Story Prioritizer Skill

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Story Prioritizer

Type: L3 Worker Category: 2XX Planning

Evaluate Stories using RICE scoring with market research. Generate consolidated prioritization table for Epic.

Purpose & Scope

Prioritize Stories AFTER ln-220 creates them
Triage all Stories cheaply before doing deep research
Research market size and competition only where it changes prioritization confidence
Calculate RICE score for each Story
Generate prioritization table (P0/P1/P2/P3)
Output: docs/market/[epic-slug]/prioritization.md

When to Use

Use this skill when:

Stories created by ln-220, need business prioritization
Planning sprint with limited capacity (which Stories first?)
Stakeholder review requires data-driven priorities
Evaluating feature ROI before implementation

Do NOT use when:

Epic has no Stories yet (run ln-220 first)
Stories are purely technical (infrastructure, refactoring)
Prioritization already exists in docs/market/

Input Parameters

| Parameter | Required | Description | Default | |-----------|----------|-------------|---------| | epic | Yes | Epic ID or "Epic N" format | - | | stories | No | Specific Story IDs to prioritize | All in Epic | | depth | No | Research depth (quick/standard/deep) | "standard" |

depth options:

quick - 2-3 min/Story, 1 WebSearch per type
standard - 5-7 min/Story, 2-3 WebSearches per type
deep - 8-10 min/Story, comprehensive research

Output Structure

docs/market/[epic-slug]/
└── prioritization.md    # Consolidated table + RICE details + sources

Runtime Contract

MANDATORY READ: Load shared/references/planning_worker_runtime_contract.md, shared/references/coordinator_summary_contract.md

Runtime family: planning-worker-runtime

Identifier:

epic-{epicId}

Phases:

PHASE_0_CONFIG
PHASE_1_DISCOVERY
PHASE_2_LOAD_STORY_METADATA
PHASE_3_ANALYZE_STORIES
PHASE_4_GENERATE_PRIORITIZATION
PHASE_5_WRITE_SUMMARY
PHASE_6_SELF_CHECK

Summary contract:

summary_kind=story-prioritization-worker
payload includes epic_id, depth, stories_analyzed, priority_distribution, top_story_ids, prioritization_path, warnings
managed mode writes to caller-provided summaryArtifactPath
default managed artifact path pattern: .hex-skills/runtime-artifacts/runs/{parent_run_id}/story-prioritization-worker/ln-230--{identifier}.json

Table columns (from user requirements):

| Priority | Customer Problem | Feature | Solution | Rationale | Impact | Market | Sources | Competition | |----------|------------------|---------|----------|-----------|--------|--------|---------|-------------| | P0 | User pain point | Story title | Technical approach | Why important | Business impact | $XB | [Link] | Blue 1-3 / Red 4-5 |

Inputs

| Input | Required | Source | Description | |-------|----------|--------|-------------| | epicId | Yes | args, kanban, user | Epic to process |

Resolution: Epic Resolution Chain. Status filter: Active (planned/started)

Tools Config

MANDATORY READ: Load shared/references/environment_state_contract.md, shared/references/storage_mode_detection.md, shared/references/input_resolution_pattern.md

Extract: task_provider = Task Management → Provider

Research Tools

| Tool | Purpose | Example Query | |------|---------|---------------| | WebSearch | Market size, competitors | "[domain] market size {current_year}" | | mcp__Ref | Industry reports | "[domain] market analysis report" | | Task provider | Load Stories | IF linear: list_issues / ELSE: Glob story.md | | Glob | Check existing | "docs/market/[epic]/*" |

Workflow

Phase 1: Discovery (2 min)

Objective: Validate input and prepare context.

