From e69d10b6c978048510eec21ca5c648336ebacb47 Mon Sep 17 00:00:00 2001
From: Dax Raad <d@ironbay.co>
Date: Tue, 9 Sep 2025 23:25:27 -0400
Subject: [PATCH] repair tool calls when casing is wrong

---
 packages/opencode/src/session/index.ts | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/packages/opencode/src/session/index.ts b/packages/opencode/src/session/index.ts
index 2b49bb74..83f2d001 100644
--- a/packages/opencode/src/session/index.ts
+++ b/packages/opencode/src/session/index.ts
@@ -1007,6 +1007,17 @@ export namespace Session {
         }
       },
       async experimental_repairToolCall(input) {
+        const lower = input.toolCall.toolName.toLowerCase()
+        if (lower !== input.toolCall.toolName && tools[lower]) {
+          log.info("repairing tool call", {
+            tool: input.toolCall.toolName,
+            repaired: lower,
+          })
+          return {
+            ...input.toolCall,
+            toolName: lower,
+          }
+        }
         return {
           ...input.toolCall,
           input: JSON.stringify({