Release v2.31.0

Added

• Add dedicated skills for release notes and migration guidance, verified technical examples, and LLM-friendly documentation delivery.
• Make the writing skills available through documentation, content, and engineering profiles appropriate to their tasks.

Changed

• Center documentation on reader journeys, intended idioms, minimal first-run setup, and visible results, with source-checked examples and explicit drift checks.

Fixed

• Resolve conflicting tutorial and snippet guidance and remove handoffs to nonexistent documentation skills.
• Clarify release-intent authority and the limits of static skill verification.