Host: Codex CLI — This skill was designed for Claude Code and adapted for Codex. Cross-reference commands use installed skill names in Codex rather than /octo:* slash commands. Use the active Codex shell and subagent tools. Do not claim a provider, model, or host subagent is available until the current session exposes it. For host tool equivalents, see skills/blocks/codex-host-adapter.md.

Writing Plans

MANDATORY COMPLIANCE — DO NOT SKIP

When this skill is invoked, you MUST produce a full implementation plan following the structure below. You are PROHIBITED from:

• Skipping the plan and jumping straight to implementation
• Producing a vague outline instead of the zero-context plan format
• Deciding the task is "simple enough" to not need a plan
• Omitting file paths, complete code, test instructions, or verification steps

The user asked for a plan, not an implementation. Write the plan first.