Catch-up — Make Your Product Readable by Agents, Not Just People
A documented format that agents can construct is a product interface, even when it is just a URL.
- Simon Willison reports that Tiny Little Office stores document data in the URL fragment, making each document a bookmarkable, shareable link.
- Willison reports that Tiny Little Office provides an llms.txt file explaining how agents can construct document-rendering URLs.
- Tiny Little Office describes itself as an office suite whose documents live entirely in links and are made by writing a URL.
- Tiny Little Office says links should remain under 2,000 characters and warns that hand-written links receive no checks.
Catch-up written 24 October 2026 for 2026-10-15; covers a source published 2026-10-15.
Products become easier to adopt in agent workflows when the machine-readable instructions and the shareable output use the same simple contract.
Choose one feature and document the exact input or URL shape an agent should create. Include examples, limits, and a check for malformed output.
Put it to work 30 minutes
An agent-readable feature contract with two worked examples
Write a one-page llms.txt for one feature: what it does, the exact URL or input format, two worked examples, and the length or validation limits.
See a worked example
Use a real, bounded workflow and record unknowns rather than estimating them. Keep the result small enough to review with a teammate.
- Workflow or decision
- A real workflow the team repeats each week.
- Evidence to record
- Quality, time, cost, failures, and reviewer notes.
- Decision rule
- Keep the current approach unless the agreed checks pass.
Your turn
Name the exact case you will test.
List the observations needed to make the decision.
Write what the evidence will make you do.
Your draft stays in this browser. No account needed.
Fragment-stored documents are only as private as the link. The llms.txt says a hand-written link is checked by nothing, so agents can still produce broken documents.
Reported facts and quotations were checked against the named sources; the recommended exercise is editorial guidance to test in your own context.
Can an agent create a valid, shareable result from the instructions alone?
Watch: Successful results from both worked examples · Malformed links or inputs produced by an agentKeep Going