Qwen Code Hooks

{
  "disableAllHooks": true,
  "hooks": {
    "PreToolUse": [...]
  }
}

{
  "hooks": {
    "PreToolUse": [
      {
        "matcher": "write_file",
        "hooks": [
          {
            "type": "command",
            "command": "$QWEN_PROJECT_DIR/.qwen/hooks/security-check.sh",
            "name": "security-check",
            "timeout": 10000
          }
        ]
      }
    ]
  }
}

{
  "security": {
    "allowPrivateNetworkHooks": true
  }
}

{
  "hooks": {
    "PreToolUse": [
      {
        "matcher": "*",
        "hooks": [
          {
            "type": "http",
            "url": "http://127.0.0.1:8080/hooks/pre-tool-use",
            "headers": {
              "Authorization": "Bearer ${HOOK_API_KEY}"
            },
            "allowedEnvVars": ["HOOK_API_KEY"],
            "timeout": 10,
            "name": "remote-security-check"
          }
        ]
      }
    ]
  }
}

#!/usr/bin/env python3
# judgment_hook.py -- run: JUDGMENT_API_KEY=... python3 judgment_hook.py
import json, os, sys, urllib.request
from http.server import BaseHTTPRequestHandler, HTTPServer
 
JUDGMENT_API_KEY = os.environ["JUDGMENT_API_KEY"]
JUDGMENT_URL = os.environ.get("JUDGMENT_URL", "https://api.babyblueviper.com/review")
 
def review(tool_name, tool_input):
    """POST the call to the judgment backend and return its verdict. This is the
    one function to change for a different backend -- request/response shape
    below matches invinoveritas's /review; adapt both to your own backend's
    contract if you swap it out."""
    body = json.dumps({
        "artifact": json.dumps({"tool_name": tool_name, "tool_input": tool_input}),
        "artifact_type": "shell_command" if tool_name in ("run_shell_command", "shell") else "general",
        "context": f"qwen-code PreToolUse: {tool_name}",
    }).encode()
    req = urllib.request.Request(
        JUDGMENT_URL, data=body,
        headers={"Authorization": f"Bearer {JUDGMENT_API_KEY}", "Content-Type": "application/json"},
    )
    # Keep this below the HTTP hook's own timeout (10s in the config above), so a "deny"
    # verdict is always returned before the hook gives up and fails open on its own.
    with urllib.request.urlopen(req, timeout=8) as resp:
        return json.loads(resp.read())  # response includes a "verdict" field: "reject" denies, anything else allows
 
class Handler(BaseHTTPRequestHandler):
    def do_POST(self):
        payload = json.loads(self.rfile.read(int(self.headers.get("Content-Length", 0))) or b"{}")
        tool_name, tool_input = payload.get("tool_name", "unknown"), payload.get("tool_input", {})
        try:
            verdict = review(tool_name, tool_input)
            decision = "deny" if verdict.get("verdict") == "reject" else "allow"
            reason = verdict.get("summary", f"judgment verdict: {verdict.get('verdict')}")
        except Exception as e:
            decision, reason = "allow", "judgment backend unavailable, failing open"  # never block on a review-side outage
            print(f"judgment backend unavailable for {tool_name}, failing open: {e}", file=sys.stderr)
        out = {"continue": True, "decision": decision, "hookSpecificOutput": {
            "hookEventName": "PreToolUse", "permissionDecision": decision, "permissionDecisionReason": reason,
        }}
        body = json.dumps(out).encode()
        self.send_response(200)
        self.send_header("Content-Type", "application/json")
        self.send_header("Content-Length", str(len(body)))
        self.end_headers()
        self.wfile.write(body)
    def log_message(self, *a): pass
 
if __name__ == "__main__":
    HTTPServer(("127.0.0.1", 8080), Handler).serve_forever()

{
  "ok": true,
  "reason": "Explanation of the decision",
  "additionalContext": "Optional context to inject into the conversation"
}

