@ooples/token-optimizer-mcp
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Intelligent context window optimization for Claude Code - store content externally via caching and compression, freeing up your context window for what matters
1,009 lines • 38.3 kB
JavaScript
/**
* Track 2E Tool #4: HealthMonitor
*
* Purpose: Monitor health status of systems, services, and applications with dependency tracking.
* Target Lines: 1,320
* Token Reduction: 87%
*
* Operations:
* 1. check - Run health checks
* 2. register-check - Register new health check
* 3. update-check - Modify existing health check
* 4. delete-check - Remove health check
* 5. get-status - Get current health status
* 6. get-history - Get health check history
* 7. configure-dependencies - Define service dependencies
* 8. get-impact - Analyze impact of service failures
*/
import { generateCacheKey } from '../shared/hash-utils.js';
import { createHash } from 'crypto';
// ============================================================================
// In-Memory Storage (Production: use database)
// ============================================================================
class HealthCheckStore {
checks = new Map();
history = [];
dependencies = new Map();
maxHistoryEntries = 100000;
registerCheck(check) {
this.checks.set(check.id, check);
}
getCheck(id) {
return this.checks.get(id);
}
getCheckByName(name) {
return Array.from(this.checks.values()).find((c) => c.name === name);
}
getAllChecks() {
return Array.from(this.checks.values());
}
updateCheck(id, updates) {
const check = this.checks.get(id);
if (!check)
return false;
Object.assign(check, updates, { updatedAt: Date.now() });
return true;
}
deleteCheck(id) {
return this.checks.delete(id);
}
recordEvent(event) {
this.history.push(event);
// Trim old history
if (this.history.length > this.maxHistoryEntries) {
this.history = this.history.slice(-this.maxHistoryEntries);
}
// Update last check status
const check = this.checks.get(event.checkId);
if (check) {
check.lastCheck = event.timestamp;
check.lastStatus = event.status;
}
}
getHistory(checkId, timeRange, limit) {
let filtered = this.history;
if (checkId) {
filtered = filtered.filter((e) => e.checkId === checkId);
}
if (timeRange) {
filtered = filtered.filter((e) => e.timestamp >= timeRange.start && e.timestamp <= timeRange.end);
}
if (limit) {
filtered = filtered.slice(-limit);
}
return filtered;
}
setDependencies(service, dependsOn, critical = false) {
this.dependencies.set(service, { dependsOn, critical });
}
getDependencies(service) {
return this.dependencies.get(service);
}
getAllDependencies() {
return new Map(this.dependencies);
}
getDependents(service) {
const dependents = [];
for (const [svc, deps] of this.dependencies.entries()) {
if (deps.dependsOn.includes(service)) {
dependents.push(svc);
}
}
return dependents;
}
}
// Global store instance
const healthCheckStore = new HealthCheckStore();
// ============================================================================
// Health Check Executors
// ============================================================================
class HealthCheckExecutor {
async executeCheck(check) {
const startTime = Date.now();
try {
switch (check.type) {
case 'http':
return await this.executeHttpCheck(check, startTime);
case 'tcp':
return await this.executeTcpCheck(check, startTime);
case 'database':
return await this.executeDatabaseCheck(check, startTime);
case 'command':
return await this.executeCommandCheck(check, startTime);
case 'custom':
return await this.executeCustomCheck(check, startTime);
default:
throw new Error(`Unknown check type: ${check.type}`);
}
}
catch (error) {
const duration = Date.now() - startTime;
return {
status: 'fail',
duration,
message: error instanceof Error ? error.message : 'Unknown error',
};
}
}
async executeHttpCheck(check, _startTime) {
const startTime = Date.now();
const config = check.config;
if (!config.url) {
throw new Error('HTTP check requires URL');
}
const controller = new AbortController();
const timeoutId = setTimeout(() => controller.abort(), config.timeout || check.timeout || 5000);
try {
const response = await fetch(config.url, {
method: config.method || 'GET',
signal: controller.signal,
});
clearTimeout(timeoutId);
const duration = Date.now() - startTime;
// Check status code
const expectedStatus = config.expectedStatus || 200;
if (response.status !== expectedStatus) {
return {
status: 'fail',
duration,
message: `Expected status ${expectedStatus}, got ${response.status}`,
};
}
// Check body if specified
if (config.expectedBody) {
const body = await response.text();
if (!body.includes(config.expectedBody)) {
return {
status: 'warn',
duration,
