What problem does it solve? Plans for developer-facing products (APIs, CLIs, SDKs, libraries, docs) often ship with onboarding friction, weak error messages, and missing upgrade paths that only surface after adoption stalls. This Skill audits a plan against proven developer experience benchmarks before implementation begins. ## Core Features & Use Cases - Eight scored DX passes: Evaluates getting started, API/CLI/SDK design, error messages, documentation, upgrade paths, dev environment, community, and DX measurement, each rated 0-10 with a trend-aware scorecard. - Persona-driven investigation: Builds a developer persona, empathy narrative, competitive benchmark, magical moment spec, journey map, and first-time-user confusion report before scoring. - Three review modes: DX EXPANSION for competitive advantage, DX POLISH for hardening every touchpoint, and DX TRIAGE for critical gaps only. - Outside voice cross-check: Runs an independent Codex or Claude subagent review and surfaces cross-model disagreements for user decision. - Use Case: Before building a new CLI tool, run a DX review on the plan to discover that installation requires five manual steps, then decide interactively how to reach a one-command install with a sub-5-minute time-to-hello-world. ## Quick Start Ask the agent to run a developer experience review on your plan document, for example by saying "run a DX review on my API launch plan".
