When to Use

Use this skill when you need to rank requirements for a release.

When Not to Use

Do not use this skill for task-level estimation, bug triage, or sprint capacity planning by itself.

Principles

1. Must means release failure if missing.
2. Should means high value but deferrable.
3. Could means optional enhancement.
4. Won't means explicitly out of scope for this release.

Deterministic Workflow

1. Collect candidate requirements in one list.
2. Confirm release constraints (date, budget, team).
3. Categorize each item with the decision tree in references/categorization-decision-tree.md.
4. Challenge every Must using failure-focused questions.
5. Validate: Verify that the Must count does not exceed 60% of total effort before proceeding.
6. Rebalance if Must work exceeds 60% of effort. If rebalancing cannot bring Must under 60%, escalate to stakeholders to either re-scope the release (split into two releases, extend the timeline, or increase capacity) before finalizing categories.
7. Publish final table with owners and review date.

Quick Commands

Create a workshop draft

cp skills/moscow-prioritization/references/facilitator-workshop-template.md .context/moscow-workshop-draft.md

Expected result: reusable working document for prioritization.

Create a decision log

cat > .context/moscow-decisions-$(date +%Y-%m-%d).md <<'MD'
# MoSCoW Decision Log

| Requirement | Category | Rationale | Owner |
| --- | --- | --- | --- |
MD

Expected result: traceable decisions with ownership.

Validate skill quality after edits

pantheon-skill-auditor evaluate moscow-prioritization --json

Expected result: updated score and grade for this skill.

Lint this skill documentation

rumdl check skills/moscow-prioritization

Expected result: no rumdl errors.

Anti-Patterns

NEVER label stakeholder preference as Must

• WHY: Preference is not the same as release-critical need.
• BAD: “Executive asked for dark mode, so it is Must.”
• GOOD: “Dark mode is Should unless release fails without it.”
• Consequence: Must list inflates and blocks true essentials.

NEVER skip explicit Won't items

• WHY: Missing exclusions invite silent scope creep.
• BAD: Keep backlog open-ended with no rejected items.
• GOOD: Record rejected items with revisit date.
• Consequence: Team repeatedly reopens settled decisions.

NEVER finalize priorities without constraint checks

• WHY: Categories are invalid without timeline and capacity context.
• BAD: Categorize before confirming release limits.
• GOOD: Validate date, staffing, and budget first.
• Consequence: Plans collapse during execution.

NEVER keep categories without rationale

• WHY: Unjustified categories cannot be defended or audited.
• BAD: Spreadsheet with only item and category.
• GOOD: Include business outcome and risk rationale.
• Consequence: Priorities are re-litigated in every review.

References

• references/categorization-decision-tree.md
• references/facilitator-workshop-template.md
• references/effort-balancing-and-tradeoffs.md