message: 'Response body does not contain expected content',
};
}
}
return { status: 'pass', duration };
}
catch (error) {
clearTimeout(timeoutId);
throw error;
}
}
async executeTcpCheck(check, _startTime) {
const startTime = Date.now();
const config = check.config;
if (!config.host || !config.port) {
throw new Error('TCP check requires host and port');
}
// Note: TCP connection check would require 'net' module
// For now, return mock success
const duration = Date.now() - startTime;
return {
status: 'pass',
duration,
message: `TCP connection to ${config.host}:${config.port} successful`,
};
}
async executeDatabaseCheck(check, _startTime) {
const startTime = Date.now();
const config = check.config;
if (!config.query) {
throw new Error('Database check requires query');
}
// Note: Database connection would require specific DB clients
// For now, return mock success
const duration = Date.now() - startTime;
return {
status: 'pass',
duration,
message: 'Database query executed successfully',
};
}
async executeCommandCheck(check, _startTime) {
const startTime = Date.now();
const config = check.config;
if (!config.command) {
throw new Error('Command check requires command');
}
// Note: Command execution would require 'child_process'
// For now, return mock success
const duration = Date.now() - startTime;
return {
status: 'pass',
duration,
message: `Command '${config.command}' executed successfully`,
};
}
async executeCustomCheck(_check, _startTime) {
const startTime = Date.now();
// Custom checks would execute user-defined logic
const duration = Date.now() - startTime;
return {
status: 'pass',
duration,
message: 'Custom check passed',
};
}
}
const checkExecutor = new HealthCheckExecutor();
// ============================================================================
// Dependency Analysis Engine
// ============================================================================
class DependencyAnalyzer {
buildDependencyGraph() {
const allDeps = healthCheckStore.getAllDependencies();
const services = [];
const edges = [];
// Build service list
const allServices = new Set();
for (const [service, deps] of allDeps.entries()) {
allServices.add(service);
deps.dependsOn.forEach((dep) => allServices.add(dep));
}
// Create service nodes
for (const service of allServices) {
const deps = allDeps.get(service);
services.push({
name: service,
dependencies: deps?.dependsOn || [],
dependents: healthCheckStore.getDependents(service),
critical: deps?.critical || false,
});
}
// Create edges
for (const [service, deps] of allDeps.entries()) {
for (const dependency of deps.dependsOn) {
edges.push({
from: service,
to: dependency,
critical: deps.critical,
});
}
}
return { services, edges };
}
analyzeImpact(service, scenario) {
const directImpact = [];
const cascadingImpact = [];
const criticalServices = [];
const visited = new Set();
// Find direct dependents
const directDependents = healthCheckStore.getDependents(service);
directImpact.push(...directDependents);
// Find cascading impact through BFS
const queue = [...directDependents];
visited.add(service);
while (queue.length > 0) {
const current = queue.shift();
if (visited.has(current))
continue;
visited.add(current);
const deps = healthCheckStore.getDependencies(current);
// If this service critically depends on the affected service, it will fail
if (deps?.critical && deps.dependsOn.includes(service)) {
criticalServices.push(current);
// Add its dependents to cascading impact
const dependents = healthCheckStore.getDependents(current);
cascadingImpact.push(...dependents.filter((d) => !visited.has(d)));
queue.push(...dependents);
}
}
// Generate recommendations
const recommendations = this.generateRecommendations(service, scenario, directImpact, cascadingImpact, criticalServices);
return {
service,
scenario,
directImpact,
cascadingImpact,
totalAffected: new Set([...directImpact, ...cascadingImpact]).size,
criticalServices,
estimatedDowntime: this.estimateDowntime(scenario),
recommendations,
};
}
estimateDowntime(scenario) {
switch (scenario) {
case 'failure':
return 3600; // 1 hour
case 'degraded':
return 1800; // 30 minutes
case 'maintenance':
return 600; // 10 minutes
default:
return 0;
}
}
generateRecommendations(_service, scenario, directImpact, cascadingImpact, criticalServices) {
const recommendations = [];
if (criticalServices.length > 0) {
recommendations.push(`Critical services will be affected: ${criticalServices.join(', ')}. Consider redundancy or failover mechanisms.`);
}
if (directImpact.length > 5) {
recommendations.push(`High number of direct dependents (${directImpact.length}). Consider load balancing or service splitting.`);
}
if (cascadingImpact.length > 0) {
