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mimo tool type 'web_search' is not supported by this gateway phase. #5501

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mimo tool type 'web_search' is not supported by this gateway phase.#5501
Labels
priority: P2Medium: provider/client-specific bug with a workaround, bounded enhancement tied to a tracked issue,providerProvider adapters, OpenAI-compat presets, upstream API quirksprovider-compatibilityProvider compatibility reports

Description

@yadanchina
yadanchina
opened on Sep 22, 2026

Client or integration

Codex App

Provider or upstream service

mimo

OpenCodex version

2.59.0

Endpoint or capability

/v1/responses

Current behaviour

tool type 'web_search' is not supported by this gateway phase.

Expected behaviour

可以正常返回内容，兼容websearch工具

Minimal redacted request or reproduction

无

Actual response or error

tool type 'web_search' is not supported by this gateway phase.

Upstream documentation

https://api.xiaomimimo.com/v1

Suggested mapping or implementation notes

No response

Additional context and attachments

No response

Checks

  • I searched existing provider and compatibility issues.
  • The request and response were redacted.
  • The expected behaviour is based on an upstream specification or a concrete client requirement.

Activity

  1. yadanchina
    added
    provider-compatibilityProvider compatibility reports
    providerProvider adapters, OpenAI-compat presets, upstream API quirks
    on Sep 22, 2026

  2. Ingwannu commented on Sep 23, 2026

    @Ingwannu
    Ingwannu
    on Sep 23, 2026
    Owner

    Thanks. I cannot validate this as an OpenCodex bug from the current report yet. The error says the selected MiMo gateway phase itself rejected the web_search tool, and the report does not identify the exact MiMo model, request tool declaration, adapter route, or upstream documentation stating that this endpoint accepts hosted web_search. Please add a minimal redacted request (model plus tools entry), the exact response/status, and a primary-source capability reference. If the upstream supports only ordinary function tools, OpenCodex should not advertise or translate Codex hosted web search into a capability the gateway does not provide.

  3. devin-ai-integration
    added
    priority: P2Medium: provider/client-specific bug with a workaround, bounded enhancement tied to a tracked issue,
    on Sep 24, 2026

  4. devin-ai-integration commented on Sep 24, 2026

    @devin-ai-integration
    devin-ai-integrationbot
    on Sep 24, 2026 – with Devin.ai Integration
    Contributor

    Triage: priority: P2 — mimo: hosted web_search tool unsupported.

    Criteria (P2): Medium: provider/client-specific bug with a workaround, bounded enhancement tied to a tracked issue, perf, or CI reliability.

    Matched pull requests:

  5. lidge-jun commented on Sep 26, 2026

    @lidge-jun
    lidge-jun
    on Sep 26, 2026
    Owner

    Fixed on dev by #5944, carried in bug-PR merge train batch 9B, #5985 (merge bf04176). Requests to Xiaomi MiMo destinations now drop the hosted web_search declarations MiMo rejects, matched on the destination hostname. Closing; please reopen if a build that includes bf04176 still gets the rejection.

  6. lidge-jun
    closed this as completedon Sep 26, 2026
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    priority: P2Medium: provider/client-specific bug with a workaround, bounded enhancement tied to a tracked issue,providerProvider adapters, OpenAI-compat presets, upstream API quirksprovider-compatibilityProvider compatibility reports

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