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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>
This commit is contained in:
opencode-agent[bot]
2026-07-19 22:15:21 -05:00
committed by GitHub
co-authored by Aiden Cline
parent ba4b8e21f4
commit 2a097f3af7
2 changed files with 35 additions and 3 deletions
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packages/llm/src/provider-error.ts
+11 -1
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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
packages/llm/test/provider-error.test.ts
+24 -2
View File
@@ -2,7 +2,29 @@ import { describe, expect, test } from "bun:test"
import { isContextOverflow } from "../src"
describe("provider error classification", () => {
test("classifies Z.AI GLM token limit messages as context overflow", () => {
expect(isContextOverflow("tokens in request more than max tokens allowed")).toBe(true)
test("classifies provider token limit messages as context overflow", () => {
const messages = [
"tokens in request more than max tokens allowed",
'{"error":{"type":"request_too_large","message":"Request exceeds the maximum size"}}',
"Requested token count exceeds the model's maximum context length of 131072 tokens.",
"Input length (265330) exceeds model's maximum context length (262144).",
"Input length 131393 exceeds the maximum allowed input length of 131040 tokens.",
"The input (516368 tokens) is longer than the model's context length (262144 tokens).",
"Prompt has 5,958,968 tokens, but the configured context size is 256,000 tokens",
"Too many tokens",
"Token limit exceeded",
]
expect(messages.every(isContextOverflow)).toBe(true)
})
test("does not classify rate limits as context overflow", () => {
const messages = [
"Throttling error: Too many tokens, please wait before trying again.",
"Rate limit exceeded, please retry after 30 seconds.",
"Too many requests. Please slow down.",
]
expect(messages.some(isContextOverflow)).toBe(false)
})
})