productivity▌

This skill provides guidance for creating sophisticated, interactive data visualisations using d3.js. D3.js (Data-Driven Documents) excels at binding data to DOM elements and applying data-driven transformations to create custom, publication-quality visualisations with precise control over every visual element. The techniques work across any JavaScript environment, including vanilla JavaScript, React, Vue, Svelte, and other frameworks.

Oracle bundles your prompt + selected files into one “one-shot” request so another model can answer with real repo context (API or browser automation). Treat output as advisory: verify against code + tests.

Framework-driven competitive analysis grounded in market realities, not feature comparison. \n \n Expands competitive set beyond direct competitors to include status quo, workarounds, and analog alternatives; helps identify the true threat (features, distribution, or business model) \n Surfaces structural asymmetries and unique advantages competitors cannot easily copy, with emphasis on grounding analysis in customer and market perspective rather than internal politics \n Flags common pitfalls:

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Implement proven backend architecture patterns for maintainable, testable, and scalable systems. \n \n Covers three core patterns: Clean Architecture (layered dependency inward), Hexagonal Architecture (ports and adapters), and Domain-Driven Design (bounded contexts, aggregates, value objects) \n Includes complete directory structures, code examples, and implementation patterns for Python backends using FastAPI, asyncpg, and similar frameworks \n Demonstrates practical separation of concerns: do

Nano Banana Pro excels at:

Create database-like views of Obsidian notes using .base files with filters, formulas, and multiple display modes. \n \n Supports four view types: table, cards, list, and map, each configurable with custom property ordering and grouping \n Define computed properties using formulas with conditional logic, date arithmetic, string formatting, and 15+ built-in functions \n Apply global or view-specific filters using tag, folder, property, date, and link conditions with AND/OR/NOT logic \n Includes s

Offload CPU-intensive tasks to background isolates while keeping Flutter UIs responsive. \n \n Provides three concurrency patterns: async / await for I/O-bound work, Isolate.run() for one-off heavy computations, and Isolate.spawn() with message passing for persistent background workers \n Includes a decision matrix to choose between async operations and isolates based on task type (I/O vs. CPU-bound) and execution frequency \n Covers three complete workflows with step-by-step task checklists: st

Security audit framework for web applications and REST APIs covering OWASP Top 10 vulnerabilities. \n \n 20 rules organized across 5 categories: Authentication & Authorization, Data Protection, Input/Output Security, Configuration & Headers, and API & Monitoring \n Covers critical vulnerabilities including injection attacks, broken access control, cryptographic failures, CSRF, SSRF, and insecure deserialization with code examples for both vulnerable and secure patterns \n Includes

Authenticated access to 40+ Binance asset and wallet management endpoints via API. \n \n Covers account info, trading status, API restrictions, and daily snapshots with optional time-range filtering \n Includes deposit and withdrawal operations with network selection, address management, and travel rule compliance for regulated entities \n Supports dust conversion, BNB burn toggles, funding wallet queries, and universal asset transfers across account types \n Requires API key and secret key auth