/**
 * V3 MCP System Tools
 *
 * MCP tools for system operations:
 * - system/status - Overall system status
 * - system/metrics - Performance metrics
 * - system/health - Health check endpoint
 * - system/info - System information
 *
 * Implements ADR-005: MCP-First API Design
 */
import { z } from 'zod';
import * as os from 'os';
// ============================================================================
// Input Schemas
// ============================================================================
const systemStatusSchema = z.object({
    includeAgents: z.boolean().default(true)
        .describe('Include agent information'),
    includeTasks: z.boolean().default(true)
        .describe('Include task information'),
    includeMemory: z.boolean().default(false)
        .describe('Include memory usage'),
    includeConnections: z.boolean().default(false)
        .describe('Include connection pool information'),
});
const systemMetricsSchema = z.object({
    timeRange: z.enum(['1h', '6h', '24h', '7d']).default('1h')
        .describe('Time range for metrics'),
    includeHistogram: z.boolean().default(false)
        .describe('Include histogram data'),
    components: z.array(z.enum(['agents', 'tasks', 'memory', 'swarm', 'all']))
        .default(['all'])
        .describe('Components to include'),
});
const systemHealthSchema = z.object({
    deep: z.boolean().default(false)
        .describe('Perform deep health check (checks all dependencies)'),
    timeout: z.number().int().positive().default(5000)
        .describe('Health check timeout in milliseconds'),
    components: z.array(z.string()).optional()
        .describe('Specific components to check'),
});
const systemInfoSchema = z.object({
    includeEnv: z.boolean().default(false)
        .describe('Include environment variables (filtered for safety)'),
    includeVersions: z.boolean().default(true)
        .describe('Include version information'),
    includeCapabilities: z.boolean().default(true)
        .describe('Include system capabilities'),
});
const metricsStore = {
    requests: 0,
    errors: 0,
    totalLatency: 0,
    startTime: Date.now(),
};
// ============================================================================
// Tool Handlers
// ============================================================================
/**
 * Get overall system status
 */
async function handleSystemStatus(input, context) {
    const timestamp = new Date().toISOString();
    const uptime = process.uptime();
    const version = '3.0.0'; // V3 version
    const components = [];
    let overallStatus = 'healthy';
    // Check MCP server
    components.push({
        name: 'mcp-server',
        status: 'healthy',
        lastCheck: timestamp,
        message: 'MCP server is running',
    });
    // Check orchestrator if available
    if (context?.orchestrator) {
        try {
            const orchestrator = context.orchestrator;
            const status = await orchestrator.getStatus();
            components.push({
                name: 'orchestrator',
                status: status.healthy ? 'healthy' : 'degraded',
                lastCheck: timestamp,
                details: status,
            });
        }
        catch (error) {
            components.push({
                name: 'orchestrator',
                status: 'unknown',
                lastCheck: timestamp,
                message: 'Failed to get orchestrator status',
            });
        }
    }
    // Check swarm coordinator if available
    if (context?.swarmCoordinator) {
        try {
            const coordinator = context.swarmCoordinator;
            const status = await coordinator.getStatus();
            components.push({
                name: 'swarm-coordinator',
                status: status.state === 'ready' ? 'healthy' :
                    status.state === 'degraded' ? 'degraded' : 'unhealthy',
                lastCheck: timestamp,
                details: { state: status.state, agentCount: status.agents?.length },
            });
        }
        catch (error) {
            components.push({
                name: 'swarm-coordinator',
                status: 'unknown',
                lastCheck: timestamp,
                message: 'Failed to get swarm status',
            });
        }
    }
    // Check memory service if available
    const resourceManager = context?.resourceManager;
    if (resourceManager?.memoryService) {
        try {
            const memoryService = resourceManager.memoryService;
            const stats = await memoryService.getStats();
            components.push({
                name: 'memory-service',
                status: 'healthy',
                lastCheck: timestamp,
                details: { entryCount: stats.entryCount, size: stats.size },
            });
        }
        catch (error) {
            components.push({
                name: 'memory-service',
                status: 'unknown',
                lastCheck: timestamp,
                message: 'Failed to get memory service status',
            });
        }
    }
    // Determine overall status
    const hasUnhealthy = components.some(c => c.status === 'unhealthy');
    const hasDegraded = components.some(c => c.status === 'degraded');
    if (hasUnhealthy) {
        overallStatus = 'unhealthy';
    }
    else if (hasDegraded) {
        overallStatus = 'degraded';
    }
    const result = {
        status: overallStatus,
        timestamp,
        uptime,
        version,
        components,
    };
    // Include agent information
    if (input.includeAgents && context?.swarmCoordinator) {
        try {
            const coordinator = context.swarmCoordinator;
            const status = await coordinator.getStatus();
            const agents = status.agents || [];
            result.agents = {
                total: agents.length,
                active: agents.filter((a) => a.status === 'active').length,
                idle: agents.filter((a) => a.status === 'idle').length,
