Backend & API

Backend services, APIs, webhooks, and server-side tooling

816 skills available

Skills List

excalidraw-skill

excalidraw-skill

301backend-api

Programmatic canvas toolkit for creating, editing, and refining Excalidraw diagrams via MCP tools with real-time canvas sync. Use when an agent needs to (1) draw or lay out diagrams on a live canvas, (2) iteratively refine diagrams using describe_scene and get_canvas_screenshot to see its own work, (3) export/import .excalidraw files or PNG/SVG images, (4) save/restore canvas snapshots, (5) convert Mermaid to Excalidraw, or (6) perform element-level CRUD, alignment, distribution, grouping, duplication, and locking. Requires a running canvas server (EXPRESS_SERVER_URL, default http://localhost:3000).

lingzhi227 avatarlingzhi227
Get
pixijs-core-concepts

pixijs-core-concepts

293backend-api

Use this skill when understanding how PixiJS v8 renders frames: the systems-and-pipes renderer, the render loop, and how the library adapts to different environments. Covers WebGLRenderer/WebGPURenderer/CanvasRenderer selection, renderer.render() pipeline, environment detection, and pointers to per-topic deep dives. Triggers on: renderer, WebGL, WebGPU, Canvas, render loop, render pipeline, systems, environments, autoDetectRenderer.

pixijs avatarpixijs
Get
pixijs-assets

pixijs-assets

293backend-api

Use this skill when loading and managing resources in PixiJS v8. Covers Assets.init, Assets.load/add/unload, bundles, manifests, background loading, onProgress, caching, spritesheets, video textures, web fonts, bitmap fonts, animated GIFs, compressed textures, SVG as texture or Graphics, resolution detection, per-asset data options, and forcing a specific loader with the parser field (for extension-less URLs). Triggers on: Assets, Assets.load, Assets.init, loadBundle, manifest, backgroundLoad, Spritesheet, Cache, LoadOptions, unload, parser, loadParser, loadWebFont, loadBitmapFont, loadVideoTextures, GifSource, VideoSourceOptions.

pixijs avatarpixijs
Get
pixijs-ticker

pixijs-ticker

293backend-api

Use this skill when running per-frame logic or controlling the PixiJS v8 render loop. Covers Ticker.add/addOnce/remove, deltaTime vs deltaMS vs elapsedMS, UPDATE_PRIORITY ordering, maxFPS/minFPS capping, speed scaling, Ticker.shared vs new instances, per-object onRender hook, manual rendering. Triggers on: Ticker, UPDATE_PRIORITY, deltaTime, deltaMS, elapsedMS, onRender, app.ticker, maxFPS, minFPS, Ticker.shared.

pixijs avatarpixijs
Get
pixijs-filters

pixijs-filters

293backend-api

Use this skill when applying visual effects to PixiJS v8 containers via the filter pipeline. Covers built-in filters (AlphaFilter, BlurFilter, ColorMatrixFilter, DisplacementFilter, NoiseFilter), custom Filter.from() with GLSL/WGSL, options (resolution, padding, antialias, blendRequired), filterArea optimization, pixi-filters community package. Triggers on: filters, BlurFilter, ColorMatrixFilter, DisplacementFilter, NoiseFilter, Filter.from, GLSL filter, pixi-filters, filterArea.

pixijs avatarpixijs
Get
pixijs-scene-particle-container

pixijs-scene-particle-container

293backend-api

Use this skill when rendering thousands of lightweight sprites in PixiJS v8. Covers ParticleContainer with Particle instances, addParticle/removeParticle, particleChildren array, dynamicProperties (vertex, position, rotation, uvs, color), boundsArea, roundPixels, update. Triggers on: ParticleContainer, Particle, IParticle, addParticle, particleChildren, dynamicProperties, boundsArea, particle effects, constructor options, ParticleContainerOptions, ParticleOptions.

pixijs avatarpixijs
Get
pixijs-scene-dom-container

pixijs-scene-dom-container

293backend-api

Use this skill when overlaying HTML elements on the PixiJS v8 canvas. Covers DOMContainer with element, anchor, and scene-graph-driven CSS transforms, the pixi.js/dom side-effect import, DOMPipe registration, visibility sync, pointer-events handling. Triggers on: DOMContainer, pixi.js/dom, DOMPipe, HTML overlay, input on canvas, iframe overlay, DOMContainerOptions, element, anchor, constructor options.

pixijs avatarpixijs
Get
pixijs-scene-mesh

pixijs-scene-mesh

293backend-api

Use this skill when rendering custom geometry in PixiJS v8. Covers Mesh with MeshGeometry (positions, uvs, indices, topology), MeshSimple for per-frame vertex animation, MeshPlane for subdivided deformation, MeshRope for path-following textures, PerspectiveMesh for 2.5D corners. Triggers on: Mesh, MeshGeometry, MeshSimple, MeshPlane, MeshRope, PerspectiveMesh, positions, uvs, indices, topology, setCorners, constructor options, MeshOptions, MeshPlaneOptions, MeshRopeOptions, SimpleMeshOptions, PerspectivePlaneOptions.

