🤖 fix: classify Anthropic 'Input is too long' as context_exceeded #2400
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The categorizeError function inside the APICallError block only matched 'prompt is too long:', missing the 'Input is too long for requested model' variant. This caused it to fall through to 'api' instead of 'context_exceeded', preventing users from seeing the compaction suggestion UI.
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github-merge-queue
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removed this pull request from the merge queue due to failed status checks
Any commits made after this event will not be merged.
github-merge-queue
bot
removed this pull request from the merge queue due to failed status checks
Any commits made after this event will not be merged.
github-merge-queue
bot
removed this pull request from the merge queue due to failed status checks
Any commits made after this event will not be merged.
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Summary
Anthropic's "Input is too long for requested model" error was misclassified as
apiinstead ofcontext_exceeded, preventing users from seeing the compaction suggestion UI.Closes #1702
Background
In
categorizeError, theAPICallErrorblock only checked for"prompt is too long:"— the older Anthropic error format. The newer"Input is too long for requested model"variant fell through toreturn "api"and never reached the generic"too long"string match lower in the function (which only applies to plainErrorinstances, notAPICallError).Implementation
Added a second case-insensitive check for
"input is too long"alongside the existing"prompt is too long"pattern inside theAPICallError.isInstance()block.Generated with
mux• Model:anthropic:claude-opus-4-6• Thinking:xhigh