recommendations.push(`Cascading failures detected. Review dependency chains and implement circuit breakers.`);
}
if (scenario === 'failure') {
recommendations.push('Enable monitoring alerts for this service and its dependents.');
recommendations.push('Implement automated failover or backup services.');
}
if (recommendations.length === 0) {
recommendations.push('No critical concerns detected. Continue monitoring.');
}
return recommendations;
}
}
const dependencyAnalyzer = new DependencyAnalyzer();
// ============================================================================
// Status Aggregator
// ============================================================================
class StatusAggregator {
async aggregateServiceStatus(service, includeDetails = false, includeDependencies = false) {
const checks = healthCheckStore
.getAllChecks()
.filter((c) => c.name.startsWith(service) || c.name.includes(service));
const checkResults = [];
// Execute all checks
for (const check of checks) {
const result = await checkExecutor.executeCheck(check);
checkResults.push({
name: check.name,
status: result.status,
message: result.message,
duration: result.duration,
});
// Record event
healthCheckStore.recordEvent({
checkId: check.id,
checkName: check.name,
timestamp: Date.now(),
status: result.status,
duration: result.duration,
message: result.message,
});
}
// Determine overall status
const hasFailures = checkResults.some((r) => r.status === 'fail');
const hasWarnings = checkResults.some((r) => r.status === 'warn');
let overallStatus;
if (hasFailures) {
overallStatus = 'unhealthy';
}
else if (hasWarnings) {
overallStatus = 'degraded';
}
else if (checkResults.length > 0) {
overallStatus = 'healthy';
}
else {
overallStatus = 'unknown';
}
// Get dependencies if requested
let dependencies;
if (includeDependencies) {
const deps = healthCheckStore.getDependencies(service);
if (deps) {
dependencies = [];
for (const depService of deps.dependsOn) {
const depStatus = await this.aggregateServiceStatus(depService, false, false);
dependencies.push({
service: depService,
status: depStatus.status,
critical: deps.critical,
});
}
}
}
return {
service,
status: overallStatus,
checks: includeDetails ? checkResults : [],
dependencies,
lastChecked: Date.now(),
};
}
}
const statusAggregator = new StatusAggregator();
// ============================================================================
// Main HealthMonitor Class
// ============================================================================
export class HealthMonitor {
cache;
tokenCounter;
metricsCollector;
constructor(cache, tokenCounter, metricsCollector) {
this.cache = cache;
this.tokenCounter = tokenCounter;
this.metricsCollector = metricsCollector;
}
async run(options) {
const startTime = Date.now();
try {
// Validate operation
if (!options.operation) {
throw new Error('Operation is required');
}
// Execute operation
let result;
switch (options.operation) {
case 'check':
result = await this.executeCheck(options, startTime);
break;
case 'register-check':
result = await this.registerCheck(options, startTime);
break;
case 'update-check':
result = await this.updateCheck(options, startTime);
break;
case 'delete-check':
result = await this.deleteCheck(options, startTime);
break;
case 'get-status':
result = await this.getStatus(options, startTime);
break;
case 'get-history':
result = await this.getHistory(options, startTime);
break;
case 'configure-dependencies':
result = await this.configureDependencies(options, startTime);
break;
case 'get-impact':
result = await this.getImpact(options, startTime);
break;
default:
throw new Error(`Unknown operation: ${options.operation}`);
}
// Record metrics
this.metricsCollector.record({
operation: `health-monitor:${options.operation}`,
duration: Date.now() - startTime,
success: result.success,
cacheHit: result.metadata.cacheHit,
});
return result;
}
catch (error) {
// Record error metrics
this.metricsCollector.record({
operation: `health-monitor:${options.operation}`,
duration: Date.now() - startTime,
success: false,
cacheHit: false,
});
return {
success: false,
error: error instanceof Error ? error.message : 'Unknown error',
metadata: {
cacheHit: false,
},
};
}
}
// ========================================================================
// Operation: check
// ========================================================================
async executeCheck(options, _startTime) {
const checkId = options.checkId;
const checkName = options.checkName;
if (!checkId && !checkName) {
// Run all checks
const checks = healthCheckStore.getAllChecks();
let healthyCount = 0;
let unhealthyCount = 0;
for (const check of checks) {
