skill-creator

/skill-creator — Skill Scaffolder

Meta-skill for building new skills into this parity package (or any project's .agent/skills/ directory). This is the closest equivalent to Claude Code's skill-authoring workflow, adapted to Antigravity's Agent Skills format.

When to run

• The user asks to turn a repeated task, checklist, or workflow into a skill.
• The user says "make a /x command" for something not already covered.

Steps

1. Clarify scope in one pass, not a back-and-forth. Infer from context:

   • What triggers it (explicit /name, or natural language cues)?
   • What should it actually do, step by step?
   • Does it need helper scripts, or is it pure instructions? If the request is genuinely ambiguous on a make-or-break detail, ask one question — otherwise pick a sensible default and proceed.

2. Choose a name — lowercase, hyphenated, matches the intended /name invocation. Check it doesn't collide with an existing skill in this repo or Antigravity's native commands.

3. Write the description — third person, states both what it does and when to use it, with 2-4 concrete trigger phrases in quotes. This field is the only thing the agent sees before deciding to load the skill, so it has to be self-sufficient — no context from the rest of the file.

4. Write the instructions body as numbered steps, not prose paragraphs. Be explicit about:

   • Preconditions (what must exist before this skill runs)
   • The exact output artifact (file, message format, etc.)
   • Anything the skill should refuse or flag rather than guess at

5. Add supporting files only if needed:

   skills/<name>/
   ├── SKILL.md
   ├── scripts/     # only if the task needs deterministic code, not LLM judgment
   ├── examples/    # only if a worked example meaningfully improves output
   └── resources/   # only for templates/boilerplate the skill fills in
   

6. Place it at skills/<name>/SKILL.md in this repo (or .agent/skills/<name>/SKILL.md for a project-local, non-shared skill).