Knoopx

Lint JavaScript and TypeScript code, configure rules, fix issues automatically, and set up ESLint in projects. Use when linting code, fixing style issues, configuring eslint.config.js, or enforcing code quality standards.

Find unused dependencies, files, and exports in JS/TS projects. Use when cleaning up dead code, removing stale packages from package.json, or identifying unreferenced exports.

Apply software engineering best practices, design principles, and avoid common anti-patterns. Use when designing systems, reviewing code quality, refactoring legacy code, making architectural decisions, or improving maintainability.

Fetch web pages, parse HTML with CSS selectors, call REST APIs, and scrape dynamic content. Use when extracting data from websites, querying JSON APIs, or automating browser interactions.

Structure Python projects, write type-hinted code, test with pytest, and enforce quality with ruff and mypy. Use when setting up pyproject.toml, writing tests, adding type annotations, or formatting/linting code.

Convert JSON to compact TOON format for reduced token usage. Use when inspecting JSON APIs, processing large JSON payloads, or reducing token costs when sending data to LLMs.

Spawn background processes, run interactive tools detached, and capture command output using tmux sessions. Use when running long-running commands, capturing output from background processes, or managing multiple concurrent tasks.

Find duplicate code blocks and analyze duplication metrics across files. Use when identifying copy-pasted code, measuring technical debt, or preparing for refactoring.

Run containers, build images, manage pods, and configure networks with Podman. Use when starting/stopping containers, creating Containerfiles, grouping services in pods, or pruning unused resources.

Map codebase structure, query symbols, trace call paths, and analyze dependencies. Use when exploring unfamiliar code, finding function callers/callees, detecting circular imports, or generating project overviews.

Create reproducible builds, manage flake inputs, define devShells, and build packages with flake.nix. Use when initializing Nix projects, locking dependencies, or running nix build/develop commands.

Write scripts, process structured data, and automate tasks with nu-shell pipelines. Use when filtering tables, transforming JSON/CSV/YAML, defining custom commands, or scripting with typed parameters.