name: author-playbook-play description: Add a new play to hogsend.com/playbook (apps/docs/content/playbook). Use whenever someone wants a new playbook item — it walks the whole contract end to end - frontmatter, the intro + five-part template in the right register, the copy rules (tool-agnostic play steps, honest facts, valid engine snippets), the dogfood weekly-rotation sync, and the verification gates. The plays shipped in #492 follow this shape.

Author a playbook play

A play is a ~300–600 word micro-play at apps/docs/content/playbook/<slug>.mdx, rendered at hogsend.com/playbook/<slug>. It must survive the "is this from real work?" test — same discipline as the marketing copy register.

1. Frontmatter (validated by source.config.ts — unknown slugs fail the build)

---
title: Imperative, outcome-first (max ~60 chars)
description: One sentence, for meta tags and cards.
hook: The one-line symptom the reader recognizes — present tense, their pain.
category: one of activation | onboarding | retention | revenue | winback | referral | deliverability | measurement (registry: lib/playbook/categories.ts)
personas: [] or a subset of gtm | founders | recruiters | internal | agencies (registry: lib/playbook/personas.ts; empty = everyone)
channels: subset of email | sms | ads | video (registry: lib/playbook/channels.ts) — only channels the play's body actually uses; feeds the filter drawer
tags: [two, or, three]
date: YYYY-MM-DD
timeToResults: honest — "same day", "one week", "2–4 weeks", "ongoing"
---

Do NOT set blueprint: unless a same-id Journey Blueprint actually exists and has been verified end-to-end (create via admin API → hogsend blueprints list → promote --dry-run). No unverified Installs badges.

2. Body structure — intro + the five parts, in this exact order

1. Intro paragraph (no heading, right after frontmatter): one or two sentences of plain language saying what the play IS. No code, no event names, no product names beyond "email".
2. ## When to run it — the trigger/symptom, who feels it.
3. ## Why it works — the mechanism. A real number ONLY if we honestly have one; never invent statistics. Mechanism reasoning beats fake benchmarks.
4. ## The play — a numbered list of steps in general terms: someone on any stack (or no stack) could hand this section to an engineer and get the play built. No event.names, no Hogsend APIs, no vendor lock. "Track two moments", not "emit setup.step_started".
5. ## Ship it with Hogsend — the Hogsend reference implementation. A short lead-in sentence, then a defineJourney() snippet that would actually compile: real API only (ctx.waitForEvent, exitOn, entryLimit + entryPeriod, suppress is required meta, ctx.guard.isSubscribed() after long waits, distinct idempotencyLabel when the same template sends twice). Event names live HERE. Cross-link the deeper recipe (/docs/recipes/...) when one exists.
6. ## How you'll know — the metric: outcome within a window, framed as a funnel/lift the reader can actually build. Link /docs/conversions/impact where holdout/lift talk earns it.

3. Register rules

• Every line a fact (deletion test). Guide-through voice, why-first.
• No hype adjectives, no "unlock", no invented percentages.
• The hook and title must not overlap word-for-word with the intro.

4. The install path is the agent prompt — it's automatic

The play page ships a "Copy for your agent" block (components/playbook/copy-play-prompt.tsx + lib/playbook/prompt.ts) that wraps the raw MDX as an implement-this prompt. It reads the file directly — nothing to wire per play. This is WHY section 4's steps must be tool-agnostic: the prompt is handed to agents on stacks that aren't Hogsend.

5. Sync the weekly rotation

The dogfood repo (hogsend-dogfood, sibling checkout) sends one play a week: src/journeys/playbook-weekly.ts holds a hand-synced PLAYS array (slug/title/hook). Append the new play there (append-only — never reorder or remove while enrollments are active; each week is anchored by sleep + idempotency labels derived from the slug).

6. Verify before commit

pnpm biome check --write apps/docs
pnpm --filter @hogsend/docs check-types
pnpm --filter @hogsend/docs build     # validates frontmatter + MDX

Then run the real app (pnpm --filter @hogsend/docs exec next dev --port 3105 if 3005 is busy) and screenshot the play page AND the index with the new card — no HTML mockups. Check: intro renders above the numbered 01–05 sections, list markers show, the copy button copies the full prompt.

One commit per play, conventional format, e.g. feat(docs): playbook play — <slug>.