Skip to content
CC Switch WikiUnofficial Community Wiki

unsupported call: - Codex

Quick fix

Upgrade cc-switch to v3.16.4+ to fix tool call name/id overwritten by empty deltas during streaming conversion.

Symptom

Section titled “Symptom”
Error output
unsupported call:

Cause

Section titled “Cause”

When cc-switch converts upstream Chat Completions streaming responses into Responses-API events, it accumulates tool call arguments by index. Some providers (e.g., GLM, MiniMax) send name and id only in the first tool_calls delta; later chunks have empty fields. In v3.16.3 and earlier, the accumulator is overwritten by these empty values, so Codex receives empty name and call_id and refuses to run. This affects models using opaque IDs (e.g., call_<hash>); models whose IDs encode the name (e.g., Kimi) are not affected.

Fix

Section titled “Fix”

  1. Upgrade cc-switch to v3.16.4 or later. This version fixes the defect where accumulated tool-call state was overwritten by empty deltas and no longer relies on names encoded in IDs.

Affected Versions

Section titled “Affected Versions”
ToolCodex
Versionaffected range: cc-switch <= 3.16.3
PlatformsmacOSLinux

Source Issues

Section titled “Source Issues”

This page is distilled from 1 real issues

FAQ

Section titled “FAQ”
Why does kimi-k2.7-code work, but glm-5.2 and MiniMax-M2.5 fail?
kimi-k2.7-code encodes the name in its ID (e.g., functions.run:0), so older cc-switch can recover the name. GLM and MiniMax use opaque IDs (e.g., call_<hash>), which v3.16.3 cannot recover, leaving the name empty.
The model can chat normally, but tool calls return empty. Is this an upstream API issue?
No. This is not an upstream API issue. cc-switch loses the tool call name and ID during streaming conversion. Upgrade cc-switch to v3.16.4 to resolve it.
Section titled “Related problems”
Invalid schema for function 'codex_app__automation_update'Upgrade cc-switch to v3.18.0+ to fix upstream HTTP 400 errors caused by missing type: object in Codex tool parameters.5 issues mergedError running remote compact taskTurn Remote Compaction off in Codex settings and use local compaction, working around this protocol conversion defect.4 issues mergedAdd CoderPlan provider preset for Claude CodeFeature request: add a CoderPlan provider preset to cc-switch. A Claude Code preset PR exists, but merge status is unconfirmed.1 issues merged

This is an unofficial community wiki with no affiliation to the cc-switch authors or the project itself. Its content is compiled from the project's public GitHub issues. This site distributes no software.