aaif-goose/goose · error

Duplicate tool name: {}

Error message

Duplicate tool name: {}

What it means

Error "Duplicate tool name: {}" thrown in aaif-goose/goose.

Source

Thrown at crates/goose-provider-types/src/formats/openai.rs:666

    msg.get("role") == Some(&json!("user"))
        && msg
            .get("content")
            .and_then(|c| c.as_array())
            .is_some_and(|arr| {
                !arr.is_empty()
                    && arr
                        .iter()
                        .all(|item| item.get("type") == Some(&json!("image_url")))
            })
}

pub fn format_tools(tools: &[Tool]) -> anyhow::Result<Vec<Value>> {
    let mut tool_names = std::collections::HashSet::new();
    let mut result = Vec::new();

    for tool in tools {
        if !tool_names.insert(&tool.name) {
            return Err(anyhow!("Duplicate tool name: {}", tool.name));
        }

        result.push(json!({
            "type": "function",
            "function": {
                "name": tool.name,
                "description": tool.description,
                "parameters": tool.input_schema,
            }
        }));
    }

    Ok(result)
}

/// Convert OpenAI's API response to internal Message format
pub fn response_to_message(response: &Value) -> anyhow::Result<Message> {
    let output_token_limit_reached = response

View on GitHub (pinned to 3810898a74)

When it happens

Trigger: Thrown at crates/goose-provider-types/src/formats/openai.rs:666 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/8552e561896c73bb. Report an issue: GitHub.