Plugin Create Skill
Interactive wizard for creating well-structured Claude Code marketplace components following architecture best practices.
What This Skill Provides
Component Creation: Unified workflows for creating agents, commands, skills, and bundles with proper structure, frontmatter, and standards compliance.
Validation: Automated validation of component structure, frontmatter format, and architecture compliance.
Templates: Consistent templates for all component types with proper sections and formatting.
Duplication Detection: Prevents creating duplicate components by checking existing components in target bundle.
Pattern Type
Pattern 5 + Pattern 6: Wizard-Style Workflow + Template-Based Generation
- •Pattern 5: Interactive questionnaires with validation
- •Pattern 6: Fill templates with user answers and generate files
When to Use This Skill
Activate when creating:
- •New agents - Focused task executors
- •New commands - User-facing utilities and orchestrators
- •New skills - Standards and knowledge repositories
- •New bundles - Component collections with plugin.json
Workflows
This skill provides 4 workflows, one for each component type. All workflows follow the same pattern:
- •Interactive questionnaire with validation
- •Duplication detection
- •Generate component from template
- •Validate generated component
- •Display summary with statistics
- •Run post-creation diagnosis
Workflow 1: create-agent
Parameters:
- •
scope- Where to create (marketplace/global/project, default: marketplace) - •
bundle- Target bundle (optional, will prompt if not provided)
Steps:
Step 0: Load Foundation Skills
Skill: pm-plugin-development:plugin-architecture Skill: plan-marshall:ref-development-standards
These provide architecture principles and non-prompting tool usage patterns.
Step 1: Load Architecture Standards
Read references/agent-guide.md
This provides agent design principles, tool selection guidelines, and architecture rules.
Step 2: Interactive Questionnaire
Ask user for:
A. Agent name (kebab-case validation)
- •Validation: Must match kebab-case pattern
- •Error if invalid: "Agent name must be kebab-case (lowercase-with-hyphens)" and retry
B. Bundle selection
- •List available bundles using Glob
- •Validation: Must select valid bundle from list
- •Error if invalid: "Please select a bundle from the list" and retry
C. Description (one sentence, <100 chars)
- •Validation: Must not be empty, ≤100 chars
- •Error if invalid: "Description required (max 100 chars): {current_length}/100" and retry
D. Agent type
- •Analysis agent (code review, diagnostics)
- •Execution agent (build, test, deploy)
- •Coordination agent (multi-step workflows)
- •Research agent (information gathering)
- •Validation: Must select 1-4
- •Error if invalid: "Please select agent type (1-4)" and retry
E. Detailed capabilities (what agent does)
- •Validation: Must not be empty
- •Error if empty: "Agent capabilities description required" and retry
F. Required tools (which tools agent needs)
- •Examples: Read, Write, Edit, Glob, Grep, Bash, WebFetch
- •Validation: Must list at least one tool
- •Error if none: "At least one tool required" and retry
- •CRITICAL Validation - Task Tool:
- •If user lists
Task: ERROR - •Message: "Agents CANNOT use Task tool (Rule 6) - unavailable at runtime. Create a COMMAND instead if delegation needed."
- •Force removal from list or abort
- •If user lists
- •CRITICAL Validation - Maven Execution:
- •If user lists
BashAND agent name ≠ "maven-builder": - •Prompt: "Does this agent need to execute Maven commands?"
- •If yes: ERROR "Only maven-builder agent may execute Maven (Rule 7)"
- •If no: Continue
- •If user lists
G. When should agent be used (trigger conditions)
- •Validation: Must provide use cases
- •Error if empty: "Usage conditions required" and retry
H. Expected inputs/outputs
- •Validation: Must describe inputs and outputs
- •Error if empty: "Input/output description required" and retry
Track questions_answered counter.
Step 3: Duplication Detection and Architecture Validation
Check for duplicates:
- •Use Glob to find all agents in target bundle
- •Use Grep to search for similar names/descriptions
- •If duplicates found:
- •Display: "⚠️ Similar agents found: {list with descriptions}"
- •Prompt: "[C]ontinue anyway/[R]ename agent/[A]bort creation?"
