fix(file): clear unused content when writing files

[mzxchandra]

Summary

• Explicitly clear unused Content when File Write receives a file so executor input merging cannot restore null or empty text.
• Preserve text-only writes and validation for conflicting file and text inputs.

Type of Change

• Bug fix

Testing

• 125 tests passed, including executor regression coverage.
• Verified upload → File Read → File Write → download in Arc against local dev servers; downloaded bytes match.
• Verified overwrite, conflicting Content rejection, empty text-only writes, and local deployed execution.
• Type-check, lint, block-registry check, all 46 audits (including API boundary validation), and docs manifest check passed.

Checklist

• Code follows project style guidelines
• Self-reviewed my changes
• Tests added/updated and passing
• No new warnings introduced
• I confirm that I have read and agree to the terms outlined in the Contributor License Agreement (CLA)

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1 Skipped Deployment

Project	Deployment	Actions	Updated
docs	Skipped		Sep 11, 2026 8:04pm UTC

[greptile-apps]

Confidence Score: 5/5

The PR appears safe to merge; the prior malformed-Content issue is fully fixed and no new actionable failures remain.

Summary

• Explicitly serializes unused Content as undefined when a file is selected.
• Preserves malformed or populated Content for contract validation.
• Adds executor regression tests for empty, null, omitted, conflicting, malformed, and text-only Content values.

Diagram

%%{init: {'theme': 'neutral'}}%%
flowchart TD
    A[File Write inputs] --> B{File selected?}
    B -- No --> C[Preserve Content]
    B -- Yes --> D{Content is null, undefined, or empty?}
    D -- Yes --> E[Set Content to undefined]
    D -- No --> F[Preserve Content for contract validation]
    C --> G[Validate and execute write]
    E --> G
    F --> G

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[mzxchandra]

@greptile

[mzxchandra]

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