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Automation
Hook

Hooks

What orchestrator runs automatically, and when. A hook is a command Claude Code fires at a fixed moment, without you asking for it.

From plugin
orchestrator
791 skill4 hooks

Claude Code

> /plugin marketplace add rylaa/fable5-opus5.5-orchestrator
> /plugin install orchestrator@fable-orchestrator

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.

  • python3 "${CLAUDE_PLUGIN_ROOT}/scripts/inject_instructions.py"

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.

  • python3 "${CLAUDE_PLUGIN_ROOT}/scripts/remind_chair.py"

PreToolUse

  • Matches^(Agent|Task|Edit|Write|MultiEdit|NotebookEdit)$python3 "${CLAUDE_PLUGIN_ROOT}/scripts/solo_guard.py"

SessionEnd

  • python3 "${CLAUDE_PLUGIN_ROOT}/scripts/cleanup_session_cache.py"
Read hooks/hooks.json
@rylaa
Ships withorchestrator

Run Claude Fable 5 all day — without watching the usage meter. Fable 5 is the best chair a Claude Code session can have, and the most expensive seat in the house. Let it type every token itself and the session ends rate-limited, waiting out the reset window.

Stars on GitHub

Momentum

stars in total
79
Star history of Rylaa/fable5-opus5-orchestrator on GitHub, a chart by star-history.com

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Questions about the hooks in orchestrator.

Which coding agents can use the hooks in orchestrator?
The hooks in orchestrator install in Claude Code and Cursor: each runs Claude Code hooks from .claude/settings.json, so copy the hooks there.