aaif-goose/goose · error

Failed to serialize arguments: {}

Error message

Failed to serialize arguments: {}

What it means

Error "Failed to serialize arguments: {}" thrown in aaif-goose/goose.

Source

Thrown at crates/goose/src/agents/execute_commands.rs:410

                    break;
                }
            }

            return Ok(Some(Message::assistant().with_text(
                prompt_info.unwrap_or_else(|| format!("Prompt '{}' not found", prompt_name)),
            )));
        }

        let mut arguments = HashMap::new();
        for param in params.iter().skip(1) {
            if let Some((key, value)) = param.split_once('=') {
                let value = value.trim_matches('"');
                arguments.insert(key.to_string(), value.to_string());
            }
        }

        let arguments_value = serde_json::to_value(arguments)
            .map_err(|e| anyhow!("Failed to serialize arguments: {}", e))?;

        match self
            .get_prompt(session_id, &prompt_name, arguments_value)
            .await
        {
            Ok(prompt_result) => {
                for (i, prompt_message) in prompt_result.messages.into_iter().enumerate() {
                    let msg = Message::from(prompt_message);

                    let expected_role = if i % 2 == 0 {
                        rmcp::model::Role::User
                    } else {
                        rmcp::model::Role::Assistant
                    };

                    if msg.role != expected_role {
                        let error_msg = format!(
                            "Expected {:?} message at position {}, but found {:?}",

View on GitHub (pinned to 3810898a74)

When it happens

Trigger: Thrown at crates/goose/src/agents/execute_commands.rs:410 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of aaif-goose/goose@3810898a74 (2026-08-16). Data as JSON: /api/errors/6843e604472d1c96. Report an issue: GitHub.