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RAG Chunk Optimization Calculator

RAG Chunk Optimization Calculator MCP Connector for Claude

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Deterministic tool for optimizing RAG chunk size and overlap parameters.

3 tools Official Updated Oct 1, 2026 Official Vinkius Partner
More Details Connect to Claude

This MCP server provides precise mathematical tools to optimize Retrieval-Augmented Generation (RAG) configurations. It helps developers balance context window utilization against retrieval overhead by calculating exact chunk counts, overlap percentages, and optimal sizing. Use calculate_chunk_metrics to evaluate specific parameters, compare_chunk_strategies to test multiple configurations, or get_optimization_bounds to find the mathematical limits of your LLM's context window.

ragllmoptimizationcontext-windowtokenization

3 tools expose this connector's capabilities to your AI agent.

compare_chunk_strategies

Evaluates how different chunking configurations would perform

calculate_chunk_metrics

Calculates the structural impact of current chunking parameters

get_optimization_bounds

Determines the mathematical limits of the context window

See how to talk to your AI agent using RAG Chunk Optimization Calculator.

Calculate the metrics for a 10,000 token document with a chunk size of 500, overlap of 50, a 4,000 token context window, and Top-K of 5.

The chunk count is 22, the overlap overhead is 11.0%, and the context utilization is 62.5%. The optimal chunk size is 560 and the recommended overlap is 50.

What are the maximum chunk size limits for a 128,000 token context window with Top-K set to 10?

The maximum chunk size is 12,800 tokens, and the safety margin limit is 8,960 tokens.

Compare two strategies for a 5,000 token document: Strategy A (chunk 400, overlap 40) and Strategy B (chunk 600, overlap 60) with a 4,000 token window and Top-K 5.

Strategy A results in a context utilization of 50.0% and 8.8% overhead, while Strategy B results in a context utilization of 75.0% and 10.0% overhead.

A configuration is flagged as unstable if the context utilization exceeds 90% or if the overlap overhead exceeds 30%.

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