ultraplan
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.
Remote session creation events accept a proactivityLevel field alongside permissionMode, ultraplan, title and thinking.
Not Anthropic's. This is the line from the earliest changelog entry here that named it, v2.1.259.
In the changelogs
6Releases whose published page names ultraplan.
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v2.1.300
The ultraplan keyword path now receives the text of your submitted prompt
When a submitted prompt triggers the ultraplan keyword, Claude Code now hands that path your held prompt text and its current line
named in this entry
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v2.1.269
New permission-policy name mapping for remote-control/ultraplan/claude-in-chrome
Remote control, Ultraplan, and Claude-in-Chrome now map to named permission policies
found in this entry's text
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v2.1.259
New proactivityLevel parameter threaded into remote/teleport session creation
Remote session creation events accept a proactivityLevel field alongside permissionMode, ultraplan, title and thinking.
found in this entry's text
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v2.1.69
Ultraplan
found in this entry's text
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v2.1.66
Ultraplan Mode Removed
found in this entry's text
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v2.1.64
Ultraplan Mode
found in this entry's text
First cited
0No 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
0The 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.