9 pages for subagentstop.
Titles and paths first, then pages whose text carries it. Each row opens that page as this site last read it.
How the agent loop works
Claude Code CLI · in the page
agent-sdk/agent-loop
…shes | Validate the result, save session state | | `SubagentStart` / `SubagentStop` | When a subagent spawns or completes | Track and aggregate parallel task results | | `PreCompact` | Before context…
Intercept and control agent behavior with hooks
Claude Code CLI · in the page
agent-sdk/hooks
…s | Yes | Subagent initialization | Track parallel task spawning | | `SubagentStop` | Yes | Yes | Subagent completion | Aggregate results from parallel tasks | | `PreCompact` | Yes | Yes | Conversatio…
Agent SDK reference - Python
Claude Code CLI · in the page
agent-sdk/python
…rompt is submitted "Stop", # Called when stopping execution "SubagentStop", # Called when a subagent stops "PreCompact", # Called before message compaction "Notification", # Called…
Agent SDK reference - TypeScript
Claude Code CLI · in the page
agent-sdk/typescript
…| "SessionEnd" | "Stop" | "StopFailure" | "SubagentStart" | "SubagentStop" | "PreCompact" | "PostCompact" | "PreModelSwitch" | "PostModelSwitch" | "PermissionRequest" | "Permissio…
Claude Code changelog
Claude Code CLI · in the page
changelog
…wing what they should block * Improved how `prompt` hooks on Stop and SubagentStop written as instructions (such as "Carry on if the build is broken") are judged, so Claude is less likely to stop earl…
Hooks reference
Claude Code CLI · in the page
hooks
…xt is displayed | | `SubagentStart` | When a subagent is spawned | | `SubagentStop` | When a subagent finishes | | `TaskCreated` | When a task is being created via `TaskCreate` | | `TaskCompleted` | W…
Automate actions with hooks
Claude Code CLI · in the page
hooks-guide
…xt is displayed | | `SubagentStart` | When a subagent is spawned | | `SubagentStop` | When a subagent finishes | | `TaskCreated` | When a task is being created via `TaskCreate` | | `TaskCompleted` | W…
Create custom subagents
Claude Code CLI · in the page
sub-agents
…e same way they do in the main conversation, and `SubagentStart` and `SubagentStop` fire when a subagent starts or finishes Hooks from [settings files, managed policy settings, and plugins](/docs/en/…
Week 23 · June 1–5, 2026
Claude Code CLI · in the page
whats-new/2026-w23
…orks, and the keyword is highlighted in violet in the prompt[Stop and SubagentStop hooks](/docs/en/hooks.md) can return `hookSpecificOutput.additionalContext` to give Claude feedback and keep the turn…