What problem does it solve? Plans for APIs, CLIs, SDKs, and developer platforms often ignore developer experience until adoption stalls. This Skill audits a plan before build, scoring onboarding friction, API design, error messages, docs, upgrade paths, tooling, community, and DX measurement so gaps are fixed on paper instead of in production. ## Core Features & Use Cases - Eight scored review passes: Getting Started, API/CLI/SDK design, error messages, documentation, upgrade path, dev environment, community, and DX measurement, each rated 0-10 with a trend-aware scorecard. - Persona-grounded investigation: Builds a developer persona, empathy narrative, competitive benchmark, magical moment spec, journey map, and first-time confusion report before scoring. - Three review modes: DX EXPANSION for competitive advantage, DX POLISH for hardening every touchpoint, DX TRIAGE for critical gaps only. - Outside voice check: Optionally runs an independent Codex or subagent review and surfaces cross-model disagreements for the user to decide. - Use Case: Point it at a plan for a new public API; it walks you through each friction point with a decision brief, then emits a DX scorecard, implementation task list, and TODOS.md candidates. ## Quick Start Ask the assistant to run a DX review on your developer-facing product plan, for example: "Run a devex review on my API launch plan."
