fix: AI chat killed after 60 seconds on Vercel - #477
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Vercel resolves vercel.json function patterns first-match-wins in
definition order, so the 60s catch-all listed above the chat route
entry swallowed it — Vercel hard-killed every agent run at 60s and
turns ended silently truncated ("Thought for 1m" with no result).
List the specific route first so its 300s budget actually applies.
Co-authored-by: Cursor <cursoragent@cursor.com>
ysamcode
requested review from
liamwalder,
lunenas and
tristan-mouchet
as code owners
July 28, 2026 07:49
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Summary
The 1.28.9 fix that moved the AI chat route's
maxDurationintovercel.jsondoesn't take effect: Vercel resolvesfunctionspatterns first-match-wins in definition order, and the 60s catch-allapp/(builder)/ycode/api/**/*.tsis listed above the chat route entry. Every agent run gets hard-killed at 60 seconds, so turns end silently truncated ("Thought for 1m" with no result).Refs: Vercel duration docs (ordering note), vercel/vercel#15315 (
getLambdaOptionsFromFunctionis first-match-wins).Changes
app/(builder)/ycode/api/ai/chat/route.tsentry above the builder API catch-all invercel.jsonso its 300s budget actually appliesTest plan
Made with Cursor