- •If rename: Return to Step 2A
- •If abort: Exit workflow
- •Track in
duplication_checkscounter
Validate architecture compliance:
- •Self-contained (no cross-agent dependencies)
- •Proper tool fit (agent needs listed tools)
- •No prohibited tools (Task, Maven for non-maven-builder)
Track validations_performed counter.
Step 4: Generate Agent File
Generate frontmatter:
python3 .plan/execute-script.py pm-plugin-development:plugin-create:component generate --type "agent" --config "{answers_json}"
Where answers_json contains:
{
"name": "agent-name",
"description": "One sentence description",
"model": "optional_model_name",
"tools": ["Tool1", "Tool2", "Tool3"]
}
Load template:
Read assets/templates/agent-template.md
Fill template with:
- •Generated frontmatter
- •Agent name (title case for heading)
- •Purpose statement from capabilities
- •Workflow steps (numbered, based on agent type)
- •Tool usage guidance
- •Critical rules (based on selected tools)
- •CONTINUOUS IMPROVEMENT RULE with 3-5 improvement areas specific to agent type
CRITICAL - CONTINUOUS IMPROVEMENT RULE Pattern: Agent template MUST use pattern:
## CONTINUOUS IMPROVEMENT RULE
If you discover issues or improvements during execution, record them:
1. **Activate skill**: `Skill: plan-marshall:manage-lessons`
2. **Record lesson** with:
- Component: `{type: "agent", name: "{agent-name}", bundle: "{bundle}"}`
- Category: bug | improvement | pattern | anti-pattern
- Summary and detail of the finding
Write file:
Write: {bundle}/agents/{agent-name}.md
Track files_created counter.
Step 5: Validate Generated Component
python3 .plan/execute-script.py pm-plugin-development:plugin-create:component validate --file "{file_path}" --type "agent"
Validation checks:
- •Frontmatter format correct (comma-separated tools)
- •No Task tool present
- •CONTINUOUS IMPROVEMENT RULE uses manage-lessons skill pattern
- •All required sections present
If validation fails: Display errors and prompt "[R]etry generation/[A]bort"
Track validations_performed counter.
Step 6: Display Summary
╔════════════════════════════════════════════════════════════╗
║ Agent Created Successfully ║
╚════════════════════════════════════════════════════════════╝
Agent: {agent-name}
Location: {file-path}
Bundle: {bundle-name}
Type: {agent-type}
Statistics:
- Questions answered: {questions_answered}
- Validations performed: {validations_performed}
- Duplication checks: {duplication_checks}
- Files created: {files_created}
Next steps:
1. Review agent file: {file-path}
2. Run diagnosis: /plugin-doctor agents agent-name={agent-name}
3. Test agent functionality
Step 7: Run Agent Diagnosis
SlashCommand: /pm-plugin-development:plugin-doctor agents agent-name={agent-name}
If diagnosis fails: Display warning but don't abort (agent already created).
Workflow 2: create-command
Parameters:
- •
scope- Where to create (marketplace/global/project, default: marketplace) - •
bundle- Target bundle (optional, will prompt if not provided)
Steps:
Step 0: Load Foundation Skills
Skill: pm-plugin-development:plugin-architecture Skill: plan-marshall:ref-development-standards
These provide architecture principles and non-prompting tool usage patterns.
Step 1: Load Command Standards
Read references/command-guide.md
This provides command design principles, quality standards, and orchestration patterns.
Step 2: Interactive Questionnaire
Ask user for:
A. Command name (kebab-case with verb)
- •Validation: Must match kebab-case pattern, should start with verb
- •Error if invalid: "Command name must be kebab-case starting with verb (e.g., create-agent)" and retry
B. Bundle selection (same as agent workflow)
C. Description (one sentence, <100 chars)
D. Command type
- •Orchestration (coordinates agents/commands)
- •Diagnostic (analyzes and reports)
- •Interactive (user questionnaire)
- •Automation (executes workflow)
- •Validation: Must select 1-4
E. Parameters (what parameters command accepts)
- •Can be empty for commands with no parameters
- •Prompt: "List parameters (comma-separated) or press Enter if none"
F. Workflow steps (main steps command performs)
- •Validation: Must provide at least 2 steps
- •Error if <2: "Command requires at least 2 workflow steps" and retry
G. Tool requirements (which tools needed)
- •Validation: Must list at least one tool OR "none" for orchestration-only
- •Error if empty: "Specify tools needed or 'none' for orchestration-only" and retry
Track questions_answered counter.
