What's wrong with this entry?
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What
Improved error message for agent files missing required frontmatter.
Change: Now specifically mentions 'description' in the error message rather than generic field name.
Evidence
Agent validation (search for "is missing required 'description' in frontmatter")
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
Related
Other releases about the same thing. Found by shared names or similar wording; neither means one caused the other.