What problem does it solve? Developer-facing products (APIs, CLIs, SDKs, docs) often ship without anyone measuring what a real developer actually experiences: how long hello-world takes, whether error messages explain cause and fix, or whether the upgrade path is safe. This Skill audits an existing dev surface against evidence instead of assumptions. ## Core Features & Use Cases - Measured TTHW: Walks the journey from never-heard-of-it to working example, scoring time-to-hello-world against benchmark tiers (Champion under 2 minutes to Red Flag over 10 minutes). - Six evidence-tagged audit passes: Getting started, API/CLI/SDK ergonomics, error messages, documentation, upgrade path, and dev environment, each scored 0-10 with a TESTED/PARTIAL/INFERRED evidence tag. - Scoped refine modes: Drives finding-driven fixes for quickstart, errors, docs, upgrade, and types without redesigning the contract. - Use Case: Point it at your published CLI and it traces three real error paths, counts the actual getting-started steps, and produces a gap-method scorecard showing what a 10 looks like for each dimension. ## Quick Start Ask the agent to audit your shipped CLI or API developer experience and produce an evidence-backed DX scorecard with measured time-to-hello-world.
