From 6f5b70e681b3a257c01fae1df4dbfe555cd216ef Mon Sep 17 00:00:00 2001
From: Aiden Cline <63023139+rekram1-node@users.noreply.github.com>
Date: Fri, 27 Mar 2026 15:19:51 -0500
Subject: [PATCH] tweak: add additional overflow error patterns (#19446)

---
 packages/opencode/src/provider/error.ts | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/packages/opencode/src/provider/error.ts b/packages/opencode/src/provider/error.ts
index 7a171f4dbb..52e525177a 100644
--- a/packages/opencode/src/provider/error.ts
+++ b/packages/opencode/src/provider/error.ts
@@ -23,6 +23,9 @@ export namespace ProviderError {
     /request entity too large/i, // HTTP 413
     /context length is only \d+ tokens/i, // vLLM
     /input length.*exceeds.*context length/i, // vLLM
+    /prompt too long; exceeded (?:max )?context length/i, // Ollama explicit overflow error
+    /too large for model with \d+ maximum context length/i, // Mistral
+    /model_context_window_exceeded/i, // z.ai non-standard finish_reason surfaced as error text
   ]
 
   function isOpenAiErrorRetryable(e: APICallError) {