| name | readable-spec |
| description | Reads web platform specifications via WebFetch — uses the multipage HTML variant for the WHATWG HTML spec, anchor-targeted section reads for W3C TR documents and TC39 / ECMAScript. Returns the relevant section rather than the whole spec, since these documents are too large for a single fetch. Use when the URL is on *.spec.whatwg.org, w3.org/TR/, or tc39.es. |
Web Spec Reader
Specs are usually large single-page HTML documents. WebFetch them in sections rather than expecting the full body in one response.
WHATWG (CC BY 4.0)
Examples: html.spec.whatwg.org, url.spec.whatwg.org, dom.spec.whatwg.org.
The HTML spec has a multipage variant that is much friendlier to fetch:
https://html.spec.whatwg.org/multipage/{section}.html
Use the table of contents at https://html.spec.whatwg.org/multipage/ to find the right section URL, then WebFetch that page.
W3C (w3.org/TR/{shortname})
Read with WebFetch, optionally appending an anchor:
https://www.w3.org/TR/{shortname}/#{anchor}
W3C documents are licensed for reading and reference; do not republish or redistribute large excerpts.
TC39 / ECMAScript (tc39.es/ecma262)
https://tc39.es/ecma262/#sec-{section-id}
Section IDs are stable; the user often supplies one directly.
Strategy
- Identify the spec and target section from the URL.
- WebFetch with a tight prompt focused on the specific question.
- If the page is too large to digest, jump to the anchor or table-of-contents subsection.
Reference
