code

A Claude Code settings key, read out of the shipped bundle. It was in the build from v2.1.301 and was gone by v2.1.302.

Releases whose published page names code.

1. v2.1.296 9 Oct 2026
   Gateway warns when settings will not reach Claude Desktop's Code tab

   The Claude apps gateway now warns that only settings inside a code: block reach Claude Desktop's Code tab, even with serve_to_desktop: true

   found in this entry's text

2. v2.1.296 9 Oct 2026
   Gateway policy files gain a code block for Claude Desktop's Code tab

   Gateway policy entries can now use a code block for Claude Desktop's Code tab, but it cannot be mixed with cli or settings blocks

   found in this entry's text

3. v2.1.296 9 Oct 2026
   Managed policy entries can carry a code section as well as cli

   Entries in managed.policies now accept a code key in addition to cli, and validation messages point to whichever one the entry uses

   found in this entry's text

4. v2.1.296 9 Oct 2026
   Desktop gateway warning now tells admins exactly what to change

   The Desktop gateway warning now says to set serve_to_desktop: true on the user's policy, or change cli to code in every policy

   found in this entry's text

5. v2.1.290 5 Oct 2026
   More Anthropic sites count as trusted documentation hosts

   Claude Code's list of trusted documentation hosts now includes claude.dev and Anthropic's experimental and raw GitHub locations

   found in this entry's text

6. v2.1.285 29 Sep 2026
   Claude Code help skill can only fetch pages from Claude's docs sites without asking

   The built-in skill that answers questions about Claude Code now has web fetching approved only for code.claude.com and platform.claude.com

   found in this entry's text

7. v2.1.281 23 Sep 2026
   /model error messages get codes and wording for hosts without the command

   Failed model switches now return an error code and no longer tell you to run /model where it isn't available

   found in this entry's text

8. v2.1.281 23 Sep 2026
   Model picked at launch skips the server check

   A model chosen at launch is no longer checked with the server, and rejected model switches now carry a code such as blocked_by_hook

   found in this entry's text

9. v2.1.281 23 Sep 2026
   Model switch rejections now return a machine-readable code

   A blocked model switch now returns a code field naming the reason, such as restricted_by_org or catalog_unknown

   found in this entry's text

10. v2.1.281 23 Sep 2026
    Setting auto permission mode now returns a machine-readable code

    When switching to auto permission mode fails, the result now includes a machine-readable code giving the reason

    found in this entry's text

11. v2.1.281 23 Sep 2026
    New refusal: path spelling that session permission rules cannot match

    Claude Code can now refuse a file path written in a form its permission rules cannot match and ask for the full path

    found in this entry's text

12. v2.1.281 23 Sep 2026
    SDK model switch at launch skips server confirmation; switch errors now carry a code

    A model chosen through the SDK at launch is no longer checked with the server first, and model-switch errors now include a code

    found in this entry's text

13. v2.1.280 22 Sep 2026
    Structured error objects with a code+description now get a dedicated short summary

    Error messages with a code and description now show a short, dedicated summary instead of a scanned-out file path or command

    found in this entry's text

14. v2.1.280 22 Sep 2026
    Working-directory registration failures now carry a machine-readable error code

    Working-directory registration failures now include a machine-readable error code alongside the human-readable reason

    found in this entry's text

15. v2.1.280 22 Sep 2026
    Denied path reason now carries a machine-readable code

    Denied-path errors now include a machine-readable 'outside_scope' code

    found in this entry's text

16. v2.1.273 15 Sep 2026
    AWS error parsing now also reads details.error_code

    AWS server error parsing now also reads error codes nested under details.error_code

    found in this entry's text

17. v2.1.261 4 Sep 2026
    Plugin command failures now tagged with claude.ai error codes

    Plugin command failure telemetry now tags claude.ai-specific error codes.

    found in this entry's text

18. v2.1.246 25 Aug 2026
    Artifact request failures say when the sandbox proxy blocked them

    A blocked network request no longer looks like an artifact permissions problem.

    found in this entry's text

19. v2.1.235 18 Aug 2026
    Account-on-hold handling is built end-to-end but dark behind tengu_lively_beaver (fallback: off)

    A full account-on-hold sign-in flow was added but stays unreachable pending a server-side gate

    found in this entry's text

20. v2.1.235 18 Aug 2026
    MCP tool permission dialogs render parameters as a key/value table

    MCP tool permission dialogs now render parameters as a formatted key/value table with links and timestamps

    found in this entry's text

21. v2.1.232 13 Aug 2026
    Plugin names are sanitized before appearing in failure messages

    A hostile plugin name can no longer inject escape codes into failure messages in your terminal.

    found in this entry's text

22. v2.1.232 13 Aug 2026
    Code blocks in HTML artifacts get syntax highlighting

    Code blocks in generated HTML artifacts now get syntax highlighting, within a size budget.

    found in this entry's text

23. v2.1.221 3 Aug 2026
    MCP error classification recognises typed HTTP and OAuth errors

    MCP auth and HTTP failures are classified more accurately, and cancelled tool calls no longer trigger slow-call warnings.

    found in this entry's text

24. v2.1.221 3 Aug 2026
    MCP HTTP auth errors matched on both code and errorCode

    Claude recognizes MCP login failures more reliably, so auth errors are handled instead of retried blindly.

    found in this entry's text

25. v2.1.221 3 Aug 2026
    MCP OAuth refresh retries on error codes and preserves issuer and redirect URI

    MCP OAuth token refresh retries smarter and keeps your saved redirect URI across reconnects.

    found in this entry's text

26. v2.1.203 7 Jul 2026
    claude.com/docs Added to WebFetch Pre-Approved Domains

    found in this entry's text

27. v2.1.110 15 Apr 2026

    found in this entry's text

28. v2.1.84 25 Mar 2026
    "Open in Claude Code on the Web" Action

    found in this entry's text

29. v2.1.19 23 Jan 2026

    found in this entry's text

30. v2.1.0 7 Jan 2026
    OAuth URL Parameter Redaction

    found in this entry's text

31. v1.0.114 15 Sep 2025
    Smart Editor Detection

    found in this entry's text

32. v0.2.106 9 May 2025
    Enhanced macOS Terminal Detection

    found in this entry's text

No release's published evidence quotes this name. The ledger indexes the Evidence lines of every changelog on this site, so this says nobody here has ever quoted it; it says nothing about how old the name is.

One row per release since the first build this name was read out of. Absent means the build was read and the name was not in it, never mined means no bundle for that release was ever archived, and a declared type or a default is only ever what that release's own bundle stated.

Read out of the published npm bundle release by release, and out of Anthropic's own documentation as this site captured it. Nothing on this page is a description anybody here wrote about what the settings key does. All settings keys.