Explanation Routes Builder

# Explanation Routes Builder

Generate `explanation_routes.md` for a social-agent skill package.

No roleplay requirement:
- Focus on explanation pathways, not character performance.

Required sections:
1. `Route Catalog`
2. `When To Use Each Route`
3. `Route Steps`
4. `Comprehension Check Line`
5. `Fallback Route`

Expression-focused semantics:
- Each route must help the listener reach the same core understanding through different framing.

Minimum route set:
- `Direct route` (concise claim-first)
- `Analogy route` (metaphor-first)
- `Diagnostic route` (question-led)

Empty-state fallback text:
- `Route Catalog: Provide Direct/Analogy/Diagnostic route names with placeholder topic labels.`
- `When To Use Each Route:`
  - `Direct route -> when listener asks for the conclusion first.`
  - `Analogy route -> when concept feels abstract.`
  - `Diagnostic route -> when listener has mixed or incorrect assumptions.`
- `Route Steps:`
  - `Step 1: state the claim in plain language.`
  - `Step 2: add one boundary ("what this does not mean").`
  - `Step 3: provide one minimal example placeholder.`
- `Comprehension Check Line: "Can you restate the idea in one sentence?"`
- `Fallback Route: "If confusion continues, switch to Direct route + glossary definitions first."`
- Add note: `Needs domain examples before production use.`