后端与 API

x402

26backend-api

Monetize any user project/service with the x402 payment protocol on platform networks (Base + Monad + Robinhood + X Layer + Solana; Starchild platform billing: pay_per_use / lifetime / weekly / monthly / quarterly / yearly / prepaid, plus multi-plan services), limited-time free promotions (amount-0 verify, no settle/debit), and pay other agents' x402 services. Use when the user wants to charge for an API/service, run a free promo on a paid listing, accept USDC from other agents, or call a paid x402 endpoint.

launchdarkly-metric-instrument

Instrument a LaunchDarkly metric event in a codebase by adding a track() call. Use when the user wants to wire up an event, instrument an action for a metric, add tracking to a feature, or confirm that an event is flowing to LaunchDarkly.

launchdarkly

projects

Guide for setting up LaunchDarkly projects in your codebase. Helps you assess your stack, choose the right approach, and integrate project management that makes sense for your architecture.

launchdarkly

built-in-metrics

Instrument an existing codebase with LaunchDarkly config tracking. Walks the four-tier ladder (managed runner → provider package → custom extractor + trackMetricsOf → raw manual) and picks the lowest-ceremony option that still captures duration, tokens, and success/error.

launchdarkly

upstash-qstash-js

Work with the @upstash/qstash TypeScript/JavaScript SDK, an HTTP-based message queue, task scheduler, and background job system for serverless and edge runtimes (Next.js, Vercel, Cloudflare Workers, Deno, Node.js). Use when publishing messages to HTTP endpoints or URL groups, running background jobs without a long-running worker process, scheduling with cron expressions, delaying messages, building FIFO queues with parallelism and flow control, configuring retries and callbacks, handling a dead letter queue (DLQ), deduplicating messages, fanning out to multiple endpoints, verifying QStash webhook signatures (Next.js App Router, Pages Router, and Edge Runtime), running a local QStash dev server, or migrating regions. Also use when the user asks for a serverless cron job, async task queue, job scheduler, delayed delivery, webhook delivery with retries, or event-driven messaging between services.

upstash

upstash-workflow-js

Work with the @upstash/workflow TypeScript/JavaScript SDK for durable, long-running workflows in serverless functions, multi-step processes that survive timeouts, retries, and restarts (built on QStash). Use when defining a workflow endpoint with serve(), running steps with context.run, sleeping for minutes to days without holding a function open, calling external APIs with context.call, waiting for an external event or webhook, invoking other workflows, configuring retries, failure callbacks, and a DLQ, controlling concurrency, rate, and parallelism, triggering, cancelling, or inspecting runs with the Workflow client, building AI agents and orchestrators, human-in-the-loop approvals, realtime updates, local development with the QStash dev server, adding middleware, or migrating workflows safely. Also use when the user asks for durable execution, step functions, saga or orchestration patterns, background jobs with checkpoints, or long-running tasks on Vercel, Next.js, Cloudflare Workers, or other serverless platforms.

upstash

plantuml-skill

24backend-api

Use when user requests diagrams, flowcharts, sequence diagrams, class diagrams, component diagrams, ER diagrams, architecture charts, or visualizations — including generating a diagram from existing source code, or rendering/extracting PlantUML embedded in a Markdown file to images (e.g. preparing docs for Confluence/Notion). Also use proactively when explaining systems with 3+ components, APIs, data flows, or class hierarchies. Generates .puml files and exports to PNG/SVG via Kroki API (no local install required).

agents365-ai

worldcup

24backend-api

FIFA World Cup 2026 — match schedules, live scores, results, and the prediction game (place/cancel bets with points, betting stats, leaderboard). Use whenever the user mentions the World Cup: today's / upcoming / live / finished matches, a specific match, placing or cancelling a prediction, staking points, their betting balance or win rate, or the predictor leaderboard.

image-bg-remove

Background removal: transparent PNGs, cutouts, product photos, portraits, pets, group photos. Uses dedicated Bria RMBG 2.0 model — no prompt needed, fast (~3s), cheap ($0.01). Use when removing backgrounds, creating transparent PNGs, making cutouts, extracting foreground subjects, or preparing images for compositing.

image-tryon

Virtual try-on: clothing, accessories, hairstyles, makeup, glasses, hats, shoes, watches. Use when the user wants to see how an item looks on a person — e.g. "try on this dress", "put these glasses on me", "show me with this hairstyle", "what would I look like in this outfit".