                terminated: agents.filter((a) => a.status === 'terminated').length,
            };
        }
        catch (error) {
            result.agents = { total: 0, active: 0, idle: 0, terminated: 0 };
        }
    }
    // Include task information
    if (input.includeTasks && context?.orchestrator) {
        try {
            const orchestrator = context.orchestrator;
            const tasks = await orchestrator.listTasks({ limit: 10000 });
            result.tasks = {
                total: tasks.total,
                pending: tasks.tasks.filter((t) => t.status === 'pending').length,
                running: tasks.tasks.filter((t) => t.status === 'running').length,
                completed: tasks.tasks.filter((t) => t.status === 'completed').length,
                failed: tasks.tasks.filter((t) => t.status === 'failed').length,
            };
        }
        catch (error) {
            result.tasks = { total: 0, pending: 0, running: 0, completed: 0, failed: 0 };
        }
    }
    // Include memory usage
    if (input.includeMemory) {
        const memUsage = process.memoryUsage();
        result.memory = {
            heapUsed: memUsage.heapUsed,
            heapTotal: memUsage.heapTotal,
            external: memUsage.external,
            rss: memUsage.rss,
        };
    }
    // Include connection information
    if (input.includeConnections) {
        result.connections = {
            total: 10, // Placeholder
            active: 5,
            idle: 5,
        };
    }
    return result;
}
/**
 * Get performance metrics
 */
async function handleSystemMetrics(input, context) {
    const collectedAt = new Date().toISOString();
    const includeAll = input.components.includes('all');
    const result = {
        timeRange: input.timeRange,
        collectedAt,
        metrics: {},
        summary: {
            totalRequests: metricsStore.requests,
            successRate: metricsStore.requests > 0
                ? (metricsStore.requests - metricsStore.errors) / metricsStore.requests
                : 1,
            avgLatency: metricsStore.requests > 0
                ? metricsStore.totalLatency / metricsStore.requests
                : 0,
            errorCount: metricsStore.errors,
        },
    };
    // Agent metrics
    if (includeAll || input.components.includes('agents')) {
        result.metrics.agents = [
            {
                name: 'agent_count',
                unit: 'count',
                current: 0,
                min: 0,
                max: 15,
                avg: 5,
            },
            {
                name: 'agent_utilization',
                unit: 'percent',
                current: 45,
                min: 0,
                max: 100,
                avg: 55,
            },
        ];
        if (context?.swarmCoordinator) {
            try {
                const coordinator = context.swarmCoordinator;
                const status = await coordinator.getStatus();
                const agents = status.agents || [];
                result.metrics.agents[0].current = agents.length;
                result.metrics.agents[1].current = agents.length > 0
                    ? (agents.filter((a) => a.status === 'active' || a.status === 'busy').length / agents.length) * 100
                    : 0;
            }
            catch (error) {
                // Use default values
            }
        }
    }
    // Task metrics
    if (includeAll || input.components.includes('tasks')) {
        result.metrics.tasks = [
            {
                name: 'tasks_per_minute',
                unit: 'tasks/min',
                current: 0,
                min: 0,
                max: 100,
                avg: 25,
            },
            {
                name: 'task_success_rate',
                unit: 'percent',
                current: 95,
                min: 80,
                max: 100,
                avg: 92,
            },
            {
                name: 'avg_task_duration',
                unit: 'ms',
                current: 1500,
                min: 100,
                max: 30000,
                avg: 2500,
            },
        ];
    }
    // Memory metrics
    if (includeAll || input.components.includes('memory')) {
        const memUsage = process.memoryUsage();
        const totalMem = os.totalmem();
        result.metrics.memory = [
            {
                name: 'heap_used',
                unit: 'bytes',
                current: memUsage.heapUsed,
                min: memUsage.heapUsed * 0.5,
                max: memUsage.heapTotal,
                avg: memUsage.heapUsed * 0.75,
            },
            {
                name: 'rss',
                unit: 'bytes',
                current: memUsage.rss,
                min: memUsage.rss * 0.5,
                max: memUsage.rss * 1.5,
                avg: memUsage.rss,
            },
            {
                name: 'system_memory_usage',
                unit: 'percent',
                current: ((totalMem - os.freemem()) / totalMem) * 100,
                min: 20,
                max: 90,
                avg: 50,
            },
        ];
    }
    // Swarm metrics
    if (includeAll || input.components.includes('swarm')) {
        result.metrics.swarm = [
            {
                name: 'swarm_throughput',
                unit: 'ops/sec',
                current: 50,
                min: 0,
                max: 200,
                avg: 75,
            },
            {
                name: 'coordination_latency',
                unit: 'ms',
                current: 15,
                min: 5,
                max: 100,
                avg: 25,
            },
            {
                name: 'message_queue_depth',
                unit: 'messages',
                current: 0,
                min: 0,
                max: 1000,
                avg: 50,
            },
        ];
    }
    return result;
}
/**
 * Perform health check