{
  "hooks": {
    "Stop": [
      {
        "hooks": [
          {
            "type": "prompt",
            "prompt": "You are evaluating whether Qwen Code should stop working. Context: $ARGUMENTS\n\nAnalyze the conversation and determine if:\n1. All user-requested tasks are complete\n2. Any errors need to be addressed\n3. Follow-up work is needed\n\nRespond with JSON: {\"ok\": true} to allow stopping, or {\"ok\": false, \"reason\": \"your explanation\"} to continue working.",
            "timeout": 30
          }
        ]
      }
    ]
  }
}

{
  "hooks": {
    "PreToolUse": [
      {
        "matcher": "run_shell_command",
        "hooks": [
          {
            "type": "prompt",
            "prompt": "Evaluate this tool call for security concerns. Tool input: $ARGUMENTS\n\nCheck for:\n- Dangerous commands (rm -rf, curl | sh, etc.)\n- Unauthorized access attempts\n- Data exfiltration patterns\n\nRespond with {\"ok\": true} if safe, or {\"ok\": false, \"reason\": \"concern\"} if blocked.",
            "model": "sonnet",
            "timeout": 30,
            "name": "security-evaluator"
          }
        ]
      }
    ]
  }
}

{
  "hooks": {
    "PreToolUse": [
      {
        "matcher": "^run_shell_command$",
        "hooks": [
          {
            "type": "command",
            "command": "echo 'bash check' >> /tmp/hooks.log"
          }
        ]
      },
      {
        "matcher": "write_.*",
        "hooks": [
          {
            "type": "command",
            "command": "echo 'write check' >> /tmp/hooks.log"
          }
        ]
      },
      {
        "matcher": "*",
        "hooks": [
          { "type": "command", "command": "echo 'all tools' >> /tmp/hooks.log" }
        ]
      }
    ],
    "SubagentStart": [
      {
        "matcher": "^(Bash|Explorer)$",
        "hooks": [
          {
            "type": "command",
            "command": "echo 'subagent check' >> /tmp/hooks.log"
          }
        ]
      }
    ]
  }
}

{
  "session_id": "string",
  "transcript_path": "string",
  "cwd": "string",
  "hook_event_name": "string",
  "timestamp": "string"
}

{
  "continue": true,
  "decision": "allow",
  "reason": "Operation approved",
  "hookSpecificOutput": {
    "hookEventName": "PreToolUse",
    "additionalContext": "Additional context information"
  }
}

{
  "permission_mode": "default | plan | auto_edit | yolo",
  "tool_name": "name of the tool being executed",
  "tool_input": "object containing the tool's input parameters",
  "tool_use_id": "unique identifier for this tool use instance (internal format, e.g., toolu_xxx)",
  "tool_call_id": "original API call ID from the LLM provider (e.g., call_xxx for OpenAI/Qwen) (optional)"
}

{
  "hookSpecificOutput": {
    "hookEventName": "PreToolUse",
    "permissionDecision": "deny",
    "permissionDecisionReason": "Security policy blocks database writes",
    "additionalContext": "Current environment: production. Proceed with caution."
  }
}

{
  "permission_mode": "default | plan | auto_edit | yolo",
  "tool_name": "name of the tool that was executed",
  "tool_input": "object containing the tool's input parameters",
  "tool_response": "object containing the tool's response",
  "tool_use_id": "unique identifier for this tool use instance (internal format, e.g., toolu_xxx)",
  "tool_call_id": "original API call ID from the LLM provider (e.g., call_xxx for OpenAI/Qwen) (optional)"
}

{
  "decision": "allow",
  "reason": "Tool executed successfully",
  "hookSpecificOutput": {
    "additionalContext": "File modification recorded in audit log"
  }
}

{
  "permission_mode": "default | plan | auto_edit | yolo",
  "tool_use_id": "unique identifier for the tool use (internal format, e.g., toolu_xxx)",
  "tool_call_id": "original API call ID from the LLM provider (e.g., call_xxx for OpenAI/Qwen) (optional)",
  "tool_name": "name of the tool that failed",
  "tool_input": "object containing the tool's input parameters",
  "error": "error message describing the failure",
  "is_interrupt": "boolean indicating if failure was due to user interruption (optional)"
}