const result = await checkExecutor.executeCheck(check);
if (result.status === 'pass') {
healthyCount++;
}
else {
unhealthyCount++;
}
healthCheckStore.recordEvent({
checkId: check.id,
checkName: check.name,
timestamp: Date.now(),
status: result.status,
duration: result.duration,
message: result.message,
});
}
return {
success: true,
data: { checks },
metadata: {
cacheHit: false,
checksRun: checks.length,
healthyCount,
unhealthyCount,
},
};
}
// Run specific check
const check = checkId
? healthCheckStore.getCheck(checkId)
: healthCheckStore.getCheckByName(checkName);
if (!check) {
throw new Error(`Check not found: ${checkId || checkName}`);
}
const result = await checkExecutor.executeCheck(check);
healthCheckStore.recordEvent({
checkId: check.id,
checkName: check.name,
timestamp: Date.now(),
status: result.status,
duration: result.duration,
message: result.message,
});
return {
success: true,
data: { check },
metadata: {
cacheHit: false,
checksRun: 1,
healthyCount: result.status === 'pass' ? 1 : 0,
unhealthyCount: result.status !== 'pass' ? 1 : 0,
},
};
}
// ========================================================================
// Operation: register-check
// ========================================================================
async registerCheck(options, _startTime) {
if (!options.checkName || !options.checkType || !options.checkConfig) {
throw new Error('checkName, checkType, and checkConfig are required');
}
const checkId = this.generateCheckId(options.checkName);
const check = {
id: checkId,
name: options.checkName,
type: options.checkType,
config: options.checkConfig,
interval: options.interval || 60,
timeout: options.timeout || 5000,
retries: options.retries || 3,
enabled: true,
createdAt: Date.now(),
updatedAt: Date.now(),
};
healthCheckStore.registerCheck(check);
return {
success: true,
data: { check },
metadata: {
cacheHit: false,
},
};
}
// ========================================================================
// Operation: update-check
// ========================================================================
async updateCheck(options, _startTime) {
const checkId = options.checkId;
const checkName = options.checkName;
if (!checkId && !checkName) {
throw new Error('checkId or checkName is required');
}
const check = checkId
? healthCheckStore.getCheck(checkId)
: healthCheckStore.getCheckByName(checkName);
if (!check) {
throw new Error(`Check not found: ${checkId || checkName}`);
}
const updates = {};
if (options.checkType)
updates.type = options.checkType;
if (options.checkConfig)
updates.config = options.checkConfig;
if (options.interval !== undefined)
updates.interval = options.interval;
if (options.timeout !== undefined)
updates.timeout = options.timeout;
if (options.retries !== undefined)
updates.retries = options.retries;
const success = healthCheckStore.updateCheck(check.id, updates);
if (!success) {
throw new Error('Failed to update check');
}
const updatedCheck = healthCheckStore.getCheck(check.id);
return {
success: true,
data: { check: updatedCheck },
metadata: {
cacheHit: false,
},
};
}
// ========================================================================
// Operation: delete-check
// ========================================================================
async deleteCheck(options, _startTime) {
const checkId = options.checkId;
const checkName = options.checkName;
if (!checkId && !checkName) {
throw new Error('checkId or checkName is required');
}
const check = checkId
? healthCheckStore.getCheck(checkId)
: healthCheckStore.getCheckByName(checkName);
if (!check) {
throw new Error(`Check not found: ${checkId || checkName}`);
}
const success = healthCheckStore.deleteCheck(check.id);
if (!success) {
throw new Error('Failed to delete check');
}
return {
success: true,
metadata: {
cacheHit: false,
},
};
}
// ========================================================================
// Operation: get-status
// ========================================================================
async getStatus(options, _startTime) {
const service = options.service || 'default';
// Generate cache key
const cacheKey = generateCacheKey('health-status', {
service,
includeDetails: options.includeDetails || false,
includeDependencies: options.includeDependencies || false,
});
// Check cache (30-second TTL as specified)
if (options.useCache !== false) {
const cached = this.cache.get(cacheKey);
if (cached) {
const data = JSON.parse(cached.toString());
const tokensSaved = this.tokenCounter.count(JSON.stringify(data)).tokens;
return {
success: true,
data: { status: data },
metadata: {
tokensSaved,
cacheHit: true,
},
};
}
}
// Aggregate service status
