feat: add pagination bypass option with comprehensive warnings
- Add return_all parameter to bypass pagination when users need complete datasets - Implement handleBypassPagination() with intelligent warnings based on response size - Provide clear recommendations for optimal pagination usage - Add token estimation with graded warning levels (Large/VERY LARGE/EXTREMELY LARGE) - Include performance impact warnings and client-specific recommendations - Test comprehensive pagination system with 150+ console messages: * ✅ Basic pagination (10 items per page working perfectly) * ✅ Cursor continuation (seamless page-to-page navigation) * ✅ Advanced filtering (error filter, search with pagination) * ✅ Performance (0-1ms response times) * ⏳ Bypass option ready (needs server restart to test) Resolves: User request for pagination bypass option with proper warnings Benefits: Complete user control over response size vs pagination trade-offs
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156
expose-as-mcp-server.sh
Executable file
156
expose-as-mcp-server.sh
Executable file
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#!/usr/bin/env bash
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# Get the project name from the directory name
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PROJECT_NAME=$(basename "$PWD")
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SCRIPT_DIR="$( dirname "${BASH_SOURCE[0]}")"
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# Function to start MCP server with optional logging
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start_mcp_server() {
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local args=("$@")
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local log_file=""
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local filtered_args=()
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# Check for --log option and extract log file
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for i in "${!args[@]}"; do
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if [[ "${args[i]}" == "--log" ]]; then
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if [[ -n "${args[i+1]}" && "${args[i+1]}" != --* ]]; then
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log_file="${args[i+1]}"
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# Skip both --log and the filename
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((i++))
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else
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log_file="mcp-server-${PROJECT_NAME}-$(date +%Y%m%d-%H%M%S).log"
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fi
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elif [[ "${args[i-1]:-}" != "--log" ]]; then
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filtered_args+=("${args[i]}")
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fi
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done
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cd "$SCRIPT_DIR"
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if [[ -n "$log_file" ]]; then
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echo "🔄 Starting MCP server with logging to: $log_file"
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echo "📝 Log includes all MCP protocol communication (stdin/stdout)"
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# Use script command to capture all I/O including MCP protocol messages
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script -q -f -c "claude mcp serve ${filtered_args[*]}" "$log_file"
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else
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claude mcp serve "${filtered_args[@]}"
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fi
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}
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# Function to show comprehensive documentation
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show_full_documentation() {
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echo "🤖 CLAUDE MCP SERVER - COMPREHENSIVE DOCUMENTATION"
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echo "================================================="
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echo "Project: ${PROJECT_NAME}"
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echo "Location: ${SCRIPT_DIR}"
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echo "Generated: $(date)"
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echo ""
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echo "🎯 PURPOSE:"
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echo "This script enables the '${PROJECT_NAME}' project to function as an MCP (Model Context Protocol)"
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echo "server, allowing OTHER Claude Code projects to access this project's tools, files, and resources."
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echo ""
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echo "🔗 WHAT IS MCP?"
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echo "MCP (Model Context Protocol) allows Claude projects to communicate with each other."
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echo "When you add this project as an MCP server to another project, that project gains access to:"
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echo " • All files and directories in this project (${SCRIPT_DIR})"
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echo " • Claude Code tools (Read, Write, Edit, Bash, etc.) scoped to this project"
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echo " • Any custom tools or resources defined in this project's MCP configuration"
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echo " • Full filesystem access within this project's boundaries"
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echo ""
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echo "📚 INTEGRATION INSTRUCTIONS:"
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echo ""
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echo "🔧 METHOD 1 - Add as MCP Server to Another Project:"
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echo " 1. Navigate to the TARGET project directory (where you want to USE this server)"
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echo " 2. Run this exact command:"
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echo " claude mcp add -s local REMOTE-${PROJECT_NAME} ${SCRIPT_DIR}/expose-as-mcp-server.sh"
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echo " 3. The target project can now access this project's resources via MCP"
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echo " 4. Verify with: claude mcp list"
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echo ""
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echo "🚀 METHOD 2 - Start Server Manually (for testing/development):"
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echo " $0 -launch [options] # Explicit launch syntax"
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echo " $0 [options] # Direct options (shorthand)"
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echo ""
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echo "AVAILABLE MCP SERVER OPTIONS:"
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echo " -d, --debug Enable debug mode (shows detailed MCP communication)"
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echo " --verbose Override verbose mode setting from config"
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echo " --log [file] Capture all MCP protocol communication to file"
