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Sweep 22 Oct 2026 · 04:32Z Build v2.1.308 527 read Stable v2.1.308 Latest v2.1.308 Next v2.1.308 Feeds RSS JSON llms.txt llms-full.txt Unofficial
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Claude Code v2.1.301 ·

SDK start-up message now lists the session's permission folder and added folders

The message an SDK session sends at start-up can now include the folder permission checks start from and any added working folders

Under the hood Internal Changes
JSON All of v2.1.301
Under the hoodTier: how much it should matter to you
2Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
SDKArea: what it touches
Internal ChangesKind: in v2.1.301,
Internal ChangesSection of the release
What

When a session run through the Agent SDK starts, Claude Code sends a start-up message describing it. This message can now include two optional fields, marked as internal:

  • original_cwd: the folder that file permission checks start from
  • additional_directories: folders added to the session with --add-dir, through settings and in similar ways

Both fields are left out on redacted connections and for organizations covered by HIPAA, the US health-privacy rules. Folders added only by settings that come with the repository are not listed. The saved session state now holds these two values too, when they are set.

Why

Programs that host Claude Code can learn from the start-up message which folder permissions are based on and which extra folders are open.

See this entry in the whole of v2.1.301 →

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