Step 3: Duplication Detection
Same pattern as agent workflow, using Glob/Grep to find similar commands.
Step 4: Generate Command File
Generate frontmatter:
python3 .plan/execute-script.py pm-plugin-development:plugin-create:component generate --type "command" --config "{answers_json}"
Load template:
Read assets/templates/command-template.md
Fill template with:
- •Generated frontmatter (name, description only - no tools)
- •Command overview
- •CONTINUOUS IMPROVEMENT RULE with command-specific improvements
- •PARAMETERS section (if applicable)
- •WORKFLOW section (numbered steps)
- •CRITICAL RULES section
- •USAGE EXAMPLES section
- •RELATED section
CONTINUOUS IMPROVEMENT RULE for commands:
## CONTINUOUS IMPROVEMENT RULE
If you discover issues or improvements during execution, record them:
1. **Activate skill**: `Skill: plan-marshall:manage-lessons`
2. **Record lesson** with:
- Component: `{type: "command", name: "{command-name}", bundle: "{bundle}"}`
- Category: bug | improvement | pattern | anti-pattern
- Summary and detail of the finding
Write file:
Write: {bundle}/commands/{command-name}.md
Track files_created counter.
Step 5: Validate Generated Component
python3 .plan/execute-script.py pm-plugin-development:plugin-create:component validate --file "{file_path}" --type "command"
Validation checks:
- •Frontmatter format correct
- •All required sections present (WORKFLOW, USAGE EXAMPLES)
- •CONTINUOUS IMPROVEMENT RULE uses manage-lessons skill pattern
Step 6: Display Summary
Same format as agent workflow.
Step 7: Run Command Diagnosis
SlashCommand: /pm-plugin-development:plugin-doctor commands command-name={command-name}
Workflow 3: create-skill
Parameters:
- •
scope- Where to create (marketplace/global/project, default: marketplace) - •
bundle- Target bundle (optional, will prompt if not provided)
Steps:
Step 0: Load Foundation Skills
Skill: pm-plugin-development:plugin-architecture Skill: plan-marshall:ref-development-standards
These provide architecture principles and non-prompting tool usage patterns.
Step 1: Load Skill Standards
Read references/skill-guide.md
This provides skill patterns, resource organization, and progressive disclosure guidance.
Step 2: Interactive Questionnaire
Ask user for:
A. Skill name (kebab-case, descriptive)
- •Example:
java-unit-testing-patterns - •Validation: Must match kebab-case pattern
B. Bundle selection (same as agent workflow)
C. Short description (1 sentence, <100 chars)
D. Detailed description (2-3 sentences, what standards/knowledge skill provides)
- •Validation: Must be at least 100 chars
- •Error if too short: "Detailed description must be at least 100 characters: {current_length}/100" and retry
E. Skill type
- •Standards skill (provides coding/process standards)
- •Reference skill (provides reference material)
- •Diagnostic skill (provides diagnostic patterns/tools)
- •Validation: Must select 1-3
F. Standards categories (if standards skill)
- •What domains does this cover? (e.g., Java, Testing, Documentation)
G. Target audience
- •Who uses these standards? (developers, documentation writers, etc.)
H. Standards files (what standards files will be included)
- •Prompt user to list main standards documents
- •Suggest organization structure based on categories
Track questions_answered counter.
Step 3: Duplication Detection
Same pattern, using Glob/Grep to find similar skills.
