spectra-propose

name	spectra-propose
description	Create a change proposal with all required artifacts
license	MIT
compatibility	Requires openspec CLI.
metadata	{"author":"spectra","version":"1.0","generatedBy":"Spectra"}

Create a complete OpenSpec change proposal — from requirement to validated artifacts — in a single workflow.

Input: The argument after /spectra:propose is the requirement description. Examples:

• /spectra:propose add dark mode
• /spectra:propose fix the login page crash
• /spectra:propose improve search performance

If no argument is provided, the workflow will extract requirements from conversation context or ask.

Prerequisites: This skill requires the spectra CLI. If any spectra command fails with "command not found" or similar, report the error and STOP.

Steps

1. Determine the requirement source

   a. Argument provided (e.g., "add dark mode") → use it as the requirement description, skip to deriving the change name below.

   b. Plan file available (Claude Code only):

   • Check if the conversation context mentions a plan file path (plan mode system messages include the path like ~/.claude/plans/<name>.md)
   • If found, check if the file exists at ~/.claude/plans/
   • If a plan file is found, use the AskUserQuestion tool to ask:
     • Option 1: Use the plan file
     • Option 2: Use conversation context
   • If conversation context has no relevant discussion, mention this when presenting the choice
   • If the user picks the plan file → read it and extract:
     • plan_title (H1 heading) → use as requirement description
     • plan_context (Context section) → use as proposal Why/Motivation content
     • plan_stages (numbered implementation stages) → use for artifact creation
     • plan_files (all file paths mentioned) → use for Impact section
   • If the user picks conversation context → fall through to (c)

   c. Conversation context → attempt to extract requirements from conversation history

   • If context is insufficient, use the AskUserQuestion tool to ask what they want to build

   From the resolved description, derive a kebab-case change name (e.g., "add dark mode" → add-dark-mode).

   IMPORTANT: Do NOT proceed without understanding what the user wants to build.

2. Classify the change type

   Based on the requirement, classify the change into one of three types:

   Type	When to use
   Feature	New functionality, new capabilities
   Bug Fix	Fixing existing behavior, resolving errors
   Refactor	Architecture improvements, performance optimization, UI adjustments

   This determines the proposal template format in step 5.

3. Scan existing specs for relevance

   Before creating the change, check if any existing specs overlap:

   1. Use the Glob tool to list all files matching openspec/specs/*/spec.md
   2. Extract directory names as the spec identifier list
   3. Compare against the user's description to identify related specs (max 5 candidates)
   4. For each candidate (max 3), read the first 10 lines to retrieve the Purpose section
   5. If related specs are found, display them as an informational summary

   IMPORTANT:

   • If related specs are found, display them but do NOT stop or ask for confirmation — continue to the next step
   • If no related specs are found, silently proceed without mentioning the scan

4. Create the change directory

   spectra new change "<name>" --agent claude
   

   If a change with that name already exists, suggest continuing the existing change instead of creating a new one.

5. Write the proposal

   Get instructions:

   spectra instructions proposal --change "<name>" --json
   

   Write the proposal file using the template from instructions, with the following format based on change type:

   Feature

   ## Why
   
   <!-- Why this functionality is needed -->
   
   ## What Changes
   
   <!-- What will be different -->
   
   ## Capabilities
   
   ### New Capabilities
   
   - `<capability-name>`: <brief description>
   
   ### Modified Capabilities
   
   (none)
   
   ## Impact
   
   - Affected specs: <new or modified capabilities>
   - Affected code: <list of affected files>
   

   Bug Fix

   ## Problem
   
   <!-- Current broken behavior -->
   
   ## Root Cause
   
   <!-- Why it happens -->
   
   ## Proposed Solution
   
   <!-- How to fix -->
   
   ## Success Criteria
   
   <!-- Expected behavior after fix, verifiable conditions -->
   
   ## Impact
   
   - Affected code: <list of affected files>
   

   Refactor / Enhancement

   ## Summary
   
   <!-- One sentence description -->
   
   ## Motivation
   
   <!-- Why this is needed -->
   
   ## Proposed Solution
   
   <!-- How to do it -->
   
   ## Alternatives Considered (optional)
   
   <!-- Other approaches considered and why not -->
   
   ## Impact
   
   - Affected specs: <affected capabilities>
   - Affected code: <list of affected files>
   

6. Get the artifact build order

   spectra status --change "<name>" --json
   

   Parse the JSON to get:

