Backend & APIs

Reference skill for the Tiger Brokers OpenAPI TypeScript SDK: setup, market data, trading, account queries, options and real-time push subscriptions.

qusong0627/QuantMind

Use at any stage — planning, before implementing, or reviewing code that's already written — to surface high-level trade-offs that could significantly simplify the work.

ReviewStage/stage-cli

Verify probabilistic, distributional, or random behaviour empirically before changing search-engine code.

av1155/houndarr

Fetch current library/framework documentation via Context7. An agent skill from KaimingWan/oh-my-kiro.

KaimingWan/oh-my-kiro

Connect to a running Lemon or lemon-gateway BEAM node, run recompile() for hot code reload, and execute Elixir code in that live runtime via IEx remsh or rpc-eval.

z80dev/lemon

Add new AI usage providers to the OpenUsage TUI dashboard. An agent skill from janekbaraniewski/openusage.

janekbaraniewski/openusage

AWS EventBridge serverless event bus for event-driven architectures.

itsmostafa/aws-agent-skills

A skill your agent uses when building stateful per-key actors — chat rooms, multiplayer rooms, rate limiters, long-running agents, leaderboards — that need persistent in-memory + storage state…

butterbase-ai/butterbase-skills

Sets the rules and checklist for adding a new quota provider, or changing an existing adapter, in quota-axi, covering credential sources, liveness probes and tests.

kunchenguid/quota-axi

Complete module inventory of the Auth API project with file paths, dependencies, and architecture overview.

gjovanovicst/golang-auth-api

Working pattern for enterprise-edition features in Grida — the commercial/hosted concerns (entitlement, BYOD, billing) on top of the OSS core.

gridaco/grida

Guides parallel exploration of multiple implementation approaches using git worktrees.

YougLin-dev/Aha-Loop

Reviews changes in sbs/starter-domain for technology-agnostic domain logic, forbidden production dependencies, and Java 11+ compatibility.

axelixlabs/axelix

Horse/ExpxHorse integration patterns for SimpleORM — server auto-routing, client REST driver, serialization examples.

academiadocodigo/SimpleORM

Help users work with EIP-7864 Binary Merkle Tries for stateless Ethereum execution using Nethereum.Merkle.Binary (.NET).

Nethereum/Nethereum

Establish MSBuild/.NET build performance baselines before optimizing.

dotnet/skills

Add authentication and authorization to a Blazor Web App, accounting for the app's render mode.

dotnet/skills

Generate or scaffold ASP.NET Core code — Razor Pages, Blazor components, MVC controllers, views, and Minimal API endpoints — without using ASP.NET Core CLI scaffolding/code-generation tools.

dotnet/skills

Add, review, or fix JavaScript interop in Blazor components.

dotnet/skills

Send and receive SMS/MMS, handle opt-outs and delivery webhooks.

team-telnyx/ai

Use CALL-E from Codex through the calle CLI. An agent skill from hashgraph-online/awesome-codex-plugins.

hashgraph-online/awesome-codex-plugins

Wire dependency injection for a specx Python service with diwire.

maksimzayats/specx

Review security-sensitive OpenSecret changes and claims. An agent skill from MaplePrivacyLabs/Maple.

MaplePrivacyLabs/Maple

This skill should be used when the user asks about "technical decision", "what to use", "A vs B", "comparison analysis", "library selection", "architecture decision", "which one to use"…

team-attention/hoyeon

Provides advanced AWS CLI patterns for managing EC2, Lambda, S3, DynamoDB, RDS, VPC, IAM, and CloudWatch.

giuseppe-trisciuoglio/developer-kit

Implement or troubleshoot Cloudflare Email Sending and Email Routing integrations and their delivery configuration.

cloudflare/skills

Documents the Opik TypeScript SDK's layered architecture, flush and batching rules, and error-handling conventions for anyone changing code under sdks/typescript.

comet-ml/opik

Guides clean, scalable system architecture during the build phase.

rileyhilliard/claude-essentials

Create Convex queries, mutations, and actions with proper validation, authentication, and error handling.

waynesutton/markdown-site

Comprehensive guidance for integrating Jupiter APIs (Ultra Swap, Lend, Perps, Trigger, Recurring, Tokens, Price, Portfolio, Prediction Markets, Send, Studio, Lock, Routing).

sendaifun/skills

Add Stripe billing/payments to the Convex app via @convex-dev/stripe (checkout + webhook + gating).

openclaw/clawhub

Convex backend specialist. An agent skill from openclaw/clawhub.

openclaw/clawhub

Suggest the matching Convex component when the user hand-rolls a pattern it already solves (crons, sharded-counter, rate-limiter, storage, search, presence, workflow, RAG, prosemirror-sync).

openclaw/clawhub

Expert guidance for implementing FHIR servers using HAPI FHIR Plain Server framework.

aehrc/pathling

Guide for .NET MAUI apps consuming .NET Aspire-hosted backend services.

davidortinau/maui-skills

Update Python dependencies using UV. An agent skill from letsrevel/revel-backend.

letsrevel/revel-backend

Generate comprehensive, developer-friendly API documentation from code, including endpoints, parameters, examples, and best practices

davila7/claude-code-templates

Specialized skill for building production-ready serverless applications on AWS.

davila7/claude-code-templates

Specialized skill for building production-ready Discord bots.

davila7/claude-code-templates

Specialized skill for building production-ready serverless applications on GCP.

davila7/claude-code-templates

Emby API, authentication flow, rating scale, streaming, scrobbling, and video playback.

ad-repo/nullplayer

Provide Counterfact repository orientation, high-level architecture, and the canonical command reference for install/build/test/lint workflows.

counterfact/api-simulator

Query Fintel (fintel.io) institutional market data through its REST API or official MCP server.

himself65/finance-skills

Implement and review Java code changes for Micronaut framework repositories using maintainer standards, including JSpecify null-safety conventions.

micronaut-projects/micronaut-openapi

Search, install, publish, review, and update Marketplace plugins — Skills, MCP connectors, and Experts/Squads (专家/专家团) — through the unified plugin API.

Mininglamp-OSS/octo-cli

External API integration patterns, retry logic, circuit breakers, caching, rate limiting for government data APIs

Hack23/cia

Add or change a REST API resource in agent-manager-service (the Go control plane).

wso2/agent-manager

A skill your agent uses when gating a feature behind a flag, dogfooding or gradually rolling out a change, choosing between productfeatures and PostHog feature flags, adding or checking a product…

speakeasy-api/gram