Outline Builder

Triggers & routing

• Trigger: outline builder, bullet outline, outline.yml, 大纲生成, bullets-only.
• Use when: structure 阶段（NO PROSE），已有 taxonomy，需要生成可映射/可写作的章节与小节骨架（每小节≥3 bullets）。
• Skip if: 已经有批准过且可映射的 outline（避免无意义 churn）。
• Network: none.
• Guardrail: bullets-only；移除 TODO/模板语句；每小节至少 3 个可检查 bullets。

outline/outline.refined.ok freezes a reviewed outline only while the marker is newer than the outline, all declared inputs, the defaults asset, and the generator. Upstream changes invalidate the marker and trigger a backed-up regeneration.

Build outline/outline.yml from either:

• outline/taxonomy.yml (legacy H3-first compatibility path)
• outline/chapter_skeleton.yml + outline/section_briefs.jsonl (section-first transition path)

Compatibility mode is active: this migration keeps the current output contract while moving intro/related defaults, Stage A bullet templates, and domain-specific comparison framing into references/ and assets/.