v2.20.0

Added

• clarify skill — the shared questioning core: code-first exploration,
  bisect-to-intent, fuzzy-term sharpening, scenario stress-tests, and an
  assumptions audit. Usable standalone (/clarify) or as the base other skills
  build on.
• promptimize skill — turns a rough prompt into one optimized,
  model-agnostic prompt and returns only the prompt. Builds on clarify.
• Eye-verify harness for frontend-quality — a shipped scripts/lib.mjs
  helper library (createChecker, capturePageIssues, withFailedRoute) and a
  references/eye-verify.md coverage-contract guide, so a project gets
  browser-verification plumbing without building its own. console.mjs gained an
  --axe accessibility/contrast pass, screen-reader-attribute leak scanning, and
  application-request (xhr/fetch) failure gating.
• Dependency-aware spec workflow — write-spec phases now declare an
  immutable ID and Depends: edges; implement-spec computes each ready
  "wave" and can implement independent phases in parallel under an explicit
  opt-in, with write-disjoint and DAG-validation safeguards. Specs without the
  new metadata fall back to the existing sequential behaviour.

Changed

• interview now builds on clarify (declares boost-requires: clarify) —
  the grilling disciplines live in one place instead of being duplicated across
  skills.
• migration-squash is now invoke-only (disable-model-invocation: true).
  It no longer auto-activates on incidental mentions of migrations or
  schema:dump; run it explicitly (/migration-squash) or by directly asking
  for a squash. This matches its destructive nature — a squash deletes migration
  files.

Internal

• validate-skills.php now runs node --check over every shipped
  */scripts/*.mjs companion asset, not only the codex-review wrapper.
• Documented the boost-requires skill-dependency system in the README.

Full Changelog: 2.19.0...2.20.0