# Query.Farm

> Query.Farm builds DuckDB extensions, Haybarn, and the Vector Gateway Interface (VGI). This file is the stable discovery hub for agents and automated clients.

## Exact machine-readable references

- [Haybarn function discovery](https://query.farm/products/haybarn/functions/llms.txt): Interpretation rules, snapshot indexes, and agent workflow.
- [Haybarn function release manifest](https://query.farm/products/haybarn/functions/api/v1/releases.json): Versioned snapshot provenance and canonical JSON and Markdown links.
- [Haybarn function JSON schema](https://query.farm/products/haybarn/functions/api/v1/function.schema.json): Schema version 1 function document contract.
- [Haybarn extension catalog](https://query.farm/products/haybarn/extensions/catalog.json): Extension metadata and availability by release and platform.
- [VGI documentation index](https://query.farm/vgi/llms.txt): Protocol concepts and SDK documentation grouped by language.

## Product and editorial indexes

- [Haybarn](https://query.farm/products/haybarn/): DuckDB distribution overview, installation, compatibility, security, extensions, and playground.
- [Query.Farm extensions](https://query.farm/products/extensions/): Maintained DuckDB extensions with per-extension structured function exports.
- [VGI](https://query.farm/vgi/): Vector Gateway Interface overview and implementation guidance.
- [Orchard](https://query.farm/products/orchard/): Discover and publish VGI data connectors.
- [Blog](https://query.farm/blog/): Technical articles and release analysis.

## Guides

- [duckdb-wasm-startup-time](https://query.farm/blog/duckdb-wasm-startup-time/): Switching from @duckdb/duckdb-wasm to @haybarn/haybarn-wasm: startup benchmarks, extensions on the multithreaded build, and prefetchExtensions().

## Usage policy

Query.Farm publishes Content Signals permitting search and AI-assisted answers while reserving model-training rights: search=yes, ai-input=yes, ai-train=no.