Essential command-line tools and system utilities.
Use when errors occur deep in execution and you need to trace back to find the original trigger - systematically traces bugs backward through call stack, adding instrumentation when needed, to identify source of invalid data or incorrect behavior
Swift Concurrency review and remediation for Swift 6.2+. Use when asked to review Swift Concurrency usage, improve concurrency compliance, or fix Swift concurrency compiler errors in a feature or file.
Improve code performance without changing behavior. Use when code fails latency/throughput requirements. Covers profiling, caching, and algorithmic optimization.
Performance-focused audit that can run in background during implementation. Checks for inefficiencies, memory leaks, widget rebuilds. Injects P0 findings to main agent.
Use when encountering any bug, test failure, or unexpected behavior (including race conditions, deadlocks, concurrency issues) - four-phase framework (root cause investigation, pattern analysis, hypothesis testing, implementation) with specialized techniques for deep call stack tracing and concurrency debugging
This skill should be used when analyzing codebases, applications, databases, or systems for GDPR (General Data Protection Regulation) compliance. Use this skill when users need to audit data protection practices, identify potential compliance issues, assess data handling procedures, review privacy policies, or ensure adherence to EU data protection requirements.
Optimize Unity game performance through profiling, draw call reduction, and resource management. Masters batching, LOD, occlusion culling, and mobile optimization. Use for performance bottlenecks, frame rate issues, or optimization strategies.
Go performance optimization - profiling, benchmarks, memory management
Root cause analysis with 5 Whys methodology. Use when investigating bugs, analyzing failures, or when user mentions root cause, 5 Whys, なぜなぜ分析, 根本原因, 原因分析, symptom fix, 対症療法.
Expert in Python development with focus on best practices, testing, and modern Python features
Write and execute Python scripts using the IDA Domain API for reverse engineering. Analyze binaries, extract functions, strings, cross-references, decompile code, work with IDA Pro databases (.i64/.idb). Use when user wants to analyze binaries, reverse engineer executables, or automate IDA Pro tasks.
Systematic approach to analyzing compiled binaries, understanding program behavior, and identifying vulnerabilities without source code access
Check if a Gravatar exists for an email address. Use when the user wants to verify if someone has a Gravatar, check avatar availability, or validate email addresses against Gravatar's database.
Generate comprehensive predicates and orders for domain types using typeclass patterns
JavaScript domain extension with skill domains, module applicability, and workflow integration
Fast semantic code navigation via LSP. Load FIRST before ANY code task - even 'simple' ones. Trigger scenarios: (1) fixing lint/type/pyright/mypy warnings or errors, (2) fixing reportAny/reportUnknownType/Any type errors, (3) adding type annotations, (4) refactoring or modifying code, (5) finding where a function/class/symbol is defined, (6) finding where a symbol is used/referenced/imported, (7) understanding what a function calls or what calls it, (8) exploring unfamiliar code or understanding architecture, (9) renaming symbols across codebase, (10) finding interface/protocol implementations, (11) ANY task where you'd use ripgrep to find code or read-file to view a function. Use `leta show SYMBOL` instead of read-file, `leta refs SYMBOL` instead of ripgrep for usages, `leta grep PATTERN` instead of ripgrep for definitions, `leta files` instead of list-directory.
Create IDAPython plugins for IDA Pro 9.x with HCLI-compatible packaging. Use when user wants to build IDA plugins with UI (dockable widgets, dialogs, menus, choosers), actions, keybindings, event hooks, or settings. Generates complete plugin code and manifest for installation via hcli.
Apply token optimization when writing docs, changelogs, MCP tasks. Quality
Use when creating Mermaid diagrams - covers flowcharts, sequence diagrams, and AST visualization
Guidelines for adding functionality to the @monque/core package. Use this when implementing new features, fixing bugs, or refactoring code in the core package.
Emacs Lisp package development standards and conventions
