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mattgierhart

prd-v03-feature-value-planning

by mattgierhart

PRD-driven Context Engineering: A systematic approach to building AI-powered products using progressive documentation and context-aware development workflows

9🍴 2📅 Jan 24, 2026

SKILL.md


name: prd-v03-feature-value-planning description: Define and prioritize features with strategic traceability during PRD v0.3 Commercial Model. Triggers on requests to define features, prioritize capabilities, scope MVP, map features to pricing tiers, identify parity vs. delta features, or when user asks "what features do we build?", "what's in MVP?", "which features matter?", "feature priority", "parity features", "what's our delta?". Consumes KPI- (Outcome Definition), BR- (Pricing Model, Moat), and CFD- (Market Moat Analysis) from v0.3. Outputs FEA- entries with strategic traceability and BR-FEA- governance rules. Feeds v0.4 User Journeys.

Feature Value Planning

Position in HORIZON workflow: v0.3 Market Moat Analysis → v0.3 Feature Value Planning → v0.4 User Journeys

Features are the unit of value. Every feature must trace back to why it exists (outcome, moat, competitive position, or pricing tier).

Feature Classification Framework

TypeDefinitionStrategic PurposeEvidence Required
MoatBuilds/defends competitive advantageSupports BR- moat ruleHigh (CFD- proving differentiation)
OutcomeDirectly drives success metricTied to KPI- entryHigh (KPI- link mandatory)
ParityMatches competitor baselineFrom Competitive LandscapeMedium (CFD- competitor evidence)
DeltaDifferentiation from competitorsOur advantage over marketHigh (CFD- gap evidence)
TierDifferentiates pricing packagesFrom Pricing BR-Medium (BR- tier assignment)
Table StakesExpected but not differentiatingIndustry standardLow (common knowledge)

Rule: P0 features require Moat, Outcome, or Delta classification. Table Stakes alone cannot justify P0.

Product Type × Feature Strategy

Feature focus varies by product type (from v0.2 classification):

Product TypePrimary FocusParity ApproachDelta Approach
Fast FollowParity + focused delta1:1 critical feature matchSingle compelling improvement
InnovationMoat-building featuresMinimal (new category)Core differentiation IS the product
SliceSegment-specific featuresPartial (niche needs differ)Deep fit for underserved segment

Fast Follow Constraint

BR-FEA-PARITY-FIRST: No delta features until parity features complete. Users compare to incumbent first.

Innovation Pattern

Moat features = 60%+ of scope. Table stakes minimized. Delta is the entire value proposition.

Slice Pattern

80/20 rule: Match 20% of incumbent features that serve 80% of niche use cases. Delta = niche-specific depth.

Priority Tier Criteria

TierCriteriaEvidence Threshold
P0 — Must HaveBlocks launch without it; tied to primary KPI- or moat BR-CFD- proof + KPI-/BR- link
P1 — Should HaveMeaningfully improves outcome; supports tier differentiationCFD- user signal
P2 — Nice to HaveEnhances experience; no direct KPI impactReasonable assumption OK
P3 — Defer/CutScope creep signal; can add post-launchNone (remove from scope)

Kill criterion: If >40% of features are P2/P3, scope is bloated. Re-evaluate.

FEA- Output Template

Create FEA- entries in this format:

FEA-XXX: [Feature Name]
Type: [Moat | Outcome | Parity | Delta | Tier | Table Stakes]
Priority: [P0 | P1 | P2 | P3]
Description: [What the feature does — user-facing capability]
Outcome Link: [KPI-XXX this supports, or "N/A"]
Moat Link: [BR-XXX moat rule this supports, or "N/A"]
Pricing Link: [BR-XXX tier this belongs to, or "All tiers"]
Competitor Comparison: [Parity with X | Delta vs X | Unique | Table stakes]
Validation: [CFD-XXX evidence, or validation method]
Acceptance Criteria: [Testable condition for "done"]

Example entries:

FEA-001: One-Click Scheduling
Type: Parity
Priority: P0
Description: Schedule meetings with single click from availability view
Outcome Link: KPI-002 (activation rate)
Moat Link: N/A
Pricing Link: All tiers
Competitor Comparison: Parity with Calendly
Validation: CFD-012 (competitor feature audit)
Acceptance Criteria: User completes scheduling in ≤3 clicks

FEA-002: Offline Mode
Type: Delta
Priority: P0
Description: Full functionality without internet connection
Outcome Link: KPI-001 (TTFV for field users)
Moat Link: BR-012 (moat: works anywhere)
Pricing Link: BR-045 (Pro tier differentiator)
Competitor Comparison: Delta vs Notion (requires connection)
Validation: CFD-018 (user interviews: connectivity complaints)
Acceptance Criteria: All core features function with 0 connectivity for 24h

BR-FEA- Governance Rules

Create governance rules for feature decisions:

BR-FEA-XXX: [Rule Name]
Type: [Scope Protection | Prioritization Rule | Validation Gate]
Rule: [Constraint statement]
Rationale: [Why this rule exists]
Enforcement: [When/how applied]

Standard rules to establish:

  • BR-FEA-001: Outcome Link Required — P0/P1 features must link to KPI- entry
  • BR-FEA-002: Validation Before Build — P0 features require CFD- evidence before development
  • BR-FEA-003: Scope Freeze Gate — Feature list locked after v0.4; changes require EPIC

Anti-Patterns to Avoid

Anti-PatternSignalFix
Feature creepP2/P3 > 40% of scopeCut ruthlessly; defer to backlog
Implementation masquerading as feature"Use Redis caching"Reframe as user outcome
Orphaned featuresNo KPI-, BR-, or CFD- linkAdd traceability or cut
Assumption-based priority"Users will love this"Require CFD- evidence
Parity inflationEverything is "parity"Challenge: is competitor feature actually used?
Delta without moatDelta feature easy to copyTie to defensible BR- moat

Downstream Connections

FEA- entries feed into:

ConsumerWhat It UsesExample
v0.4 User JourneysFeatures become journey stepsUJ-001 uses FEA-001, FEA-003
v0.5 Red TeamFeature risk assessment"FEA-002 has technical risk"
v0.7 Build ExecutionEPIC scope definitionEPIC-01 delivers FEA-001–005
v0.9 GTMFeature-based messaging"Launch with FEA-002 (delta)"

Detailed References

  • Good/bad examples: See references/examples.md
  • FEA- entry template: See assets/fea.md
  • Competitive feature matrix: See assets/competitive-feature-matrix.md

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