collibra-atlas: Skill for Claude Code

.agents/skills/embedding-strategies/SKILL.md

embedding-strategies is a skill for Claude Code from sagar-shirwalkar/collibra-atlas. It costs 67 tokens per session (616 once invoked), scanned A, original, Apache-2.0.

A guide to choosing embedding models and splitting documents for semantic search and retrieval-augmented generation (RAG), where search results are used to help produce answers.

In plain words
What is it for?
It helps compare models, choose between local and API use, tune document chunks, and improve the embedding pipeline with normalization, batching, caching, or reduced dimensions.
Why use it?
It helps avoid choosing a model or document-splitting method that gives poor results, costs too much, or is too slow.

Skill for Claude Code

Written for Claude Code: disable-model-invocation in frontmatter. Also seen: installed under .agents/ (shared by several agents).

This is sagar-shirwalkar/collibra-atlas's own configuration. It tells Claude Code how to work on collibra-atlas itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything collibra-atlas configures →

Reuse

Borrowing it

Nothing to install: this file belongs to sagar-shirwalkar/collibra-atlas. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/sagar-shirwalkar/collibra-atlas/main/.agents/skills/embedding-strategies/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/sagar-shirwalkar/collibra-atlas

Made for: Claude Code.

Wrote this? Show the measurements

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README.md
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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 embedding-strategies

Your own site · 80×15
<a href="https://agentmods.dev/skills/sagar-shirwalkar/collibra-atlas/embedding-strategies"><img src="https://agentmods.dev/badge/skills/sagar-shirwalkar/collibra-atlas/embedding-strategies.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 67 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 616 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 $0.00067 $0.00616
Opus 5 $0.00034 $0.00308
Sonnet 5 $0.00013 $0.00123
Haiku 4.5 $0.00007 $0.00062

Measured 11d ago against content hash 450aec80d114, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

embedding-strategies 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 11d 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.

.agents/skills/embedding-strategies/SKILL.md · 51 lines

How it starts

The opening of the file, as written. The whole thing — 51 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Guide to selecting, comparing, and optimizing embedding models for vector search and RAG.

Leading words

  • Compare — Evaluate embedding candidates against the project's retrieval criteria (latency, dimension, domain fit). Not every model suits every workload.
  • Chunk — Split documents into embeddable pieces while preserving semantic boundaries. The chunking strategy is as important as the model.
  • Optimize — Tune the pipeline: normalize embeddings, batch requests, cache results, reduce dimensions when possible.

Phases

PHASE 1: Scout

Completion criterion: a shortlist of 2-3 embedding models that match the project's constraints (language domain, latency budget, local vs API, dimension limits).

  1. Identify the project's constraints: language, deployment environment (local/API), latency requirements, and cost budget.
  2. Compare candidate models using the comparison table in references/details.md.
  3. For local deployments, check ONNX/MLX compatibility and model size. For API deployments, check rate limits and pricing.
  4. If the project uses Claude, consider Voyage AI models (Anthropic recommended).

PHASE 2: Chunk

Completion criterion: a chunking strategy documented and implemented — chunk size, overlap, boundary detection, and preprocessing steps.

  1. Choose a chunk size based on your embedding model's token limit (e.g., 512 tokens for bge-base-en-v1.5, 8191 for text-embedding-3-large).
  2. Pick a boundary strategy:
    • Semantic boundaries (headings, paragraphs) — preserves meaning, uneven sizes.
    • Fixed-size with overlap — uniform chunks, may split mid-sentence.
  3. Add metadata to each chunk (source, heading, position) for downstream filtering.
  4. Preprocess text before embedding: normalize whitespace, strip boilerplate.

PHASE 3: Optimize

Completion criterion: embedding pipeline integrated into the project's bundle build, with batch processing and optional caching.

  1. Normalize all embeddings to unit length (required for cosine similarity).
  2. Batch embed requests (e.g., 32-64 texts per batch) for throughput.
  3. Cache embeddings for static content to avoid recomputing on rebuild.
  4. If dimension reduction is needed (e.g., 3072 → 768 via PCA), evaluate the recall tradeoff before committing.

Read the full file on GitHub · 51 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 11d ago First seen · 51 lines · 67 tokens per session scan A 450aec80d114

Subscribe to this mod's changes

embedding-strategies is a skill published in the GitHub repository sagar-shirwalkar/collibra-atlas (0 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 67 tokens to every session and 616 once invoked, about $0.0003 per session on Opus 5. 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 2026-08-31.

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