platform-command-lifecycle-manager

Platform Command Lifecycle Manager

When to Use

Use this skill when:

• Creating a new command in .claude/commands/ or .gemini/commands/
• Verifying command parity between platforms
• Propagating a command to templates/common/

Creation Checklist

1. Determine gemini-parity: Does this command apply to Gemini/Antigravity?

   • If yes: create in BOTH .claude/commands/ AND .gemini/commands/
   • If Claude-only: add gemini-parity: skip to frontmatter

2. Propagate to common:

   • Always: copy to templates/common/.claude/commands/
   • If not gemini-parity: skip: also copy to templates/common/.gemini/commands/

3. Register in common-contract.json: Add entry to common_commands section

4. Run verification: bun scripts/verify-platform-lifecycle.ts must pass Check G

Propagation Rule

.claude/commands/<name>.md                    ← Claude Code source
.gemini/commands/<name>.md                    ← Gemini/Antigravity (if not skip)
templates/common/.claude/commands/<name>.md   ← Template propagation (Claude)
templates/common/.gemini/commands/<name>.md   ← Template propagation (if not skip)

Verification

bun scripts/verify-platform-lifecycle.ts
# Workspace-only template validator: run it from the workspace root (L0-only
# tooling — not shipped inside projects), never inside a variant/project.