pixijs avatarpixijs
Get
pixijs-environments

pixijs-environments

293backend-api

Use this skill when running PixiJS v8 outside a standard browser: Web Workers, OffscreenCanvas, Node/SSR, or CSP-restricted contexts. Covers DOMAdapter.set, BrowserAdapter, WebWorkerAdapter, custom Adapter interface, pixi.js/unsafe-eval for strict CSP. Triggers on: DOMAdapter, BrowserAdapter, WebWorkerAdapter, Web Worker, OffscreenCanvas, Node, headless, SSR, CSP, unsafe-eval, Adapter.

pixijs avatarpixijs
Get
pixijs-scene-gif

pixijs-scene-gif

293backend-api

Use this skill when displaying animated GIFs in PixiJS v8. Covers the pixi.js/gif side-effect import, Assets.load returning a GifSource, GifSprite playback (play/stop/currentFrame/animationSpeed), autoPlay/loop options, onComplete/onLoop/onFrameChange callbacks, GifSource sharing, clone, destroy. Triggers on: GifSprite, GifSource, pixi.js/gif, animationSpeed, currentFrame, autoPlay, onComplete, onFrameChange, constructor options, GifSpriteOptions.

pixijs avatarpixijs
Get
expo-horizon

expo-horizon

284backend-api

Software Mansion's guide for migrating Expo SDK apps to Meta Quest using expo-horizon packages. Use when adding Meta Quest or Meta Horizon OS support to an existing Expo or React Native project. Trigger on: Meta Quest, Horizon OS, Quest 2, Quest 3, Quest 3S, VR app, expo-horizon-core, expo-horizon-location, expo-horizon-notifications, build flavors for Quest, panel sizing, VR headtracking, Horizon App ID, quest build variant, isHorizonDevice, isHorizonBuild, migrate expo-location to Quest, migrate expo-notifications to Quest, Meta Horizon Store publishing, or any task involving running an Expo app on Meta Quest hardware.

software-mansion-labs avatarsoftware-mansion-labs
Get
zsxq

zsxq

274backend-api

知识星球 CLI(zsxq-cli)与底层接口完整操作指南,涵盖星球和内容管理、Skill Pay 微信支付场景。当用户提到知识星球、zsxq、小密圈、星球、登录/认证、发帖、评论、回答、编辑、删除主题、定时发布/定时任务/定时回答、投票、问答主题、markdown 正文、AI 声明(aigc/personal_perspective)、置顶、精华、标签/hashtag、成员、足迹、提问记录、分享链接、NPS 反馈、Skill Pay、微信支付、查询星球价格/续费价格/轻读价格、付费加入、续费/续期、礼品卡、付费提问、赞赏用户/主题/评论、购买轻读、购买创建星球邀请码、创建订单、group_id、topic_id、comment_id,需要登录/查看认证状态、查看/搜索/发布/编辑/管理知识星球内容、修改星球名称/简介/背景图/亮点图(星球设置)、做每日巡场 / 评论区运营 / 提问管理 / 精华与标签整理 / 运营日报周报复盘 / 生成星球日报海报图片 / 生成竖版动画视频 / 负面内容监控 / 批量打标签 / 到期成员续费关怀 / 收录主题到专栏等运营场景、拼接分享链接、直接调用底层接口(api call / api raw / call_zsxq_api)、查成员列表 / 成员到期时间 / 专栏 column 列表,或需要检查/迁移/清理旧版知识星球 skill(zsxq-shared、zsxq-group 等升级到单一 zsxq)时,必须使用本 Skill。即使只涉及单一操作(如获取 group_id、查看帖子详情、回复评论),也应触发。

unnoo avatarunnoo
Get
sentry-instrumentation-guide

sentry-instrumentation-guide

265backend-api

Decide which Sentry signal to reach for when instrumenting code — error, span, span attribute, log, or metric. Use when adding instrumentation and unsure whether something should be a log vs a span vs a metric, when deciding "what to instrument where", when reviewing instrumentation for gaps, or when a coding agent needs a rule for choosing between errors, traces, logs, and metrics. This skill decides WHAT to emit; the sentry-*-sdk skills handle HOW to set each pillar up.

getsentry avatargetsentry
Get
caido-mode

caido-mode

257backend-api

Full Caido SDK integration for Claude Code. Search HTTP history, replay/edit requests, manage scopes/filters/environments, create findings, export curl commands, and control intercept - all via the official @caido/sdk-client. PAT auth recommended.

caido avatarcaido
Get
felo-slides

felo-slides

246backend-api

Generate PPT/slides from prompts, local images, PDFs, and other files with the Felo PPT Task API. Use when users ask to create, make, generate, or export presentations or slide decks; turn an attached/local file into slides; include an original image in a PPT; or explicitly invoke /felo-slides. Handles file upload, API key checks, task creation, polling, and final ppt_url output.

