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Home / Reference / Settings keys

default

setting never mined JSON

A Claude Code settings key, read out of the shipped bundle. No mined inventory carries it: everything below comes from what this site has written about it.

Subagent nudging behaviour can be picked per model, but the whole feature stays behind a gate.

Not Anthropic's. This is the line from the earliest changelog entry here that named it, v2.1.219.

First seen — never in a mined build
Last seen — never in a mined build
Builds0 / 149on this box, as of v2.1.308
Written about v1.0.18 first named in a changelog, 9 Jun 2025

In the changelogs

65

Releases whose published page names default.

  1. v2.1.304
    --tools help now says "default" picks the default set of tools

    The help text for --tools now describes "default" as using the default set of tools rather than all tools

    found in this entry's text

  2. v2.1.299
    /effort and /fast now work in agent view

    In agent view, /effort and /fast now take effect instead of telling you to attach to a session

    found in this entry's text

  3. v2.1.296
    --tools handling for cloud sessions reworked

    For cloud sessions, --tools is now sorted into the default set, a refused list or another list, and errors now name the refused tools

    found in this entry's text

  4. v2.1.290
    Hidden --proactivity option for setting a proactivity level

    A --proactivity <level> command-line option now exists and is accepted, but it is hidden from the help text

    found in this entry's text

  5. v2.1.290
    New --proactivity flag sets how much Claude does on its own at startup

    A --proactivity flag picks the proactivity level when Claude Code starts, and CLAUDE_CODE_DISABLE_PROACTIVITY turns the selector off

    found in this entry's text

  6. v2.1.290
    Programs hosting Claude Code can force named MCP tools to ask permission

    A host can now list tools that must always ask before running, even ones that would normally allow themselves

    found in this entry's text

  7. v2.1.290
    Claude can be told how much to do on its own: low, medium or high proactivity

    A proactivity note in the conversation tells Claude whether to ask first, act normally or act on its own for commits, pushes, pull requests and follow-ups

    found in this entry's text

  8. v2.1.290
    A proactivity level can set the permission mode a session starts in

    When a proactivity level other than default is set, Claude Code can choose the starting permission mode from it

    found in this entry's text

  9. v2.1.290
    /code-review medium now runs the high-effort recipe on most models

    On every model without its own /code-review row, Opus 5.5 included, medium now runs the eight-angle high recipe instead of a single pass. high, xhigh and Opus 5 are unchanged.

    found in this entry's text

  10. v2.1.288
    Code review gains --max-findings to control how many findings are reported

    The code review command accepts --max-findings <n>, all or default, and remembers your choice for later reviews

    found in this entry's text

  11. v2.1.288
    Autocompact window setting can differ by model

    The autocompact window setting can now take a per-model value with a default, and auto falls back to the built-in value

    found in this entry's text

  12. v2.1.288
    The auto-compact window is now saved separately for each model

    Setting the auto-compact window in /config now applies to the current model only, not every model

    found in this entry's text

  13. v2.1.281
    Cloud session: better recovery when a launch or create permission mode is refused

    Cloud sessions recover more reliably when the permission mode you asked for is refused, with retries and a notice if they fail

    found in this entry's text

  14. v2.1.275
    Permission-mode 'auto' resolves to a concrete mode at request time

    'Auto' permission mode now resolves to a concrete mode when a tool request is made

    found in this entry's text

  15. v2.1.275
    auto-allow-bash-if-sandboxed setting surfaced in diagnostics with its source

    Diagnostics now report whether autoAllowBashIfSandboxed is on and where that value came from

    found in this entry's text

  16. v2.1.271
    New remote-control-plane commands: MCP reconnect/toggle, session titling/renaming, task stop/backgrounding, and flag settings

    Remote control connections can now reconnect/toggle MCP servers, rename sessions, stop tasks, and set effort/ultracode flags

    found in this entry's text

  17. v2.1.271
    Config schema: string settings can now declare a fixed picker of options

    Config settings can now define a fixed list of choices for string-type fields

    found in this entry's text

  18. v2.1.271
    New forPromptShellCommand context forces auto mode down to default

    Shell commands run as part of a prompt now force permission mode down from auto to default

    found in this entry's text

  19. v2.1.260
    New "proactive" permission-mode resolution

    A new proactive permission mode picks bypass or auto-accept mode based on context.

    found in this entry's text

  20. v2.1.260
    AskUserQuestion telemetry can include extended per-question fields and a title

    AskUserQuestion telemetry can now capture extended per-question fields and a title.

    found in this entry's text

  21. v2.1.259
    Additional CLI permission modes surfaced when replaying session state

    Replayed sessions now round-trip the default, plan, dontAsk and bubble permission modes, not just the three previously handled.

    found in this entry's text

  22. v2.1.248
    Managed-settings consent can no longer be answered by an in-flight keypress

    A keystroke already in flight can no longer accept your organization's managed settings prompt.

    found in this entry's text

  23. v2.1.248
    Managed-settings prompt is handed off from login and ignores leftover keystrokes

    The managed-settings prompt after login ignores leftover keystrokes so you can't answer by accident.