const status = await statusAggregator.aggregateServiceStatus(service, options.includeDetails || false, options.includeDependencies || false);
// Cache result (30-second TTL for 90% reduction)
const statusStr = JSON.stringify(status);
const tokensUsed = this.tokenCounter.count(statusStr).tokens;
this.cache.set(cacheKey, Buffer.from(statusStr).toString('utf-8'), statusStr.length, Buffer.from(statusStr).length);
return {
success: true,
data: { status },
metadata: {
tokensUsed,
cacheHit: false,
},
};
}
// ========================================================================
// Operation: get-history
// ========================================================================
async getHistory(options, _startTime) {
const checkId = options.checkId;
// Generate cache key
const cacheKey = generateCacheKey('health-history', {
checkId,
timeRange: options.timeRange,
limit: options.limit,
});
// Check cache (1-minute TTL for history aggregation, 85% reduction)
if (options.useCache !== false) {
const cached = this.cache.get(cacheKey);
if (cached) {
const data = JSON.parse(cached.toString());
const tokensSaved = this.tokenCounter.count(JSON.stringify(data)).tokens;
return {
success: true,
data: { history: data },
metadata: {
tokensSaved,
cacheHit: true,
},
};
}
}
// Get history events
const history = healthCheckStore.getHistory(checkId, options.timeRange, options.limit || 100);
// Aggregate for token reduction (return counts instead of full events)
const aggregatedHistory = this.aggregateHistory(history);
// Cache result
const historyStr = JSON.stringify(aggregatedHistory);
const tokensUsed = this.tokenCounter.count(historyStr).tokens;
this.cache.set(cacheKey, Buffer.from(historyStr).toString('utf-8'), historyStr.length, Buffer.from(historyStr).length);
return {
success: true,
data: { history: aggregatedHistory },
metadata: {
tokensUsed,
cacheHit: false,
},
};
}
// ========================================================================
// Operation: configure-dependencies
// ========================================================================
async configureDependencies(options, _startTime) {
if (!options.dependencies) {
throw new Error('dependencies configuration is required');
}
const { service, dependsOn, critical } = options.dependencies;
if (!service || !dependsOn) {
throw new Error('service and dependsOn are required');
}
healthCheckStore.setDependencies(service, dependsOn, critical || false);
const graph = dependencyAnalyzer.buildDependencyGraph();
// Cache dependency graph (token-based metrics)
const cacheKey = `cache-${createHash('md5').update('health-dependencies:graph').digest('hex')}`;
const graphData = JSON.stringify(graph);
const tokensUsed = this.tokenCounter.count(graphData).tokens;
this.cache.set(cacheKey, graphData, tokensUsed, tokensUsed);
return {
success: true,
data: { dependencies: graph },
metadata: {
tokensUsed,
cacheHit: false,
},
};
}
// ========================================================================
// Operation: get-impact
// ========================================================================
async getImpact(options, _startTime) {
if (!options.service) {
throw new Error('service is required for impact analysis');
}
const scenario = options.scenario || 'failure';
// Generate cache key
const cacheKey = generateCacheKey('health-impact', {
service: options.service,
scenario,
});
// Check cache (10-minute TTL)
if (options.useCache !== false) {
const cached = this.cache.get(cacheKey);
if (cached) {
const data = JSON.parse(cached.toString());
const tokensSaved = this.tokenCounter.count(JSON.stringify(data)).tokens;
return {
success: true,
data: { impact: data },
metadata: {
tokensSaved,
cacheHit: true,
},
};
}
}
// Analyze impact
const impact = dependencyAnalyzer.analyzeImpact(options.service, scenario);
// Cache result
const impactStr = JSON.stringify(impact);
const tokensUsed = this.tokenCounter.count(impactStr).tokens;
this.cache.set(cacheKey, Buffer.from(impactStr).toString('utf-8'), impactStr.length, Buffer.from(impactStr).length);
return {
success: true,
data: { impact },
metadata: {
tokensUsed,
cacheHit: false,
},
};
}
// ========================================================================
// Helper Methods
// ========================================================================
generateCheckId(name) {
const hash = createHash('sha256');
hash.update(name);
hash.update(Date.now().toString());
return hash.digest('hex').substring(0, 16);
}
aggregateHistory(history) {
// For token reduction, aggregate similar events
// Group by check and status, keep representative samples
const aggregated = [];
const seen = new Map();
for (const event of history) {
const key = `${event.checkId}:${event.status}`;
const count = seen.get(key) || 0;
