Skill Claude CodeCodex
Use this skill any time a .pptx or .potx file is involved in any way — as input, output, or both. This includes: creating slide decks, pitch decks, or presentations; reading, parsing, or extracting text from any .pptx or .potx file (even if the extracted content will be used elsewhere, like in an email or summary)…
Skill Claude CodeCodex
Create new skills, modify and improve existing skills, and measure skill performance. Use when users want to create a skill from scratch, edit, or optimize an existing skill, run evals to test a skill, benchmark skill performance with variance analysis, or optimize a skill's description for better triggering accuracy.
Agent
Analyze blind comparison results to understand WHY the winner won and generate improvement suggestions.
Agent
Compare two outputs WITHOUT knowing which skill produced them.
Agent
Evaluate expectations against an execution transcript and outputs.
Skill Claude CodeCodex
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.".
Skill Claude CodeCodex
Toolkit for styling artifacts with a theme. These artifacts can be slides, docs, reportings, HTML landing pages, etc. There are 10 pre-set themes with colors/fonts that you can apply to any artifact that has been creating, or can generate a new theme on-the-fly.
Skill Claude CodeCodex
Suite of tools for creating elaborate, multi-component claude.ai HTML artifacts using modern frontend web technologies (React, Tailwind CSS, shadcn/ui). Use for complex artifacts requiring state management, routing, or shadcn/ui components - not for simple single-file HTML/JSX artifacts.
Skill Claude CodeCodex
Toolkit for interacting with and testing local web applications using Playwright. Supports verifying frontend functionality, debugging UI behavior, capturing browser screenshots, and viewing browser logs.
Skill Claude CodeCodex
Use this skill any time a spreadsheet file is the primary input or output. This means any task where the user wants to: open, read, edit, or fix an existing .xlsx, .xlsm, .xltx, .csv, or .tsv file (e.g., adding columns, computing formulas, formatting, charting, cleaning messy data); create a new spreadsheet from…
Skill Claude CodeCodex
Replace with description of the skill and when Claude should use it.
Skill Claude CodeCodex
Creates accessible React components for the internal admin console. Use when the user asks to add or modify a screen, form, dialog, or table in the admin app.
Skill Claude CodeCodex
Builds parameterised SQL against the ledger schema. Use when the user asks to read from or write to the accounts, postings, or journals tables.
Skill Claude CodeCodex
Drafts customer-facing release notes from merged pull requests. Use when the user asks to prepare a changelog or announce a version.
Skill Claude CodeCodex
Builds new web components. Use when the user asks to write or restyle a React component.
Skill Claude CodeCodex
Applies house styling rules to web code. Use when the user asks to write or restyle a React component.
Skill Claude CodeCodex
Organises Python import blocks. Use when the user asks to sort or clean up imports in a .py module.
Skill Claude CodeCodex
Formats Go source files. Use when the user asks to reformat, lint, or apply style rules to a .go file.
Skill Claude CodeCodex
Formats Python source files. Use when the user asks to reformat, lint, or apply style rules to a .py file.
Skill Claude CodeCodex
Reviews Python code for performance defects. Use when the user asks to profile hot paths, reduce allocations, remove N+1 database round trips, or speed up a slow endpoint.
Skill Claude CodeCodex
Reviews Python code for security defects. Use when the user asks to check code for injection, authentication bypass, unsafe deserialization, or secret leakage.
Skill Claude CodeCodex
Performs a code review pass. Use when the user asks to review code before merging.
Skill Claude CodeCodex
Reviews a diff for defects. Use when the user asks to review a pull request or inspect changes.
Skill Claude CodeCodex
Generates a new agent skill from a template. Use when the user asks to build a skill or add agent capabilities.