Step 4: Create Skill Structure
Create directories:
bash mkdir -p {bundle}/skills/{skill-name}/standards
Generate SKILL.md:
Generate frontmatter:
python3 .plan/execute-script.py pm-plugin-development:plugin-create:component generate --type "skill" --config "{answers_json}"
Load template:
Read assets/templates/skill-template.md
Fill template with:
- •Generated frontmatter
- •Overview
- •What This Skill Provides
- •When to Activate
- •Workflow (how to use standards)
- •Standards Organization (list of standards files)
- •Tool Access requirements
Write SKILL.md:
Write: {bundle}/skills/{skill-name}/SKILL.md
Generate README.md:
Create skill overview README with:
- •Skill overview
- •Standards list
- •Usage examples
- •Integration notes
Write README:
Write: {bundle}/skills/{skill-name}/README.md
Create placeholder standards files:
For each standards file user specified:
Write: {bundle}/skills/{skill-name}/standards/{file-name}.md
With placeholder content:
# {Title}
[Content to be added]
## Overview
## Standards
## References
Track files_created and standards_files_created counters.
Step 5: Validate Generated Component
python3 .plan/execute-script.py pm-plugin-development:plugin-create:component validate --file "{skill_path}/SKILL.md" --type "skill"
Validation checks:
- •Frontmatter format correct
- •SKILL.md structure valid
- •No CONTINUOUS IMPROVEMENT RULE (skills don't have this)
Step 6: Display Summary
╔════════════════════════════════════════════════════════════╗
║ Skill Created Successfully ║
╚════════════════════════════════════════════════════════════╝
Skill: {skill-name}
Location: {file-path}
Bundle: {bundle-name}
Type: {skill-type}
Statistics:
- Questions answered: {questions_answered}
- Validations performed: {validations_performed}
- Duplication checks: {duplication_checks}
- Files created: {files_created}
- Standards files created: {standards_files_created}
Next steps:
1. Review skill file: {file-path}
2. Populate standards files in standards/ directory
3. Run diagnosis: /plugin-doctor skills skill-name={skill-name}
4. Test skill activation
Step 7: Run Skill Diagnosis
SlashCommand: /pm-plugin-development:plugin-doctor skills skill-name={skill-name}
Workflow 4: create-bundle
Parameters:
- •
scope- Where to create (marketplace/global/project, default: marketplace)
Steps:
Step 0: Load Foundation Skills
Skill: pm-plugin-development:plugin-architecture Skill: plan-marshall:ref-development-standards
These provide architecture principles and non-prompting tool usage patterns.
Step 1: Load Bundle Standards
Read references/bundle-guide.md
This provides bundle structure requirements, plugin.json configuration, naming conventions, and validation guidelines.
Step 2: Interactive Questionnaire
Ask user for:
A. Bundle name (kebab-case)
- •Example:
java-development-standards - •Validation: Must match kebab-case pattern
B. Display name (human-readable)
- •Example: "Java Development Standards"
C. Description (one sentence)
D. Version (semantic version, default: 1.0.0)
E. Author (bundle author name)
F. Bundle type
- •Standards bundle (provides development standards)
- •Tool bundle (provides commands/agents)
- •Mixed bundle (standards + tools)
- •Validation: Must select 1-3
G. Initial components
- •Skills? (y/n) - If yes, how many initially?
- •Commands? (y/n) - If yes, how many initially?
- •Agents? (y/n) - If yes, how many initially?
Track questions_answered counter.
Step 3: Create Bundle Structure
Load bundle structure template:
Read assets/templates/bundle-structure.json
Use this template for directories and plugin.json structure.
Create directories:
bash mkdir -p {scope}/bundles/{bundle-name}/{skills,commands,agents}
Generate plugin.json:
Create plugin.json using template from bundle-structure.json:
{
"name": "bundle-name",
"display_name": "Display Name",
"description": "Bundle description",
"version": "1.0.0",
"author": "Author Name",
"components": []
}
Write:
Write: {scope}/bundles/{bundle-name}/plugin.json
Generate README.md:
Create bundle README with:
- •Bundle overview and purpose
- •What this bundle provides
- •Components list (initially empty)
- •Installation instructions
- •Usage examples
- •Integration notes
Write:
Write: {scope}/bundles/{bundle-name}/README.md
Create component READMEs (if requested):
Write: {scope}/bundles/{bundle-name}/skills/README.md
Write: {scope}/bundles/{bundle-name}/commands/README.md
Write: {scope}/bundles/{bundle-name}/agents/README.md
Track files_created counter.
