tinyhumansai/openhuman · error · anyhow::Error

Missing 'selector' for hover

Error message

Missing 'selector' for hover

What it means

Browser action parser guard: a 'hover' action was requested without its mandatory 'selector' argument, so no target element exists to hover. Fires in parse_browser_action before any browser command is issued.

Source

Thrown at src/openhuman/tools/impl/browser/action_parser.rs:98

            selector: args
                .get("selector")
                .and_then(|v| v.as_str())
                .map(String::from),
            ms: args.get("ms").and_then(serde_json::Value::as_u64),
            text: args.get("text").and_then(|v| v.as_str()).map(String::from),
        }),
        "press" => {
            let key = args
                .get("key")
                .and_then(|v| v.as_str())
                .ok_or_else(|| anyhow::anyhow!("Missing 'key' for press"))?;
            Ok(BrowserAction::Press { key: key.into() })
        }
        "hover" => {
            let selector = args
                .get("selector")
                .and_then(|v| v.as_str())
                .ok_or_else(|| anyhow::anyhow!("Missing 'selector' for hover"))?;
            Ok(BrowserAction::Hover {
                selector: selector.into(),
            })
        }
        "scroll" => {
            let direction = args
                .get("direction")
                .and_then(|v| v.as_str())
                .ok_or_else(|| anyhow::anyhow!("Missing 'direction' for scroll"))?;
            Ok(BrowserAction::Scroll {
                direction: direction.into(),
                pixels: args
                    .get("pixels")
                    .and_then(serde_json::Value::as_u64)
                    .map(|p| u32::try_from(p).unwrap_or(u32::MAX)),
            })
        }
        "is_visible" => {

View on GitHub (pinned to 7491200858)

Solutions

1. Include a 'selector' string in the hover action arguments
2. Obtain a valid selector from a prior snapshot of the page

When it happens

Trigger: Thrown at src/openhuman/tools/impl/browser/action_parser.rs:98 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of tinyhumansai/openhuman@7491200858 (2026-08-17). Data as JSON: /api/errors/616719fa4a14578b. Report an issue: GitHub.