Frontend

Guide for recovering lost Git commits, resolving detached HEAD states, and fixing common Git repository issues. This skill should be used when users need help recovering from Git mistakes such as lost commits, detached HEAD situations, accidental resets, or when commits appear to be missing from branches.

Guide for debugging crashes related to custom memory heaps, particularly use-after-free issues caused by static destruction ordering, DEBUG vs RELEASE discrepancies, and custom allocator lifecycle problems. This skill should be used when investigating crashes that occur only in RELEASE builds, memory-related crashes involving custom allocators, static initialization/destruction order issues, or use-after-free bugs in C++ applications.

Use when building Avo admin interfaces. Creates resources, actions, filters, and dashboards following Avo conventions. Fetches latest docs dynamically.

Use when applying Tailwind CSS styling to Rails views. Uses utility classes, responsive design patterns, and integrates with Rails view helpers.

Use to execute bd tasks iteratively - executes one task, reviews learnings, creates/refines next task, then STOPS for user review before continuing

Apply first-principles thinking to break down complex problems into fundamental truths and rebuild solutions from the ground up. Use when solving strategic decisions, breaking through blockers, or challenging assumptions. Triggers on first principles, Elon Musk methodology, fundamental truths, strip assumptions, physics of the problem, rebuild from scratch.

Guidance for extracting secrets from protected or obfuscated binaries through systematic static and dynamic analysis. This skill should be used when tasks involve reverse engineering executables, extracting hidden flags or keys, analyzing binary protections, or decoding obfuscated data within compiled programs.

Create distinctive, production-grade frontend interfaces with high design quality. Use when building web components, pages, or applications. Includes framework-specific guidance for Tailwind, React, Vue, and Rails/Hotwire ecosystems.

Guidance for building and installing Cython extension packages, particularly when resolving compatibility issues with modern Python and NumPy versions. This skill applies when installing legacy Cython packages, fixing NumPy 2.0 deprecation errors, resolving Python 3.x compatibility issues in extension modules, or troubleshooting Cython compilation failures. Use this skill for tasks involving setup.py with Cython extensions, deprecated NumPy type errors, or installing packages to system Python environments.

Guidance for sanitizing git repositories by identifying and removing sensitive credentials, API keys, tokens, and other secrets. This skill should be used when tasks involve cleaning repositories of secrets, preparing code for public release, auditing for credential exposure, or removing sensitive data from version control history.

Test klaude-code interactively using tmux with synchronous task completion. Use when testing UI features, verifying changes, or debugging interactive behavior. Eliminates polling/sleep by using KLAUDE_TEST_SIGNAL for precise synchronization.

Provides systematic approaches for solving multi-person scheduling problems with complex constraints. This skill should be used when finding meeting times, scheduling events, or solving optimization problems involving multiple calendars, availability windows, time-based constraints, preferences, and buffer requirements.

Guidance for setting up Git-based web deployment systems where pushing to a Git repository automatically deploys content to a web server. This skill should be used when tasks involve configuring bare Git repositories with post-receive hooks for automated web deployment, setting up lightweight web servers to serve deployed content, or creating Git-push-to-deploy workflows. Covers service persistence, permission management, and verification strategies.

This skill guides writing Ansible playbooks for server configuration. Use when hardening servers, installing packages, or automating post-provisioning tasks that cloud-init cannot handle.

Native HTML dialog patterns for Rails with Turbo and Stimulus. Use when building modals, confirmations, alerts, or any overlay UI. Triggers on modal, dialog, popup, confirmation, alert, or toast patterns.

Research and compile effective organic traffic and customer acquisition methods for new websites with zero ad spend. Includes traffic sources, community strategies, cold outreach scripts, and 30-day action plans with success stories.

This skill guides writing comprehensive RSpec tests for Ruby and Rails applications. Use when creating spec files, writing test cases, or testing new features. Covers RSpec syntax, describe/context organization, subject/let patterns, fixtures, mocking with allow/expect, and shoulda matchers.

Guidance for implementing path tracers and ray tracers to reconstruct or generate images. This skill applies when tasks involve writing C/C++ ray tracing code, reconstructing images from reference images, or building rendering systems with spheres, shadows, and procedural textures. Use for image reconstruction tasks requiring similarity matching.

Guidance for building POV-Ray (Persistence of Vision Raytracer) from source, particularly legacy versions like 2.2. This skill should be used when tasked with downloading, compiling, and installing POV-Ray from source archives. It covers handling legacy C code, compressed archive formats, build system navigation, and verification strategies for successful compilation.

Guidance for bypassing HTML/JavaScript sanitization filters in security testing contexts. This skill should be used when tasked with finding XSS filter bypasses, testing HTML sanitizers, or exploiting parser differentials between server-side filters and browsers. Applies to CTF challenges, authorized penetration testing, and security research involving HTML injection and JavaScript execution through sanitization bypasses.