Claude Skills

Activates when errors occur during execution. Provides self-correction patterns for immediate error fixing without verbose explanations or apologies.

Verify non-English phrases in your manuscript. Checks grammar, period accuracy, dialect, and translations.

Use this agent when you need to write, review, or refactor React code following specific architectural patterns and technology choices. This includes creating new components, implementing features, fixing bugs, or modernizing existing React code to align with modern best practices using Tailwind v4, Vite, TypeScript, and the specified stack.

Comprehensive spreadsheet creation, editing, and analysis with support for formulas, formatting, data analysis, and visualization. When Claude needs to work with spreadsheets (.xlsx, .xlsm, .csv, .tsv, etc) for: (1) Creating new spreadsheets with formulas and formatting, (2) Reading or analyzing data, (3) Modify existing spreadsheets while preserving formulas, (4) Data analysis and visualization in spreadsheets, or (5) Recalculating formulas

Knowledge and utilities for creating animated GIFs optimized for Slack. Provides constraints, validation tools, and animation concepts. Use when users request animated GIFs for Slack like "make me a GIF of X doing Y for Slack."

Define and implement Service Level Indicators (SLIs) and Service Level Objectives (SLOs) with error budgets and alerting. Use when establishing reliability targets, implementing SRE practices, or measuring service performance.

Use this agent when you need to write, review, or refactor TypeScript code following specific architectural patterns without React. This includes creating functions, implementing features, fixing bugs, or modernizing existing TypeScript code to align with modern best practices using kebab-case file naming, one function per file pattern, and Bun for testing.

Production-ready Cobra CLI patterns including command structure, flags (local and persistent), nested commands, PreRun/PostRun hooks, argument validation, and initialization patterns used by kubectl and hugo. Use when building Go CLIs, implementing Cobra commands, creating nested command structures, managing flags, validating arguments, or when user mentions Cobra, CLI development, command-line tools, kubectl patterns, or Go CLI frameworks.

Explore ideas through conversation. HOUSTON asks questions, has opinions, and suggests background agents when investigation would help.

Create beautiful visual art in .png and .pdf documents using design philosophy. You should use this skill when the user asks to create a poster, piece of art, design, or other static piece. Create original visual designs, never copying existing artists' work to avoid copyright violations.

Implement comprehensive evaluation strategies for LLM applications using automated metrics, human feedback, and benchmarking. Use when testing LLM performance, measuring AI application quality, or establishing evaluation frameworks.

Serena MCP usage guide for semantic code operations, symbol manipulation, project memory, and session persistence. Use when invoking any mcp__serena__* tools, performing symbol operations (rename, find references, extract), navigating large codebases, or managing project memory/sessions.

Run line-level editing across chapters. Catches spelling, grammar, awkward phrasing, and word echoes.

Smart commit creation with conventional commits. Use when user says "commit" or requests committing changes. Handles staged file detection, suggests splits for multi-concern changes, and applies proper commit format without emoji prefixes.

Generate system health dashboard with compound engineering metrics

Search archived tickets by keywords to find related historical context.

Create and manage Claude Code skills following Anthropic best practices. Use when creating new skills, modifying skill-rules.json, understanding trigger patterns, working with hooks, debugging skill activation, or implementing progressive disclosure. Covers skill structure, YAML frontmatter (including context fork, allowed-tools, agent), trigger types (keywords, intent patterns, file paths, content patterns), enforcement levels (block, suggest, warn), hook mechanisms (UserPromptSubmit, PreToolUse), session tracking, and the 500-line rule.

Design LLM applications using the LangChain framework with agents, memory, and tool integration patterns. Use when building LangChain applications, implementing AI agents, or creating complex LLM workflows.