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Sweep 08 Oct 2026 · 18:53Z Build v2.1.295 516 read Stable v2.1.286 Latest v2.1.295 Next v2.1.295 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.290 ·

More credential files blocked on WSL and Windows

Claude Code now also protects Windows profile credential files reached through WSL's /mnt paths and through Windows short file names

You'll notice Improvements
JSON All of v2.1.290
You'll noticeTier: how much it should matter to you
1Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
PermissionsArea: what it touches
ImprovementsKind: in v2.1.290,
ImprovementsSection of the release

Unclear Which part of this the tengu_ticklish_pnueli flag controls is not clear.

What

Claude Code keeps a list of sensitive credential files that it blocks access to. That list now covers more locations:

  • Windows profile credential files reached from WSL (Windows Subsystem for Linux) through /mnt paths.
  • The same files reached through Windows short file names, the old 8.3-style names such as PROGRA~1.

The sandbox, which limits what commands Claude runs can touch, now also handles read rules that point outside the project folder and rules it cannot decide either way. This build also reads a server flag, tengu_ticklish_pnueli, which is off unless it is switched on remotely. The flag server has returned it on for this site's account.

Why

On WSL and Windows the same credential file can be reached under more than one path. Blocking those extra paths makes it harder to read the file by going around the usual name.

Read from
Feature flag
tengu_ticklish_pnueli Off by default, switched on for this account

The shipped code defaults this off, and the flag server returned on for the one account this site reads on this version. That is the reading that makes the entry above worth a second look, and it still says nothing about your account.

This account: on · anonymous baseline: on · compiled default in v2.1.290: off

These values were read against a different version of Claude Code, so treat them as the nearest reading available instead of one taken on this release.

Read once, for one account on one subscription tier, against v2.1.290. It isn't a statement about your account. What a flag value here can and cannot tell you

How sure we are
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubtWhich part of this the `tengu_ticklish_pnueli` flag controls is not clear.
The name it cites is new in this buildNew in this build: tengu_ticklish_pnueli

See this entry in the whole of v2.1.290 →

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