PR #2756: Add Codex config profile setting

• Repository: pingdotgg/t3code
• Author: jamesx0416
• State: open | merged: False
• Link: https://github.com/pingdotgg/t3code/pull/2756

Description (problem / solution / changelog)

What Changed

Adds a minimal Codex Config profile provider setting and threads it through Codex launch paths:

• Passes -p <profile> to Codex app-server status probes, app-server sessions, and codex exec text generation.
• Reads the selected profile's model_provider from Codex config and passes it into app-server thread/start / thread/resume startup.
• Avoids showing the OpenAI auth error as blocking when the profiled app-server returns models.
• Adds focused schema/runtime tests for the new setting and launch behavior.

Why

This lets T3 Code use Codex config profiles backed by non-default providers, such as a custom provider profile.

The explicit config lookup exists because of an upstream Codex app-server bug/limitation: codex -p <profile> app-server does not apply the profile's model_provider to thread/start by default, even though codex -p <profile> exec ... does. Without passing modelProvider explicitly, app-server starts threads with modelProvider: "openai" and can hit OpenAI 401s for custom-provider profiles.

Upstream issue: https://github.com/openai/codex/issues/23417

UI Changes

Adds a small Config profile text field to the existing Codex provider settings form. Before: <img width="812" height="538" alt="Screenshot 2026-05-19 at 3 27 38 pm" src="https://github.com/user-attachments/assets/7e294b4c-4f5d-44b8-a738-98dd7a8123d8" />

After: <img width="811" height="628" alt="Screenshot 2026-05-19 at 3 26 15 pm" src="https://github.com/user-attachments/assets/97eb1661-7d64-4fb5-92bf-b3cd358379e8" />

Checklist

• This PR is small and focused
• I explained what changed and why
• I included before/after screenshots for any UI changes
• I included a video for animation/interaction changes

Verification:

• bun fmt
• bun lint (passes with existing warnings)
• bun typecheck
• cd apps/server && bun run test src/provider/Layers/CodexProvider.test.ts src/provider/Layers/CodexSessionRuntime.test.ts src/textGeneration/CodexTextGeneration.test.ts src/serverSettings.test.ts

<!-- CURSOR_SUMMARY -->

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[!NOTE] Medium Risk Changes Codex provider launch/probe behavior and thread-start parameters (including auth-status determination), which can affect whether Codex sessions start and how they authenticate, but scope is limited to the Codex integration and is covered by new tests.

Overview Adds a new Codex provider setting, profileName, surfaced in the settings schema/UI and supported in settings patches.

When set, Codex commands now run with -p <profileName> for app-server probes, app-server session spawn, and codex exec text generation; session startup also reads Codex config (config/read) to extract model_provider (profile-specific first) and forwards it via modelProvider in thread/start/thread/resume.

Provider status probing is adjusted so profiled providers don’t treat requiresOpenaiAuth as blocking when non-custom models are present; tests are updated/added to validate profile propagation, modelProvider forwarding, and the auth/model readiness behavior.

^{Reviewed by Cursor Bugbot for commit 03a7261a21158209c140ffa3abe530770de17ba2. Bugbot is set up for automated code reviews on this repo. Configure here.}

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[!NOTE]

Add profileName config profile setting to Codex provider

• Adds profileName to CodexSettings in settings.ts, wiring it through the provider status check, session runtime, and text generation layers.
• When set, prepends -p {profileName} to app-server and codex exec command args, and reads profile-specific model config for thread start/resume requests.
• Providers with a configured profile treat requiresOpenaiAuth as non-blocking when models are available, allowing the provider to report ready without OpenAI auth.
• Behavioral Change: unauthenticated Codex accounts with a profile set no longer block provider readiness on OpenAI auth.

<!-- Macroscope's review summary starts here -->

^{<a href="https://app.macroscope.com">Macroscope</a> summarized 03a7261.}

<!-- Macroscope's review summary ends here -->

<!-- macroscope-ui-refresh --> <!-- Macroscope's pull request summary ends here --> <!-- This is an auto-generated comment: release notes by coderabbit.ai -->

Summary by CodeRabbit

• New Features

  • Added optional "Config profile" setting for the Codex provider, enabling profile-scoped configuration and model-provider selection; the Codex helper now forwards a selected profile to the Codex server process.

• Tests

  • Added and updated tests to validate profile handling, model-provider propagation, probe behavior, and settings patch/encoding for Codex profile.

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Changed files

• apps/server/src/provider/Layers/CodexAdapter.test.ts (modified, +26/-0)
• apps/server/src/provider/Layers/CodexAdapter.ts (modified, +1/-0)
• apps/server/src/provider/Layers/CodexProvider.ts (modified, +10/-3)
• apps/server/src/provider/Layers/CodexSessionRuntime.test.ts (modified, +3/-0)
• apps/server/src/provider/Layers/CodexSessionRuntime.ts (modified, +20/-1)
• apps/server/src/provider/Layers/ProviderInstanceRegistryLive.test.ts (modified, +1/-0)
• apps/server/src/provider/Layers/ProviderRegistry.test.ts (modified, +62/-0)
• apps/server/src/serverSettings.test.ts (modified, +5/-0)
• apps/server/src/textGeneration/CodexTextGeneration.test.ts (modified, +22/-1)
• apps/server/src/textGeneration/CodexTextGeneration.ts (modified, +1/-0)
• apps/web/src/components/KeybindingsToast.browser.tsx (modified, +1/-0)
• apps/web/src/components/settings/ProviderSettingsForm.test.ts (modified, +1/-0)
• packages/contracts/src/settings.ts (modified, +5/-0)