Security First

Translate logistics and operations rules into optimization variables and constraints

Subtour-elimination methods for TSP, VRP, pickup/dropoff routing, and routing MIPs with binary arc variables

Exact detection thresholds for identifying malicious network patterns including port scans, DoS attacks, and beaconing behavior.

Use this skill when implementing the outer control loop for a quadrotor — position PID control (position/velocity error → thrust and desired acceleration) and trajectory planning from flight-plan waypoints (takeoff, hover, fly, land segments → smooth 15-row state matrix).

Analyze geospatial data using geopandas with proper coordinate projections

Box Least Squares (BLS) periodogram for detecting transiting exoplanets and eclipsing binaries

Transit Least Squares (TLS) algorithm for detecting exoplanet transits in light curves

Use when working with Maven build phases, goals, profiles, or customizing the build process for Java projects.

Matched filtering techniques for gravitational wave detection

Fit first-order dynamic models to experimental step response data and extract K (gain) and tau (time constant) parameters.

Implement safety interlocks and protective mechanisms to prevent equipment damage and ensure safe control system operation.

A toolkit for fuzzy string matching and data reconciliation. Useful for matching entity names (companies, people) across different datasets where spelling variations, typos, or formatting differences exist.

This skill should be considered when you need to answer reflow machine maintenance questions or provide detailed guidance based on thermocouple data, MES data or defect data and reflow technical handbooks.

Guide for translating Python collection operations to idiomatic Scala

Guide for translating Python classes, inheritance, and object-oriented patterns to Scala

Quantum mechanics simulations and analysis using QuTiP (Quantum Toolbox in Python)

Controls an isolated Browser Use Cloud browser from a sandboxed machine with the current Browser Use CLI.

CONTRIBUTOR TOOL - Track CC changelog, extract new versions since last check, analyze impact on plugin (breaking changes, opportunities, deprecations). Run periodically or before releases

Inspect LiveView socket assigns for memory bloat — missing temporary_assigns, unused assigns, unbounded lists needing streams, memory estimates

Reduce mix output noise (5-15% token savings) by installing rtk filters that compress mix test/credo/dialyzer/compile output before it reaches Claude

Narrow bare rescue in Elixir so real errors like KeyError and typos propagate instead of being swallowed. Use to audit rescues and refactor error handling.

Use when debugging how a value or request reaches Elixir code, finding who calls a function, or planning a signature change. Builds the call tree with mix xref callers instead of reading files one by one.

Execute Elixir/Phoenix plan tasks with progress tracking. Use after phx-plan

Get best practices for NUnit unit testing, including data-driven tests

Get best practices for TUnit unit testing, including data-driven tests

Get best practices for XUnit unit testing, including data-driven tests

Help the user define a concrete, measurable goal before starting work, especially when they ask to use the goal tool, create a goal, set an objective, clarify success criteria, or turn a fuzzy intention into a quantitative outcome.

Use when a user asks to debug or fix failing GitHub PR checks that run in GitHub Actions; use `gh` to inspect checks and logs, summarize failure context, draft a fix plan, and implement only after explicit approval.