Bug Fix for playwright-cli drag, drag is failing with Zod validation error

[sachinvarma-sf]

Expected behavior:
Expected: Drag-and-drop is performed between the two elements.

Actual behavior:
Zod validation error

[
  {
    "expected": "string",
    "code": "invalid_type",
    "path": ["startElement"],
    "message": "Invalid input: expected string, received undefined"
  },
  {
    "expected": "string",
    "code": "invalid_type",
    "path": ["endElement"],
    "message": "Invalid input: expected string, received undefined"
  }
]

Additional context

Root Cause:

The CLI daemon's drag command (playwright-core/lib/tools/cli-daemon/commands.js) converts positional args into startRef/endRef but never passes startElement/endElement to the MCP tool

Test added:

npm run ctest-mcp tests/mcp/cli-drag.spec.ts

Running 1 test using 1 worker

✓ 1 [chrome] › tests/mcp/cli-drag.spec.ts:19:5 › drag between elements (3.6s)

1 passed (4.2s)

[sachinvarma-sf]

@microsoft-github-policy-service agree company="salesforce"

[sachinvarma-sf]

Here’s another issue caused by the same bug - microsoft/playwright-cli#354

[github-actions]

Test results for "MCP"

6481 passed, 383 skipped

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Merge workflow run.