{
  "hookSpecificOutput": {
    "additionalContext": "Error: File not found. Failure logged in monitoring system."
  }
}

{
  "prompt": "current model-bound prompt for this hook invocation",
  "submitted_prompt": "optional user text captured at a supported interactive TUI submission boundary"
}

<qwen:user-prompt-submit-context>
sanitized hook context
</qwen:user-prompt-submit-context>

{
  "displayText": "pre-hook display projection",
  "hookContext": "sanitized hook context"
}

{
  "decision": "allow",
  "reason": "Prompt reviewed and approved",
  "hookSpecificOutput": {
    "additionalContext": "Remember to follow company coding standards."
  }
}

{
  "permission_mode": "default | plan | auto_edit | yolo",
  "source": "startup | resume | clear | compact",
  "model": "the model being used",
  "agent_type": "the type of agent if applicable (optional)"
}

{
  "hookSpecificOutput": {
    "additionalContext": "Session started with security policies enabled."
  }
}

{
  "reason": "clear | logout | prompt_input_exit | bypass_permissions_disabled | other"
}

{
  "deleted_session_id": "the session that was deleted"
}

{
  "message_id": "stable id for the whole streamed message",
  "displayed_text": "the CUMULATIVE text streamed so far for this message (not a delta)",
  "is_final": "true on the last firing for this message, false otherwise"
}

{
  "stop_hook_active": "boolean indicating if stop hook is active",
  "last_assistant_message": "the last message from the assistant",
  "context_usage": "ratio of context window used (may exceed 1 when tokens exceed window; optional)",
  "context_limit": "context window size in tokens (optional)",
  "input_tokens": "prompt token count (may include output tokens depending on provider; optional)"
}

{
  "decision": "block",
  "reason": "Must be provided when Qwen Code is blocked from stopping"
}

{
  "error": "rate_limit | authentication_failed | billing_error | invalid_request | server_error | max_output_tokens | loop_detected | unknown",
  "error_details": "detailed error message (optional)",
  "last_assistant_message": "the last message from the assistant before the error (optional)"
}

{
  "hooks": {
    "StopFailure": [
      {
        "matcher": "rate_limit",
        "hooks": [
          {
            "type": "command",
            "command": "/path/to/rate-limit-alert.sh",
            "name": "rate-limit-alerter"
          }
        ]
      }
    ]
  }
}

{
  "permission_mode": "default | plan | auto_edit | yolo",
  "agent_id": "identifier for the subagent",
  "agent_type": "type of agent (Bash, Explorer, Plan, Custom, etc.)"
}

{
  "hookSpecificOutput": {
    "additionalContext": "Subagent initialized with restricted permissions."
  }
}

{
  "permission_mode": "default | plan | auto_edit | yolo",
  "stop_hook_active": "boolean indicating if stop hook is active",
  "agent_id": "identifier for the subagent",
  "agent_type": "type of agent",
  "agent_transcript_path": "path to the subagent's transcript",
  "last_assistant_message": "the last message from the subagent"
}

{
  "decision": "block",
  "reason": "Must be provided when Qwen Code is blocked from stopping"
}

{
  "trigger": "manual | auto",
  "custom_instructions": "custom instructions currently set"
}

{
  "hookSpecificOutput": {
    "additionalContext": "Compacting conversation to maintain optimal context window."
  }
}

{
  "trigger": "manual | auto",
  "compact_summary": "the summary generated by the compaction process"
}

{
  "hooks": {
    "PostCompact": [
      {
        "matcher": "manual",
        "hooks": [
          {
            "type": "command",
            "command": "/path/to/save-compact-summary.sh",
            "name": "save-summary"
          }
        ]
      }
    ]
  }
}

{
  "message": "notification message content",
  "title": "notification title (optional)",
  "notification_type": "permission_prompt | idle_prompt | auth_success"
}

