Orchestrate subagents at scale with dynamic workflows changedworkflows
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146146With ultracode on, Claude decides when a task warrants a workflow. A single request can turn into several workflows in a row: one to understand the code, one to make the change, and one to verify it. This applies to every task in the session, so each request uses more tokens and takes longer than at lower effort levels.
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148Ultracode lasts for the current session and resets when you start a new one. Drop back with `/effort high` when you return to routine work. It's available on models that support `xhigh` [effort](/docs/en/model-config#adjust-effort-level); on other models the `/effort` menu doesn't offer it.
148`/effort ultracode` lasts for the current session; to have every session start with it, set the [`ultracode`](/docs/en/settings-reference#ultracode) setting. Drop back with `/effort high` when you return to routine work. It's available on models that support `xhigh` [effort](/docs/en/model-config#adjust-effort-level); on other models the `/effort` menu doesn't offer it.
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150150### Approve the plan before it runs
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169169In the Desktop app, an approval card shows the workflow name, the phase list, and a token-usage caution, with **Once**, **Always**, and **Deny** actions. The progress view appears in the Background tasks side pane.
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171Your permission mode controls only the launch prompt above. The subagents the workflow spawns always run in `acceptEdits` mode and inherit your [tool allowlist](/docs/en/settings#permission-settings), regardless of your session's mode. File edits are auto-approved.
171Your permission mode controls only the launch prompt above. The subagents the workflow spawns always run in `acceptEdits` mode and inherit your [tool allowlist](/docs/en/settings-reference#permission-settings), regardless of your session's mode. File edits are auto-approved.
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173173Shell commands, web fetches, and MCP tools that aren't in your allowlist can still prompt you mid-run. To avoid this on a long run, add the commands the agents need to your allowlist before starting.
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379379The default is `medium`. Until you choose a value, the `/config` row shows `medium (default)` and the workflow's `Running in background` line shows `medium size (/config)`. Requires Claude Code v2.1.219 or later; earlier versions default to `unrestricted`.
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381To change the guideline, pick a value for the Dynamic workflow size setting in `/config`, or run `/config workflowSizeGuideline=small`. On v2.1.219 and later, you can also set the [`workflowSizeGuideline` key](/docs/en/settings#available-settings) in any settings file; that value takes precedence over `/config`, and Claude Code hides the `/config` row while a settings file provides one.
381To change the guideline, pick a value for the Dynamic workflow size setting in `/config`, or run `/config workflowSizeGuideline=small`. On v2.1.219 and later, you can also set the [`workflowSizeGuideline` key](/docs/en/settings-reference#workflowsizeguideline) in any settings file; that value takes precedence over `/config`, and Claude Code hides the `/config` row while a settings file provides one.
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383383Changes take effect on the next prompt. The [runtime agent caps](#behavior-and-limits) still apply regardless of the setting.
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