Blockchain

Phase-aware context management for coder agents to prevent token bloat through checkpoint/restore pattern

Use when writing tests or implementing code. Defines RED-GREEN-REFACTOR cycle and test execution workflow.

Implements database integration patterns for Rust backends using SQLx and SeaORM. Use when setting up database connections, writing queries, defining entities, managing migrations, or configuring connection pools. Covers compile-time checked SQL, ORM patterns, and N+1 prevention.

Use when the user has chosen a direction and wants to define architecture, planning, structure, or implementation. Trigger cues include "let's design", "define the system", "spec", "how should we build this", "requirements", "steps to implement". Your goal is to turn the selected idea into a clear, validated design.

Draft outcome-oriented OKRs with leading indicators and initiatives tied to the product strategy.

UI component definitions for the East language. Use when building UIs with @elaraai/east-ui. Triggers for: (1) Creating UI components with Stack, Box, Grid, Card, Text, Button, (2) Building forms with Input, Select, Checkbox, Switch, Slider, (3) Displaying data with Table, DataList, Chart, Badge, Tag, Stat, (4) Using overlays like Dialog, Drawer, Popover, Tooltip, Menu, (5) Working with UIComponentType, (6) Styling with variants (FontWeight, TextAlign, ColorScheme, Size).

Build Apify Actors (web scrapers) using Node.js and Crawlee. Use when creating new scrapers, defining input schemas, configuring Dockerfiles, or deploying to Apify. Triggers include apify, actor, scraper, crawlee, web scraping, data extraction.

Modern authentication and security patterns for web applications. Expert in JWT tokens, OAuth2 flows, session management, RBAC, MFA, API security, and zero-trust architectures. Framework-agnostic patterns that work with any tech stack.

CRITICAL: Use this skill when working with Prisma database models, API routes with includes/relations, or debugging "500 errors", "relation not found", "undefined from backend" errors.AUTO-ACTIVATE when user mentions (FR/EN): - prisma, relation, relations, mapping, PascalCase, camelCase - API 500, erreur 500, backend error, erreur backend - undefined, null, relation introuvable, relation not found - créer API, create API, endpoint, route API - include, select, findMany, findUnique, create, update - OperatingRoom, OperatingSector, Personnel, Assignment, SiteThis skill contains the COMPLETE mapping table for post-PascalCase migration (Oct 26, 2025). ALL 121 models with correct relation names and required fields.

Use when implementing Nostr Wallet Connect (NIP-47) wallet service - provides complete patterns for generating NWC connection strings, publishing info events, listening for requests, processing wallet commands, and sending encrypted responses. Client-side patterns included for reference.

Guide for creating Product Requirements Documents (PRDs) following Nimble's standard. Use when creating new PRDs, defining requirements, documenting features, or planning product releases. Covers structure, AI-friendly formatting, requirement IDs, and all PRD sections.

This skill should be used when designing context management, implementing tiered fidelity, reducing token waste, applying Four Laws patterns, creating "NOT PASSED" sections, optimizing agent context, or debugging context-related issues. Provides SOTA patterns for context-efficient multi-agent systems achieving 60-80% token reduction.

UI design system toolkit for Senior UI Designer including design token generation, component documentation, responsive design calculations, and developer handoff tools. Use for creating design systems, maintaining visual consistency, and facilitating design-dev collaboration.

Guide for creating and configuring custom OpenCode commands. Use this skill when you need to extend OpenCode capabilities, add custom workflows, or understand how to define commands with templates, arguments, and context injection.

Use when creating git commits. Defines conventional commit format and message structure guidelines.

Precise token counter for GPT, Claude, and Gemini models (source of truth from software kernel)

Implement secure authentication with JWT, sessions, OAuth, and password hashing. Use when adding login/logout, token auth, or integrating OAuth providers.

Execute tests from persistent test cases. Reads ./tests/ directory, runs cleanup, wallet setup (if Web3), executes tests, and generates report.

Network security, cryptography, vulnerability assessment, and ethical hacking.

Create and manage database migrations with reversible changes, zero-downtime deployments, and proper version control practices. Use this skill when creating database migration files, schema change scripts, or any files that modify database structure. Use this when writing migration files with up/down methods, implementing rollback strategies, creating or modifying database tables, adding or removing columns, creating indexes, or handling data migrations separately from schema changes. Use this when working on files in migration directories like db/migrate/, migrations/, or database/migrations/, or when modifying schema definition files.