codex-keysmith-instruction-installer

Skill by ara.so — Codex Skills collection.

Overview

codex-keysmith is a Python CLI tool that safely installs local Markdown instruction files into Codex CLI's configuration directory and sets the model_instructions_file configuration option. It provides preview-first workflows, automatic backups, and path safety validation to prevent accidental file overwrites or directory escapes.

Key features:

• Preview-only by default (requires explicit --yes to write)
• Automatic backup of config.toml and existing instruction files
• Path validation to prevent directory traversal
• Bundled GPT-5.5 unrestricted-mode example (optional)
• Support for custom .md instruction files