Add pulser init — scaffold a new skill from template

[TheStack-ai]

Context

There is no scaffolding command. Users manually create directories, write frontmatter, add sections. The prescriber (src/prescriber.ts) already knows the recommended structure per skill type, but this knowledge is only used for fixing existing skills.

Proposed

pulser init my-skill --type analysis

Generates:

~/.claude/skills/my-skill/
  SKILL.md      # Valid frontmatter + Gotchas + structure
  eval.yaml     # Test skeleton

What to do

1. Add init subcommand in src/index.ts
2. Create src/init.ts with template logic
3. Reuse constants from src/prescriber.ts (RECOMMENDED_TOOLS, GOTCHAS_TEMPLATES) to generate valid SKILL.md per type
4. Accept --type flag (analysis, research, generation, execution, reference) or prompt for it
5. Generate an eval.yaml skeleton with one example test

Why this matters

The recommended workflow is: create skill → run pulser → fix issues. But step 1 has zero tooling. This closes the loop.

Files to modify

• src/index.ts (subcommand)
• New: src/init.ts
• Reuse: src/prescriber.ts constants

Difficulty: Medium-Hard