Changelog Writer

Writes external, end-user-facing changelog entries with personality — modeled on what Slack, Basecamp, Linear, Raycast, and Tumblr do well: voice and confidence first, jokes used sparingly and only in service of the fact, never replacing it.

This skill is for external/end-user changelogs. If the audience is internal engineering or the changelog needs to double as a searchable technical record (breaking changes, API versioning, migration notes), this tone is the wrong trade — use a precise, Stripe-style format instead and skip this skill.

Reference files:

• references/voice-examples.md — annotated examples of the tone done well (Slack, Basecamp, Tumblr, Raycast, Linear) and done badly, for calibration
• references/draft-format.md — the full spec for the intermediate draft format the scripts parse

Scripts (in scripts/) — run these against every draft before presenting a final version:

• check-all.mjs — runs everything below and gives one pass/fail report
• check-structure.mjs, check-sass-budget.mjs, check-voice.mjs, check-length.mjs, check-cadence.mjs