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#!/bin/bash
# Hook script to log MCP-related commands for debugging
# Used in PreToolUse hooks for Bash tool
# Parse the command from input
command=$(echo "$CLAUDE_HOOK_DATA" | jq -r '.tool_input.command // empty')
description=$(echo "$CLAUDE_HOOK_DATA" | jq -r '.tool_input.description // "No description"')
# Exit if no command
if [ -z "$command" ]; then
exit 0
fi
# Create log directory if it doesn't exist
LOG_DIR="$HOME/.claude/logs"
mkdir -p "$LOG_DIR"
# Log file with date
LOG_FILE="$LOG_DIR/token-gate-$(date +%Y%m%d).log"
# Timestamp for log entry
timestamp=$(date '+%Y-%m-%d %H:%M:%S')
# Log FastMCP commands
if [[ "$command" == *"fastmcp"* ]]; then
echo "[$timestamp] FastMCP: $command - $description" >> "$LOG_FILE"
echo "🚀 Running FastMCP command..."
# Provide helpful hints
if [[ "$command" == *"dev"* ]]; then
echo "💡 Tip: Use 'npx fastmcp inspect' for visual debugging"
fi
fi
# Log ngrok commands
if [[ "$command" == *"ngrok"* ]]; then
echo "[$timestamp] ngrok: $command" >> "$LOG_FILE"
echo "🌐 Setting up ngrok tunnel..."
echo "💡 Remember to use the HTTPS URL with /mcp endpoint in claude.ai"
fi
# Log npm/node commands related to MCP
if [[ "$command" == *"npm"* ]] || [[ "$command" == *"node"* ]] || [[ "$command" == *"tsx"* ]]; then
if [[ "$command" == *"radius"* ]] || [[ "$command" == *"mcp"* ]] || [[ "$command" == *"server"* ]]; then
echo "[$timestamp] MCP Server: $command" >> "$LOG_FILE"
fi
fi
# Log token configuration checks
if [[ "$command" == *"EVMAUTH"* ]] || [[ "$command" == *"echo"* ]]; then
if [[ "$command" == *"CONTRACT"* ]] || [[ "$command" == *"CHAIN"* ]] || [[ "$command" == *"TOKEN"* ]]; then
echo "[$timestamp] Config Check: $command" >> "$LOG_FILE"
echo "🔍 Checking token configuration..."
fi
fi
# Log RPC tests
if [[ "$command" == *"curl"* ]] && [[ "$command" == *"rpc"* ]]; then
echo "[$timestamp] RPC Test: $command" >> "$LOG_FILE"
echo "🔗 Testing RPC connection..."
fi
# Security check - warn about potentially dangerous commands
if [[ "$command" == *"rm -rf"* ]] || [[ "$command" == *"sudo rm"* ]]; then
echo "⚠️ DANGER: Destructive command detected!"
echo "[$timestamp] BLOCKED: $command" >> "$LOG_FILE"
exit 2 # Block the command
fi
# Warn about npm publish in development
if [[ "$command" == *"npm publish"* ]]; then
echo "⚠️ WARNING: About to publish to npm registry!"
echo " Ensure version is updated and changes are committed"
echo "[$timestamp] NPM Publish: $command" >> "$LOG_FILE"
if [ "$NODE_ENV" != "production" ]; then
echo "❌ Blocking npm publish in non-production environment"
exit 2
fi
fi
exit 0
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