Duo gen plan

Generate a structured implementation plan from a draft document. Validates input, checks relevance, analyzes for issues, and generates a complete plan.md with acceptance criteria.From its SKILL.md

Install

npx -y skills add haonan16/duo --skill duo-gen-plan

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One thing to look at

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SKILL.md

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Duo Generate Plan

Transforms a rough draft document into a well-structured implementation plan with clear goals, acceptance criteria (AC-X format), path boundaries, and feasibility suggestions.

The installer hydrates this skill with an absolute runtime root path:

{{DUO_RUNTIME_ROOT}}

flowchart TD
    BEGIN([BEGIN]) --> SEED[Seed output file<br/>Write template + draft content<br/>with Original Design Draft markers]
    SEED --> READ_DRAFT[Read input draft file]
    READ_DRAFT --> CHECK_RELEVANCE{Is draft relevant to<br/>this repository?}
    CHECK_RELEVANCE -->|No| REPORT_IRRELEVANT[Report: Draft not related to repo<br/>Stop]
    REPORT_IRRELEVANT --> END_FAIL
    CHECK_RELEVANCE -->|Yes| ANALYZE[Analyze draft for:<br/>- Clarity<br/>- Consistency<br/>- Completeness<br/>- Functionality]
    ANALYZE --> HAS_ISSUES{Issues found?}
    HAS_ISSUES -->|Yes| RESOLVE[Engage user to resolve issues<br/>via AskUserQuestion]
    RESOLVE --> ANALYZE
    HAS_ISSUES -->|No| CHECK_METRICS{Has quantitative<br/>metrics?}
    CHECK_METRICS -->|Yes| CONFIRM_METRICS[Confirm metrics with user:<br/>Hard requirement or trend?]
    CONFIRM_METRICS --> GEN_PLAN
    CHECK_METRICS -->|No| GEN_PLAN[Generate structured plan:<br/>- Goal Description<br/>- Acceptance Criteria with TDD tests<br/>- Path Boundaries<br/>- Feasibility Hints<br/>- Dependencies & Milestones]
    GEN_PLAN --> WRITE[Write plan to output file<br/>using Edit tool to preserve draft]
    WRITE --> REVIEW[Review complete plan<br/>Check for inconsistencies]
    REVIEW --> INCONSISTENT{Inconsistencies?}
    INCONSISTENT -->|Yes| FIX[Fix inconsistencies]
    FIX --> REVIEW
    INCONSISTENT -->|No| CHECK_LANG{Multiple languages?}
    CHECK_LANG -->|Yes| UNIFY[Ask user to unify language]
    UNIFY --> REPORT_SUCCESS
    CHECK_LANG -->|No| REPORT_SUCCESS[Report success:<br/>- Plan path<br/>- AC count<br/>- Language unified?]
    REPORT_SUCCESS --> END_SUCCESS([END])

Input Requirements

Required Arguments:

<input> - The draft document path
<output> - Where to write the plan (must not already exist)

Plan Structure Output

The generated plan includes:

# Plan Title

## Goal Description
Clear description of what needs to be accomplished

## Acceptance Criteria

- AC-1: First criterion
  - Positive Tests (expected to PASS):
    - Test case that should succeed
  - Negative Tests (expected to FAIL):
    - Test case that should fail

## Path Boundaries

### Upper Bound (Maximum Scope)
Most comprehensive acceptable implementation

### Lower Bound (Minimum Scope)  
Minimum viable implementation

### Allowed Choices
- Can use: allowed technologies
- Cannot use: prohibited technologies

## Dependencies and Sequence

### Milestones
1. Milestone 1: Description
   - Phase A: ...
   - Phase B: ...

## Implementation Notes
- Code should NOT contain plan terminology

Usage

Plan generation is now part of /duo:start:

# Generate plan with Codex refinement (default)
/duo:start draft.md --plan-only

# Generate plan without Codex refinement
/duo:start draft.md --plan-only --skip-review

# Generate plan with custom refinement settings
/duo:start draft.md --plan-only --max 3 --codex-model o4-mini:high

Or use the skill directly (no auto-execution):

/skill:duo-gen-plan