command-creator
Command Creator
Create command files that delegate to skills. Commands live in .claude/commands/ and are auto-discovered by Claude Code as /commandname.
Step 0: Check for Existing Command
Before creating, check if command already exists:
test -f .claude/commands/<command-name>.md && echo "EXISTS" || echo "NEW"
If EXISTS → use Read to inspect the current command file, then Edit to apply changes directly. Run the post-creation integration steps (Step 4) after updating.
If NEW → continue with Step 0.5.
Step 0.5: Companion Check
Before proceeding with creation, run the ecosystem companion check:
- Use
companion-check.cjsfrom.claude/lib/creators/companion-check.cjs - Call
checkCompanions("command", "{command-name}")to identify companion artifacts - Review the companion checklist — note which required/recommended companions are missing
- Plan to create or verify missing companions after this artifact is complete
- Include companion findings in post-creation integration notes
This step is informational (does not block creation) but ensures the full artifact ecosystem is considered.
When to Use
- Creating user-facing shortcuts to skills
- Simplifying complex skill invocations
- Providing memorable command names for common workflows
Command File Format
All commands use this pattern:
---
description: Brief description of what this command does
disable-model-invocation: true
---
Invoke the {skill-name} skill and follow it exactly as presented to you
Example: /tdd command
---
description: Test-driven development workflow with Iron Laws
disable-model-invocation: true
---
Invoke the tdd skill and follow it exactly as presented to you
Creation Workflow
Step 1: Validate Inputs
// Validate command name (lowercase, hyphens only)
const commandName = args.name.toLowerCase().replace(/[^a-z0-9-]/g, '-');
// Validate target skill exists
const skillExists = await fileExists(`.claude/skills/**/${args.skill}/SKILL.md`);
if (!skillExists) {
throw new Error(`Target skill not found: ${args.skill}`);
}
Step 2: Create Command File
const commandPath = `.claude/commands/${commandName}.md`;
const description = args.description || `Invoke the ${args.skill} skill`;
const content = `---
description: ${description}
disable-model-invocation: true
---
Invoke the ${args.skill} skill and follow it exactly as presented to you
`;
await writeFile(commandPath, content);
Step 3: Update Command Catalog
const catalogPath = '.claude/context/artifacts/catalogs/command-catalog.md';
const catalogContent = await readFile(catalogPath, 'utf-8');
// Add entry to catalog
const newEntry = `| /${commandName} | ${description} | ${args.skill} |`;
// Insert alphabetically
Step 4: Run Post-Creation Integration
const {
runIntegrationChecklist,
queueCrossCreatorReview,
} = require('.claude/lib/creator-commons.cjs');
await runIntegrationChecklist('command', commandPath);
await queueCrossCreatorReview('command', commandPath, {
artifactName: commandName,
createdBy: 'command-creator',
});
Post-Creation Integration
After command creation, run integration checklist:
const {
runIntegrationChecklist,
queueCrossCreatorReview,
} = require('.claude/lib/creator-commons.cjs');
// 1. Run integration checklist
const result = await runIntegrationChecklist('command', '.claude/commands/<command-name>.md');
// 2. Queue cross-creator review
await queueCrossCreatorReview('command', '.claude/commands/<command-name>.md', {
artifactName: '<command-name>',
createdBy: 'command-creator',
});
// 3. Review impact report
// Check result.mustHave for failures - address before marking complete
Integration verification:
- Command added to command-catalog.md
- Target skill exists and is valid
- Command file has proper YAML frontmatter
- Command is discoverable via
/commandname
Usage Examples
Create TDD Command
Skill({
skill: 'command-creator',
args: '--name tdd --skill tdd --description "Test-driven development workflow"',
});
Create Debug Command
Skill({
skill: 'command-creator',
args: '--name debug --skill debugging --description "Systematic debugging workflow"',
});
Related Skills
skill-creator- Create the skills that commands delegate toskill-updater- Update the underlying skill a command delegates to
Memory Protocol (MANDATORY)
Before starting:
Read .claude/context/memory/learnings.md
After completing:
- New command pattern →
.claude/context/memory/learnings.md - Command creation issue →
.claude/context/memory/issues.md - Delegation decision →
.claude/context/memory/decisions.md
ASSUME INTERRUPTION: If it's not in memory, it didn't happen.
