Performance optimization rules for THREE.js and graphics programming. Covers mobile-first optimization, fallback patterns, memory management, render loop efficiency, and general graphics best practices for smooth 60fps experiences across devices.
Firmware extraction and IoT security analysis (RE Level 5) for routers and embedded systems. Use when analyzing IoT firmware, extracting embedded filesystems (SquashFS/JFFS2/CramFS), finding hardcoded credentials, performing CVE scans, or auditing embedded system security. Handles encrypted firmware with known decryption schemes. Completes in 2-8 hours with binwalk+firmadyne+QEMU emulation.
Master of high-performance web map implementations handling 5,000-100,000+ geographic data points. Specializes in Leaflet.js optimization, Supercluster algorithms, viewport-based loading, canvas rendering, and progressive disclosure UX patterns.
Fast binary analysis with string reconnaissance and static disassembly\ \ (RE Levels 1-2). Use when triaging suspicious binaries, extracting IOCs quickly,\ \ or performing initial malware analysis. Completes in \u22642 hours with automated\ \ decision gates."
Advanced binary analysis with runtime execution and symbolic path exploration (RE Levels 3-4). Use when need runtime behavior, memory dumps, secret extraction, or input synthesis to reach specific program states. Completes in 3-7 hours with GDB+Angr.
This skill automates the capture of high-quality screenshots for MicroSim visualizations using Chrome headless mode. Use this skill when working with MicroSims that need preview images for social media sharing, documentation, or quality assessment. The skill handles JavaScript-heavy visualizations that require proper rendering time and external CDN resources.
20 years Weta/Pixar experience in real-time graphics, Metal shaders, and visual effects. Expert in MSL shaders, PBR rendering, tile-based deferred rendering (TBDR), and GPU debugging. Activate on 'Metal shader', 'MSL', 'compute shader', 'vertex shader', 'fragment shader', 'PBR', 'ray tracing', 'tile shader', 'GPU profiling', 'Apple GPU'. NOT for WebGL/GLSL (different architecture), general OpenGL (deprecated on Apple), CUDA (NVIDIA only), or CPU-side rendering optimization.
OCaml memtrace profiling for allocation hotspot analysis. Use when Claude needs to: (1) Add memtrace instrumentation to OCaml executables, (2) Run targeted benchmarks with tracing enabled, (3) Identify allocation hotspots from trace output, (4) Optimize code to reduce boxing and allocations, (5) Validate optimizations with before/after comparisons
CPU profiling, benchmarking, and memory analysis for Rust applications. Use when code is slow, memory usage is high, or optimization is needed.
Use when creating performance optimization plan for backend, API, or general system performance. Enforces BASELINE → PROFILE → OPTIMIZE → VALIDATE sequence. Triggers: "optimize API", "backend slow", "API latency", "database performance", "query optimization", "server response time". For "Core Web Vitals" in backend/API context, use this skill. For frontend UI accessibility + performance (WCAG, Lighthouse accessibility), use frontend-production-quality instead. If thinking "bottleneck is obvious" - profile first.
Use when asked to document architecture, understand system structure, create diagrams, or analyze component relationships. Focuses on interfaces and high-level design. Triggers on: "use architecture mode", "architecture", "system design", "how is this structured", "document the system", "create a diagram", "high-level overview", "component diagram". Read-only mode for analysis, can create documentation files.
Expert database optimizer specializing in query optimization, performance tuning, and scalability across multiple database systems. Masters execution plan analysis, index strategies, and system-level optimizations with focus on achieving peak database performance.
Debug LangChain and LangGraph agents by fetching execution traces from LangSmith Studio. Use when debugging agent behavior, investigating errors, analyzing tool calls, checking memory operations, or examining agent performance. Automatically fetches recent traces and 分析s execution patterns. Requires langsmith-fetch CLI installed.
Expert developer experience optimizer specializing in build performance, tooling efficiency, and workflow automation. Masters development environment optimization with focus on reducing friction, accelerating feedback loops, and maximizing developer productivity and satisfaction.
Compare production WordPress sites against their baked static versions to find differences. Use when testing Bake deployments, checking for missing assets, broken styles, console errors, or any visual/functional discrepancies between production and static sites. Triggers on requests to compare sites, verify bake output, check for differences, or test static deployments.
Specialized Native AOT, trimming, and optimization expert for morphir-dotnet. Expert in single-file trimmed executables, AOT compilation, size optimization, and guiding toward AOT-compatible features. Use when troubleshooting compilation, diagnosing trimming issues, optimizing binary size, implementing reflection workarounds, or maintaining best practices. Triggers include "AOT", "Native AOT", "trimming", "single-file", "size optimization", "reflection error", "IL2026", "IL3050", "PublishAot", "PublishTrimmed", "source generator", "Myriad".
Fast code/plan review for quality, security, and tests. Use for quick reviews before deeper analysis.
Systematic debugging with hypothesis-driven investigation. Use when something is broken, tests are failing, unexpected behavior occurs, or errors need investigation. Triggers on: "this is broken", "debug", "why is this failing", "unexpected error", "not working", "bug", "fix this issue", "investigate", "tests failing", "trace the error", "use debug mode". Full access mode - can run commands, add logging, and fix issues.
Deep code/plan review for architecture, subtle bugs, and test quality. Use after sonnet review for thorough analysis.
False positive filtering for Weasel static analysis results. Triggers on weasel filter, weasel triage, or weasel clean report.
