Agent skills for Claude Code

Design an error analysis protocol to diagnose the root cause of student mistakes and misconceptions.

Design consistent error codes following the PREFIX_CATEGORY_NUMBER format.

Error and exception handling for an APIMatic-generated .NET SDK in C# — load before writing any try/catch around an SDK call, an…

Ensure user-facing errors and empty states are clear, actionable, and HIG-aligned.

How the AI communicates mistakes, uncertainty, and limitations gracefully.

Use when two error handlers sit on the same throw path and each can report to your error tracker (e.g. an inner span/critical-path/retry…

Rules for ESM-first TypeScript projects using "type": "module" with moduleResolution: "nodenext".

Automates firmware flashing, flash memory erasure, and JTAG debugging sessions for ESP32 microcontrollers using the ESP-IDF toolchain.

Pull live ESPN Fantasy Football league data including standings, rosters, matchups, free agents, settings, and projections.

Quick reference card for espresso levels and commands.

Use when starting or routing any European Sociological Review (ESR) manuscript and unsure which skill applies.

Publish essays and long-form content through a structured pipeline from draft to distribution.

Curated bundle for the full essay lifecycle from writing through multi-platform distribution.

Use when a client job, milestone, or fixed-bid deliverable has just shipped, been invoiced, or been closed out — especially when it ran…

Review construction estimates, flag missing items, validate quantities, and generate detailed cost breakdowns

Use when estimating and validating the model for a Marketing Science manuscript — running structural estimation (GMM/MLE/SMM/Bayes)…

Use when setting up file synchronization for a project, when user wants to sync local files to a remote server or backup location, or when…

Calculate ETF premium/discount vs NAV via Yahoo Finance, and decompose single-day surges into NAV-driven vs structural components (gamma…

Query Etherscan V2 API for gas prices, account transactions, balances, token transfers, contract source code, and compilation metadata via…

Competitor research — pricing comparison, bestseller analysis, differentiation strategy

Etsy Open API v3 for managing listings, orders, receipts, reviews, and OAuth token refresh, including fee calculation.