Process:

Resolve epicId: Run Epic Resolution Chain per guide.
Load Epic details:
- IF task_provider == "linear": get_project(query=epicId)
- ELSE IF task_provider == "github": gh issue view {epicId} -R {REPO} --json number,title,body
- ELSE: Read("docs/tasks/epics/epic-{N}-*/epic.md")
- Extract: Epic ID, title, description
Auto-discover configuration:
- Read docs/tasks/kanban_board.md for Team ID
- Slugify Epic title for output path
Check existing prioritization:
```
Glob: docs/market/[epic-slug]/prioritization.md
```
- If exists: Ask "Update existing or create new?"
- If new: Continue
Create output directory:
```
mkdir -p docs/market/[epic-slug]/
```

Output: Epic metadata, output path, existing check result

Phase 2: Load Stories Metadata (3 min)

Objective: Build Story queue with metadata only and prepare rough scoring inputs for all Stories.

Process:

Query Stories from Epic: IF task_provider == "linear":

list_issues(project=Epic.id, label="user-story")

ELSE IF task_provider == "github":

gh api /repos/{O}/{R}/issues/{epic_num}/sub_issues --jq '.[].number'
→ for each: gh issue view {num} -R {REPO} --json number,title,state,labels
→ filter: label "user-story"

ELSE (file mode):

Glob("docs/tasks/epics/epic-{N}-*/stories/*/story.md")

Extract metadata only:
- Story ID, title, status
- minimal Epic context if available
- DO NOT load full descriptions yet
Filter Stories:
- Exclude: Done, Cancelled, Archived
- Include: Backlog, Todo, In Progress
Build processing queue:
- Order by: existing priority (if any), then by ID
- Count: N Stories to process

Output: Story queue (ID + title + minimal context), ~50-80 tokens/Story

Phase 3: Two-Pass Story Analysis

Objective: Score all Stories cheaply first, then spend deep research only on candidates where it changes the decision.

Critical: Keep maximum context to one full Story at a time even during deep research.

Pass A: Cheap Triage For All Stories

For each Story, load only enough detail to estimate:

customer problem
rough solution shape
likely reach
likely impact
likely effort
initial confidence tier

Step 3.1: Load Story Description

IF task_provider == "linear":

get_issue(id=storyId, includeRelations=false)

ELSE IF task_provider == "github":

gh issue view {storyId} -R {REPO} --json number,title,body,state,labels

ELSE (file mode):

Read("docs/tasks/epics/epic-{N}-*/stories/us{NNN}-*/story.md")

Extract from Story:

Feature: Story title
Customer Problem: From "So that [value]" + Context section
Solution: From Technical Notes (implementation approach)
Rationale: From AC + Success Criteria

Step 3.2: Build rough RICE estimate

Use Story + Epic context to assign:

rough Reach
rough Impact
rough Effort
initial Confidence

Mark one of:

full_research_required
rough_estimate_ok
borderline_needs_review

Send to Pass B only if:

candidate looks P0/P1 on rough score
confidence is low
Story is near a priority threshold
Story has strategic or market-sensitive uncertainty

Pass B: Selective Deep Research

Only for Stories selected in Pass A, run full external research.

Step 3.3: Research Market Size

WebSearch queries (based on depth):

"[customer problem domain] market size TAM {current_year}"
"[feature type] industry market forecast"

mcp__Ref query:

"[domain] market analysis Gartner Statista"

Extract:

Market size: $XB (with unit: B=Billion, M=Million)
Growth rate: X% CAGR
Sources: URL + date

Confidence mapping:

Industry report (Gartner, Statista) → Confidence 0.9-1.0
News article → Confidence 0.7-0.8
Blog/Forum → Confidence 0.5-0.6

Step 3.4: Research Competition

WebSearch queries:

"[feature] competitors alternatives {current_year}"
"[solution approach] market leaders"

Count competitors and classify:

| Competitors Found | Competition Index | Ocean Type | |-------------------|-------------------|------------| | 0 | 1 | Blue Ocean | | 1-2 | 2 | Emerging | | 3-5 | 3 | Growing | | 6-10 | 4 | Mature | | >10 | 5 | Red Ocean |

