Performance
Performance profiling and optimization
codex-sdk
by BjornMelin
Architect-level guidance, workflows, and scripts for building agentic coding systems with OpenAI Codex. Use for Codex SDK (@openai/codex-sdk) threads + streaming JSONL events; Codex CLI automation (codex exec, output schema, JSONL, resume); MCP server usage (codex mcp-server) and dynamic tool integration; multi-agent orchestration with OpenAI Agents SDK (handoffs, gating, tracing); durable state, caching, and memory using SQLite; safe-by-default sandbox/approval patterns and execpolicy rules.
nextdns-ui
by tuanductran
NextDNS Web UI configuration and management best practices. This skill should be used when
vitest-dev
by BjornMelin
World-class Vitest QA/test engineer for TypeScript + Next.js (local + CI performance focused)
nginx
by fellipeutaka
Nginx web server and reverse proxy expert: configuration, reverse proxying, load balancing, SSL/TLS termination, rate limiting, caching, gzip compression, WebSocket proxying, and security hardening. Use for nginx.conf creation/review, performance tuning, HTTPS setup, upstream configuration, and troubleshooting.
python-integrations-resilience
by ahgraber
Use when building or reviewing external API integrations in Python — designing client boundaries, defining outbound reliability policy, or structuring contract tests. Also use when provider SDK details leak into domain logic, outbound calls lack timeout/retry policy, or failure paths are untested.
session-recap
by mseok
"End-of-session checklist. Checks for uncommitted changes, offers to update focus, project docs, context, and session log. Replaces the old stop reminder flow."
python-concurrency-performance
by ahgraber
Use when designing or reviewing concurrent Python code — selecting between asyncio, threads, or multiprocessing; structuring cancellation and deadline propagation; bounding fan-out and backpressure. Also use when diagnosing race conditions, deadlocks, slow throughput, or thread/task leaks under load.
interview-writer
by ArcBlock
AI 采访式内容创作系统。不是人写，也不是 AI 自动写，而是 AI 分析后采访人再按人的风格写。通过问答不断沉淀用户画像（观点、写作风格、思考逻辑），持续迭代演进。支持博客、社交媒体、观点文章等场景。
role-algorithms:data-structures
by rnavarych
Implements and selects optimal data structures — hash tables (chaining, open addressing, Robin Hood, cuckoo), balanced BSTs (AVL, Red-Black, B-trees), heaps (binary, Fibonacci, pairing), tries, skip lists, segment trees, Fenwick trees, Bloom filters, Count-Min Sketch, HyperLogLog, and Union-Find. Use when choosing structures for performance constraints, implementing custom collections, or optimizing memory access patterns.
role-architect:capacity-planning
by rnavarych
Capacity planning expertise including traffic estimation, resource sizing, growth modeling, peak load planning, infrastructure runway calculation, and load testing correlation.
role-aqa:performance-testing
by rnavarych
Performance test design and execution with k6 (JavaScript, cloud execution, thresholds), JMeter (GUI, distributed), Gatling (Scala DSL), and Artillery (YAML config). Load, stress, soak, and spike testing. Baselines, bottleneck analysis, CI performance gates, custom metrics, and result analysis.
r3f-lighting
by EnzeD
React Three Fiber lighting - light types, shadows, Environment component, IBL. Use when adding lights, configuring shadows, setting up environment lighting, or optimizing lighting performance.
notebook-debugger
by dangeles
Use when encountering Jupyter notebook errors including kernel crashes, environment conflicts, import errors, memory issues, or data pipeline failures in notebooks
performance-expert
by personamanagmentlayer
Expert-level performance optimization, profiling, benchmarking, and tuning
systems-architect
by dangeles
Use when designing software architecture for bioinformatics pipelines, defining data structures, planning scalability, or making technical design decisions for complex systems.
essay-voice-matcher
by dangeles
Use when written text needs evaluation against a user's writing style profile and sample essays for voice consistency during essay pipeline execution.
mongodb-expert
by personamanagmentlayer
Expert-level MongoDB database design, aggregation pipelines, indexing, replication, and production operations
tableau-expert
by personamanagmentlayer
Expert-level Tableau Desktop/Server, calculated fields, LOD expressions, dashboards, data blending, and performance optimization
automotive-expert
by personamanagmentlayer
Expert-level automotive systems, connected vehicles, fleet management, telematics, ADAS, and automotive software
project-memory
by SpillwaveSolutions
Set up and maintain a structured project memory system in docs/project_notes/ that tracks bugs with solutions, architectural decisions, key project facts, and work history. Use this skill when asked to "set up project memory", "track our decisions", "log a bug fix", "update project memory", or "initialize memory system". Configures both CLAUDE.md and AGENTS.md to maintain memory awareness across different AI coding tools.
marketing
by aviflombaum
Marketing funnel modeling and conversion metrics. Use for ad spend analysis, CPM/CPC optimization, landing page conversions, waitlist economics, and funnel modeling. Triggers on "ad spend", "cpm", "cpc", "conversion rate", "landing page", "waitlist", "funnel".
monitor-config
by aviflombaum
This skill should be used when the user asks to configure, optimize, or troubleshoot their display/monitor setup. Triggers on "optimize my monitors", "configure displays", "rotate monitor", "set up my screens", "display settings", "monitor resolution", or any request to adjust multi-monitor arrangements, resolutions, refresh rates, or orientations on macOS.
business
by aviflombaum
SaaS unit economics and growth strategy. Use for LTV, CAC, MRR/ARR analysis, payback period, churn analysis, Rule of 40, and SaaS financial modeling. Triggers on "unit economics", "ltv", "cac", "mrr", "arr", "churn", "saas metrics".
multi-agent-patterns
by Svenja-dev
Design multi-agent architectures for complex tasks. Use when single-agent context limits are exceeded, when tasks decompose naturally into subtasks, or when specializing agents improves quality.