nikivdev/code · error

Gemini returned empty handoff

Error message

Gemini returned empty handoff

What it means

Error "Gemini returned empty handoff" thrown in nikivdev/code.

Source

Thrown at src/ai.rs:14717

        .context("failed to call Gemini API")?;

    if !resp.status().is_success() {
        let status = resp.status();
        let text = resp.text().unwrap_or_default();
        bail!("Gemini API error {}: {}", status, text);
    }

    let parsed: GeminiResponse = resp.json().context("failed to parse Gemini response")?;
    let content = parsed
        .candidates
        .get(0)
        .and_then(|c| c.content.parts.get(0))
        .and_then(|p| p.text.as_deref())
        .unwrap_or("")
        .trim();

    if content.is_empty() {
        bail!("Gemini returned empty handoff");
    }

    Ok(content.to_string())
}

fn parse_summary_response(content: &str) -> Result<SessionSummaryResponse> {
    if let Ok(parsed) = serde_json::from_str::<SessionSummaryResponse>(content) {
        return Ok(parsed);
    }

    let json_blob = extract_json_object(content)
        .ok_or_else(|| anyhow::anyhow!("summary response was not valid JSON"))?;
    serde_json::from_str(&json_blob).context("failed to parse summary JSON")
}

fn extract_json_object(s: &str) -> Option<String> {
    let start = s.find('{')?;
    let end = s.rfind('}')?;

View on GitHub (pinned to a747e741ae)

When it happens

Trigger: Thrown at src/ai.rs:14717 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of nikivdev/code@a747e741ae (2026-09-01). Data as JSON: /api/errors/01e1938af611d722. Report an issue: GitHub.