FEATURES_SPEC/AGENTS.md describes how an exploration is distilled into a
feature spec and how a spec is turned into PRs against a current main; the
product spec template is the sidecar a brainstorming session fills in.
The folder is excluded from oxfmt: a product spec is immutable once a spec
leaves draft, and the process documents are prose in their own style.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
