fix(provider): use honest metadata instead of misleading 'Attached' l…

…abel for unsupported parts Replace 'Attached' with 'User provided' and add a suffix explaining the file is still available via tools and filesystem, even if this model cannot process it directly. This prevents the LLM from hallucinating that it has direct access to the file content while still informing it the file exists and can be routed to vision-capable tools.
andrea-tomassi · May 25, 2026 · May 25, 2026 · May 25, 2026 · May 26, 2026 · May 27, 2026
commit 2e52165d473ff76c7ae269d4a4aeafbafdbc99db
diff --git a/packages/opencode/src/provider/transform.ts b/packages/opencode/src/provider/transform.ts
@@ -422,7 +422,7 @@ function unsupportedParts(msgs: ModelMessage[], model: Provider.Model): ModelMes
 
       return {
         type: "text" as const,
-        text: `[Attached ${modality}${filename ? `: "${filename}" (${mime})` : ` (${mime})`}]`,
+        text: `[User provided ${modality}${filename ? `: "${filename}" (${mime})` : ` (${mime})`}. Direct processing unsupported — available via tools and filesystem.]`,
       }
     })