fix: dispatch opencode commands via run (#2410)

src/specify_cli/integrations/opencode/__init__.py

@@ -19,3 +19,27 @@ class OpencodeIntegration(MarkdownIntegration):
         "extension": ".md",
     }
     context_file = "AGENTS.md"
+
+    def build_exec_args(
+        self,
+        prompt: str,
+        *,
+        model: str | None = None,
+        output_json: bool = True,
+    ) -> list[str] | None:
+        args = [self.key, "run"]
+
+        message = prompt
+        if prompt.startswith("/"):
+            command, _, remainder = prompt[1:].partition(" ")
+            if command:
+                args.extend(["--command", command])
+                message = remainder
+
+        if model:
+            args.extend(["-m", model])
+        if output_json:
+            args.extend(["--format", "json"])
+        if message:
+            args.append(message)
+        return args