video-analysis

"Video understanding for any model \u2014 native passthrough for small\

workflow-automation

List, inspect, create, update, and delete HubSpot workflows (v4 flows API) from the `hubspot` agent CLI, not the `hs` developer CLI.

hubspot

audience-targeting

Build a targeted contact segment by filtering on lifecycle, engagement, jobtitle, geography, or firmographics — then export it as JSONL for a campaign or downstream tool.

hubspot

quote-to-cash

Build the product catalog, assemble quotes (line items + associations to deals), and track invoices and subscriptions through to revenue.

hubspot

image-ecommerce

E-commerce product photography: white-background hero shots, lifestyle scenes, flat lay, detail close-ups, packaging shots, group/collection displays, scale references, seasonal/holiday themes, 360-degree views, comparison layouts, infographics, and platform-optimized images (Amazon, Shopify, Taobao, Instagram, Xiaohongshu, Etsy, eBay). Use when generating professional product photos for e-commerce listings, catalogs, or marketing (e.g. product hero shot, Amazon listing image, lifestyle product photo, product on white background, product detail close-up, seasonal product campaign).

image-3d

3D-style image generation: 3D characters, product renders, isometric dioramas, 3D icons, 3D text, interior design renders, architectural visualization, 3D scenes, game assets. Use when generating 3D-style 2D images from text descriptions or reference photos (e.g. 3D character design, isometric diorama, 3D product render, interior design visualization, architectural render, 3D app icon, 3D text effect, game asset render).

what-leaked-about-you

Check and interpret data-breach exposure for an email, username, phone or name using Have I Been Pwned, the Pwned Passwords k-anonymity range API, DeHashed, IntelX and Snusbase. Use when checking breach or leak exposure, finding which services an account was registered with, interpreting a combolist or credential dump, assessing credential compromise, or auditing your own leaked personal data. Applies to incident response and account-takeover triage, executive and VIP protection, pre-employment and vendor risk screening, and personal privacy audits. Reference at useosint.com/skills/what-leaked-about-you.

useosint

hunt-a-handle

Enumerate a username across hundreds of platforms with sherlock, maigret and WhatsMyName, then correlate and confirm which accounts genuinely belong to the same person. Use for username OSINT and handle enumeration, "find all accounts for this username", cross-platform account correlation, nickname and screen-name pivots, or turning a handle into a real name. Applies to fraud and synthetic-identity investigation, recruitment and marketplace scam checks, trust-and-safety enforcement, insider-threat work, and personal exposure audits. Reference at useosint.com/skills/hunt-a-handle.

useosint

agentmail-cli

Operate AgentMail from a shell with the official CLI. Use when the user wants commands for listing or creating inboxes, reading or searching mail, sending or replying, managing drafts, or scripting JSON/YAML output; do not use for SDK code, MCP setup, or framework adapters.

agentmail-to

translate-pdf

Translate PDF documents to any language while preserving original structure, layout, and styling (colors, backgrounds, positions). Use when user wants to: (1) translate a PDF to another language, (2) convert PDF from one language to another, (3) create translated version of PDF document. Triggers: "translate PDF", "PDF翻译", "把PDF翻译成", "translate this PDF to Chinese/English/Japanese", "翻译成中文/英文"

wshuyi

kling-3-0

21backend-api

agentspace-so

face-swap

21backend-api

通过 `runcomfy` CLI 在 RunComfy 上将人脸/角色换入视频或图像。路由涵盖社区 Wan 2-2 Animate（音频驱动的角色动画 + 身份替换）、GPT Image 2 Edit（基于参考合成的单次精确换脸）、Nano Banana Edit（批量身份保持换脸）、Flux Kontext（单参考高保真局部人脸编辑）和 Kling 2-6 Motion Control Pro（将一段表演的动作迁移到目标角色上）。根据用户的实际意图选择正确的模型——单张图片 vs 视频、完整角色 vs 仅换脸、对话场景 vs 无声动作。触发词包括“换脸”、“交换人脸”、“deepfake”、“人脸替换”、“角色替换”、“换头”、“把 X 的脸放到 Y 上”、“让这个视频的主角变成 X”、“替换这个视频中的演员”、“交换照片中的角色”、“deepfake 视频”、“ReActor 替代品”，或任何明确要求将一个身份替换为另一个身份的请求。

agentspace-so

video-inpainting

21backend-api

agentspace-so