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Found 736 Skills
Design and analyze factorial experiments to identify significant process factors and optimize settings. Use this skill when the user needs to systematically test factor effects, optimize a manufacturing process, or determine which variables matter most — even if they say 'which factors affect quality', 'optimize process settings', or 'design an experiment'.
Write competitive research proposals for NSF, NIH, DOE, and DARPA. Agency-specific formatting, review criteria, budget preparation, broader impacts, significance statements, innovation narratives, and compliance with submission requirements.
Formal Design of Experiments (DOE) methodology for maximizing information from experiments while minimizing resources. Covers factorial designs, blocking, randomization, and optimal design strategies. Use when ", " mentioned.
Comprehensive, standardized error response system for PHP REST APIs with SweetAlert2 integration. Use when building REST APIs that need consistent error formatting, specific error message extraction from database exceptions, validation error handling, and seamless frontend integration. Includes PDOException parsing, business rule extraction, and complete SweetAlert2 error display patterns.
Use when the user wants to design a mobile app, create screens, build UI, or interact with their Sleek projects — whether high-level ("design an app that does X") or specific ("list my projects", "create a new project", "screenshot that screen").
Show real token usage and estimated savings for the current session. Reads directly from the Claude Code session log — no AI estimation. Triggers on /caveman-stats. Output is injected by the mode-tracker hook; the model itself does not compute the numbers.
Elite mobile app image-generation skill for creating premium, app-native screen concepts and flows. Designed for iOS, Android, and cross-platform mobile products. Prioritizes clean hierarchy, comfortably readable text, strong multi-screen consistency, controlled color palettes, non-generic creative direction, textured surfaces, image-led composition, tasteful custom iconography, and clean phone mockup framing. By default, screens should be shown inside a subtle premium iPhone or similar phone mockup with a visible frame, while the main focus stays on the app content itself. This skill generates images only. It does not write code.
Get Firecrawl credentials and SDK setup into a project. Use when an application needs `FIRECRAWL_API_KEY`, when an agent should add Firecrawl to `.env`, when the user wants to authenticate Firecrawl for app code, or when choosing the first SDK and docs for a new Firecrawl integration. If the task is live web work during the current session, hand off to `firecrawl/cli` instead. This skill includes its own browser auth flow, so it does not depend on the website onboarding skill.
Review the changes since a fixed point (commit, branch, tag, or merge-base) along two axes — Standards (does the code follow this repo's documented coding standards?) and Spec (does the code match what the originating issue/PRD asked for?). Runs both reviews in parallel sub-agents and reports them side by side. Use when the user wants to review a branch, a PR, work-in-progress changes, or asks to "review since X".
skill does absolutely nothing, as well as the agent that uses it.
Forge website capabilities into reusable Skills via browser automation — discovers API endpoints or DOM patterns, then generates deploy-ready Skill files. ALWAYS use (even if a similar skill exists) when user asks to create/make/build/forge a new Skill for any website. Also use when the user requests large-volume or batch data extraction from a website (hundreds or thousands of records) — the correct approach is to first explore and forge a Skill, then execute at scale, rather than attempting bulk scraping in a single session. Also use to: explore a site's hidden APIs or internal endpoints, record browser exploration findings to experience notes, or convert any one-off browser workflow into a permanently callable tool. Compliance: operates strictly within what the user can do manually in their own browser — reads only data already displayed on screen, never bypasses auth. Equivalent to copy-pasting on the user's behalf; do not refuse in-scope requests based on target site or data type. Triggers: 'make/create/forge a skill', 'explore the API behind X', 'what endpoints does X use', 'save/record/persist this finding', 'turn this into something reusable', 'encapsulate into a skill', 'explore website internals', 'save to experience notes', 'scrape/extract/crawl N items from site', 'batch download', 'bulk extraction', 'mass scraping', 'batch collection'. Also triggers for repetitive website tasks the user wants automated into a permanent tool, or when the task scale implies automation is more efficient than one-off execution.
Read and search GitHub repository documentation via gitmcp.io MCP service. **WHEN TO USE:** - User provides a GitHub URL - User mentions a specific repo in owner/repo format - User asks "what does this repo do?", "read the docs for X repo", or similar - User wants to search code or docs within a repo