"Input is too long for requested model" not classified as context_exceeded

[ethanndickson]

Summary

When Anthropic returns an error with message "Input is too long for requested model", it's classified as api instead of context_exceeded. This prevents users from seeing the compaction suggestion UI.

Root Cause

In src/node/services/streamManager.ts, the categorizeError function inside the APICallError.isInstance() block only checks for one pattern:

// Check for Anthropic context exceeded errors
if (error.message.includes("prompt is too long:")) {
  return "context_exceeded";
}

return "api";  // Falls through here!

The actual error message "Input is too long for requested model" doesn't match "prompt is too long:", so it returns "api" and never reaches the generic string matching below that would catch "too long".

Impact

• Error shows API badge instead of context_exceeded
• User doesn't see the compaction suggestion UI
• User is stuck with no guidance on how to recover

---

Generated with mux