Mutation testing for JavaScript and friends

Mutation testing for Ruby. AI writes your code. AI writes your tests. But who tests the tests?

Installable agent skills package for ClickHouse and chdb best practices, schema design, query optimization, and data ingestion patterns.

Adversarial code review that breaks the self-review monoculture. Use when you want a genuinely critical review of recent changes, before merging a PR, or when you suspect Claude is being too agreeable about code quality. Forces perspective shifts through hostile reviewer personas that catch blind spots the author's mental model shares with the reviewer.

Install, manage, and share skills across every major coding agent — Claude Code, Cursor, Copilot, and more.

Golang data structures — slices (internals, capacity growth, preallocation, slices package), maps (internals, hash buckets, maps package), arrays, container/list/heap/ring, strings.Builder vs bytes.Buffer, generic collections, pointers (unsafe.Pointer, weak.Pointer), and copy semantics. Use when choosing or optimizing Go data structures, implementing generic containers, using container/ packages, unsafe or weak pointers, or questioning slice/map internals.

Idiomatic Golang design patterns — functional options, constructors, error flow and cascading, resource management and lifecycle, graceful shutdown, resilience, architecture, dependency injection, data handling, streaming, and more. Apply when explicitly choosing between architectural patterns, implementing functional options, designing constructor APIs, setting up graceful shutdown, applying resilience patterns, or asking which idiomatic Go pattern fits a specific problem.

Collection of free, open-source AI skills for Google Ads practitioners, designed for use with Claude Code and other AI harnesses.

A collection of Claude Code skills for marketing operations including SEO, content, email, ads, and growth planning.

Use when the Config Manager Agent reads or changes Denova presets, game modules, automations, Skills, or Agent profiles through config_read and config_apply.

Bayesian haplotype-based mutation calling