Reference for OS notification configuration. Auto-loads when notifications are enabled (session_init reports notifications active). Also triggered by: 'mute', 'unmute', 'notify', 'notification settings', '/notify', 'notification', 'audio feedback'.
Installation
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Reference for OS notification configuration. Auto-loads when notifications are enabled (session_init reports notifications active). Also triggered by: 'mute', 'unmute', 'notify', 'notification settings', '/notify', 'notification', 'audio feedback'.
Quick-reference for configuring OS notification feedback on long-running tool completions.
Did I use the correct MCP tool (session vs config) for the desired scope (temporary vs persistent)?
Notification Configuration
Invariant Principles
Session vs Config Scope - Use notify_session_set for temporary overrides (current session only); use notify_config_set for persistent changes across sessions.
Hooks and MCP Are Independent - PostToolUse hooks are controlled by environment variables; notify_session_set/notify_config_set only affect MCP tool behavior.
Interactive Tools Are Excluded - Notifications never fire for interactive or management tools (AskUserQuestion, TodoRead, TodoWrite, Task tools) regardless of duration.
Spellbook provides native OS notifications on long-running tool completions. They auto-trigger via PostToolUse hooks when tools exceed 30 seconds (configurable).
OS Notifications
Uses macOS Notification Center, Linux notify-send, or Windows toast. Threshold: SPELLBOOK_NOTIFY_THRESHOLD. Scope:notify_session_set and notify_config_set only affect MCP tool behavior (notify_send). PostToolUse hooks are separately controlled by SPELLBOOK_NOTIFY_ENABLED env var.
