By name: performance-and-runtime-ops description: Performance and runtime ops — tuning, benchmarking, profiling, concurrency, SIMD, containers, CI, observability.
performance and runtime ops
Category skill (blueprint pack). The description above is the only thing the
router sees — broad and generic on purpose. The fat detail lives in the
blueprints below; open the one that matches and read it in full.
Governs its own form per .claude/rules/rules-are-small-carved-sentences-pointing-to-docs.md
and .claude/rules/mirror-beacon-register-discipline.md (carved sentence = hub /
Beacon; blueprint = satellite / Mirror). The directory is an independent shipping unit.
Blueprints
performance-engineer— Hot-path tuning — allocation audits, cache-line behaviour, SIMD dispatch, benchmark-driven optimization.performance-analysis-expert— Performance analysis — queueing theory, USE/RED, Amdahl, flame graphs, AOT/PGO trade-offs, top-down uarch analysis.benchmark-authoring-expert— BenchmarkDotNet authoring — MemoryDiagnoser, warmups, Params sweeps, baselines, allocations, outlier detection.profiling-expert— Profiling — CPU/off-CPU/memory sampling, flame graphs, dotnet-trace/PerfView, eBPF, differential analysis.threading-expert— Threading/concurrency — OS threads, pools, lock-free structures, memory models, .NET Task/async, F# MailboxProcessor.hardware-intrinsics-expert— .NET hardware intrinsics — Vector128/256/512, SSE/AVX/AdvSimd, IsSupported, cache alignment, branchless SIMD.jit-codegen-expert— Query JIT codegen — Hyper/Umbra/LLVM-style pipeline fusion, .NET Reflection.Emit/DynamicMethod/Expressions.networking-expert— Networking / transport — TCP/UDP/QUIC internals, TLS, socket APIs, gRPC, load balancing, service mesh, kernel-bypass.serialization-and-wire-format-expert— Serialization / wire formats — MessagePack, Protobuf, FlatBuffers, Arrow, Parquet, schema evolution, zero-copy, fuzzing.docker-expert— Docker / containerisation — multi-stage builds, devcontainer, layer caching, pinned images, .dockerignore, Codespaces.github-actions-expert— GitHub Actions — workflow idioms, security hardening, concurrency, caching, matrix, reusable workflows, SHA pinning.devops-engineer— DevOps — install script parity, GitHub Actions design, runner pinning, least privilege, upstream PRs.alerting-expert— Alerting — AlertManager, burn-rate SLOs, alert fatigue, PagerDuty routing, runbooks, deadman switches.metrics-expert— Metrics — Prometheus, OpenMetrics, counter/gauge/histogram, cardinality, RED/USE signals, SLI, exemplars.logging-expert— "Logging — ILogger/Serilog/NLog, log levels, correlation IDs, Loki/Splunk/Datadog, PII risks, log-as-metric traps."structured-logging-expert— Structured logging — OTel Logs, ECS fields, message templates, PII redaction, correlation IDs, schema-as-API.observability-and-tracing-expert— "Observability — OpenTelemetry, distributed tracing, metrics/logs/traces, sampling, continuous profiling."error-tracking-expert— Error tracking — Sentry/Rollbar fingerprinting, releases, PII in exceptions, regressions, Result-over-exception.operations-monitoring-expert— SRE operations — SLI/SLO/error budgets, on-call, incident command, runbooks, chaos engineering, toil reduction.lightlike-observability-discipline— Lightlike-substrate observability design-rule — OTel, Kubernetes, Argo, Prometheus, Git instrumentation.