[BUG] [1.0.64-] authentification to subagents are no longer propagated

I am experiencing the same issue. And rolling back to 1.0.63 fixed it for me.

I'm also seeing this. Using LiteLLM with set env vars works for the initial response, but subagents then use whatever the claude code default is (not what is set in /model or through env). This means subagents will then often fail with model access errors if the default model isn't supported in your own LiteLLM setup.

Found 3 possible duplicate issues:

1. https://github.com/anthropics/claude-code/issues/5737
2. https://github.com/anthropics/claude-code/issues/5465
3. https://github.com/anthropics/claude-code/issues/4505

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🤖 Generated with Claude Code

The other issues seem to be unrelated.

Ran into similar issue, found the subagent was using a model I didn't have access to.
Needed to set the CLAUDE_CODE_SUBAGENT_MODEL variable to an ARN I did have access to

Thanks @ire4ever1190 !

I can confirm that setting CLAUDE_CODE_SUBAGENT_MODEL with the same setting as my ANTHROPIC_MODEL fixes the issue.

From my perspective this issue can be closed, when this setting is document in the Model configuration section of the AWS Bedrock guide.

https://docs.anthropic.com/en/docs/claude-code/amazon-bedrock#4-model-configuration

Heh, I see part of the problem, or maybe all of it.

The code that inspects the environment variable looks like:

function NA2(A, B) {
  if (process.env.CLAUDE_CODE_SUBAGENT_MODEL) return process.env.CLAUDE_CODE_SUBAGENT_MODEL;
  if (!A) return VL(m40);
  return A === 'inherit' ? B : VL(A);
}

// elsewhere
let M = NA2(N.model, X)


// Where `n` appears to be the agent file model config:
N = L.find((k1) => k1.agentType === B)

// And `X` is a parameter
mainLoopModel: X

It needs a line of code in NA2 inserted to say something like:

  if (process.env.CLAUDE_CODE_SUBAGENT_MODEL) {
    if (process.env.CLAUDE_CODE_SUBAGENT_MODEL === 'inherit') {
      return B;
      }
    return process.env.CLAUDE_CODE_SUBAGENT_MODEL;
  }

@claude can you fix your own source code like a benevolent version of a self-improving skynet? I don't think you can here because this repo contains none... maybe you can send an email to suggest the fix, or do something else to reach the right code owner here?

I'm mildly disappointed I cannot interact with @claude here
shakes fist at clouds

This made me cranky enough again that I just went and added this to my .zshrc:

alexanderriccio@Alexanders-MacBook-Pro ~ % tail -n 6 ~/.zshrc
export CLAUDE_CODE_SUBAGENT_MODEL='opus'
echo \
"\n------NOTE------\n" \
">>>>>   AUTOMATICALLY SET CLAUDE_CODE_SUBAGENT_MODEL='opus' <<<<<\n" \
" See: https://github.com/anthropics/claude-code/issues/4855\n"\
"------NOTE------"

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