Migration

{
  "PreToolUse": [
    {
      "matcher": "Bash",
      "hooks": [
        {
          "type": "command",
          "command": "bash validate-bash.sh"
        }
      ]
    }
  ]
}

#!/bin/bash
input=$(cat)
command=$(echo "$input" | jq -r '.tool_input.command')

# Hard-coded validation logic
if [[ "$command" == *"rm -rf"* ]]; then
  echo "Dangerous command detected" >&2
  exit 2
fi

{
  "PreToolUse": [
    {
      "matcher": "Bash",
      "hooks": [
        {
          "type": "prompt",
          "prompt": "Command: $TOOL_INPUT.command. Analyze for: 1) Destructive operations (rm -rf, dd, mkfs, etc) 2) Privilege escalation (sudo) 3) Network operations without user consent. Return 'approve' or 'deny' with explanation.",
          "timeout": 15
        }
      ]
    }
  ]
}

{
  "PreToolUse": [
    {
      "matcher": "Write",
      "hooks": [
        {
          "type": "command",
          "command": "bash validate-write.sh"
        }
      ]
    }
  ]
}

#!/bin/bash
input=$(cat)
file_path=$(echo "$input" | jq -r '.tool_input.file_path')

# Check for path traversal
if [[ "$file_path" == *".."* ]]; then
  echo '{"decision": "deny", "reason": "Path traversal detected"}' >&2
  exit 2
fi

# Check for system paths
if [[ "$file_path" == "/etc/"* ]] || [[ "$file_path" == "/sys/"* ]]; then
  echo '{"decision": "deny", "reason": "System file"}' >&2
  exit 2
fi

{
  "PreToolUse": [
    {
      "matcher": "Write|Edit",
      "hooks": [
        {
          "type": "prompt",
          "prompt": "File path: $TOOL_INPUT.file_path. Content preview: $TOOL_INPUT.content (first 200 chars). Verify: 1) Not system directories (/etc, /sys, /usr) 2) Not credentials (.env, tokens, secrets) 3) No path traversal 4) Content doesn't expose secrets. Return 'approve' or 'deny'."
        }
      ]
    }
  ]
}

#!/bin/bash
# Check file size quickly
file_path=$(echo "$input" | jq -r '.tool_input.file_path')
size=$(stat -f%z "$file_path" 2>/dev/null || stat -c%s "$file_path" 2>/dev/null)

if [ "$size" -gt 10000000 ]; then
  echo '{"decision": "deny", "reason": "File too large"}' >&2
  exit 2
fi

#!/bin/bash
# Run security scanner
file_path=$(echo "$input" | jq -r '.tool_input.file_path')
scan_result=$(security-scanner "$file_path")

if [ "$?" -ne 0 ]; then
  echo "Security scan failed: $scan_result" >&2
  exit 2
fi

#!/bin/bash
# Quick regex check
command=$(echo "$input" | jq -r '.tool_input.command')

if [[ "$command" =~ ^(ls|pwd|echo)$ ]]; then
  exit 0  # Safe commands
fi

{
  "PreToolUse": [
    {
      "matcher": "Bash",
      "hooks": [
        {
          "type": "command",
          "command": "bash ${CLAUDE_PLUGIN_ROOT}/scripts/quick-check.sh",
          "timeout": 5
        },
        {
          "type": "prompt",
          "prompt": "Deep analysis of bash command: $TOOL_INPUT",
          "timeout": 15
        }
      ]
    }
  ]
}

my-plugin/
├── .claude-plugin/plugin.json
├── hooks/hooks.json
└── scripts/
    ├── validate-bash.sh
    ├── validate-write.sh
    └── check-tests.sh

my-plugin/
├── .claude-plugin/plugin.json
├── hooks/hooks.json      # Now uses prompt hooks
└── scripts/              # Archive or delete
    └── archive/
        ├── validate-bash.sh
        ├── validate-write.sh
        └── check-tests.sh

{
  "PreToolUse": [
    {
      "matcher": "Bash",
      "hooks": [
        {
          "type": "prompt",
          "prompt": "Validate bash command safety: destructive ops, privilege escalation, network access"
        }
      ]
    },
    {
      "matcher": "Write|Edit",
      "hooks": [
        {
          "type": "prompt",
          "prompt": "Validate file write safety: system paths, credentials, path traversal, content secrets"
        }
      ]
    }
  ],
  "Stop": [
    {
      "matcher": "*",
      "hooks": [
        {
          "type": "prompt",
          "prompt": "Verify tests were run if code was modified"
        }
      ]
    }
  ]
}

if [[ "$command" == *"sudo"* ]]; then
  echo "Privilege escalation" >&2
  exit 2
fi

"Check for privilege escalation (sudo, su, etc)"

if [[ "$file" =~ \.(env|secret|key|token)$ ]]; then
  echo "Credential file" >&2
  exit 2
fi

"Verify not writing to credential files (.env, secrets, keys, tokens)"

if [ condition1 ] || [ condition2 ] || [ condition3 ]; then
  echo "Invalid" >&2
  exit 2
fi

"Check: 1) condition1 2) condition2 3) condition3. Deny if any fail."