fit Use it to choose a vector database, create and improve embeddings, configure indexes, combine keyword and meaning-based search, and design document chunking for retrieval systems.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/frank-luongt/faos-skills-marketplace/vector-database-engineer
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add frank-luongt/faos-skills-marketplace --skill vector-database-engineer
Clone the repo
git clone --depth 1 https://github.com/frank-luongt/faos-skills-marketplace

Made for: Claude Code.

Or install faos-ai-engineer, the plugin that ships this one along with the rest of its 14 skills, 8 commands.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for vector-database-engineer

README.md
[![agentmods](https://agentmods.dev/badge/skills/frank-luongt/faos-skills-marketplace/vector-database-engineer/github.svg)](https://agentmods.dev/skills/frank-luongt/faos-skills-marketplace/vector-database-engineer)
Your own site
<a href="https://agentmods.dev/skills/frank-luongt/faos-skills-marketplace/vector-database-engineer"><img src="https://agentmods.dev/badge/skills/frank-luongt/faos-skills-marketplace/vector-database-engineer/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for vector-database-engineer

Your own site · 80×15
<a href="https://agentmods.dev/skills/frank-luongt/faos-skills-marketplace/vector-database-engineer"><img src="https://agentmods.dev/badge/skills/frank-luongt/faos-skills-marketplace/vector-database-engineer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 482 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00000 $0.00482
Opus 5 $0.00000 $0.00241
Sonnet 5 $0.00000 $0.00096
Haiku 4.5 $0.00000 $0.00048

Measured 12d ago against content hash 0f6f2c8ab38d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

vector-database-engineer scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 12d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/faos-ai-engineer/skills/vector-database-engineer/SKILL.md · 64 lines

How it starts

The opening of the file, as written. The whole thing — 64 lines — stays where its author put it; the contents beside it link to each section on GitHub.


name: vector-database-engineer description: Expert in vector databases, embedding strategies, and semantic search implementation. Masters Pinecone, Weaviate, Qdrant, Milvus, and pgvector for RAG applications, recommendation systems, and similar tags: [database, vector-db]

Vector Database Engineer

Expert in vector databases, embedding strategies, and semantic search implementation. Masters Pinecone, Weaviate, Qdrant, Milvus, and pgvector for RAG applications, recommendation systems, and similarity search. Use PROACTIVELY for vector search implementation, embedding optimization, or semantic retrieval systems.

Do not use this skill when

  • The task is unrelated to vector database engineer
  • You need a different domain or tool outside this scope

Instructions

  • Clarify goals, constraints, and required inputs.
  • Apply relevant best practices and validate outcomes.
  • Provide actionable steps and verification.

Capabilities

  • Vector database selection and architecture
  • Embedding model selection and optimization
  • Index configuration (HNSW, IVF, PQ)
  • Hybrid search (vector + keyword) implementation
  • Chunking strategies for documents
  • Metadata filtering and pre/post-filtering
  • Performance tuning and scaling

Use this skill when

  • Building RAG (Retrieval Augmented Generation) systems
  • Implementing semantic search over documents
  • Creating recommendation engines
  • Building image/audio similarity search
  • Optimizing vector search latency and recall
  • Scaling vector operations to millions of vectors

Workflow

  1. Analyze data characteristics and query patterns
  2. Select appropriate embedding model
  3. Design chunking and preprocessing pipeline
  4. Choose vector database and index type
  5. Configure metadata schema for filtering
  6. Implement hybrid search if needed
  7. Optimize for latency/recall tradeoffs
  8. Set up monitoring and reindexing strategies

Best Practices

  • Choose embedding dimensions based on use case (384-1536)
  • Implement proper chunking with overlap
  • Use metadata filtering to reduce search space
  • Monitor embedding drift over time
  • Plan for index rebuilding
  • Cache frequent queries
  • Test recall vs latency tradeoffs

Read the full file on GitHub · 64 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 12d ago First seen · 64 lines · 0 tokens per session scan A 0f6f2c8ab38d

Subscribe to this mod's changes

vector-database-engineer is a skill published in the GitHub repository frank-luongt/faos-skills-marketplace (33 stars, last pushed 2mo ago), licensed Apache-2.0. It costs nothing until one of its globs matches a file; then it loads 482 tokens. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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