felo-inc avatarfelo-inc
Get
k6-cloud-investigate-test

k6-cloud-investigate-test

243backend-api

Investigate a Grafana Cloud k6 test — describe the script, list run history, identify pass/fail status, pull raw metric time-series and log lines for one or more runs, and (if asked) safely edit the test script. Use when the user asks about a specific k6 cloud test or run, gives a `/a/k6-app/tests/<id>` or `/a/k6-app/runs/<id>` URL, asks "is this test passing", "why are my k6 tests failing", "show me metrics for run X", "show me logs for run X", or wants to add thresholds / fix a failing test. Trigger this skill even when the user doesn't explicitly say "investigate" — pasted `/a/k6-app/...` URLs, "why did run X fail", "what happened with my test", "is my test healthy", "the latest run looks weird", "checks are failing but the run says passed", or any request to diagnose a Grafana Cloud k6 run all qualify.

grafana avatargrafana
Get
zsxq-topic

zsxq-topic

238backend-api

知识星球主题管理:搜索主题、查看主题详情、发布帖子、编辑主题、发表评论、回复某条评论(楼中楼)、回答提问、删除主题;通过 api call 查看主题评论列表、设置精华、设置标签、查看自己提的问题与已回答记录。当用户需要查找内容、发帖、编辑主题、评论、回复评论、回答问题、删除主题、查看主题评论、查看自己的提问记录、或管理主题精华和标签时使用。

unnoo avatarunnoo
Get
zsxq-group

zsxq-group

238backend-api

知识星球(星球)管理:列出星球、浏览主题、查询标签、搜索成员。当用户需要查看自己加入或创建的星球、浏览星球内容、获取 group_id、查询星球标签或成员时使用。

unnoo avatarunnoo
Get
zsxq-user

zsxq-user

238backend-api

知识星球用户信息与反馈:查看当前登录用户的个人资料、查询跨星球的最近发主题足迹、提交 NPS 反馈(推荐分数 + 建议)。当用户需要查看自己的用户 ID、昵称、头像、认证状态,查看自己最近在各星球发过的主题,或向知识星球官方提交 NPS 评分/产品建议时使用。

unnoo avatarunnoo
Get
netease-music-cli

netease-music-cli

236backend-api

使用 ncm-cli 操作网易云音乐。当用户想播放歌曲、搜索歌曲、控制播放(暂停、下一首、上一首、调音量)、管理播放队列、查看播放状态、播放歌单时,使用此 skill。

netease avatarnetease
Get
stock-daily-analysis

stock-daily-analysis

235backend-api

LLM驱动的每日股票分析系统。支持A股/港股/美股自选股智能分析,生成决策仪表盘和大盘复盘报告。提供技术面分析(均线、MACD、RSI、乖离率)、趋势判断、买入信号评分。可与market-data skill集成获取更稳定的ETF数据。触发词:股票分析、分析股票、每日分析、技术面分析。

chjm-ai avatarchjm-ai
Get
k6-manage

k6-manage

235backend-api

Interact with Grafana Cloud k6 (GCk6) — manage load tests, test runs, scripts, projects, schedules, env vars, fetch metrics or logs, and run scripts locally — using the `gcx` CLI (or direct curl when gcx is unavailable). Use this skill whenever the user mentions a k6 cloud test or run, asks to list/edit/create/start/abort k6 load tests, wants to fetch logs or metrics for a test run, manage k6 project limits or schedules, run a k6 script locally or via `k6 cloud run`, or needs to call any `/cloud/v6/`, `/cloud/v5/`, or k6-app Loki endpoint against a Grafana Cloud stack. Trigger even when the user doesn't explicitly say "gcx" or "API" — phrases like "why did my k6 test fail", "show me logs for run X", "bump VUh limit on project Y", or "update my k6 script" all qualify.

grafana avatargrafana
Get
machine-learning

machine-learning

230backend-api

Machine learning development with JAX, functional programming patterns, and high-performance computing.

mindrally avatarmindrally
Get
tiktok-research

tiktok-research

230backend-api

Research high-performing TikTok videos from tracked accounts using Apify's TikTok Scraper. Identifies outlier content, analyzes top 5 videos with AI, and generates reports with actionable hook formulas. Use when asked to: - Find trending TikTok content in a niche - Research what's performing on TikTok - Identify high-performing video patterns - Analyze competitors' TikTok content - Generate content ideas from TikTok trends - Run TikTok research - Find viral TikToks - Analyze hooks and content structure Triggers: "tiktok research", "tt research", "find trending tiktoks", "analyze tiktok accounts", "what's working on tiktok", "content research tiktok", "tiktok analysis", "tiktok trends"

bradautomates avatarbradautomates
Get