CODEX CLI FAILS TO USE Z.AI GLM-4.7 DUE TO ROLE MISMATCH
OpenAI Codex CLI currently sends a 'developer' role message that Z.AI's Chat Completions (GLM-4.7) rejects, as it only accepts system/user/assistant roles. Ther...
OpenAI Codex CLI currently sends a 'developer' role message that Z.AI's Chat Completions (GLM-4.7) rejects, as it only accepts system/user/assistant roles. There is no Codex config to remap roles for custom providers, so integrations remain blocked even when using wire_api="chat".
LLM provider heterogeneity can silently break multi-model workflows due to incompatible chat role schemas.
Lack of role mapping forces teams to add adapters or pin tools, impacting velocity and reliability.
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Add contract tests that validate role schemas per provider and fail fast on non-supported roles.
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Prototype a thin adapter that maps developer->system for chat providers and run e2e tests against Z.AI GLM-4.7.
Legacy codebase integration strategies...
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Insert a proxy/gateway to normalize roles before hitting providers and feature-flag the change per environment.
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Pin Codex CLI version and isolate Z.AI usage behind an adapter while updating CI to catch schema drift.
Fresh architecture paradigms...
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Adopt a provider-agnostic chat schema internally with explicit role mappers per provider.
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Prefer providers or SDKs that natively support OpenAI Responses 'developer' role or document exact role compatibility.