Hello Vercel Team,

We are preparing a controlled security remediation for an existing Next.js application connected to GitHub.

Our requirement is zero deployment creation during the initial setup of automatic Git deployment isolation.

We plan to use:

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{
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  "git": {
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    "deploymentEnabled": false
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  }
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}

Vercel Agent stated that the first commit introducing this configuration is evaluated at webhook ingestion before any deployment record is created.

Could a Vercel staff member or engineer confirm:

1. Is the first commit guaranteed to create zero deployment records, including canceled deployments?
2. Does this guarantee cover both Production and Preview environments?
3. Are there any exceptions or conditions that could still trigger a deployment?
4. Is there an authoritative technical reference documenting the first-commit behavior?

We understand that the Ignored Build Step is not sufficient because it can still create a canceled deployment record.

This is a technical clarification request only. No configuration changes or deployments are authorized.

Thank you.