Scripting

Guide for optimizing Python numerical computations with C extensions. This skill should be used when tasks involve creating C extensions for Python, implementing mathematical algorithms (matrix operations, linear algebra) in C, or optimizing computational bottlenecks to achieve significant speedup. Particularly relevant for portfolio risk/return calculations, scientific computing, and performance-critical code requiring validation against baseline implementations.

Guide for setting up local PyPI servers to host and serve Python packages. This skill should be used when tasks involve creating a local PyPI repository, serving Python packages over HTTP, building distributable Python packages, or testing pip installations from a custom index URL.

Guide for creating effective skills with UV + justfile structure. This skill should be used when users want to create a new skill (or update an existing skill) that extends the agent's capabilities with specialized knowledge, workflows, or tool integrations. Skills includePEP 723 compliant Python scripts managed via justfile for consistent execution.

Update all import statements, module references, string paths, and config references after moving or renaming files and modules. Handles Python, TypeScript, and JavaScript imports. Use when moving files, renaming modules, restructuring directories, or consolidating code.

Router skill for DiPeO code generation pipeline (TypeScript specs → IR → Python/GraphQL). Use when task mentions TypeScript models, IR builders, generated code diagnosis, or codegen workflow. For simple tasks, handle directly; for complex work, escalate to dipeo-codegen-pipeline agent.

Provides strategies for efficiently transforming large text files (thousands to millions of lines) using text editors like Vim, sed, or awk. This skill should be used when tasks involve bulk text transformations, CSV manipulation at scale, pattern-based edits across massive files, or when keystroke/operation efficiency is constrained. Applicable to tasks requiring macros, regex substitutions, or batch processing of structured text data.

Guidance for converting COBOL programs to modern languages (Python, Java, etc.) while preserving exact behavior and data format compatibility. This skill should be used when modernizing legacy COBOL applications, converting COBOL business logic to modern languages, or ensuring byte-for-byte output compatibility between COBOL and its replacement.

Guide for modernizing legacy Python 2 scientific computing code to Python 3 with modern libraries. This skill should be used when migrating scientific scripts involving data processing, numerical computation, or analysis from Python 2 to Python 3, or when updating deprecated scientific computing patterns to modern equivalents (pandas, numpy, pathlib).

Use for Python work with uv—envs, deps, and commands run through uv; avoid pip/venv/pip-tools; keep Justfile/CI parity with ruff, mypy, pytest.

Analyzes events through cybersecurity lens using threat modeling, attack surface analysis, defense-in-depth,zero-trust architecture, and risk-based frameworks (CIA triad, STRIDE, MITRE ATT&CK).Provides insights on vulnerabilities, attack vectors, defense strategies, incident response, and security posture.Use when: Security incidents, vulnerability assessments, threat analysis, security architecture, compliance.Evaluates: Confidentiality, integrity, availability, threat actors, attack patterns, controls, residual risk.

Use when aligning with Georgios’s default Git/GitHub conventions—cloning with gh, Conventional Commits, atomic staging, and guarded GitHub Actions for Rust/Python/TypeScript—so work matches his standard workflows.

Analyzes code to identify untested functions, low coverage areas, and missing edge cases.Use when reviewing test coverage or planning test improvements.Generates specific test suggestions with example templates following amplihack's testing pyramid (60% unit, 30% integration, 10% E2E).Can use coverage.py for Python projects.

Use when building MCP servers or clients that connect AI systems with external tools and data sources. Invoke for MCP protocol compliance, TypeScript/Python SDKs, resource providers, tool functions. Keywords: MCP, Model Context Protocol, Claude integration, JSON-RPC.

Develop the BG3 Script Extender macOS port using Ghidra for reverse engineering. Use this skill when:(1) Working on bg3se-macos port development or debugging(2) Using Ghidra to discover offsets, function addresses, or data structures in BG3(3) Implementing new Lua APIs (Ext.*, Osi.*) for macOS Script Extender(4) Porting Windows BG3SE features to macOS ARM64(5) Understanding ECS architecture, Osiris integration, or stats system(6) Analyzing ARM64 assembly or calling conventions for game hooks(7) Writing or modifying Ghidra Python scripts for BG3 analysis

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Ttampering: description: Modifying data or code maliciously targets: [dataintegrity, codeintegrity] example: "Altering transaction amounts in transit"

Stripe payment integration patterns. Use when implementing payment flows, handling webhooks, or working with subscriptions. Routes to existing patterns and provides evidence templates for payment testing.

Perform comprehensive code reviews using OpenAI Codex CLI. This skill should be used when users request code reviews, want to analyze diffs/PRs, need security audits, performance analysis, or want automated code quality feedback. Supports reviewing staged changes, specific files, entire directories, or git diffs.

CI/CD pipeline standards for GitHub Actions, GitLab CI, and deployment automation. Covers testing gates, security scanning, artifact management, and deployment strategies for reliable software delivery.

This skill should be used when the user asks to "create an agent", "add an agent", "write a subagent", "agent frontmatter", "when to use description", "agent examples", "agent tools", "agent colors", "autonomous agent", or needs guidance on agent structure, system prompts, triggering conditions, or agent development best practices for Claude Code plugins.