Creates browser-executable JavaScript bookmarklets with strict formatting requirements. Use when users mention bookmarklets, browser utilities, dragging code to bookmarks bar, or need JavaScript that runs when clicked in the browser toolbar.

Generate navigable code maps for unfamiliar codebases. Extracts exports/imports via AST (tree-sitter) to create _MAP.md files per directory showing classes, functions, methods with signatures and line numbers. Use when exploring repositories, understanding project structure, analyzing unfamiliar code, or before modifications. Triggers on "map this codebase", "explore repo", "understand structure", "what does this project contain", or when starting work on an unfamiliar repository.

Create interactive data visualizations using Vega-Lite declarative JSON grammar. Supports 20+ chart types (bar, line, scatter, histogram, boxplot, grouped/stacked variations, etc.) via templates and programmatic builders. Use when users upload data for charting, request specific chart types, or mention visualizations. Produces portable JSON specs with inline data islands that work in Claude artifacts and can be adapted for production.

Generates git patch files from codebase modifications for local application. Use when user mentions patch, diff, export changes, bring changes back, apply locally, or after editing uploaded codebases.

Agent for validating Aspire documentation against actual behavior. Use when auditing documentation accuracy, testing examples, or identifying discrepancies between documentation and implementation.

Guidelines for producing accurate and maintainable documentation for the Aspire documentation site. Use when writing or updating user guides, integration docs, tutorials, or any content on aspire.dev.

WordPress performance code review and optimization analysis. Use when reviewing WordPress PHP code for performance issues, auditing themes/plugins for scalability, optimizing WP_Query, analyzing caching strategies, checking code before launch, or detecting anti-patterns, or when user mentions "performance review", "optimization audit", "slow WordPress", "slow queries", "high-traffic", "scale WordPress", "code review", "timeout", "500 error", "out of memory", or "site won't load". Detects anti-patterns in database queries, hooks, object caching, AJAX, and template loading.

CLI tool for automating any terminal application — TUI apps, shells, CLI tools, REPLs, and more. Use when you need to launch a process in a virtual terminal, capture its screen output, inject keystrokes or mouse input, take screenshots, record sessions, or assert on what's visible.

python's package managing

Add purposeful debug logging to improve observability without changing behavior.

Write focused pytest tests as standalone functions (one test per function), avoiding test classes.

Run the project's formatter, linters, and mypy checks in the required order, fixing issues and managing any needed stub dependencies via uv.

Inspect a repository and draft an AGENTS.md file using the standard template, capturing commands, structure, and workflow rules.

Discover and link related issues as dependencies. Searches for issues that should be connected and recommends dependency relationships to establish proper work order.

Perform structured, actionable code reviews for Python code with clear findings and suggestions.

Generate high-quality conventional git commit messages and, with user approval, run the commit. Use when drafting or refining commit messages, validating commit quality, or committing staged work while avoiding noisy histories.

Write Python docstrings following the Google Python Style Guide, using clear sections and examples.

Run smoke tests to verify extension functionality in a real VS Code environment. Use this when checking if basic features work after changes.

Generate a codebase health snapshot for technical debt tracking and planning. Analyzes git history, code complexity, debt markers, and dependencies to identify hotspots and refactoring priorities.

Run E2E tests to verify complete user workflows like environment discovery, creation, and selection. Use this before releases or after major changes.