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πŸ›‘οΈ Sentinel: [security improvement]#144

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acebytes wants to merge 1 commit intomainfrom
sentinel/direct-process-execution-15384512853714418527
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πŸ›‘οΈ Sentinel: [security improvement]#144
acebytes wants to merge 1 commit intomainfrom
sentinel/direct-process-execution-15384512853714418527

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πŸ’‘ What: Refactored the toolExists method in CacheCategory.swift to use Foundation.Process natively rather than passing string-interpolated arguments to a shell wrapper function.

🎯 Why: This prevents any potential command injection vulnerabilities. Even though the current invocations pass static strings (like "npm"), using string interpolation in bash contexts (shell("/usr/bin/which \(tool)")) is an unsafe pattern. Passing dynamic inputs strictly as elements in Process().arguments ensures the shell cannot misinterpret them as executable commands, reinforcing the app's defense-in-depth posture.


PR created automatically by Jules for task 15384512853714418527 started by @acebytes

Avoid string interpolation in shell command wrappers. Used
Foundation.Process directly to evaluate /usr/bin/which status,
eliminating a potential command injection vector as part of
a defense-in-depth security approach.

Co-authored-by: acebytes <2820910+acebytes@users.noreply.github.com>
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Reviewed commit: 95af424837

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Comment on lines +189 to +193
let process = Process()
process.executableURL = URL(fileURLWithPath: "/usr/bin/which")
process.arguments = [tool]
process.standardOutput = FileHandle.nullDevice
process.standardError = FileHandle.nullDevice
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P1 Badge Preserve PATH when checking required tools

This refactor drops the explicit PATH that shell() previously set (/opt/homebrew/bin:/usr/local/bin:...), so which now inherits the app process environment. When the app is launched from Finder (or any context with a minimal PATH), toolExists("brew")/toolExists("npm") can return false even when those tools are installed in Homebrew locations, which causes resolvedPaths to continue before probe/fallback handling and makes entire cache categories disappear from scanning.

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