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feat(filesystem): support base64 edit replacements - #4411

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kingrubic wants to merge 1 commit into
modelcontextprotocol:mainfrom
kingrubic:feat-filesystem-edit-base64
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feat(filesystem): support base64 edit replacements#4411
kingrubic wants to merge 1 commit into
modelcontextprotocol:mainfrom
kingrubic:feat-filesystem-edit-base64

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@kingrubic

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Summary

  • add optional newText_base64 to edit_file edit operations
  • decode UTF-8 replacement text server-side before applying edits
  • add an integration test for PowerShell-style $() expressions sent as base64

Fixes #2033.

Tests

  • npm run build --workspace @modelcontextprotocol/server-filesystem
  • npm test --workspace @modelcontextprotocol/server-filesystem -- __tests__/structured-content.test.ts
  • npm test --workspace @modelcontextprotocol/server-filesystem

@kingrubic

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Closing this PR to keep the backlog tidy after more than 48 hours without maintainer feedback. Please feel free to reopen it if a maintainer finds it useful. Thank you.

@kingrubic kingrubic closed this Jul 14, 2026
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edit_file tool fails with PowerShell expressions containing dollar signs

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