Answer a question. Open its source.
For: Application and agent developers
Ask, API and MCP consume the same current World and return evidence from the same version.
An answer can sound confident while depending on stale, conflicting or untraceable source material.
- Input
- A question and the current World
- Action
- Ask, then inspect the returned evidence
- Output
- A version-bound answer and source locators
From a question to a citation you can open.
- 01
Ask the active World
- 02
Retrieve qualified objects
- 03
Generate with version context
- 04
Attach evidence
- 05
Decline when nothing matched
What an answer carries with it.
- Answer and evidence share one World version
- Citation inspection at the exact source location
- Declines when nothing matched
- Model-independent knowledge
Check the sample
A real question and a returned passage.
What were operating expenses for research and development?
Operating expenses: Research and development 10,887 8,268 Selling, general and administrative 7,492 7,175 Total operating expenses 18,379 15,443
A passage returned for the curated research-and-development question. Open the source and judge whether it answers the question.
The passage above is one of the retriever’s actual matches for this curated question. Open its locator to judge the answer’s relevance yourself.
Five public Apple filings, compiled with the TypeScript sample compiler.
WHAT TO PLAN FOR Before your first compile
The World returns the regions that matched and their locators, and declines when nothing matched at all. Judging whether what matched answers the question is the reader’s call, and the evidence is there to make it.
Ask, the API and MCP read the same active revision, so an assistant is as current as the last activation.
Model choice is yours; the World is the contract.
Planning a first compile? See how a design partnership works.
Next: Use a World somewhere else in Resources, or the exact product contract in the documentation.