How to use
- Copy the installation command and review the source package before installing it in your own agent environment.
- Check the source document for required tools, credentials and supported hosts.
- Describe your input and desired deliverable; review the output against the source material.
npx skills add https://github.com/majesticlabs-dev/majestic-marketplace --skill plan-builderBefore you start
- Installation does not include a model subscription, API allowance or permission to access your files.
- Repository stars and installation counts describe activity, not an independent quality or security test.
Rendered from the source repository. Headings, examples, code, tables, links, and referenced images are preserved.
Plan Builder
Write implementation plans using the appropriate template based on complexity.
Template Selection
| Complexity | When to Use | Template |
|---|---|---|
| Minimal | Simple bugs, small improvements, clear single-file changes | references/minimal.md |
| Standard | Most features, complex bugs, team collaboration | references/standard.md |
| Comprehensive | Major features, architectural changes, multi-phase work | references/comprehensive.md |
Selection Criteria
Use Minimal When
- Fix is obvious and localized
- Single file or 2-3 related files
- No architectural decisions needed
- Clear acceptance criteria from description
Use Standard When (Default)
- Multiple components affected
- Requires research or external docs
- Team needs context for review
- Has dependencies or risks
Use Comprehensive When
- New system or major feature
- Multiple phases of work
- Architectural decisions required
- Cross-cutting concerns (security, performance)
- Involves multiple teams or stakeholders
Plan Output
Write plans to: docs/plans/[YYYYMMDDHHMMSS]_<title>.md
Include in every plan:
- Research findings with file paths (e.g.,
src/models/user.rb:42) - External documentation URLs
- Related issues/PRs if known
- Acceptance Criteria from user input (populated from blueprint Step 2)
Conditional Sections
UI Features
Include "Design System Reference" section when feature involves:
- Pages, components, forms, buttons, modals
- Visual design elements
DevOps Features
Include "Infrastructure Context" section when feature involves:
- Terraform/OpenTofu, Ansible, cloud resources
- Docker, CI/CD, infrastructure
Anti-Patterns
| Don't | Do |
|---|---|
| Use comprehensive for simple bugs | Match template to actual complexity |
| Skip Acceptance Criteria | Always include testable criteria |
| Leave placeholder text | Fill all sections or remove them |
| Over-plan obvious changes | Minimal template exists for a reason |



