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16 pages for ultracode.
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Subagents in the SDK
Claude Code CLI · in the page
agent-sdk/subagents
…ached`, until the running count drops below the limit. Sessions with [ultracode](/docs/en/model-config#adjust-effort-level) active are never refused. See the [concurrent subagent limit](/docs/en/sub-a…
Agent SDK reference - TypeScript
Claude Code CLI · in the page
agent-sdk/typescript
…effect mid-session: * **Applied on the next turn**: `effortLevel`, `ultracode`, `permissions`, `hooks`, `skillOverrides`, `fastMode`, `agent`. Switching `agent` also applies that agent's model overr…
Manage multiple agents with agent view
Claude Code CLI · in the page
agent-view
…-level `--effort` flag](/docs/en/cli-reference#cli-flags), including `ultracode`. `--agent` sets the [subagent](/docs/en/sub-agents) used when a dispatch prompt doesn't name one, either with `@name`…
Claude Code changelog
Claude Code CLI · in the page
changelog
…he client to retry * Fixed the `/model` picker silently ignoring an Ultracode selection; picking Ultracode now applies it to the current session * Fixed `/resume` only listing the 50 most recent s…
CLI reference
Claude Code CLI · in the page
cli-reference
…urrent session. Options: `low`, `medium`, `high`, `xhigh`, `max`, or `ultracode`. Available levels depend on the model. `ultracode` starts the session at `xhigh` effort with [ultracode](/docs/en/workf…
Commands
Claude Code CLI · in the page
commands
…docs/en/model-config#adjust-effort-level): `low` to `xhigh`, `max`, [`ultracode`](/docs/en/workflows#let-claude-decide-with-ultracode), or `auto`; `status` prints it. `max` and `ultracode` are session…
Hooks reference
Claude Code CLI · in the page
hooks
…model supports, this is the downgraded level the model actually used. Ultracode is not a distinct level and reports as `"xhigh"`. The object matches the [status line](/docs/en/statusline#available-dat…
Model configuration
Claude Code CLI · in the page
model-config
…o pass `--effort` at launch instead. The `/effort` menu also offers `ultracode`. Ultracode is a Claude Code setting rather than a model effort level: it sends `xhigh` to the model and additionally ha…
Claude Code settings
Claude Code CLI · in the page
settings
…| | `ultracode` | Turn on [ultracode](/docs/en/workflows#let-claude-decide-with-ultracode) for the current sessi…
Claude Code settings reference
Claude Code CLI · in the page
settings-reference
…| Interface and terminal | Any file | | [`ultracode`](#ultracode) | Have Claude plan a [workflow](/doc…
Extend Claude with skills
Claude Code CLI · in the page
skills
…The current effort level: `low`, `medium`, `high`, `xhigh`, or `max`. Ultracode is not a distinct level and reports as `xhigh`. Use this to adapt skill instructions to the active effort setting.…
Customize your status line
Claude Code CLI · in the page
statusline
…ects the live session value, including mid-session `/effort` changes. Ultracode is not a distinct level and reports as `xhigh`. Absent when the current model does not support the effort parameter…
Create custom subagents
Claude Code CLI · in the page
sub-agents
…NTS`](/docs/en/env-vars) to any positive whole number. Sessions with [ultracode](/docs/en/model-config#adjust-effort-level) active are exempt: the limit isn't enforced there. Requires Claude Code v2.1…
Week 23 · June 1–5, 2026
Claude Code CLI · in the page
whats-new/2026-w23
…ws">dynamic workflows</a> changed from <code>workflow</code> to <code>ultracode</code>; asking for a workflow in your own words still works, and the keyword is highlighted in violet in the prompt</div…
Orchestrate subagents at scale with dynamic workflows
Claude Code CLI · in the page
workflows
…in your prompt, either in your own words or by including the keyword `ultracode`, and Claude writes one for the task. * [Let Claude decide with ultracode](#let-claude-decide-with-ultracode): set `/eff…
Changelog
Claude Documentation · in the page
cowork/changelog
…or inline and block expressions in Claude Code transcripts. * Added Ultracode to the effort slider, which selects the highest effort level and turns on dynamic workflows for the session. * Added d…