Follow Discord
Sweep 22 Oct 2026 · 21:04Z Build v2.1.309 528 read Stable v2.1.308 Latest v2.1.309 Next v2.1.309 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.251 ·

Plugin eval sandbox cleanup verifies each directory as it walks

Eval sandbox cleanup verifies each directory as it walks so a swapped symlink can't redirect it.

Under the hood Internal Changes
JSON All of v2.1.251
Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
Plugin EvalArea: what it touches
Internal ChangesKind: in v2.1.251,
Internal ChangesSection of the release
What

Cleaning up a plugin eval sandbox now walks the directory tree recursively, confirming each step is still the same file it expected before changing its permissions to owner-only, so a symlink swapped in mid-cleanup cannot redirect it.

Details
  • the recursive unlock runs on Linux and WSL, or when the directory is explicitly marked as owned by the harness; it is skipped on Windows
  • the eval temp area gets its own tmp subdirectory created owner-only
Evidence

await hu(e, 448)

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

See this entry in the whole of v2.1.251 →

Feedback