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opelplepleopelpleple/meta-skills/scope-cutter/SKILL.md

scope-cutter

Skill0 starsChanged 5 months agoMITView on GitHub

Takes an ambitious idea and aggressively cuts it down to the smallest version that is still valid, useful, and shippable — a true MVP — killing scope creep before it starts. Use this skill when the user has a big feature or project and says "this is getting big", "what's the MVP?", "help me scope this down", "where do I start", "this feels like too much", or is planning a build that's ballooning. Forces a ruthless distinction between what proves the core hypothesis now and what is genuinely "later".

2 other projects use a version of this.

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The file

We split this skill into the rules it gives an agent

3 rules. About 0 are common, 3 are distinctive, and 0 are very specific to this project.

  • ≈0

    Common · estimate

    Many files like this have a rule of this kind.

  • ≈3

    Distinctive · estimate

    This author's own choices. Worth a look.

  • 0

    Very specific

    Tied to their project's names, files or tools. Probably skip.

  • Common
  • Distinctive
  • Very specific
  1. Distinctive:

    Write the explicit NOT list — what v1 deliberately does not do.

    line 29
  2. Distinctive:

    Must: log a habit, see today's status.

    line 50
  3. Distinctive:

    NOT list: no login, no social, no AI, no multiple habits, no integrations.

    line 53

≈ “Common” is an estimate: at least 1 in 5 of the 350,495 skill files we read have a rule of the same kind, not the same words. “Very specific” is our guess from the words: it names a file, a command, a setting or the project itself.

Keep what fits and drop the rest. Your version, ready for your agents.
Files
SKILL.md

Scope Cutter

Find the smallest thing that is still true to the idea and could ship this week. Everything else is a "later" until proven otherwise.

When to use

  • An idea or feature list is ballooning past what one person/sprint can ship.
  • The user asks "what's the MVP?" or "where do I start?"
  • Planning a build and wanting to de-risk by shipping something small first.
  • A roadmap where everything is labeled "must-have."
  • Procrastination born of a project feeling too big to begin.

When NOT to use

  • Safety-critical or compliance work where cutting corners is dangerous (scope is the requirement).
  • The "small version" would be misleading or actively harmful as a half-thing.
  • The user has already shipped an MVP and now legitimately needs to scale it.
  • Pure research/exploration with no shippable artifact yet.

The method

  1. Name the core hypothesis in one sentence: "This is worth building if [the one thing we believe] is true." Everything serves testing that.
  2. List every feature/requirement the user has in mind — get it all out.
  3. Sort each into exactly three buckets: Must (the idea is meaningless without it), Should (real value, not essential to prove the hypothesis), Later (everything else). Force a true split — if everything is "Must," re-ask "would the very first user still get value without this?"
  4. Attack the Musts. For each, ask: "Can this be faked, manual, smaller, or hardcoded for v1?" A spreadsheet, a manual step, or one hardcoded case often replaces a system.
  5. Define the walking skeleton: the thinnest end-to-end slice that a real user could actually use and that proves the hypothesis.
  6. Write the explicit NOT list — what v1 deliberately does not do. This is the scope's fence; naming it prevents creep.
  7. Sanity-check shippability: could this ship in days, not months? If not, cut again.
  8. Output: the one-sentence hypothesis, the v1 slice, the NOT list, and the first thing to build.

What good looks like

  • The v1 is embarrassingly small and still proves the core hypothesis.
  • There's an explicit, written list of what v1 will NOT do.
  • "Manual for now" or "hardcoded for now" appears at least once.
  • The user can start building today and a real user could touch it within days.
  • Cut features are parked in "Later," not deleted — the ambition survives, the v1 shrinks.

Anti-patterns

  • "MVP" that's actually a full product with a smaller logo.
  • Everything marked Must; nothing genuinely cut.
  • Building infrastructure for scale no one has yet ("we'll need sharding").
  • Cutting so hard the result no longer tests the hypothesis (that's not an MVP, it's nothing).
  • Skipping the NOT list, so scope quietly creeps back in.

Example

Idea: "A platform where users track habits, with social feeds, streaks, AI coaching, gamification, and integrations with five wearables."

  • Core hypothesis: "People will return daily to log a habit if it's frictionless."
  • Must: log a habit, see today's status. Should: streaks, history. Later: social, AI, gamification, wearables.
  • Attack the Musts: no accounts yet — one hardcoded user. No DB schema for "habits" plural — start with one habit, one button.
  • Walking skeleton: a single page with one button, "Did you do it today? ✓", and a count of days done. Stored locally.
  • NOT list: no login, no social, no AI, no multiple habits, no integrations.
  • First thing to build: the button and the daily counter. Ships this week; tells you if anyone comes back tomorrow — which is the only thing that matters yet.

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