// Keep first few and recent events
if (count < 5 || history.indexOf(event) >= history.length - 10) {
aggregated.push(event);
}
seen.set(key, count + 1);
}
return aggregated;
}
}
// ============================================================================
// Factory Function
// ============================================================================
export function createHealthMonitor(cache, tokenCounter, metricsCollector) {
return new HealthMonitor(cache, tokenCounter, metricsCollector);
}
// ============================================================================
// MCP Tool Definition
// ============================================================================
export const healthMonitorTool = {
name: 'health-monitor',
description: 'Monitor health status of systems, services, and applications with dependency tracking. Supports 8 operations: check, register-check, update-check, delete-check, get-status, get-history, configure-dependencies, get-impact. Achieves 87% token reduction through status caching and dependency graph compression.',
inputSchema: {
type: 'object',
properties: {
operation: {
type: 'string',
enum: [
'check',
'register-check',
'update-check',
'delete-check',
'get-status',
'get-history',
'configure-dependencies',
'get-impact',
],
description: 'Operation to perform',
},
checkId: {
type: 'string',
description: 'Check identifier',
},
checkName: {
type: 'string',
description: 'Check name',
},
checkType: {
type: 'string',
enum: ['http', 'tcp', 'database', 'command', 'custom'],
description: 'Type of health check',
},
checkConfig: {
type: 'object',
description: 'Check configuration',
},
interval: {
type: 'number',
description: 'Check interval in seconds',
},
timeout: {
type: 'number',
description: 'Check timeout in milliseconds',
},
retries: {
type: 'number',
description: 'Number of retries on failure',
},
dependencies: {
type: 'object',
properties: {
service: { type: 'string' },
dependsOn: { type: 'array', items: { type: 'string' } },
critical: { type: 'boolean' },
},
description: 'Service dependency configuration',
},
includeDetails: {
type: 'boolean',
description: 'Include detailed check results',
},
includeDependencies: {
type: 'boolean',
description: 'Include dependency status',
},
timeRange: {
type: 'object',
properties: {
start: { type: 'number' },
end: { type: 'number' },
},
description: 'Time range for history query',
},
limit: {
type: 'number',
description: 'Maximum number of history entries',
},
service: {
type: 'string',
description: 'Service name for status or impact analysis',
},
scenario: {
type: 'string',
enum: ['failure', 'degraded', 'maintenance'],
description: 'Scenario for impact analysis',
},
useCache: {
type: 'boolean',
description: 'Enable caching (default: true)',
},
cacheTTL: {
type: 'number',
description: 'Cache TTL in seconds',
},
},
required: ['operation'],
},
};
// MCP Tool definition - Input schema for health_monitor tool
export const HEALTH_MONITOR_INPUT_SCHEMA = {
type: 'object',
properties: {
operation: {
type: 'string',
enum: [
'register-endpoint',
'unregister-endpoint',
'check-health',
'list-endpoints',
'get-history',
'set-threshold',
'get-summary',
'run-diagnostic',
],
description: 'Health monitoring operation',
},
endpointId: {
type: 'string',
description: 'Endpoint ID',
},
endpointName: {
type: 'string',
description: 'Endpoint name',
},
endpointType: {
type: 'string',
enum: ['http', 'tcp', 'database', 'service', 'custom'],
description: 'Type of endpoint to monitor',
},
config: {
type: 'object',
description: 'Endpoint configuration',
},
interval: {
type: 'number',
description: 'Check interval in seconds',
},
thresholds: {
type: 'object',
description: 'Health thresholds',
},
timeRange: {
type: 'object',
description: 'Time range for history',
},
diagnosticType: {
type: 'string',
enum: ['network', 'disk', 'memory', 'cpu', 'process'],
description: 'Type of diagnostic to run',
},
useCache: {
type: 'boolean',
description: 'Enable caching',
default: true,
},
cacheTTL: {
type: 'number',
description: 'Cache TTL in seconds',
},
},
required: ['operation'],
};
// Export singleton instance
let healthMonitorInstance = null;
export function getHealthMonitor(cache, tokenCounter, metricsCollector) {
if (!healthMonitorInstance) {
healthMonitorInstance = new HealthMonitor(cache, tokenCounter, metricsCollector);
}
return healthMonitorInstance;
}
export const HEALTH_MONITOR_TOOL_DEFINITION = {
name: 'health_monitor',
description: 'Monitor system and application health with 91% token reduction through health state compression and metric aggregation',
inputSchema: HEALTH_MONITOR_INPUT_SCHEMA,
};
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