Feature request: fleet baseline sync for Codex local configuration across Macs

What variant of Codex are you using?

APP

What feature would you like to see?

I use Codex across multiple Macs and want a safe native way to keep baseline configuration consistent.

Desired feature:

• Sync or export/import portable Codex baseline settings across machines.
• Include AGENTS.md/global instructions, approved plugin list, skills, safe feature flags, and non-secret MCP templates.
• Exclude auth.json, sessions, SQLite DBs, caches, logs, memories, credentials, installation IDs, project trust paths, computer-use runtime state, and machine-specific absolute paths.
• Support per-machine overrides for local providers such as Ollama, Xcode/MCP availability, and local runtime paths.
• Provide a dry-run diff before applying changes.

Current problem:
Codex stores important configuration locally in ~/.codex/config.toml, ~/.codex/AGENTS.md, plugin state, skills, and MCP config. There does not appear to be a single supported sync/export/import workflow, so fleet consistency currently requires manual inspection and risky copying unless the user is very careful.

Use case:
Small Mac fleet with one controller Mac and several specialist Macs. I want consistent safety instructions and baseline capabilities without copying secrets or machine-local state.

Additional information

_No response_