pureinn.docs
Phase 3b - Commercial Definition (alternative exit artifact)Agent mode: decisionv1.0.0

pm-scope-brief

Scope Brief - what exactly gets built on a commissioned build; Phase 3b alternative to the PRD

/pm-scope-brief

When to use

When the mandate is already given - a client commissioned the build, an exec directed it - and full Phase 3a validation + business-model work would re-answer an answered question. The market risk sits with the commissioner; what you owe them is a precise definition. Speculative products (your own market bet) use /pm-prd via full Phase 3a+3b instead - the skill runs a context fit check and says so.


What it produces

One artifact (product/scope_brief.md) - fills the PRD slot for Phase 4-5:

  • Problem framing (POV-lite) - even a directive build states the problem behind the mandate
  • Users and roles - three populations, provenance-marked
  • Business Capabilities - the named downstream interface: pm-entity-registry extracts entities from it, pm-features-list derives features from it, exactly as from PRD Section 7
  • Scope: IN / Deferred / Non-goals - each IN item with evidence + acceptance signal
  • References translated - directive references become bounded requirements with explicit "NOT copying" limits
  • Edge cases register - Exception-sweep findings, product-enforced ones tagged [CANDIDATE-BR] (seed the business rules register)
  • Integrations, data, content, operations - with client-side dependencies named
  • Acceptance - done-criteria, sign-off model, post-launch success measure
  • Change Log - after baseline, every scope change lands here first (in client work a scope change is a commercial event)

How to invoke

/pm-scope-brief           # interactive - proposes the scope cut, you confirm
/pm-scope-brief --agent   # autonomous draft; scope decisions still require your review

Guarded traps: a reference classified hypothesis never enters IN as settled; missing staff/admin capabilities get flagged (the classic launch failure); every IN item needs an acceptance signal.


Dependencies

Reads:

  • artifacts/phase-2-discovery/discovery-report.md - primary input (falls back to meetings/ notes + Track artifacts)
  • design-thinking-synthesis.md if Phase 3a ran

Produces for:

  • pm-entity-registry, pm-features-list - via Business Capabilities
  • pm-process-flows - roles and process context
  • pm-business-rules-library - [CANDIDATE-BR] edge cases

Related skills: pm-discovery-report, pm-prd, pm-entity-registry, pm-features-list, pm-process-flows, pm-business-rules-library