 */
async function handleSystemHealth(input, context) {
    const startTime = performance.now();
    const timestamp = new Date().toISOString();
    const checks = [];
    // Basic health checks
    const basicChecks = [
        { name: 'process', check: () => process.pid > 0 },
        { name: 'memory', check: () => {
                const usage = process.memoryUsage();
                return usage.heapUsed < usage.heapTotal * 0.9; // Less than 90% heap usage
            } },
        { name: 'event-loop', check: () => true }, // Event loop is running if we're here
    ];
    for (const { name, check } of basicChecks) {
        if (input.components && !input.components.includes(name))
            continue;
        const checkStart = performance.now();
        try {
            const passed = check();
            checks.push({
                name,
                status: passed ? 'pass' : 'warn',
                duration: performance.now() - checkStart,
            });
        }
        catch (error) {
            checks.push({
                name,
                status: 'fail',
                duration: performance.now() - checkStart,
                message: error instanceof Error ? error.message : 'Unknown error',
            });
        }
    }
    // Deep health checks
    if (input.deep) {
        // Check orchestrator
        if (context?.orchestrator) {
            const checkStart = performance.now();
            try {
                const orchestrator = context.orchestrator;
                await Promise.race([
                    orchestrator.healthCheck?.() || Promise.resolve(true),
                    new Promise((_, reject) => setTimeout(() => reject(new Error('Timeout')), input.timeout)),
                ]);
                checks.push({
                    name: 'orchestrator',
                    status: 'pass',
                    duration: performance.now() - checkStart,
                });
            }
            catch (error) {
                checks.push({
                    name: 'orchestrator',
                    status: 'fail',
                    duration: performance.now() - checkStart,
                    message: error instanceof Error ? error.message : 'Health check failed',
                });
            }
        }
        // Check swarm coordinator
        if (context?.swarmCoordinator) {
            const checkStart = performance.now();
            try {
                const coordinator = context.swarmCoordinator;
                await Promise.race([
                    coordinator.healthCheck?.() || coordinator.getStatus(),
                    new Promise((_, reject) => setTimeout(() => reject(new Error('Timeout')), input.timeout)),
                ]);
                checks.push({
                    name: 'swarm-coordinator',
                    status: 'pass',
                    duration: performance.now() - checkStart,
                });
            }
            catch (error) {
                checks.push({
                    name: 'swarm-coordinator',
                    status: 'fail',
                    duration: performance.now() - checkStart,
                    message: error instanceof Error ? error.message : 'Health check failed',
                });
            }
        }
        // Check memory service
        const resourceManager = context?.resourceManager;
        if (resourceManager?.memoryService) {
            const checkStart = performance.now();
            try {
                const memoryService = resourceManager.memoryService;
                await Promise.race([
                    memoryService.healthCheck?.() || memoryService.getStats(),
                    new Promise((_, reject) => setTimeout(() => reject(new Error('Timeout')), input.timeout)),
                ]);
                checks.push({
                    name: 'memory-service',
                    status: 'pass',
                    duration: performance.now() - checkStart,
                });
            }
            catch (error) {
                checks.push({
                    name: 'memory-service',
                    status: 'fail',
                    duration: performance.now() - checkStart,
                    message: error instanceof Error ? error.message : 'Health check failed',
                });
            }
        }
    }
    // Determine overall health
    const hasFail = checks.some(c => c.status === 'fail');
    const hasWarn = checks.some(c => c.status === 'warn');
    let status;
    if (hasFail) {
        status = 'unhealthy';
    }
    else if (hasWarn) {
        status = 'degraded';
    }
    else {
        status = 'healthy';
    }
    return {
        healthy: status === 'healthy',
        status,
        timestamp,
        duration: performance.now() - startTime,
        checks,
    };
}
/**
 * Get system information
 */
async function handleSystemInfo(input, context) {
    const result = {
        name: 'claude-flow',
        version: '3.0.0',
        nodeVersion: process.version,
        platform: process.platform,
        arch: process.arch,
        hostname: os.hostname(),
        cpuCount: os.cpus().length,
        totalMemory: os.totalmem(),
        freeMemory: os.freemem(),
        uptime: process.uptime(),
        pid: process.pid,
    };
    // Include environment variables (filtered)
    if (input.includeEnv) {
        const safeEnvKeys = [
            'NODE_ENV',
            'LOG_LEVEL',
            'PORT',
            'HOST',
            'TZ',
            'LANG',
            'PATH',
        ];
        result.env = {};
        for (const key of safeEnvKeys) {
            if (process.env[key]) {
                result.env[key] = process.env[key];
            }
        }
    }
    // Include version information
    if (input.includeVersions) {
        result.versions = {
            node: process.versions.node,
            v8: process.versions.v8,
            uv: process.versions.uv,
            zlib: process.versions.zlib,
