speckit-specify

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Create or update a feature specification from a natural language description.

fstandhartinger By fstandhartinger schedule Updated 4/26/2026

name: speckit-specify description: Create or update a feature specification from a natural language description.

User Input

$ARGUMENTS

You MUST consider the user input before proceeding (if not empty).

Outline

The text after /speckit.specify is the feature description. Do not ask the user to repeat it unless it is empty.

Given that description, do this:

  1. Generate a concise short name (2-4 words) for the spec folder:

    • Extract the most meaningful keywords
    • Use action-noun format when possible (e.g., "user-auth", "billing-dashboard")
    • Preserve technical terms and acronyms (OAuth2, JWT, API)
  2. Determine the next spec number (NO BRANCH CREATION):

    a. List existing spec directories:

    ls -d specs/[0-9]*/ 2>/dev/null | sort -t/ -k2 -n
    

    b. Find the highest number N and use N+1 (zero-padded to 3 digits)

    c. Create the spec directory structure:

    mkdir -p specs/NNN-short-name/checklists
    

    d. Set SPEC_FILE = specs/NNN-short-name/spec.md

  3. Load templates/spec-template.md to understand required sections.

  4. Write the spec using the template structure, replacing placeholders with concrete details derived from the feature description while preserving section order and headings.

  5. Completion Signal: Ensure the spec includes a ## Completion Signal section with:

    • Implementation checklist
    • Testing requirements
    • Iteration instructions
    • Completion promise (<promise>DONE</promise>)
  6. Create a quality checklist at specs/NNN-short-name/checklists/requirements.md using templates/checklist-template.md.

  7. If anything is ambiguous, add up to 3 [NEEDS CLARIFICATION: ...] markers in the spec. For each marker, present a clear question and suggested answers.

Output

Return: SUCCESS (spec ready for implementation via Ralph Wiggum)

Install via CLI
npx skills add https://github.com/fstandhartinger/janus-poc --skill speckit-specify
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