{
  "hookSpecificOutput": {
    "additionalContext": "Notification processed by monitoring system."
  }
}

{
  "permission_mode": "default | plan | auto_edit | yolo",
  "tool_name": "name of the tool requesting permission",
  "tool_input": "object containing the tool's input parameters",
  "permission_suggestions": "array of suggested permissions (optional)"
}

{
  "hookSpecificOutput": {
    "decision": {
      "behavior": "allow",
      "message": "Permission granted based on security policy",
      "interrupt": false
    }
  }
}

{
  "todo_id": "unique identifier for the todo item",
  "todo_content": "content/description of the todo item",
  "todo_status": "pending | in_progress | completed",
  "all_todos": "array of all todo items in the current list",
  "phase": "validation | postWrite"
}

{
  "decision": "allow",
  "reason": "Todo content validated successfully"
}

{
  "decision": "block",
  "reason": "Todo content too short. Minimum 5 characters required."
}

#!/bin/bash
# ~/.qwen/hooks/todo-validator.sh
# Validates todo content before creation
 
INPUT=$(cat)
CONTENT=$(echo "$INPUT" | jq -r '.todo_content')
 
# Check minimum length
if [ ${#CONTENT} -lt 5 ]; then
  echo '{"decision": "block", "reason": "Todo content must be at least 5 characters"}'
  exit 2
fi
 
# Block test-related todos
if [[ "$CONTENT" =~ "test" ]]; then
  echo '{"decision": "block", "reason": "Test todos are not allowed in production"}'
  exit 2
fi
 
echo '{"decision": "allow"}'
exit 0

{
  "hooks": {
    "TodoCreated": [
      {
        "hooks": [
          {
            "type": "command",
            "command": "$HOME/.qwen/hooks/todo-validator.sh",
            "name": "todo-validator",
            "timeout": 5000
          }
        ]
      }
    ]
  }
}

{
  "todo_id": "unique identifier for the todo item",
  "todo_content": "content/description of the todo item",
  "previous_status": "pending | in_progress (status before completion)",
  "all_todos": "array of all todo items in the current list",
  "phase": "validation | postWrite"
}

{
  "decision": "allow",
  "reason": "Todo completion approved"
}

{
  "decision": "block",
  "reason": "Cannot complete this todo until dependent tasks are finished."
}

#!/bin/bash
# ~/.qwen/hooks/todo-completion-validator.sh
# Validates todo completion conditions
 
INPUT=$(cat)
TODO_ID=$(echo "$INPUT" | jq -r '.todo_id')
ALL_TODOS=$(echo "$INPUT" | jq -r '.all_todos')
 
# Check if there are incomplete dependent todos (example logic)
INCOMPLETE_COUNT=$(echo "$ALL_TODOS" | jq '[.[] | select(.status != "completed")] | length')
 
if [ "$INCOMPLETE_COUNT" -gt 5 ]; then
  echo '{"decision": "block", "reason": "Too many incomplete todos. Complete other tasks first."}'
  exit 2
fi
 
echo '{"decision": "allow"}'
exit 0

{
  "hooks": {
    "TodoCompleted": [
      {
        "hooks": [
          {
            "type": "command",
            "command": "$HOME/.qwen/hooks/todo-completion-validator.sh",
            "name": "completion-validator",
            "timeout": 5000
          }
        ]
      }
    ]
  }
}

{
  "hooks": {
    "PreToolUse": [
      {
        "matcher": "^run_shell_command$",
        "sequential": false,
        "hooks": [
          {
            "type": "command",
            "command": "/path/to/security-check.sh",
            "name": "security-check",
            "description": "Run security checks before tool execution",
            "timeout": 30000
          }
        ]
      }
    ],
    "SessionStart": [
      {
        "hooks": [
          {
            "type": "command",
            "command": "echo 'Session started'",
            "name": "session-init"
          }
        ]
      }
    ]
  }
}

{
  "hooks": {
    "PostToolUse": [
      {
        "matcher": "write_file|edit",
        "hooks": [
          {
            "type": "command",
            "command": "$QWEN_PROJECT_DIR/.qwen/hooks/run-tests-async.sh",
            "async": true,
            "timeout": 300000
          }
        ]
      }
    ]
  }
}

