LensLink: An AI Camera Compatibility Agent Powered by Structured Sanity Content

Egbuta ifeanyi chukwu — Fri, 02 Oct 2026 14:32:18 +0000

This is a submission for the Sanity Challenge, Path One: Ship an Agent That Queries Real Content.

What I Built

LensLink is an AI camera and lens compatibility agent that answers whether a lens can be used with a camera using structured Sanity content rather than relying only on generic model knowledge.

The content models relationships between cameras, mounts, lenses, adapters, compatibility rules, and sources.

Demo

Live demo: https://lenslink-civq.onrender.com

Try these:

Is the Canon RF50mm F1.8 STM compatible with the Canon EOS R5?

Can I use the Canon EF50mm f/1.8 STM on the Canon EOS R5?

Is the Canon EF-M 22mm f/2 STM compatible with the Canon EOS R5?

These demonstrate direct compatibility, adapter-required compatibility, and an unsupported/evidence-limited case.

Code

GitHub: https://github.com/egbutaify2-ui/sanity-lenslink-agent

How I Used Sanity

I modeled the camera compatibility knowledge as structured Sanity content, including:

Camera → Mount

Lens → Mount

Adapter → From Mount / To Mount

Compatibility Rule → Camera / Lens / Adapter

Source → supporting evidence

I pointed Sanity Context at the LensLink Knowledge Base built from this structured content.

The agent uses these Context MCP tools:

initial_context

knowledge_base_search

knowledge_base_read

For each compatibility question, LensLink retrieves the relevant structured records before Gemini generates the answer.

For example, for the EF50mm + EOS R5 case, the agent can reason across:

EOS R5 → Canon RF Mount

EF50mm → Canon EF Mount

Canon EF-EOS R Adapter → Canon EF → Canon RF

This lets LensLink determine the documented adapter-required path instead of simply guessing from the product names.

Sanity Project Details

Project ID: kv3pdv23

Dataset: production

Agent Session

Agent session evidence is optional, so I have not included a transcript in this submission.

DEV Community: Egbuta ifeanyi chukwu

I’m excited to share that I joined the Sanity Challenge 2026 — Path One: Ship an Agent That Queries Real Content. https://dev.to/egbutaify2ui/lenslink-an-ai-camera-compatibility-agent-powered-by-structured-sanity-content-415l