garrytan/gstack · error · Error

Usage: browse css <selector> <property>

Error message

Usage: browse css <selector> <property>

What it means

Error "Usage: browse css <selector> <property>" thrown in garrytan/gstack.

Source

Thrown at browse/src/read-commands.ts:327

      const filePath = rest[0];
      if (!filePath) throw new Error('Usage: browse eval <js-file> [--out <file>] [--raw]');
      if (bm) assertJsOriginAllowed(bm, page.url());
      validateReadPath(filePath);
      if (!fs.existsSync(filePath)) throw new Error(`File not found: ${filePath}`);
      const code = fs.readFileSync(filePath, 'utf-8');
      const wrapped = wrapForEvaluate(code);
      const result = await target.evaluate(wrapped);
      const str = resultToString(result);
      if (outPath) {
        const n = writeEvalResult(outPath, str, { raw });
        return `Eval result written: ${outPath} (${n} bytes)`;
      }
      return str;
    }

    case 'css': {
      const [selector, property] = args;
      if (!selector || !property) throw new Error('Usage: browse css <selector> <property>');
      const resolved = await session.resolveRef(selector);
      if ('locator' in resolved) {
        const value = await resolved.locator.evaluate(
          (el, prop) => getComputedStyle(el).getPropertyValue(prop),
          property
        );
        return value;
      }
      const value = await target.evaluate(
        ([sel, prop]) => {
          const el = document.querySelector(sel);
          if (!el) return `Element not found: ${sel}`;
          return getComputedStyle(el).getPropertyValue(prop);
        },
        [resolved.selector, property]
      );
      return value;
    }

View on GitHub (pinned to 94993f7401)

When it happens

Trigger: Thrown at browse/src/read-commands.ts:327 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of garrytan/gstack@94993f7401 (2026-08-12). Data as JSON: /api/errors/71cd20390d2b46f4. Report an issue: GitHub.