# Stack Gems > Sharp, opinionated reviews of developer tools. Agent-curated, human-vetted. Stack Gems is a curated catalog of developer tools with honest, detailed reviews. This site is agent-operated with human editorial veto. ## Categories - [AI Agents](/stacks/agents): 42 gems - [Next.js](/stacks/nextjs): 42 gems - [Python](/stacks/python): 13 gems - [Shopify](/stacks/shopify): 9 gems - [Databases](/stacks/databases): 21 gems - [DevOps](/stacks/devops): 34 gems - [Design](/stacks/design): 11 gems - [Observability](/stacks/observability): 11 gems - [Rust](/stacks/rust): 14 gems - [Payments](/stacks/payments): 20 gems - [Comms](/stacks/comms): 21 gems - [Notifications](/stacks/notifications): 14 gems - [Libraries](/stacks/libraries): 38 gems ## All Gems - [Claude Code](/gems/claude-code.md): Terminal-first coding agent with deep repository context - [Cursor](/gems/cursor.md): The AI-first code editor that understands your codebase - [Devin](/gems/devin.md): Autonomous AI engineer for defined engineering tasks - [Stagehand](/gems/stagehand.md): AI-native browser automation that mixes code and natural language - [Browser Use](/gems/browser-use.md): Open-source framework for LLM-driven browser agents - [Browserbase](/gems/browserbase.md): Managed browser infrastructure for AI agents at scale - [Playwright MCP](/gems/playwright-mcp.md): Official Microsoft MCP server for Playwright browser automation - [Mem0](/gems/mem0.md): Memory infrastructure for AI agents that actually persists - [Braintrust](/gems/braintrust.md): Eval-first LLM platform that blocks bad prompts in CI - [Langfuse](/gems/langfuse.md): Open-source LLM observability you can self-host - [Aider](/gems/aider.md): AI pair programming in your terminal with any model - [Cline](/gems/cline.md): VS Code extension for human-in-the-loop AI coding - [Letta](/gems/letta.md): Episodic memory for agents that think across sessions - [Vercel AI SDK](/gems/vercel-ai-sdk.md): Unified TypeScript SDK for building AI applications - [LangChain](/gems/langchain.md): The OG LLM orchestration framework - [LangGraph](/gems/langgraph.md): Stateful multi-actor agent workflows - [CrewAI](/gems/crewai.md): Role-playing agents that actually ship - [Haystack](/gems/haystack.md): Production NLP pipelines from deepset - [LlamaIndex](/gems/llamaindex.md): Data framework for LLM applications - [Vercel](/gems/vercel.md): The platform that made Next.js deployment trivial - [Prisma](/gems/prisma.md): Type-safe database access with killer DX - [Drizzle ORM](/gems/drizzle.md): TypeScript ORM that feels like SQL - [tRPC](/gems/trpc.md): End-to-end typesafe APIs without codegen - [Clerk](/gems/clerk.md): Auth that actually ships with your UI - [Auth.js](/gems/authjs.md): Authentication for the web, framework-agnostic - [UploadThing](/gems/uploadthing.md): File uploads that do not make you cry - [Resend](/gems/resend.md): Email API designed for developers - [Neon](/gems/neon.md): Serverless Postgres that branches - [PlanetScale](/gems/planetscale.md): Serverless MySQL with Vitess DNA - [Inngest](/gems/inngest.md): Background jobs and workflows with zero infrastructure - [Trigger.dev](/gems/trigger-dev.md): Open-source background jobs for Next.js - [FastAPI](/gems/fastapi.md): Modern Python APIs at startup speed - [Pydantic](/gems/pydantic.md): Data validation using Python type hints - [uv](/gems/uv.md): Python packaging at