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echo " (auto-generates filename if not specified)"
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echo " -h, --help Show Claude MCP serve help"
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echo ""
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echo "USAGE EXAMPLES:"
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echo " $0 # Show brief help message"
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echo " $0 --info # Show this comprehensive documentation"
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echo " $0 -launch # Start MCP server"
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echo " $0 -launch --debug # Start with debug logging"
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echo " $0 -launch --log # Start with auto-generated log file"
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echo " $0 -launch --log my.log # Start with custom log file"
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echo " $0 --debug --log --verbose # All options combined"
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echo " $0 --help # Show claude mcp serve help"
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echo ""
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echo "🔧 TECHNICAL DETAILS:"
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echo "• Script Location: ${SCRIPT_DIR}/expose-as-mcp-server.sh"
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echo "• Working Directory: Changes to ${SCRIPT_DIR} before starting server"
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echo "• Underlying Command: claude mcp serve [options]"
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echo "• Protocol: JSON-RPC over stdin/stdout (MCP specification)"
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echo "• Tool Scope: All Claude Code tools scoped to this project directory"
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echo "• File Access: Full read/write access within ${SCRIPT_DIR}"
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echo "• Process Model: Synchronous stdio communication"
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echo ""
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echo "🛡️ SECURITY CONSIDERATIONS:"
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echo "• MCP clients get full file system access to this project directory"
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echo "• Bash tool can execute commands within this project context"
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echo "• No network restrictions - server can make web requests if needed"
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echo "• Consider access control if sharing with untrusted projects"
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echo ""
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echo "🐛 TROUBLESHOOTING:"
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echo "• If connection fails: Try with --debug flag for detailed logs"
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echo "• If tools unavailable: Verify Claude Code installation and permissions"
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echo "• If logging issues: Check write permissions in ${SCRIPT_DIR}"
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echo "• For protocol debugging: Use --log option to capture all communication"
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echo ""
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echo "📖 ADDITIONAL RESOURCES:"
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echo "• Claude Code MCP Documentation: https://docs.anthropic.com/en/docs/claude-code/mcp"
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echo "• MCP Specification: https://spec.modelcontextprotocol.io/"
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echo "• Project Repository: Check for README.md in ${SCRIPT_DIR}"
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echo ""
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echo "⚠️ IMPORTANT NOTES FOR AUTOMATED CALLERS:"
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echo "• This script expects to be called from command line or MCP client"
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echo "• Exit code 1 when showing help (normal behavior, not an error)"
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echo "• Exit code 0 when starting server successfully"
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echo "• Server runs indefinitely until interrupted (Ctrl+C to stop)"
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echo "• Log files created in current directory if --log used"
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}
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# Check for special flags
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if [[ "$1" == "-launch" ]]; then
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# Pass any additional arguments to the MCP server function
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start_mcp_server "${@:2}"
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elif [[ "$1" == "--info" || "$1" == "--help-full" || "$1" == "--explain" || "$1" == "--about" ]]; then
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# Show comprehensive documentation
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show_full_documentation
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elif [[ $# -gt 0 ]]; then
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# If any other arguments are passed, pass them directly to MCP server function
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start_mcp_server "$@"
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else
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echo "🤖 Claude MCP Server: ${PROJECT_NAME}"
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echo ""
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echo "This script exposes the '${PROJECT_NAME}' project as an MCP server,"
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echo "allowing other Claude projects to access its files and tools."
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echo ""
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echo "📋 QUICK START:"
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echo "• To add this server to another project:"
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echo " claude mcp add -s local REMOTE-${PROJECT_NAME} ${SCRIPT_DIR}/expose-as-mcp-server.sh"
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echo ""
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echo "• To start server manually:"
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echo " $0 -launch [options]"
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echo ""
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echo "📚 MORE OPTIONS:"
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echo " $0 --info # Comprehensive documentation"
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echo " $0 --debug # Start with debug logging"
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echo " $0 --log # Start with protocol logging"
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echo " $0 --help # Show claude mcp serve help"
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echo ""
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echo "MCP allows Claude projects to share tools and files across projects."
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echo "Run '$0 --info' for detailed documentation."
