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fix(llm): expand context overflow patterns (#37840)

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Co-authored-by: Aiden Cline <rekram1-node@users.noreply.github.com>
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opencode-agent[bot] 2026-07-19 22:15:21 -05:00 • committed by GitHub
commit 2a097f3af7
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2 changed files with 35 additions and 3 deletions
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12
packages/llm/src/provider-error.ts
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@ -3,13 +3,17 @@ import { LLMError, ProviderErrorEvent } from "./schema"
const patterns = [
/prompt is too long/i,
/request_too_large/i,
/input is too long for requested model/i,
/exceeds the context window/i,
/exceeds (?:the )?(?:model'?s )?maximum context length(?: of [\d,]+ tokens?|\s*\([\d,]+\))/i,
/input token count.*exceeds the maximum/i,
/tokens in request more than max tokens allowed/i,
/maximum prompt length is \d+/i,
/reduce the length of the messages/i,
/maximum context length is \d+ tokens/i,
/exceeds (?:the )?maximum allowed input length of [\d,]+ tokens?/i,
/input \(\d+ tokens\) is longer than the model'?s context length \(\d+ tokens\)/i,
/exceeds the limit of \d+/i,
/exceeds the available context size/i,
/greater than the context length/i,
@ -21,11 +25,17 @@ const patterns = [
/input length.*exceeds.*context length/i,
/prompt too long; exceeded (?:max )?context length/i,
/too large for model with \d+ maximum context length/i,
/prompt has [\d,]+ tokens?, but the configured context size is [\d,]+ tokens?/i,
/model_context_window_exceeded/i,
/too many tokens/i,
/token limit exceeded/i,
]
const exclusions = [/^(throttling error|service unavailable):/i, /rate limit/i, /too many requests/i]
export const isContextOverflow = (message: string) =>
patterns.some((pattern) => pattern.test(message)) || /^4(00|13)\s*(status code)?\s*\(no body\)/i.test(message)
!exclusions.some((pattern) => pattern.test(message)) &&
(patterns.some((pattern) => pattern.test(message)) || /^4(00|13)\s*(status code)?\s*\(no body\)/i.test(message))
export const isContextOverflowFailure = (failure: unknown) =>
failure instanceof LLMError