    found in this entry's text

  24. v2.1.247
    acceptEdits mode reaches remote clients unchanged

    acceptEdits mode now reaches remote clients intact instead of being downgraded to default.

    found in this entry's text

  25. v2.1.246
    New cloud sessions can push the permission mode they launched with

    New cloud sessions now tell the cloud which permission mode they started in, falling back if refused.

    found in this entry's text

  26. v2.1.246
    Tool inputs with untyped schemas are parsed instead of arriving as text

    MCP and plugin tools with loose input schemas now get real data instead of stringified JSON.

    found in this entry's text

  27. v2.1.242
    Server-side refusal fallbacks documented as supported on Claude Platform on AWS

    Server-side refusal fallbacks are now documented as working on Claude Platform on AWS, not just the Claude API.

    found in this entry's text

  28. v2.1.239
    Approving a plan keeps a still-running teammate's permission mode

    Approving a plan no longer resets the permission mode of a teammate still running.

    found in this entry's text

  29. v2.1.239
    Tool calls relayed from a cloud agent run under a restricted permission mode

    Tool calls relayed from a cloud agent are judged strictly: your hooks skip and relaxed permission modes are downgraded.

    found in this entry's text

  30. v2.1.236
    ANTHROPIC_DEFAULT_MODEL sets the model when nothing else does

    Set ANTHROPIC_DEFAULT_MODEL and it becomes your model whenever no flag or ANTHROPIC_MODEL applies.

    found in this entry's text

  31. v2.1.232
    Forked subagents are on by default

    Forked subagents are on by default in interactive sessions; set CLAUDE_CODE_FORK_SUBAGENT to false to opt out.

    found in this entry's text

  32. v2.1.232
    Fixed policy payloads are validated like managed settings

    Malformed admin fallback settings payloads are caught at startup instead of silently doing nothing.

    found in this entry's text

  33. v2.1.232
    Managed settings: policy helpers can carry a static fallback payload

    Admins can attach a static defaultSettings payload used when a policy helper is missing or fails.

    named in this entry, found in this entry's text

  34. v2.1.232
    Policy helper settings are now per-OS with a static fallback

    Policy helpers now take per-OS entries plus a static settings payload used when they fail.

    named in this entry, found in this entry's text

  35. v2.1.232
    A /config row for messages from your other sessions

    A settings row for handling messages from your other sessions exists but is hidden here.

    found in this entry's text

  36. v2.1.232
    Settings errors that block startup no longer appear in the invalid-settings dialog

    Startup-blocking settings errors are now reported as fatal rather than listed with the rest.

    found in this entry's text

  37. v2.1.232
    Managed policy can now ship a fixed settings payload, not just a helper program

    Admins can ship managed settings directly in policy, including per-OS defaults, without running a helper program.

    found in this entry's text

  38. v2.1.232
    Groundwork for a proactivity setting

    Sessions carry a proactivity level with a cycle keybinding, but the picker cannot be opened.

    found in this entry's text

  39. v2.1.232
    A proactivity level is threaded through sessions but does nothing yet

    A proactivityLevel setting is passed around sessions but changes nothing about Claude's behaviour yet.

    found in this entry's text

  40. v2.1.228
    Model selection forwarded on restart-in-place

    Your selected model is passed along whenever Claude Code re-executes itself.

    found in this entry's text

  41. v2.1.219
    Subagent steering can be resolved per model

    Subagent nudging behaviour can be picked per model, but the whole feature stays behind a gate.

    found in this entry's text

  42. v2.1.215
  43. v2.1.215
    Glob Tool Description Is Now Mode-Aware

    found in this entry's text

  44. v2.1.215
  45. v2.1.213
  46. v2.1.202
  47. v2.1.200
    manual as Alias for default Permission Mode

    found in this entry's text

  48. v2.1.199
  49. v2.1.187
    preset:default in allowed-tools

    found in this entry's text

  50. v2.1.182
  51. v2.1.169
    Permission Mode Downgrade Notification

    found in this entry's text

  52. v2.1.166
    fallbackModel setting in settings.json

    found in this entry's text

  53. v2.1.163

    found in this entry's text

  54. v2.1.119
  55. v2.1.110
    /tui Command — Switch Terminal Renderers

    found in this entry's text

  56. v2.1.97
    viewMode Configuration Setting

    found in this entry's text

  57. v2.1.92
    Keybinding Display System Overhaul

    found in this entry's text

  58. v2.1.75
    Plugin Configurable Options

    found in this entry's text

  59. v2.1.70
    Session Color Reset

    found in this entry's text

  60. v2.1.70
  61. v2.1.30
    SDK Schema Documentation

    found in this entry's text

  62. v1.0.81
    Improved Telemetry

    found in this entry's text

  63. v1.0.48
    New Features

    found in this entry's text

  64. v1.0.22
    Enhanced Permission Modes

    found in this entry's text

  65. v1.0.18
    Enhanced Permission Modes

    found in this entry's text

First cited

0

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.

Presence across releases

0

The miner has never read a build containing this name. It is here because a changelog entry of ours names it, which is evidence that it existed and not evidence of which releases carried it. The inventory starts at v2.1.138 and everything older than that was never mined.

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.

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