fix: fixed ollama json decoding of payload

Author: evilsocket

nerve-core/src/agent/generator/ollama.rs

@@ -196,7 +196,12 @@ impl Client for OllamaClient {
 
                     if let Some(args) = call.function.arguments.as_ref() {
                         for (name, value) in args {
-                            let str_val = value.to_string().trim_matches('"').to_string();
+                            let mut content = value.to_string();
+                            if let serde_json::Value::String(escaped_json) = &value {
+                                content = escaped_json.to_string();
+                            }
+
+                            let str_val = content.trim_matches('"').to_string();
                             if name == "payload" {
                                 payload = Some(str_val);
                             } else {

nerve-core/src/agent/namespaces/filesystem/mod.rs

@@ -207,11 +207,16 @@ impl Action for AppendToFile {
 
         let content_to_append = if extension == "json" || extension == "jsonl" {
             // parse the payload as a JSON object
-            if let Ok(value) = serde_json::from_str::<serde_json::Value>(&payload) {
+            let parsed = serde_json::from_str::<serde_json::Value>(&payload);
+            if let Ok(value) = parsed {
                 // reconvert to make sure it's on a single line
                 serde_json::to_string(&value).unwrap()
             } else {
-                log::error!("can't parse payload as JSON: {}", payload);
+                log::error!(
+                    "can't parse payload as JSON: {} - {}",
+                    parsed.err().unwrap(),
+                    payload
+                );
                 serde_json::to_string(&InvalidJSON { data: payload }).unwrap()
             }
         } else {