   • applyRequires: array of artifact IDs needed before implementation
   • artifacts: list of all artifacts with their status and dependencies

7. Create remaining artifacts in sequence

   Loop through artifacts in dependency order (skip proposal since it's already done):

   a. For each artifact that is ready (dependencies satisfied):

   • Get instructions:

     spectra instructions <artifact-id> --change "<name>" --json
     

   • The instructions JSON includes:
     • context: Project background (constraints for you - do NOT include in output)
     • rules: Artifact-specific rules (constraints for you - do NOT include in output)
     • template: The structure to use for your output file
     • instruction: Schema-specific guidance
     • outputPath: Where to write the artifact
     • dependencies: Completed artifacts to read for context
     • locale: The language to write the artifact in (e.g., "Japanese (日本語)"). If present, you MUST write the artifact content in this language. Exception: spec files (specs/*/.md) MUST always be written in English regardless of locale, because they use normative language (SHALL/MUST).
   • Read any completed dependency files for context
   • Create the artifact file using template as the structure
   • Apply context and rules as constraints - but do NOT copy them into the file
   • Show brief progress: "✓ Created "

   b. Continue until all applyRequires artifacts are complete

   • After creating each artifact, re-run spectra status --change "<name>" --json
   • Check if every artifact ID in applyRequires has status: "done"
   • Stop when all applyRequires artifacts are done

   c. If an artifact requires user input (unclear context):

   • Use AskUserQuestion tool to clarify
   • Then continue with creation

8. Analyze-Fix Loop (max 2 iterations)

   1. Run spectra analyze <change-name> --json
   2. Filter findings to Critical and Warning only (ignore Suggestion)
   3. If no Critical/Warning findings → show "Artifacts look consistent ✓" and proceed
   4. If Critical/Warning findings exist: a. Show: "Found N issue(s), fixing... (attempt M/2)" b. Fix each finding in the affected artifact c. Re-run spectra analyze <change-name> --json d. Repeat up to 2 total iterations
   5. After 2 attempts, if findings remain:
      • Show remaining findings as a summary
      • Proceed normally (do NOT block)

9. Validation

   spectra validate "<name>"
   

   If validation fails, fix errors and re-validate.

10. Show final status and end workflow

    Show summary:

    • Change name and location
    • List of artifacts created
    • Validation result

    Use AskUserQuestion tool to confirm the workflow is complete. This ensures the workflow stops even when auto-accept is enabled. Provide exactly these options:

    • First option (will be auto-selected): "Done" — End the propose workflow. Inform the user they can run /spectra:apply <change-name> when ready.
    • Second option: "Apply" — Invoke /spectra:apply <change-name> to start implementation.

    If AskUserQuestion tool is not available, display the summary and inform the user to run /spectra:apply <change-name> when ready. Then STOP — do not continue.

    After the user responds, if they chose "Done", the workflow is OVER. If they chose "Apply", invoke /spectra:apply <change-name> to begin implementation.

Artifact Creation Guidelines

• Follow the instruction field from spectra instructions for each artifact type
• Read dependency artifacts for context before creating new ones
• Use template as the structure for your output file - fill in its sections
• IMPORTANT: context and rules are constraints for YOU, not content for the file
  • Do NOT copy <context>, <rules>, <project_context> blocks into the artifact
  • These guide what you write, but should never appear in the output
• Parallel task markers ([P]): When creating the tasks artifact, first read openspec/config.yaml. If parallel_tasks: true is set, add [P] markers to tasks that can be executed in parallel. Format: - [ ] [P] Task description. A task qualifies for [P] if it targets different files from other pending tasks AND has no dependency on incomplete tasks in the same group. When parallel_tasks is not enabled, do NOT add [P] markers.

Guardrails

• Create ALL artifacts needed for implementation
• Always read dependency artifacts before creating a new one
• If context is critically unclear, ask the user - but prefer making reasonable decisions to keep momentum
• If a change with that name already exists, suggest continuing that change instead
• Verify each artifact file exists after writing before proceeding to next
• NEVER write application code or implement features during this workflow
• NEVER skip the artifact workflow to write code directly
• NEVER reinterpret requirements by ignoring the proposal file
• NEVER invoke /spectra:apply — this workflow ends after artifact creation. The user decides when to start implementation
• If AskUserQuestion tool is not available, ask the same questions as plain text and wait for the user's response