Step 3.5: Calculate final RICE Score

RICE = (Reach x Impact x Confidence) / Effort

Reach (1-10): Users affected per quarter | Score | Users | Indicators | |-------|-------|------------| | 1-2 | <500 | Niche, single persona | | 3-4 | 500-2K | Department-level | | 5-6 | 2K-5K | Organization-wide | | 7-8 | 5K-10K | Multi-org | | 9-10 | >10K | Platform-wide |

Impact (0.25-3.0): Business value | Score | Level | Indicators | |-------|-------|------------| | 0.25 | Minimal | Nice-to-have | | 0.5 | Low | QoL improvement | | 1.0 | Medium | Efficiency gain | | 2.0 | High | Revenue driver | | 3.0 | Massive | Strategic differentiator |

Confidence (0.5-1.0): Data quality (from Step 3.2)

Data Confidence Assessment:

For each RICE factor, assess data confidence level:

| Confidence | Criteria | Score Modifier | |------------|----------|----------------| | HIGH | Multiple authoritative sources (Gartner, Statista, SEC filings) | Factor used as-is | | MEDIUM | 1-2 sources, mixed quality (blog + report) | Factor ±25% range shown | | LOW | No sources, team estimate only | Factor ±50% range shown |

Output: Show confidence per factor in prioritization table + RICE range (optimistic/pessimistic) to make uncertainty explicit.

Effort (1-10): Person-months | Score | Time | Story Indicators | |-------|------|------------------| | 1-2 | <2 weeks | 3 AC, simple CRUD | | 3-4 | 2-4 weeks | 4 AC, integration | | 5-6 | 1-2 months | 5 AC, complex logic | | 7-8 | 2-3 months | External dependencies | | 9-10 | 3+ months | New infrastructure |

Step 3.6: Determine Priority

| Priority | RICE Threshold | Competition Override | |----------|----------------|---------------------| | P0 (Critical) | >= 30 | OR Competition = 1 (Blue Ocean monopoly) | | P1 (High) | >= 15 | OR Competition <= 2 (Emerging market) | | P2 (Medium) | >= 5 | - | | P3 (Low) | < 5 | Competition = 5 (Red Ocean) forces P3 |

Step 3.7: Store and Clear

Append row to in-memory results table
Mark whether row is full-research or rough-estimate
Clear Story description from context
Move to next Story in queue

Output per Story: Complete row for prioritization table with confidence tier

Phase 4: Generate Prioritization Table (5 min)

Objective: Create consolidated markdown output.

Process:

Sort results:
- Primary: Priority (P0 → P3)
- Secondary: RICE score (descending)
Generate markdown:
- Use template from references/prioritization_template.md
- Fill: Priority Summary, Main Table, RICE Details, Sources
- Explicitly show whether each Story used full research or rough estimate

Save file:

Write: docs/market/[epic-slug]/prioritization.md

Output: Saved prioritization.md

Phase 5: Summary & Next Steps (1 min)

Objective: Display results and recommendations.

Output format:

## Prioritization Complete

**Epic:** [Epic N - Name]
**Stories analyzed:** X
**Time elapsed:** Y minutes

### Priority Distribution:
- P0 (Critical): X Stories - Implement ASAP
- P1 (High): X Stories - Next sprint
- P2 (Medium): X Stories - Backlog
- P3 (Low): X Stories - Consider deferring

### Top 3 Priorities:
1. [Story Title] - RICE: X, Market: $XB, Competition: Blue/Red

### Saved to:
docs/market/[epic-slug]/prioritization.md

### Next Steps:
1. Review table with stakeholders
2. Run ln-300 for P0/P1 Stories first
3. Consider cutting P3 Stories

Time-Box Constraints

| Depth | Per-Story | Total (10 Stories) | |-------|-----------|-------------------| | quick | 2-3 min | 20-30 min | | standard | 5-7 min | 50-70 min | | deep | 8-10 min | 80-100 min |

Time management rules:

If Story exceeds time budget: keep rough estimate, mark lower confidence
If total exceeds budget: reserve deep research only for high-potential or borderline Stories
Parallel WebSearch where possible (market + competition)

Token Efficiency

Loading pattern:

