Codex 0.144+ refuses to load any config containing the top-level
`profile = "..."` key or `[profiles.<name>]` tables, so every machine running
the kit's output hit "Error loading configuration" and codex would not start.
Profiles now live in per-profile files:
- templates/global/{economy,balanced,deep}.config.toml, installed to
~/.codex/<name>.config.toml and selected with `codex --profile <name>`
- config.toml keeps the balanced values as its defaults, so plain `codex`
behaves as before without a profile selector
`profile` and `profiles.*` stay in the installer's strip lists so upgrading an
existing machine removes the legacy keys from its live config.
Also fixes two latent bugs in the merge, both hit while testing the above:
- Only text *before* the managed block was retained, so anything after it was
silently deleted on every install. `codex mcp add` appends [mcp_servers.*] to
the end of config.toml, so those servers would be wiped. Both sides are now
kept and filtered.
- The config was read with the locale default encoding and a leading BOM was
preserved, which could strand the BOM mid-file once content was merged around
the block -- invalid TOML. Read as utf-8-sig, write utf-8.
Verified against a seeded legacy config (BOM at byte 0, machine-specific
[mcp_servers] on both sides of the block): legacy keys stripped, both sides
preserved, idempotent across three runs, and `codex --profile economy exec`
returns a live model response.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
tevansandClaude Opus 4.8