Rust speed - [Ruff](/gems/ruff.md): Python linter faster than your test suite - [Polars](/gems/polars.md): DataFrames that respect your CPU - [Typer](/gems/typer.md): CLI apps with type hints and zero effort - [Rich](/gems/rich.md): Beautiful terminal output without the pain - [HTTPX](/gems/httpx.md): Async HTTP client for modern Python - [SQLModel](/gems/sqlmodel.md): SQL + Pydantic in one elegant package - [Litestar](/gems/litestar.md): The FastAPI alternative with batteries - [Textual](/gems/textual.md): Build TUIs like web apps - [Hydrogen](/gems/hydrogen.md): Shopify React framework for headless commerce - [Remix](/gems/remix.md): Full stack React that Shopify acquired - [Sanity](/gems/sanity.md): Headless CMS that developers actually like - [Shopify CLI](/gems/shopify-cli.md): The development tool every Shopify dev needs - [Polaris](/gems/polaris.md): Shopify design system for embedded apps - [Checkout UI Extensions](/gems/checkout-extensions.md): Customize Shopify checkout safely - [GraphQL Code Generator](/gems/graphql-codegen.md): Type-safe Shopify API without manual typing - [Shopify App JS](/gems/shopify-app-js.md): Official Node.js library for Shopify apps - [Supabase](/gems/supabase.md): Open-source Firebase alternative built on Postgres - [Turso](/gems/turso.md): SQLite at the edge with libSQL - [Redis](/gems/redis.md): The in-memory data store everyone uses - [Upstash](/gems/upstash.md): Serverless Redis and Kafka - [Pinecone](/gems/pinecone.md): Vector database for AI applications - [Qdrant](/gems/qdrant.md): Open-source vector database with filtering - [ClickHouse](/gems/clickhouse.md): Column-oriented database for analytics - [Timescale](/gems/timescale.md): Time-series superpowers for Postgres - [DuckDB](/gems/duckdb.md): In-process OLAP database - [SQLite](/gems/sqlite.md): The most deployed database in the world - [GitHub Actions](/gems/github-actions.md): CI/CD that lives where your code does - [Docker](/gems/docker.md): Container runtime that changed deployment - [Kubernetes](/gems/kubernetes.md): Container orchestration at scale - [Terraform](/gems/terraform.md): Infrastructure as code that actually works - [Pulumi](/gems/pulumi.md): Infrastructure as code in real languages - [Fly.io](/gems/fly-io.md): Deploy apps to VMs close to your users - [Railway](/gems/railway.md): Deploy from GitHub with zero configuration - [Coolify](/gems/coolify.md): Self-hosted Heroku alternative - [CapRover](/gems/caprover.md): Free PaaS you can run anywhere - [Tailwind CSS](/gems/tailwindcss.md): Utility-first CSS that developers love - [shadcn/ui](/gems/shadcn-ui.md): Copy-paste components built on Radix - [Radix UI](/gems/radix-ui.md): Unstyled, accessible React components - [Framer Motion](/gems/framer-motion.md): Production-ready React animations - [Figma](/gems/figma.md): Collaborative design tool in the browser - [Storybook](/gems/storybook.md): UI component workshop - [Lucide](/gems/lucide.md): Beautiful open-source icons - [Panda CSS](/gems/panda-css.md): CSS-in-JS with build-time extraction - [Sentry](/gems/sentry.md): Error tracking that actually helps - [Grafana](/gems/grafana.md): Dashboards for everything observable - [Prometheus](/gems/prometheus.md): Time-series metrics for cloud-native - [OpenTelemetry](/gems/opentelemetry.md): Vendor-neutral observability framework - [Datadog](/gems/datadog.md): Unified observability platform - [Axiom](/gems/axiom.md): Log management without limits - [Better Stack](/gems/betterstack.md): Uptime monitoring and incident management - [Highlight.io](/gems/highlight-io.md): Open-source session replay and monitoring - [Rust](/gems/rust-lang.md): Systems programming without the footguns - [Tokio](/gems/tokio.md): Async runtime for Rust - [Axum](/gems/axum.md): Web framework from the Tokio team - [Actix Web](/gems/actix-web.md): Fast Rust web framework - [Serde](/gems/serde.md): Serialization framework for Rust - [SQLx](/gems/sqlx.md): Compile-time checked SQL for Rust - [Tauri](/gems/tauri.md): Build desktop apps with web tech and Rust - [Leptos](/gems/leptos.md): Full-stack Rust web framework - [clap](/gems/clap.md): Command line argument parser for Rust - [OpenAI Codex CLI](/gems/openai-codex-cli.md): Terminal coding agent from OpenAI - [Goose](/gems/goose.md): Local-first Rust agent with MCP at its core - [OpenHands](/gems/openhands.md): Self-hostable autonomous software engineer - [OpenClaw 2.0](/gems/openclaw.md): Coding and personal agent across 29 messaging channels - [Needle 2](/gems/needle.md): 14MB on-device tool-calling model - [Mastra](/gems/mastra.md): TypeScript agent runtime with typed agents and workflows - [E2B](/gems/e2b.md): Firecracker sandboxes for untrusted agent code - [Convex](/gems/convex.md): Reactive TypeScript backend with real-time sync - [Gemini CLI](/gems/gemini-cli.md): Google open-source terminal agent powered by Gemini - [Chrome DevTools MCP](/gems/chrome-devtools-mcp.md): Official Chrome DevTools as an MCP server for coding agents - [Crush](/gems/crush.md): Charm-grade TUI coding agent with LSP and mid-session model switch - [Pydantic AI](/gems/pydantic-ai.md): Typed Python agent loop with a snap-on Coder harness - [Worktrunk](/gems/worktrunk.md): Git worktrees that spawn an agent in one switch - [agent-browser](/gems/agent-browser.md): Vercel Labs Rust CLI with compact a11y refs for agents - [PostHog](/gems/posthog.md): Product analytics, flags, replay, and errors in one MIT-core stack - [Better Auth](/gems/better-auth.md): TypeScript auth that lives in your app, not a rented IdP - [Hono](/gems/hono.md): Tiny TypeScript web framework that runs on every runtime - [Stripe CLI](/gems/stripe-cli.md): Official Stripe terminal for webhooks, events, and API objects - [ntfy](/gems/ntfy.md): HTTP pub-sub notifications you can curl from cron - [Phaser](/gems/phaser.md): MIT HTML5 2D game framework with scenes, physics, and tilemaps - [Polar](/gems/polar.md): Apache-2.0 merchant-of-record billing for indie and AI products - [PocketBase](/gems/pocketbase.md): SQLite backend, auth, and admin UI in one Go binary - [Biome](/gems/biome.md): Rust formatter and linter that replaces Prettier plus ESLint - [Kamal](/gems/kamal.md): Deploy Docker containers to your own VMs with one CLI - [n8n](/gems/n8n.md): Fair-code workflow automation you can self-host - [Hyperswitch](/gems/hyperswitch.md): Apache-2.0 payment orchestrator you can self-host - [Logto](/gems/logto.md): MPL-2.0 identity platform with a 50k-MAU free Cloud - [SuperTokens](/gems/supertokens.md): Apache-2.0 session auth you can self-host with no MAU cap - [Novu](/gems/novu.md): MIT notification workflows with a real 0 USD Cloud - [LiveKit](/gems/livekit.md): Apache-2.0 realtime rooms, SFU, and agents - [Chatwoot](/gems/chatwoot.md): MIT-core support inbox you