Step 4: Create Initial Components
For each component type user requested:
Skills: For each skill count:
# Recursively invoke workflow 3 (create-skill) # Pass scope and bundle-name parameters
Commands: For each command count:
# Recursively invoke workflow 2 (create-command) # Pass scope and bundle-name parameters
Agents: For each agent count:
# Recursively invoke workflow 1 (create-agent) # Pass scope and bundle-name parameters
Step 5: Update plugin.json
After components created, read plugin.json and update components array with created items.
Track components_created counter.
Step 6: Display Summary
╔════════════════════════════════════════════════════════════╗
║ Bundle Created Successfully ║
╚════════════════════════════════════════════════════════════╝
Bundle: {bundle-name}
Location: {bundle-path}
Type: {bundle-type}
Components created:
- Skills: {skills_count}
- Commands: {commands_count}
- Agents: {agents_count}
Statistics:
- Questions answered: {questions_answered}
- Files created: {files_created}
Next steps:
1. Review bundle: {bundle-path}
2. Add more components: Use /plugin-create
3. Test bundle
4. Run diagnosis: /plugin-doctor metadata
Step 7: Run Metadata Validation
SlashCommand: /pm-plugin-development:plugin-doctor metadata
Review results and offer to fix any metadata issues found.
References
This skill uses the following reference files (load on-demand):
Agent Creation
- •agent-guide.md - Agent design principles, tool selection, architecture rules
Command Creation
- •command-guide.md - Command design principles, quality standards, orchestration patterns
Skill Creation
- •skill-guide.md - Skill patterns, resource organization, progressive disclosure
Bundle Creation
- •bundle-guide.md - Bundle structure, plugin.json configuration, naming conventions
Scripts
Script: pm-plugin-development:plugin-create → component.py
| Subcommand | Purpose |
|---|---|
validate | Validates marketplace component structure |
generate | Generates YAML frontmatter for components |
component.py validate
Purpose: Validates marketplace component structure
Usage:
python3 .plan/execute-script.py pm-plugin-development:plugin-create:component validate --file <file_path> --type <component_type>
Output: JSON with validation results
component.py generate
Purpose: Generates YAML frontmatter for components
Usage:
python3 .plan/execute-script.py pm-plugin-development:plugin-create:component generate --type <component_type> --config '<answers_json>'
Output: Formatted YAML frontmatter string
Templates
This skill uses the following templates in assets/templates/:
- •agent-template.md - Template for new agents
- •command-template.md - Template for new commands
- •skill-template.md - Template for new skills (SKILL.md)
- •bundle-structure.json - Bundle directory structure template
Critical Rules
Frontmatter Format:
- •ALWAYS use comma-separated format for tools:
tools: Read, Write, Edit - •NEVER use array syntax:
tools: [Read, Write, Edit]
Tool Prohibitions:
- •Agents CANNOT use Task tool (Rule 6) - unavailable at runtime
- •Only maven-builder agent can execute Maven (Rule 7)
CONTINUOUS IMPROVEMENT RULE:
- •Agents: Use manage-lessons skill to record lessons (report to caller)
- •Commands: Use manage-lessons skill to record lessons
- •Skills: No CONTINUOUS IMPROVEMENT RULE
Validation:
- •ALL questionnaire responses must be validated
- •Clear error messages with retry prompts
- •Check for duplicates before creating
Progressive Disclosure:
- •Load reference guides on-demand (never load all at once)
- •Use relative paths for all resources
Quality Standards
Following these ensures:
- •Consistent component structure across marketplace
- •Proper frontmatter formatting
- •Architecture compliance
- •No duplicate components
- •Validated creation with post-diagnosis
- •Statistics tracking for transparency