FabledScribe/plugin/skills/writing-plans/SKILL.md

name, description

name	description
writing-plans	Use when a piece of work has an arc — several steps toward one goal, worth tracking as a unit — and you want the approach reviewable before you start. Triggers when the user asks you to plan, design an approach, or scope an effort, or when work is about to sprawl across several steps. Not for single-step work. The plan lives in a Scribe milestone (via start_planning), not a local file.

Writing plans

A plan is how you'll execute a chunk of work — the design plus an ordered set of steps — written before you start, so the approach is reviewable and the work stays trackable.

First decide whether this work wants a plan

A plan lives in a milestone, and a milestone earns its place when the work has an arc: several steps, one shared goal, a beginning and an end worth tracking as a unit. That is the whole test, and it is a judgment about the shape of the work — not about its size, difficulty, or importance.

Plenty of real work has no arc. A bug fix, a one-file change, a question answered, a setting changed. For those, a milestone is a container with one thing in it: the ceremony costs more than it records, and it leaves the project with milestones that never meant anything. Use a task instead — set it in_progress, record what you find with add_task_log, set it done. That is a complete, honest record of work that didn't need a plan.

Some projects are milestone-shaped and some are a flat task list. Read the project you are in rather than imposing a shape on it.

Then look for the plan that already exists

Before you start a plan, find out whether the project already has one for this work. A roadmap is often written ahead of the work as milestones with a goal and no steps yet, and those are exactly the plans a session misses: they have nothing in them to show up as open tasks.

• enter_project lists the recent milestones and, under unplanned_milestones, the active ones with no steps.
• search(content_type="milestone", project_id=...) finds a plan by what it is for. list_milestones reads the whole roadmap.

When an active milestone already covers the work, the plan is that milestone. Read it with get_milestone, add your steps with create_records(milestone_id=<its id>, records=[…]), and revise its body with update_milestone if what you know now changes the design. Opening a new milestone beside it splits one piece of work across two plans, and neither shows the whole. A second milestone is right only when the work is a separate arc: a different goal that would still make sense if the first plan were done.

The same holds for single tasks. Work that belongs to an existing plan is created with that milestone's milestone_id, not left loose beside it.

start_planning and create_milestone check too. When an active milestone in the project has the same title or reads as the same plan, they return it as existing_milestone and create nothing. Add to that plan, or pass force=true only when you have read it and this really is separate work.

When it does: start the plan in Scribe, not a file

Call start_planning(project_id, title) before designing or implementing — so the milestone exists to write into, rather than being backfilled from work already done. It creates a milestone (the plan container) seeded with a design template and returns the milestone id plus the project's applicable rules. The plan lives in that milestone:

• The design/intent goes in the milestone body — pass it as start_planning(..., body=...), or edit it later with update_milestone(milestone_id, body=...).
• Each step is its own task under the milestone. When you know the steps, pass them in the same call — start_planning(..., steps=[{title, body}, …]) — and the milestone and every step are created together. Add steps later with create_records(milestone_id=<that milestone>, records=[…]), or create_task for one. Track each with status + add_task_log. Steps are first-class tasks, not checkboxes in the body.
• Read the whole plan back with get_milestone (body + its step-tasks).

Never write an id you have not been given. A plan body that says "see #4012" before #4012 exists is a guess, and other sessions and users are creating records from the same sequence at the same time — the number goes to whoever creates next, and the plan then points at their record. Scribe refuses a body citing an id that has not been assigned. Where the plan and its steps need to cite each other, write a placeholder instead: {{ref:N}} is the Nth step in the list, {{ref:milestone}} is the milestone. They are replaced with the real id and title as the records are created.

Do not write plans or specs to local .md files — the milestone is the record, not a file on disk. (The old kind=plan task is retired; start_planning no longer creates one.)

Before designing from scratch, recall: search Scribe for a related prior decision or note. Often the thinking (or half of it) already exists.

What a good plan contains

• Goal — what "done" looks like, and why, in a sentence or two (milestone body).
• Approach — the key design decisions and the trade-offs you chose, briefly (milestone body).
• Steps — an ordered set of step-tasks under the milestone, each small enough to verify on its own; note which files/areas each touches.
• Verification — how you'll know it actually works (a test, CI, an observable behavior), not just "it's written."

While executing

• Keep the plan honest: drive each step-task's status (todo → in_progress → done) as it lands; record decisions, findings, and pivots with add_task_log on the relevant step rather than silently rewriting the body.
• If reality diverges from the plan, update the milestone body — a design that no longer matches what you're doing is worse than none. Add or re-scope step-tasks as the work changes.
• Mark the milestone done when its steps are complete.

Match depth to the work

A two-step change deserves a two-line plan; a multi-day effort deserves a fleshed-out milestone body and several step-tasks. Don't over-plan the trivial, and don't under-plan something that will sprawl. The point is a shared, reviewable intent — not ceremony.