11 pages for hookspecificoutput.

Use Claude Code features in the SDK Claude Code CLI · in the page agent-sdk/claude-code-features …g `{}` means allow the tool to proceed. To block execution, return a `hookSpecificOutput` object with `permissionDecision: "deny"` and a `permissionDecisionReason`. The reason is sent to Claude as the… Intercept and control agent behavior with hooks Claude Code CLI · in the page agent-sdk/hooks …ile if file_name.lower() == ".env": return { "hookSpecificOutput": { "hookEventName": input_data["hook_event_name"], "permissionDecision": "deny… Agent SDK reference - Python Claude Code CLI · in the page agent-sdk/python …tRequired[str] # Feedback for Claude # Hook-specific output hookSpecificOutput: NotRequired[HookSpecificOutput] ``` > [!NOTE] > > Use `continue_` (with underscore) in Python code. It is aut… Agent SDK reference - TypeScript Claude Code CLI · in the page agent-sdk/typescript …es the field. */ terminalSequence?: string; reason?: string; hookSpecificOutput?: | { hookEventName: "PreToolUse"; permissionDecision?: "allow" | "deny" | "ask" | "defer";… Explore the context window Claude Code CLI · in the page context-window …tings.json` runs prettier after every file edit and reports back via `hookSpecificOutput.additionalContext`. That field enters Claude\'s context. Plain stdout on exit 0 does not. It is written to the… Manage costs effectively Claude Code CLI · in the page costs …ead -100" echo "$input" | jq --arg filtered "$filtered_cmd" \ '{hookSpecificOutput: {hookEventName: "PreToolUse", updatedInput: (.tool_input + {command: $filtered})}}' else echo "{}" fi ``` T… Hooks reference Claude Code CLI · in the page hooks …tool call, including denials without a classifier verdict. Use JSON `hookSpecificOutput.retry: true` to tell the model it may retry the denied tool call. Claude Code ignores `retry` when the classifi… Automate actions with hooks Claude Code CLI · in the page hooks-guide …{ "type": "command", "command": "echo '{\"hookSpecificOutput\": {\"hookEventName\": \"PermissionRequest\", \"decision\": {\"behavior\": \"allow\"}}}'" } ]… Week 15 · April 6–10, 2026 Claude Code CLI · in the page whats-new/2026-w15 …ompt correctly`UserPromptSubmit` hooks can set the session title via `hookSpecificOutput.sessionTitle` [Full changelog for v2.1.92–v2.1.101 →](/docs/en/changelog#2-1-92) Week 18 · April 27 – May 1, 2026 Claude Code CLI · in the page whats-new/2026-w18 …crolling`PostToolUse` hooks can replace tool output for any tool via `hookSpecificOutput.updatedToolOutput`, not only MCP toolsNew [`claude ultrareview`](/docs/en/ultrareview) subcommand runs `/ultrar… Week 23 · June 1–5, 2026 Claude Code CLI · in the page whats-new/2026-w23 …n the prompt[Stop and SubagentStop hooks](/docs/en/hooks) can return `hookSpecificOutput.additionalContext` to give Claude feedback and keep the turn going instead of being treated as an error`claude…