jackwener/OpenCLI · error · CommandExecutionError

selectedModelId ? `Gemini model selection read-back returned

Error message

selectedModelId ? `Gemini model selection read-back returned "${selectedModelId}", expected "${modelId}"` : `Gemini model selection did not expose selected model "${modelId}" after click`

What it means

CommandExecutionError thrown after a model click when reading back the current model (getCurrentGeminiModel) does not equal the requested modelId — either a different model is reported or no model is exposed at all. This is a post-action verification step to guarantee the selection took effect.

Source

Thrown at clis/gemini/utils.js:2747

        );
    }

    // Wait for React to render the menu.
    await page.wait(0.8);

    // Find and click the matching menu item.
    const raw = await page.evaluate(selectModelInMenuScript(modelId));
    const result = unwrapGeminiEvaluateResult(raw, 'Gemini model selection');
    if (!result || !result.ok) {
        throw new CommandExecutionError(
            result?.reason || 'Failed to select Gemini model "' + modelId + '"'
        );
    }

    await page.wait(0.5);
    const selectedModelId = await getCurrentGeminiModel(page);
    if (selectedModelId !== modelId) {
        throw new CommandExecutionError(
            selectedModelId
                ? `Gemini model selection read-back returned "${selectedModelId}", expected "${modelId}"`
                : `Gemini model selection did not expose selected model "${modelId}" after click`
        );
    }
}

View on GitHub (pinned to 49907e53dc)

Solutions

1. Re-run the selection command
2. Increase tolerance for UI lag (retry after a short wait)
3. Use the exact canonical model id from the picker listing

// verify the requested id is canonical before selecting
const available = await listGeminiModels(page);
if (!available.includes(modelId)) {
  throw new Error(`'${modelId}' not offered; closest: ${available.filter(m => m.includes(modelId.slice(0,10)))}`);
}

function matchesRequested(selected: string | null, modelId: string): boolean {
  return typeof selected === 'string' && selected.trim() === modelId;
}

try {
  await selectGeminiModel(page, modelId);
} catch (err) {
  if (err.message.includes('read-back')) {
    const current = await getCurrentGeminiModel(page);
    console.error(`Selection mismatch: got ${current}, wanted ${modelId}; retrying...`);
  }
  throw err;
}

When it happens

Trigger: At clis/gemini/utils.js:2747 the click succeeded but the UI state read-back returned a mismatched selectedModelId, or returned nothing within the wait window (0.5s).

Common situations: UI state not yet updated at read time; selection silently reverted; ambiguous model names resolving to a different entry; Gemini UI lag.

Related errors

• Gemini model discovery returned a malformed Browser Bridge e
• Gemini model discovery returned a malformed result
• ${pickerResult?.reason || 'Failed to open Gemini model picke
• Could not select thinking level '${thinkingValue}' in the Ge
• Unexpected Gemini probe: ${JSON.stringify(probe)}

AI-assisted analysis of jackwener/OpenCLI@49907e53dc (2026-08-29). Data as JSON: /api/errors/777c408ff71cd40f. Report an issue: GitHub.