What problem does it solve? Plans for developer-facing products (APIs, CLIs, SDKs, libraries, platforms) often ship with onboarding friction, weak error messages, and missing migration paths that only surface after adoption stalls. This Skill runs a structured, interactive developer experience audit of a plan before implementation, scoring each DX dimension and forcing explicit decisions on every gap. ## Core Features & Use Cases - Eight scored DX passes: Getting Started, API/CLI/SDK design, error messages, documentation, upgrade paths, dev environment, community, and DX measurement, each rated 0-10 against a hall-of-fame reference (Stripe, Vercel, Elm, Rust). - Three review modes: DX EXPANSION for competitive advantage, DX POLISH for full touchpoint coverage, and DX TRIAGE for critical gaps only. - Persona-grounded investigation: builds a developer persona, empathy narrative, competitive benchmark, magical moment spec, journey map, and confusion roleplay before scoring. - Outside voice cross-check: optionally runs an independent Codex or Claude subagent review and surfaces cross-model disagreements for user decision. - Use Case: Before building a new public SDK, run a DX review on the plan to discover that onboarding requires five setup steps, then decide interactively which friction points to fix and emit a scorecard plus implementation tasks. ## Quick Start Ask the assistant to run a DX review of your developer-facing product plan, for example by saying "run a devex review on my API launch plan".