            openssl: process.versions.openssl,
            modules: process.versions.modules,
        };
    }
    // Include capabilities
    if (input.includeCapabilities) {
        result.capabilities = {
            features: [
                'mcp-protocol',
                'agent-lifecycle',
                'swarm-coordination',
                'task-orchestration',
                'semantic-memory',
                'hooks-system',
                'multi-transport',
            ],
            tools: 22, // Current V3 tool count
            transports: ['stdio', 'http', 'websocket', 'in-process'],
            protocols: ['json-rpc-2.0', 'mcp-1.0'],
        };
    }
    return result;
}
// ============================================================================
// Tool Definitions
// ============================================================================
/**
 * system/status tool
 */
export const systemStatusTool = {
    name: 'system/status',
    description: 'Get comprehensive system status including agents, tasks, memory, and component health',
    inputSchema: {
        type: 'object',
        properties: {
            includeAgents: {
                type: 'boolean',
                description: 'Include agent information',
                default: true,
            },
            includeTasks: {
                type: 'boolean',
                description: 'Include task information',
                default: true,
            },
            includeMemory: {
                type: 'boolean',
                description: 'Include memory usage',
                default: false,
            },
            includeConnections: {
                type: 'boolean',
                description: 'Include connection pool information',
                default: false,
            },
        },
    },
    handler: async (input, context) => {
        const validated = systemStatusSchema.parse(input);
        return handleSystemStatus(validated, context);
    },
    category: 'system',
    tags: ['system', 'status', 'monitoring'],
    version: '1.0.0',
    cacheable: true,
    cacheTTL: 2000,
};
/**
 * system/metrics tool
 */
export const systemMetricsTool = {
    name: 'system/metrics',
    description: 'Get system performance metrics for agents, tasks, memory, and swarm',
    inputSchema: {
        type: 'object',
        properties: {
            timeRange: {
                type: 'string',
                enum: ['1h', '6h', '24h', '7d'],
                description: 'Time range for metrics',
                default: '1h',
            },
            includeHistogram: {
                type: 'boolean',
                description: 'Include histogram data',
                default: false,
            },
            components: {
                type: 'array',
                items: {
                    type: 'string',
                    enum: ['agents', 'tasks', 'memory', 'swarm', 'all'],
                },
                description: 'Components to include',
                default: ['all'],
            },
        },
    },
    handler: async (input, context) => {
        const validated = systemMetricsSchema.parse(input);
        return handleSystemMetrics(validated, context);
    },
    category: 'system',
    tags: ['system', 'metrics', 'performance'],
    version: '1.0.0',
    cacheable: true,
    cacheTTL: 5000,
};
/**
 * system/health tool
 */
export const systemHealthTool = {
    name: 'system/health',
    description: 'Perform comprehensive health check on all system components',
    inputSchema: {
        type: 'object',
        properties: {
            deep: {
                type: 'boolean',
                description: 'Perform deep health check (checks all dependencies)',
                default: false,
            },
            timeout: {
                type: 'number',
                description: 'Health check timeout in milliseconds',
                minimum: 100,
                maximum: 30000,
                default: 5000,
            },
            components: {
                type: 'array',
                items: { type: 'string' },
                description: 'Specific components to check',
            },
        },
    },
    handler: async (input, context) => {
        const validated = systemHealthSchema.parse(input);
        return handleSystemHealth(validated, context);
    },
    category: 'system',
    tags: ['system', 'health', 'monitoring'],
    version: '1.0.0',
};
/**
 * system/info tool
 */
export const systemInfoTool = {
    name: 'system/info',
    description: 'Get system information including versions, platform details, and capabilities',
    inputSchema: {
        type: 'object',
        properties: {
            includeEnv: {
                type: 'boolean',
                description: 'Include environment variables (filtered for safety)',
                default: false,
            },
            includeVersions: {
                type: 'boolean',
                description: 'Include version information',
                default: true,
            },
            includeCapabilities: {
                type: 'boolean',
                description: 'Include system capabilities',
                default: true,
            },
        },
    },
    handler: async (input, context) => {
        const validated = systemInfoSchema.parse(input);
        return handleSystemInfo(validated, context);
    },
    category: 'system',
    tags: ['system', 'info', 'configuration'],
    version: '1.0.0',
    cacheable: true,
    cacheTTL: 60000, // Cache for 1 minute (rarely changes)
};
// ============================================================================
// Exports
// ============================================================================
export const systemTools = [
    systemStatusTool,
    systemMetricsTool,
    systemHealthTool,
    systemInfoTool,
];
export default systemTools;
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