jackwener/OpenCLI · error · CommandExecutionError

data.err

Error message

data.err

What it means

CommandExecutionError raised when the 'antigravity copy-code' in-page script returns an object carrying `err` — an error produced inside the browser context while locating or reading the code element (e.g. an exception in the eval script or a malformed result). The library surfaces that page-side error verbatim via `throw new CommandExecutionError(data.err, '')` rather than silently returning empty code text.

Source

Thrown at clis/antigravity/audit-extras.js:165

    ],
    columns: ['Field', 'Value'],
    func: async (page, kwargs) => {
        const idx = Number.isInteger(kwargs?.index) ? kwargs.index : null;
        const data = unwrapEvaluateResult(await page.evaluate(`(() => {
      const isVis = (el) => { const r = el.getBoundingClientRect(); return r.width > 1 && r.height > 1; };
      const btns = Array.from(document.querySelectorAll('button[aria-label="Copy code"]')).filter(isVis);
      if (!btns.length) return null;
      const idx = ${idx === null ? 'btns.length - 1' : (idx - 1)};
      const btn = btns[idx];
      if (!btn) return { err: 'index ' + (${idx} ?? 'last') + ' out of range. Have ' + btns.length + ' code blocks.' };
      // Find the <code> or <pre> element inside the parent block.
      let container = btn;
      for (let i = 0; i < 6 && container.parentElement; i++) container = container.parentElement;
      const code = container.querySelector('pre, code');
      return { text: code ? (code.innerText || '').trim() : (container.innerText || '').trim(), total: btns.length };
    })()`));
        if (!data) throw new EmptyResultError('antigravity copy-code', 'No code blocks visible.');
        if (data.err) throw new CommandExecutionError(data.err, '');
        return [
            { Field: 'TotalCodeBlocks', Value: String(data.total) },
            { Field: 'PickedIndex', Value: String(idx === null ? data.total : idx) },
            { Field: 'Length', Value: String((data.text || '').length) + ' chars' },
            { Field: 'Code', Value: data.text || '' },
        ];
    },
});

// -------- settings --------
cli({
    site: 'antigravity',
    name: 'settings',
    access: 'write',
    description: 'Click the Antigravity settings button (matched by data-testid="settings-button").',
    domain: '127.0.0.1',
    strategy: Strategy.UI,
    browser: true,

View on GitHub (pinned to 49907e53dc)

Solutions

1. Re-run once; mid-navigation races can produce transient page-side errors.
2. Inspect the `data.err` text in the error message — it names the actual in-page failure.
3. Check whether code blocks are inside shadow DOM/iframes and adjust the eval script to pierce them.
4. Update the container-walk/querySelector logic in audit-extras.js if the DOM nesting changed.

Example fix

// before
const code = container.querySelector('pre, code');

// after
const code = container.querySelector('pre, code')
  || container.querySelector('[class*="code"]');  // tolerate nesting changes

const probe = await page.evaluate("(() => { try { return { ok: !!document.querySelector('pre, code') }; } catch (e) { return { ok: false, err: String(e) }; } })()");
if (!probe.ok) throw new Error('Page structure incompatible: ' + probe.err);

function isCleanScrape(data) {
  return data != null && typeof data === 'object' && !('err' in data && data.err);
}

try {
  await runCmd('antigravity copy-code 0');
} catch (e) {
  if (e.code === 'EXEC') {
    console.error('In-page scrape failed:', e.message); // message carries data.err
    // adjust selectors / pierce shadow DOM, then retry
  } else throw e;
}

When it happens

Trigger: `data.err` is truthy after `page.evaluate(...)` — the in-page function threw (e.g. `code` lookup failed unexpectedly, cross-origin frame access, or the evaluated snippet returned { err: ... } from its own try/catch), typically when the DOM shape deviates from what the script assumes (no <pre>/<code> inside the walked-up parents).

Common situations: Antigravity renders code blocks in shadow DOM or an iframe the script cannot traverse; a UI update nests the copy button differently so walking up 6 parents finds no pre/code; the evaluate call hits a page navigation mid-run.

Related errors

• Still on the video publish page after trying to select 图文. D
• Editing form did not appear after image acquisition. The pag
• Could not trigger "${actionLabels[0]}" action${viaClause}${e
• Unexpected 12306 probe: ${JSON.stringify(probe)}
• Waiting for 12306 tk auth cookie

AI-assisted analysis of jackwener/OpenCLI@49907e53dc (2026-08-29). Data as JSON: /api/errors/5b1394c3330e312d. Report an issue: GitHub.