SessionStart
01Hook
Runs when a session starts, running bar-hook SessionStart. From bar181/bar-observatory.
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28Mods indexed here, across every type
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SessionEnd
02Hook
Runs when a session ends, running bar-hook SessionEnd. From bar181/bar-observatory.
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Hook
Runs when you submit a prompt, before the agent sees it, running bar-hook UserPromptSubmit. From bar181/bar-observatory.
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copy · 86% MIT
PreToolUse
04Hook
Runs before the agent uses a tool, running bar-hook PreToolUse. From bar181/bar-observatory.
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PostToolUse
05Hook
Runs after a tool call finishes, running bar-hook PostToolUse. From bar181/bar-observatory.
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Hook
Runs when a tool call fails, running bar-hook PostToolUseFailure. From bar181/bar-observatory.
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Hook
Runs when the agent asks permission for an action, running bar-hook PermissionRequest. From bar181/bar-observatory.
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Hook
Runs on the PermissionDenied event, running bar-hook PermissionDenied. From bar181/bar-observatory.
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Hook
Runs when a subagent starts, running bar-hook SubagentStart. From bar181/bar-observatory.
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SubagentStop
10Hook
Runs when a subagent finishes, running bar-hook SubagentStop. From bar181/bar-observatory.
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PreCompact
11Hook
Runs before the context is compacted, running bar-hook PreCompact. From bar181/bar-observatory.
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PostCompact
12Hook
Runs after the context is compacted, running bar-hook PostCompact. From bar181/bar-observatory.
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Notification
13Hook
Runs when the agent sends a notification, running bar-hook Notification. From bar181/bar-observatory.
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Stop
14Hook
Runs when the agent finishes a response, running bar-hook Stop. From bar181/bar-observatory.
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StopFailure
15Hook
Runs on the StopFailure event, running bar-hook StopFailure. From bar181/bar-observatory.
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Hook
Runs to expand your prompt before the agent sees it, running bar-hook UserPromptExpansion. From bar181/bar-observatory.
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Hook
Runs after a batch of tool calls, running bar-hook PostToolBatch. From bar181/bar-observatory.
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TaskCreated
18Hook
Runs on the TaskCreated event, running bar-hook TaskCreated. From bar181/bar-observatory.
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Hook
Runs when a task is marked completed, running bar-hook TaskCompleted. From bar181/bar-observatory.
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Hook
Runs after instructions files are loaded, running bar-hook InstructionsLoaded. From bar181/bar-observatory.
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ConfigChange
21Hook
Runs on the ConfigChange event, running bar-hook ConfigChange. From bar181/bar-observatory.
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