bacoco/openspec-change-proposal

OpenSpec Propose Skill

When to Invoke

Automatically activate when user:

• Says "Fix this bug", "Small change", "Quick feature"
• Asks "Simple fix for [issue]", "Minor update to [component]"
• Mentions "bug fix", "small improvement", "quick change"
• Has a Level 0-1 scoped change (small, low risk, no major unknowns)
• Uses words like: bug, fix, small, quick, simple, minor, lightweight

Specific trigger phrases:

• "Fix this bug: [description]"
• "Small change to [component]"
• "Quick feature: [simple feature]"
• "Simple fix for [issue]"
• "Minor update: [description]"
• "Lightweight change proposal"

Prerequisites:

• Change is Level 0-1 (small, well-defined)
• No major unknowns or architectural changes
• Existing codebase (not greenfield project)

Do NOT invoke when:

• Complex feature requiring PRD (use BMAD instead)
• Architectural changes needed (use bmad-architecture-design)
• Multiple teams coordination (use BMAD)
• Level 2+ complexity (escalate to BMAD)
• Greenfield project (use BMAD workflow)

Auto-escalate to BMAD when:

• Scope grows beyond Level 1
• Major unknowns emerge
• Requires cross-team coordination

Mission

Capture small change requests or bug fixes and translate them into concise proposals and task outlines without invoking the full BMAD workflow.

Inputs Required

• change_request: description of the existing behavior and desired adjustment
• impact_surface: files, services, or user flows likely affected
• constraints: timeline, risk, or approvals that bound the solution

Outputs

• proposal.md summarizing problem, desired behavior, and acceptance signals (template: assets/proposal-template.md.template)
• tasks.md listing actionable steps sized for rapid implementation (template: assets/tasks-template.md.template)
• specs/spec-delta.md capturing ADDED/MODIFIED/REMOVED requirements (template: assets/spec-delta-template.md.template)
• Optional design.md scaffolded when deeper technical notes are required

scripts/scaffold_change.py creates this structure in openspec/changes/<change-id>/ using the templates above.

Process

1. Validate Level 0-1 scope using CHECKLIST.md.
2. Run scripts/scaffold_change.py <change-id> to create the workspace under openspec/changes/.
3. Clarify current vs. target behavior and record feasibility notes in proposal.md.
4. Draft tasks.md and populate specs/spec-delta.md using the templates in assets/.
5. Highlight dependencies, approvals, and risks, then hand off for review or implementation scheduling.

Quality Gates

Ensure checklist items pass before finalizing. Escalate to BMAD if scope exceeds Level 1 or introduces major unknowns.

Error Handling

• If information is insufficient, ask for missing context (screenshots, logs, reproduction steps).
• When risks are high or ambiguity remains, recommend migrating to BMAD discovery-analysis.