skill-builderlisted

# skill-builder Author new universal skills from natural-language prompts across any agent host (Claude Code, Cursor, Codex, Gemini CLI, Windsurf, OpenCode, and the rest of the 50+ agents in the vskill registry). ## What this skill does `skill-builder` is a cross-tool authoring meta-skill. When the host agent sees a trigger phrase (see frontmatter `description`), this skill takes over and produces a new SKILL.md — emitted for every target agent, not just the one currently invoking it. The emitted skills carry an `x-sw-schema-version: 1` marker so future tooling can evolve the format without breaking older installs. It does this by delegating to the real generator via a three-path fallback chain: - **Path A — `vskill skill` CLI** (preferred). The CLI owns the full authoring pipeline: prompt parsing, target-agent lowering, divergence report, security scan, and disk write. - **Path B — vskill Studio (browser)**. When the CLI is not on PATH but the npm package is present (e.g. a project-local install), start the eval server and walk the user through the Studio UI. - **Path C — Anthropic `skill-creator`** (Claude Code only fallback). Delegate to the built-in Anthropic authoring skill. This produces a single Claude-flavored SKILL.md with no universal targets, so we log the degradation so users know what they're getting. Each path is tried in order; the first one whose detection check succeeds wins. If none match, we emit a remediation message and stop. ## Detec