AI_APICallError: messages.1.content.2: tool_use ids must be unique #1279

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1. kehanzhang commented on Jul 24, 2025

   

   kehanzhang

   on Jul 24, 2025

   Contributor

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   bump on this, I also received a similar error when switching from groq kimik2 to claude sonnet 4:

   AI_APICallError: messages.1.content.1.tool_use.id: String should match pattern '^[a-zA-Z0-9_-]+$'

   Was using opencode serve.

   👍React with 👍1Reacted by Kostiantyn Doichev
2. thdxr

   self-assigned this

   on Jul 25, 2025
3. learningbizz commented on Oct 20, 2025

   

   learningbizz

   on Oct 20, 2025

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   Hey everyone, any update on this?
4. rekram1-node commented on Oct 20, 2025

   

   rekram1-node

   on Oct 20, 2025

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   @learningbizz which one are you getting? The two comments on this issue are 2 different issues
5. 9j commented on Nov 21, 2025

   

   9j

   on Nov 21, 2025

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   @thdxr The files at ~/.local/share/opencode/storage/part/msg**/*.json are storing callId as an empty string (""). When converting to message, content.id also becomes an empty string (""), causing an error with the Anthropic message API’s ID validation regex.

   {
     "id": "prt_aa6401d920022OBPy2ay549OqK",
     "sessionID": "ses_559c2afb2ffeJiqEaco1mWqQNf",
     "messageID": "msg_aa63f58d30021OXFnXy86X99rh",
     "type": "tool",
     "callID": "",
     "tool": "invalid",
     "state": {
       "status": "completed",
       "input": {
         "tool": "edit",
   
6. thdxr

   closed this as completedon Mar 25, 2026