validating-feeds

name	validating-feeds
description	Validates RSS and Atom feeds against their specifications — well-formedness, required elements, and date formats — and reports each violation with its element path. Use when a feed reader rejects a feed or after changing feed generation.
model	claude-sonnet-5
context	fork
allowed-tools	Read, Bash

Validate feeds

Check each named feed file against its specification and report violations with element paths.

Steps

1. Parse the feed. Report an XML error with its line and column and stop, because element checks on a malformed document report noise.
2. Check the required elements for the detected feed type, and check each date's format.
3. Report one table: element path, rule, and the violating value.