Fix OpenAI reasoning effort capabilities

[rafaeelricco]

Motivation

■ Failed to create OpenAI response: 400 Unsupported value: minimal is not supported with the gpt-5.6-sol model. Supported values are: none, low, medium, high, and xhigh.

What's New

Model-Aware Effort Selection

• Preserve OpenAI OAuth catalog capabilities and expose only reasoning efforts supported by both the selected model and installed SDK.
• Carry the selected model through setup and model flows so the effort picker excludes unsupported values and normalizes stale selections to the model default.
• Refresh OpenAI OAuth capabilities in commit effort; API-key OpenAI and other providers retain their offline behavior.

Resilient OpenAI Requests

• Retry only effort-specific OpenAI 400 responses once without reasoning, allowing the provider default.
• Record the effective effort in request metadata so fallback requests report provider default.

OpenAI Effort Selection Flow

graph TD
    A[OpenAI OAuth model catalog] --> B[Model capabilities]
    B --> C[Effort picker]
    C --> D[Responses request]
    D --> E{Unsupported effort 400?}
    E -->|No| F[Use selected effort]
    E -->|Yes, once| G[Retry without reasoning]
    G --> H[Provider default effort]
    style B fill:#808080,stroke:#333,stroke-width:2px
    style G fill:#808080,stroke:#333,stroke-width:2px

Loading

Testing & Feedback

• Cover catalog capability filtering, stale-picker normalization, legacy minimal config decoding, OAuth refresh behavior, narrow fallback, and effective-effort metadata.
• Verify with pnpm test, pnpm typecheck, pnpm lint, and pnpm build.

If you find any bugs or have recommendations for improvements, please open an issue and assign it to me.

[chatgpt-codex-connector]

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[rafaeelricco]

@codex review

[chatgpt-codex-connector]

Codex Review: Didn't find any major issues. Swish!

Reviewed commit: 1ab236f460

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