skill-creatorlisted

<!-- x-source: agent-skill-builder/SKILL.md @ dfe7aa2 --> # skill-builder — Skills That Don't Rot Takes a plain-language description of a task and produces a ready-to-ship agent skill. The design goal is skills that are cheap in ambient context and current with the skill spec — most skill generators fail on exactly those two axes: they don't know about `arguments`/`argument-hint`, never suggest `disable-model-invocation`, and write bloated descriptions that tax every session. ## Modes Parse $ARGUMENTS for a mode; default to `new` when the input is a description. - **`new <description>`** — scaffold a skill from scratch (the flow below). - **`review <path>`** — audit an existing SKILL.md against steps 1–3's decision points and run the validator (step 4). Report findings; don't rewrite unless asked. - **`migrate <path>`** — convert a legacy `.claude/commands/*.md` file into a skill directory: carry the frontmatter over, apply the review checklist, and place supporting content in the directory. ## Before You Start Read [references/claude-code-frontmatter.md](references/claude-code-frontmatter.md) — a **pinned, dated snapshot** of the skill frontmatter spec, argument substitutions, and context-loading behavior. Staleness policy: if the snapshot date is more than 3 months old, **warn the user and continue with the pinned snapshot**. Do not re-fetch or modify the reference mid-generation — updating the spec is a maintenance operation (agent-skill-builder's `spec-drift` CI w