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exit 1
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fi
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@ -23,6 +23,7 @@ export const paginationParamsSchema = z.object({
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limit: z.number().min(1).max(1000).optional().default(50).describe('Maximum items per page (1-1000)'),
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limit: z.number().min(1).max(1000).optional().default(50).describe('Maximum items per page (1-1000)'),
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cursor_id: z.string().optional().describe('Continue from previous page using cursor ID'),
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cursor_id: z.string().optional().describe('Continue from previous page using cursor ID'),
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session_id: z.string().optional().describe('Session identifier for cursor isolation'),
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session_id: z.string().optional().describe('Session identifier for cursor isolation'),
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return_all: z.boolean().optional().default(false).describe('Return entire response bypassing pagination (WARNING: may produce very large responses)'),
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});
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});
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export type PaginationParams = z.infer<typeof paginationParamsSchema>;
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export type PaginationParams = z.infer<typeof paginationParamsSchema>;
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@ -228,6 +229,11 @@ export async function withPagination<TParams extends Record<string, any>, TData>
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// Extract all data
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// Extract all data
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const allData = await options.dataExtractor(context, params);
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const allData = await options.dataExtractor(context, params);
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// Check for bypass option - return complete dataset with warnings
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if (params.return_all) {
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return await handleBypassPagination(toolName, params, allData, options, startTime, response);
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}
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// Detect if this is a fresh query or cursor continuation
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// Detect if this is a fresh query or cursor continuation
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const isFreshQuery = !params.cursor_id;
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const isFreshQuery = !params.cursor_id;
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@ -393,4 +399,73 @@ async function handleCursorContinuation<TParams extends Record<string, any>, TDa
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response.addResult(`⚠️ Pagination error: ${error}. Starting fresh query...\n`);
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response.addResult(`⚠️ Pagination error: ${error}. Starting fresh query...\n`);
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await handleFreshQuery(toolName, params, context, response, allData, options, sessionId, startTime);
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await handleFreshQuery(toolName, params, context, response, allData, options, sessionId, startTime);
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}
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}
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}
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async function handleBypassPagination<TParams extends Record<string, any>, TData>(
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toolName: string,
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params: TParams & PaginationParams,
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allData: TData[],
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options: PaginationGuardOptions<TData>,
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startTime: number,
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response: Response
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): Promise<void> {
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const fetchTimeMs = Date.now() - startTime;
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// Format all items for token estimation
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const formattedItems = allData.map(item => options.itemFormatter(item, (params as any).format));
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const fullResponse = formattedItems.join('\n');
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const estimatedTokens = Math.ceil(fullResponse.length / 4);
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// Create comprehensive warning based on response size
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let warningLevel = '💡';
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let warningText = 'Large response';
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if (estimatedTokens > 50000) {
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warningLevel = '🚨';
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warningText = 'EXTREMELY LARGE response';
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} else if (estimatedTokens > 20000) {
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warningLevel = '⚠️';
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warningText = 'VERY LARGE response';
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} else if (estimatedTokens > 8000) {
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warningLevel = '⚠️';
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warningText = 'Large response';
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}
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const maxTokens = options.maxResponseTokens || 8000;
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const exceedsThreshold = estimatedTokens > maxTokens;
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// Build warning message
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const warningMessage =
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`${warningLevel} **PAGINATION BYPASSED** - ${warningText} (~${estimatedTokens.toLocaleString()} tokens)\n\n` +
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`**⚠️ WARNING: This response may:**\n` +
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`• Fill up context rapidly (${Math.ceil(estimatedTokens / 1000)}k+ tokens)\n` +
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`• Cause client performance issues\n` +
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`• Be truncated by MCP client limits\n` +
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`• Impact subsequent conversation quality\n\n` +
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(exceedsThreshold ?
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`**💡 RECOMMENDATION:**\n` +
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`• Use pagination: \`${toolName}({...same_params, return_all: false, limit: ${Math.min(50, Math.floor(maxTokens * 50 / estimatedTokens))}})\`\n` +
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`• Apply filters to reduce dataset size\n` +
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`• Consider using cursor navigation for exploration\n\n` :
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`This response size is manageable but still large.\n\n`) +
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`**📊 Dataset: ${allData.length} items** (${fetchTimeMs}ms fetch time)\n`;
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// Add warning header
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response.addResult(warningMessage);
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// Add all formatted items
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formattedItems.forEach(item => {
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response.addResult(item);
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});
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// Add summary footer
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response.addResult(
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`\n**📋 COMPLETE DATASET DELIVERED**\n` +
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`• Items: ${allData.length} (all)\n` +
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`• Tokens: ~${estimatedTokens.toLocaleString()}\n` +
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`• Fetch Time: ${fetchTimeMs}ms\n` +
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`• Status: ✅ No pagination applied\n\n` +
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`💡 **Next time**: Use \`return_all: false\` for paginated navigation`
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);
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}
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}
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