Phase 2: Metadata only (~50 tokens/Story)
Phase 3: Full description ONE BY ONE (~3,000-5,000 tokens/Story)
After each Story: Clear description, keep only result row (~100 tokens)

Memory management:

Sequential processing (not parallel)
Maximum context: 1 Story description at a time
Results accumulate as compact table rows

Integration with Ecosystem

Position in workflow:

ln-210 (Scope → Epics)
     ↓
ln-220 (Epic → Stories)
     ↓
ln-230 (RICE per Story → prioritization table) ← THIS SKILL
     ↓
ln-300 (Story → Tasks)

Dependencies:

WebSearch, mcp__Ref (market research)
Task provider: Linear MCP or file mode (load Epic, Stories)
Glob, Write, Bash (file operations)

Downstream usage:

Sprint planning uses P0/P1 to select Stories
ln-300 processes Stories in priority order
Stakeholders review before implementation

Structured worker output:

return the prioritization summary envelope even in standalone mode
write the same JSON artifact when summaryArtifactPath is provided

Critical Rules

Triage first - do cheap scoring across all Stories before deep research
Source all deep-research data - every Market number needs source + date
Prefer recent data - last 2 years, warn if older
Cross-reference when depth justifies it - use 2+ sources for market-sensitive Stories
Time-box strictly - keep rough estimates when deeper research will not change the decision
Confidence levels - mark High/Medium/Low and whether score is rough or full-research
No speculation - only sourced claims, note "[No data]" gaps
One Story at a time - token efficiency critical
Preserve language - if user asks in Russian, respond in Russian

Definition of Done

[ ] Epic validated (Linear or file mode)
[ ] All Stories loaded through metadata-first queue
[ ] Pass A rough triage completed for all Stories
[ ] Deep research limited to high-potential or low-confidence Stories
[ ] RICE score calculated for each Story
[ ] Competition index assigned (1-5)
[ ] Priority assigned (P0/P1/P2/P3)
[ ] Confidence tier and research depth visible in output
[ ] Table sorted by Priority + RICE
[ ] File saved to docs/market/[epic-slug]/prioritization.md
[ ] Summary with top priorities and next steps
[ ] Structured story-prioritization-worker summary returned
[ ] Summary artifact written when summaryArtifactPath is provided
[ ] Total time within budget

Example Usage

Basic usage:

ln-230-story-prioritizer epic="Epic 7"

With parameters:

ln-230-story-prioritizer epic="Epic 7: Translation API" depth="deep"

Specific Stories:

ln-230-story-prioritizer epic="Epic 7" stories="US001,US002,US003"

Example output (docs/market/translation-api/prioritization.md):

| Priority | Customer Problem | Feature | Solution | Rationale | Impact | Market | Sources | Competition | |----------|------------------|---------|----------|-----------|--------|--------|---------|-------------| | P0 | "Repeat translations cost GPU" | Translation Memory | Redis cache, 5ms lookup | 70-90% GPU cost reduction | High | $2B+ | M&M | 3 | | P0 | "Can't translate PDF" | PDF Support | PDF parsing + layout | Enterprise blocker | High | $10B+ | Eden | 5 | | P1 | "Need video subtitles" | SRT/VTT Support | Timing preservation | Blue Ocean opportunity | Medium | $5.7B | GMI | 2 |

Phase 6: Meta-Analysis

MANDATORY READ: Load shared/references/meta_analysis_protocol.md

Skill type: planning-worker. Run after all phases complete. Output to chat using the planning-worker format.

Reference Files

MANDATORY READ: Load shared/references/environment_state_contract.md
MANDATORY READ: Load shared/references/storage_mode_detection.md
MANDATORY READ: Load shared/references/research_tool_fallback.md

| File | Purpose | |------|---------| | prioritization_template.md | Output markdown template | | rice_scoring_guide.md | RICE factor scales and examples | | research_queries.md | WebSearch query templates by domain | | competition_index.md | Blue/Red Ocean classification rules |

Version: 2.0.0 Last Updated: 2026-04-05

Agent Skills: Story Prioritizer

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