Write Draft Substack Note (Substack Notes Writer)

Substack Notes' sibling to /write-draft-x — same short-form, single-post shape (Substack Notes have no thread concept), reusing Draft-Note.md rather than a new template, just a different voice source.

Arguments

• idea-id (optional) — draft one specific idea for a Substack Note. If omitted, draft every idea with a substack-note entry in platform_schedule that doesn't already have a Substack Note draft linked to it.

Process (per idea)

1. Load context

Read the Idea Note and every research note in its sources[]. Same verify-or-drop discipline as every writer skill in this pipeline.

2. Read the voice guide and playbook

Read Content-Learnings/voice-guide-substack.md's Notes section, fresh each run. Check Content-Learnings/playbook-substack.md's Notes tables for an evidenced rule before falling back to the generic default.

3. Draft the note

Short, casual, conversational — more off-the-cuff than a polished feed post, per voice-guide-substack.md. No hashtags (Substack Notes don't use them). No thread concept — if an idea genuinely needs more room than one Note comfortably holds, that's a signal it belongs to /write-draft-x (as a thread) or /write-draft-substack-article instead, not a reason to force it into an oversized single Note.

4. Write the Draft Note

Copy _Templates/Draft-Note.md into Drafts/ as YYYY-MM-DD--kebab-slug.md, using the idea's platform_schedule entry for substack-note. Fill in idea_id, platform: substack-note, category, format, hook_style, hashtags: [], thread: [] (always empty here), sources, status: draft, history: [{action: created, date: today, note: ...}].

5. Update the idea

Same rule as the other writer skills: flip status: selected → drafted only if this was its last unclaimed platform.

Report back

Show the full note text and character count, and which research sources backed it.

Hard rules

• Never invent a fact, statistic, or quote not present in the linked research notes.
• Never draft an idea that doesn't have a substack-note entry in platform_schedule.
• Never use hashtags — not a Substack Notes convention.
• Never mark anything approved, ready-to-publish, or published.