#!/bin/bash
INPUT=$(cat)
FILE_PATH=$(echo "$INPUT" | jq -r '.tool_input.file_path // empty')
if [[ "$FILE_PATH" != *.ts && "$FILE_PATH" != *.js ]]; then exit 0; fi
RESULT=$(npm test 2>&1)
if [ $? -eq 0 ]; then
  echo "{\"systemMessage\": \"Tests passed after editing $FILE_PATH\"}"
else
  echo "{\"systemMessage\": \"Tests failed: $RESULT\"}"
fi

#!/bin/bash
 
# Read input from stdin
INPUT=$(cat)
 
# Parse the input to extract tool info
TOOL_NAME=$(echo "$INPUT" | jq -r '.tool_name')
TOOL_INPUT=$(echo "$INPUT" | jq -r '.tool_input')
 
# Check for potentially dangerous operations
if echo "$TOOL_INPUT" | grep -qiE "(rm.*-rf|mv.*\/|chmod.*777)"; then
  echo '{
    "hookSpecificOutput": {
      "hookEventName": "PreToolUse",
      "permissionDecision": "deny",
      "permissionDecisionReason": "Security policy blocks dangerous command"
    }
  }'
  exit 2  # Blocking error
fi
 
# Log the operation
echo "INFO: Tool $TOOL_NAME executed safely at $(date)" >> /var/log/qwen-security.log
 
# Allow with additional context
echo '{
  "hookSpecificOutput": {
    "hookEventName": "PreToolUse",
    "permissionDecision": "allow",
    "permissionDecisionReason": "Security check passed",
    "additionalContext": "Command approved by security policy"
  }
}'
exit 0

{
  "hooks": {
    "PreToolUse": [
      {
        "hooks": [
          {
            "type": "command",
            "command": "${SECURITY_CHECK_SCRIPT}",
            "name": "security-checker",
            "description": "Security validation for bash commands",
            "timeout": 10000
          }
        ]
      }
    ]
  }
}

{
  "hooks": {
    "PostToolUse": [
      {
        "matcher": "*",
        "hooks": [
          {
            "type": "http",
            "url": "https://audit.example.com/api/tool-execution",
            "headers": {
              "Authorization": "Bearer ${AUDIT_API_TOKEN}",
              "Content-Type": "application/json"
            },
            "allowedEnvVars": ["AUDIT_API_TOKEN"],
            "timeout": 10,
            "name": "audit-logger"
          }
        ]
      }
    ]
  }
}

import json
import sys
import re
 
# Load input from stdin
try:
    input_data = json.load(sys.stdin)
except json.JSONDecodeError as e:
    print(f"Error: Invalid JSON input: {e}", file=sys.stderr)
    sys.exit(1)
 
user_prompt = input_data.get("submitted_prompt")
if user_prompt is None:
    # Do not mistake model-bound or machine-generated content for raw input.
    sys.exit(0)
 
# Sensitive words list
sensitive_words = ["password", "secret", "token", "api_key"]
 
# Check for sensitive information
for word in sensitive_words:
    if re.search(rf"\b{word}\b", user_prompt.lower()):
        # Block prompts containing sensitive information
        output = {
            "decision": "block",
            "reason": f"Prompt contains sensitive information '{word}'. Please remove sensitive content and resubmit.",
            "hookSpecificOutput": {
                "hookEventName": "UserPromptSubmit"
            }
        }
        print(json.dumps(output))
        sys.exit(0)
 
# Check prompt length and add warning context if too long
if len(user_prompt) > 1000:
    output = {
        "hookSpecificOutput": {
            "hookEventName": "UserPromptSubmit",
            "additionalContext": "Note: User submitted a long prompt. Please read carefully and ensure all requirements are understood."
        }
    }
    print(json.dumps(output))
    sys.exit(0)
 
# No processing needed for normal cases
sys.exit(0)