Cross-Reference: Creator Ecosystem
This skill is part of the Creator Ecosystem. When research uncovers gaps, trigger the appropriate companion creator:
| Gap Discovered | Required Artifact | Creator to Invoke | When |
|---|---|---|---|
| Domain knowledge needs a reusable skill | skill | Skill({ skill: 'skill-creator' }) |
Gap is a full skill domain |
| Existing skill has incomplete coverage | skill update | Skill({ skill: 'skill-updater' }) |
Close skill exists but incomplete |
| Capability needs a dedicated agent | agent | Skill({ skill: 'agent-creator' }) |
Agent to own the capability |
| Existing agent needs capability update | agent update | Skill({ skill: 'agent-updater' }) |
Close agent exists but incomplete |
| Domain needs code/project scaffolding | template | Skill({ skill: 'template-creator' }) |
Reusable code patterns needed |
| Behavior needs pre/post execution guards | hook | Skill({ skill: 'hook-creator' }) |
Enforcement behavior required |
| Process needs multi-phase orchestration | workflow | Skill({ skill: 'workflow-creator' }) |
Multi-step coordination needed |
| Artifact needs structured I/O validation | schema | Skill({ skill: 'schema-creator' }) |
JSON schema for artifact I/O |
| User interaction needs a slash command | command | Skill({ skill: 'command-creator' }) |
User-facing shortcut needed |
| Repeated logic needs a reusable CLI tool | tool | Skill({ skill: 'tool-creator' }) |
CLI utility needed |
| Narrow/single-artifact capability only | inline | Document within this artifact only | Too specific to generalize |
Ecosystem Alignment Contract (MANDATORY)
This creator skill is part of a coordinated creator ecosystem. Any artifact created here must align with and validate against related creators:
agent-creatorfor ownership and execution pathsskill-creatorfor capability packaging and assignmenttool-creatorfor executable automation surfaceshook-creatorfor enforcement and guardrailsrule-creatorandsemgrep-rule-creatorfor policy and static checkstemplate-creatorfor standardized scaffoldsworkflow-creatorfor orchestration and phase gatingcommand-creatorfor user/operator command UX
Cross-Creator Handshake (Required)
Before completion, verify all relevant handshakes:
- Artifact route exists in
.claude/CLAUDE.mdand related routing docs. - Discovery/registry entries are updated (catalog/index/registry as applicable).
- Companion artifacts are created or explicitly waived with reason.
validate-integration.cjspasses for the created artifact.- Skill index is regenerated when skill metadata changes.
Research Gate (Exa + arXiv — BOTH MANDATORY)
For new patterns, templates, or workflows, research is mandatory:
- Use Exa for implementation and ecosystem patterns:
mcp__Exa__web_search_exa({ query: '<topic> 2025 best practices' })mcp__Exa__get_code_context_exa({ query: '<topic> implementation examples' })
- Search arXiv for academic research (mandatory for AI/ML, agents, evaluation, orchestration, memory/RAG, security):
- Via Exa:
mcp__Exa__web_search_exa({ query: 'site:arxiv.org <topic> 2024 2025' }) - Direct API:
WebFetch({ url: 'https://arxiv.org/search/?query=<topic>&searchtype=all&start=0' })
- Via Exa:
- Record decisions, constraints, and non-goals in artifact references/docs.
- Keep updates minimal and avoid overengineering.
arXiv is mandatory (not fallback) when topic involves: AI agents, LLM evaluation, orchestration, memory/RAG, security, static analysis, or any emerging methodology.
Regression-Safe Delivery
- Follow strict RED -> GREEN -> REFACTOR for behavior changes.
- Run targeted tests for changed modules.
- Run lint/format on changed files.
- Keep commits scoped by concern (logic/docs/generated artifacts).