Hooks
What ultan runs automatically, and when. A hook is a command Claude Code fires at a fixed moment, without you asking for it.
$ npx -y skills add nickroci/ultan --agent claude-codeShips with ultan. Installing the plugin gets these hooks.
What fires, and when
SessionStart
Fires once when a session begins, and again after a context compaction. It is where a plugin sets up its environment, or restores state the compaction dropped.
- Runs ensure-ultan.sh".
UserPromptSubmit
Fires before Claude sees each prompt you send. A plugin can use it to inject context, so the same instruction reaches the model every turn instead of only at session start.
- Runs true.
PreToolUse
- Runs true.
Stop
- Runs true.
PreCompact
- Runs true.
SessionEnd
- Runs true.
Ultan is a neuroscience-inspired, agentic memory system for Claude Code — a layered architecture that learns your preferences and coding conventions and recalls them across every session, project, and machine.