Service Mesh Troubleshooting & Diagnostics
Debug service mesh traffic, policies, and performance issues systematically
What You Can Do
You can diagnose and resolve service mesh problems by analyzing control plane state, interpreting data plane metrics, and evaluating network policies. Claude helps you trace traffic flow issues, identify performance bottlenecks, detect policy conflicts, and pinpoint root causes using structured diagnostic workflows that combine cluster state analysis with behavioral inspection.
Features
Parse Istio/Linkerd configuration to detect malformed policies and routing mismatches
Follow packet paths through your mesh to identify where traffic breaks or routes unexpectedly
Verify mutual TLS, RBAC, and authorization policies are enforced correctly
Correlate Envoy metrics, load balancer behavior, and pod resources to find latency sources
Reference known problems (retry storms, circuit breaker thrashing, DNS loops) and proven fixes
Identify overlapping or contradictory rules that cause unexpected behavior
Debug uneven traffic distribution and algorithm misconfiguration
Translate raw Prometheus/Envoy stats into actionable insights
Example Output
Example 1: Traffic Routing Failure
✓ Diagnosis: VirtualService misconfiguration
- Destination rules reference non-existent service subset
- Fix: Update subset names to match DestinationRule definitions
- Expected outcome: Traffic routes to healthy backends after 30s propogation
Example 2: High Latency Investigation
✓ Root cause identified: Retry storm
- Policy retries failed requests 5x, amplifying 100ms latency → 500ms observed
- Connections: 10 concurrent retries × 50ms per attempt = 500ms user-visible delay
- Recommendation: Reduce
maxRetries: 3, add jitter backoff
Example 3: mTLS Connection Refused
✓ Policy check: AuthorizationPolicy denies namespace traffic
- Sender pod (namespace: dev) lacks required label
traffic: allowed - Fix: Add label to pod or modify policy selector to
namespaceSelector: dev - Test: Retry connection after 10s for label propagation
What's Included
- SKILL.md: Structured troubleshooting workflows for traffic, policies, and performance
- Control Plane State Analyzer: Template to inventory VirtualServices, DestinationRules, AuthorizationPolicies, and detect conflicts
- Data Plane Behavior Checklist: Step-by-step inspection of Envoy config, metrics, and connection logs
- Network Policy Validation Template: mTLS readiness, RBAC rule audit, and cross-namespace access verification
- Performance Profiling Worksheet: Correlate CPU/memory/latency across pods and identify bottlenecks
- Common Issues & Fixes Reference: 15+ diagnosed problems with root causes and resolutions
- Metrics Interpretation Guide: Decode Prometheus/Envoy stats (connection timeout, retry count, routing errors)
Who It's For
- Platform engineers responsible for service mesh reliability and configuration
- SRE/DevOps engineers troubleshooting production incidents and cluster stability
- Kubernetes operators managing mesh upgrades and policy enforcement
- Network engineers debugging traffic routing and load balancing
- Microservices architects validating mesh behavior during design and deployment
Best For
- Traffic routing failures and circuit breaker thrashing — Diagnose why traffic doesn't reach intended services or keeps failing
- Mutual TLS and authorization policy issues — Verify encrypted communication and RBAC rules are enforced correctly
- Latency and performance bottlenecks — Correlate metrics to find if delays originate in mesh, application, or infrastructure
- Load balancing misconfiguration — Debug uneven traffic distribution and connection pooling issues
- Service discovery and DNS failures — Trace hostname resolution and sidecar readiness problems
You might also like
Rapidly analyze production incidents by correlating observability signals—logs, metrics, traces, and events—to identify the true root cause instead of symptoms. You'll reconstruct incident timelines, quantify impact scope, and generate both immediate remediation steps and long-term prevention measures.
Claude analyzes your code diffs and generates standardized commit messages that follow the Conventional Commits specification. The skill automatically determines the correct commit type, scope, and description based on the changes you've made, ensuring your messages are parseable by automation tools while remaining human-readable for code reviewers.
You'll transform high-level feature requirements into a complete development plan covering API design, frontend implementation, testing strategy, and documentation. The skill helps you identify dependencies, parallelize work across frontend and backend teams, and establish quality gates that ensure features ship bug-free with proper error handling and logging.
Transform schema and data changes into production-ready migration packages that protect data integrity and minimize downtime. You can handle column additions, renames, type conversions, and backfills using proven patterns like expand-contract and shadow tables. The skill generates explicit rollback scripts, validation checklists, and phased execution plans that keep applications stable throughout the migration.
You can create comprehensive performance testing strategies tailored to your application's architecture, analyze test results to identify bottlenecks, and generate prioritized recommendations for optimization. The skill helps you design load tests, interpret metrics like latency and throughput, and create action plans for performance improvements.
You can design comprehensive performance test strategies tailored to your application architecture, analyze performance metrics and logs to identify bottlenecks, and receive specific optimization recommendations. The skill guides you through creating realistic load scenarios, interpreting performance data, and prioritizing fixes based on impact analysis.
You can submit your Solidity smart contracts for comprehensive security analysis, vulnerability detection, and gas optimization recommendations. Claude reviews your code against known attack vectors, design patterns, and best practices—identifying reentrancy risks, overflow/underflow issues, access control flaws, and inefficient operations. You receive actionable fix recommendations with explanations of the security implications and gas savings potential.
You can accelerate your entire antenna design workflow—from initial concept to optimized specifications—by leveraging Claude's knowledge of electromagnetic theory, antenna types, and design trade-offs. Claude helps you parameterize designs, identify optimal configurations for your frequency band and application, and prepare detailed briefs for simulation and manufacturing. You'll generate design reviews, impedance-matching solutions, and validation checklists without context-switching to multiple tools.