can self-host for $0/agent - [Socket.IO](/gems/socket-io.md): MIT realtime library with fallbacks, not a hosted product - [Listmonk](/gems/listmonk.md): AGPL-3.0 self-hosted newsletters and transactional mail - [PixiJS](/gems/pixijs.md): MIT 2D WebGPU/WebGL renderer, not a game engine - [Babylon.js](/gems/babylonjs.md): Apache-2.0 3D engine for the web, now on v9 - [PlayCanvas](/gems/playcanvas.md): MIT WebGL2/WebGPU engine plus an optional hosted Editor - [Colyseus](/gems/colyseus.md): MIT Node multiplayer rooms with state sync - [KAPLAY](/gems/kaplay.md): MIT successor to Kaboom for playground-first 2D games - [oRPC](/gems/orpc.md): MIT end-to-end typed TypeScript RPC - [SST](/gems/sst.md): MIT infrastructure-as-code for AWS, with live Lambda dev - [Zed](/gems/zed.md): GPL-3.0 GPU-accelerated editor with first-party agents - [Mise](/gems/mise.md): MIT polyglot runtime manager, the asdf successor that is fast - [Dagger](/gems/dagger.md): Apache-2.0 CI as containers, programmable in your language - [Excalidraw](/gems/excalidraw.md): MIT virtual whiteboard with the hand-drawn look - [TigerBeetle](/gems/tigerbeetle.md): Apache-2.0 financial-transactions database, not general OLTP - [Bento](/gems/bento.md): MIT slide decks as a single HTML file - [Kill Bill](/gems/killbill.md): Apache-2.0 in-house subscriptions and payments, no % take-rate - [Lago](/gems/lago.md): AGPLv3 usage and entitlements metering you self-host - [Plunk](/gems/plunk.md): AGPL-3.0 transactional email, workflows, and broadcasts - [Centrifugo](/gems/centrifugo.md): Apache-2.0 Go realtime server binary, not in-process Socket.IO - [Apprise](/gems/apprise.md): BSD-2-Clause CLI that talks to a hundred notifiers - [authentik](/gems/authentik.md): MIT-core self-hosted IdP; enterprise/ is not MIT - [Hanko](/gems/hanko.md): AGPLv3 passkeys-first auth with a 10k-MAU free Cloud - [howler.js](/gems/howler.md): MIT audio sprites for the browser, tagged 2.2.4 in 2023 - [ZITADEL](/gems/zitadel.md): AGPLv3 identity Cloud at US$0/Month — 100 DAU, not Logto 50k MAU - [Kinde](/gems/kinde.md): Hosted auth plus billing, $0 forever, 10,500 MAU, no OSS - [Authelia](/gems/authelia.md): Apache-2.0 reverse-proxy SSO, not a full IdP like authentik - [Liveblocks](/gems/liveblocks.md): Hosted collab rooms; Free $0 pauses at the cap - [Yjs](/gems/yjs.md): MIT CRDT library, not a hosted collab product - [Gotify](/gems/gotify.md): MIT self-host push server; Android-first, no ntfy.sh twin - [Matter.js](/gems/matter-js.md): MIT 2D rigid-body physics, not a Phaser replacement - [BTCPay Server](/gems/btcpay-server.md): MIT self-hosted Bitcoin/LN, 0% fees to your wallet - [Medusa](/gems/medusa.md): MIT commerce OS you self-host; Cloud from $29/mo - [pretix](/gems/pretix.md): AGPL-3.0-with-additional-terms event tickets and POS - [OpenMeter](/gems/openmeter.md): Apache-2.0 usage-event metering; Cloud is Kong Konnect now - [Keycloak](/gems/keycloak.md): Apache-2.0 CNCF-incubation Java IAM: OIDC, OAuth, SAML, LDAP - [Dex](/gems/dex-idp.md): Apache-2.0 federated OIDC IdP that owns no user state - [Soketi](/gems/soketi.md): AGPL-3.0 Pusher Protocol v7 server you run yourself - [Mercure](/gems/mercure.md): AGPL-3.0 SSE hub; homepage still says MIT - [Spree Commerce](/gems/spree.md): BSD-3-Clause Ruby commerce OS; Free Sandbox, no platform fees - [Sylius](/gems/sylius.md): MIT Symfony commerce; Plus is the commercial add-on - [Kanidm](/gems/kanidm.md): MPL-2.0 Rust IdP aiming to replace needing Keycloak - [NATS](/gems/nats.md): Apache-2.0 subject-based messaging and streaming fabric - [AnyCable](/gems/anycable.md): MIT realtime for Action Cable with delivery guarantees - [mediasoup](/gems/mediasoup.md): ISC embeddable SFU as a Node module or Rust crate - [melonJS](/gems/melonjs.md): MIT 2D engine: WebGPU to WebGL2 to Canvas AUTO, zero deps - [Tone.js](/gems/tonejs.md): MIT Web Audio: synths, Transport, effects, sample-accurate - [InvoiceShelf](/gems/invoiceshelf.md): AGPL-3.0 self-host invoices, estimates, expenses, client portal - [Bagisto](/gems/bagisto.md): MIT Laravel/Vue commerce with marketplace and B2B - [PrestaShop](/gems/prestashop.md): OSL-3.0 classic PHP cart; pitch the core, not the module store - [Cerbos](/gems/cerbos.md): Apache-2.0 authZ PDP: YAML policies, run anywhere - [OpenFGA](/gems/openfga.md): Apache-2.0 Zanzibar-style ReBAC with a Check API - [PeerJS](/gems/peerjs.md): MIT browser P2P WebRTC with free cloud or self-host signaling - [Rapier](/gems/rapier.md): Apache-2.0 Rust/WASM physics: 2D+3D, joints, SIMD - [Mautic](/gems/mautic.md): GPL-3.0 self-host marketing automation; hosted trial is not free - [Topaz](/gems/topaz.md): Apache-2.0 authZ: OPA Rego + embedded Zanzibar in one container - [Pion WebRTC](/gems/pion-webrtc.md): MIT embeddable Go WebRTC library — not a rooms product - [Janus Gateway](/gems/janus-gateway.md): GPL-3.0 plugin-core WebRTC gateway (SIP, VideoRoom, streaming) - [SocketCluster](/gems/socketcluster.md): MIT Node pub/sub+RPC+JWT with SCC scale-out - [Inkvoice](/gems/inkvoice.md): MIT freelancer invoicing; self-host primary, tiny Cloud Free - [Edgepush](/gems/edgepush.md): AGPL server + MIT SDK: BYO APNs/FCM on Cloudflare Workers - [Defold](/gems/defold.md): Source-available Lua game engine; forever free, not OSI Open Source - [Shove](/gems/shove.md): MIT end-to-end Go device-push relay - [Postal](/gems/postal.md): MIT self-hosted mail delivery: SMTP + HTTP API - [Hyvor Relay](/gems/hyvor-relay.md): AGPL-3.0 email relay; Self-Hosted Free Forever unlimited - [Cute Framework](/gems/cute-framework.md): zlib/Unlicense C/C++ native-first framework + Emscripten - [Godot](/gems/godot.md): MIT engine with HTML5/Wasm+WebGL2; Compatibility mode for embeds - [Unleash](/gems/unleash.md): AGPLv3 feature flags; OSS caps 1 project / 2 environments - [Flagsmith](/gems/flagsmith.md): BSD-3-Clause flags; Cloud Free 50k req/mo, self-host uncapped - [GrowthBook](/gems/growthbook.md): MIT-core flags+experiments; Cloud Starter Free, self-host unlimited users - [WorkOS](/gems/workos.md): Proprietary AuthKit: first 1M MAUs Free — LOUD not OSS - [Descope](/gems/descope.md): Proprietary auth: Free Forever 7500 MAUs / 10 tenants / 3 SSO - [Casdoor](/gems/casdoor.md): Apache-2.0 UI-first IdP; Hosted Free 25k MAU, self-host primary - [Laravel Reverb](/gems/laravel-reverb.md): MIT first-party Laravel WebSocket server - [Tuwunel](/gems/tuwunel.md): Apache-2.0 Matrix homeserver; official conduwuit successor - [Bevy](/gems/bevy.md): MIT/Apache Rust ECS engine with first-party Web - [Textbee](/gems/textbee.md): MIT Android SMS gateway; Hosted Free 1 device/50 msgs/day - [Heaps](/gems/heaps.md): MIT Haxe+HashLink engine; HTML5/WebGL; Dead Cells stack - [SimpleWebAuthn](/gems/simplewebauthn.md): MIT passkeys ceremony library — not an IdP - [raylib](/gems/raylib.md): zlib/libpng C game library + Emscripten web - [Mailu](/gems/mailu.md): MIT full mailbox stack: SMTP/IMAP/webmail — not tx API - [GDevelop](/gems/gdevelop.md): MIT event/no-code engine + HTML5; Pro required above $50k revenue - [matrix-js-sdk](/gems/matrix-js-sdk.md): Apache-2.0 Matrix client library — needs a homeserver - [ParadeDB](/gems/paradedb.md): AGPL-3.0 Postgres search + analytics; Community free forever - [Eclipse Mosquitto](/gems/mosquitto.md): EPL-2.0 / BSD-3 MQTT broker; OSS self-host forever free - [RPG-JS](/gems/rpg-js.md): MIT browser RPG/MMORPG TypeScript framework; Free Engine $0 - [Garage](/gems/garage.md): AGPL-3.0 S3-compatible store for small geo-distributed hosts - [Infisical](/gems/infisical.md): MIT secrets; Cloud Free forever 5 identities; ee/ needs LICENSE_KEY - [Valkey](/gems/valkey.md): BSD-3-Clause forever-OSS Redis-protocol KV after the license fork - [Litestream](/gems/litestream.md): Apache-2.0 SQLite WAL replication to S3 or local disk - [OpenBao](/gems/openbao.md): MPL-2.0 Vault-compatible secrets engine after the Vault fork - [Temporal](/gems/temporal.md): MIT self-host workflow engine; Cloud is credits then paid - [Caddy](/gems/caddy.md): Apache-2.0 reverse proxy with automatic HTTPS by default - [Oxc](/gems/oxc.md): MIT Rust JS/TS toolchain: parser, linter, and friends - [Deno](/gems/deno.md): MIT TypeScript runtime forever; Deploy free tier is real but separate - [ty](/gems/ty.md): MIT Astral Python type checker (beta) in Rust - [Ory Open Source](/gems/ory.md): Apache-2.0 modular Go IAM: Kratos, Hydra, Keto, Oathkeeper - [Galacean Engine](/gems/galacean.md): MIT Ant Group TypeScript WebGL engine + browser Editor - [Sockudo](/gems/sockudo.md): MIT Rust Pusher V1 edge + Protocol V2 recovery/history/push - [Paymenter](/gems/paymenter.md): MIT hosting billing; self-host free, cloud PaaS $5/mo paid - [Pocket ID](/gems/pocket-id.md): BSD-2-Clause passkey-only OIDC IdP; self-host only - [Tinyauth](/gems/tinyauth.md): AGPL-3.0 one-binary proxy auth + Certified OIDC - [SolidInvoice](/gems/solidinvoice.md): MIT Symfony invoicing; self-host free, Cloud trial paid - [SpiceDB](/gems/spicedb.md): Apache-2.0 Google Zanzibar permissions DB; AuthZed Cloud optional - [Atlas](/gems/atlas.md): Apache-2.0 schema-as-code CLI; Cloud CI/governance is paid - [Hatchet](/gems/hatchet.md): MIT durable tasks/agents on Postgres; Cloud free tier real - [LiteLLM](/gems/litellm.md): MIT OpenAI-compatible gateway to 100+ LLMs; Enterprise SSO paid - [Electric](/gems/electric.md): Apache-2.0 Postgres read-path sync; Cloud PAYG under $5 waived - [Autumn](/gems/autumn.md): Apache-2.0 Stripe billing layer; Free to 8K billing volume - [OpenTofu](/gems/opentofu.md): MPL-2.0 Linux Foundation Terraform fork; truly OSS IaC - [SigNoz](/gems/signoz.md): MIT-core OTel APM (logs/metrics/traces); Cloud from $49/mo - [Meilisearch](/gems/meilisearch.md): MIT typo-tolerant search engine; Cloud managed, EE sharding paid - [Payload](/gems/payload.md): MIT Next.js-native headless CMS; Cloud new deploys paused - [Headscale](/gems/headscale.md): BSD-3 self-hosted Tailscale control server - [Woodpecker CI](/gems/woodpecker.md): Apache-2.0 container-native CI; self-host forever, no paid tier - [Bytebase](/gems/bytebase.md): MIT-core DB change governance; Community free to 20 users/10 instances - [Knock](/gems/knock.md): Hosted notification workflows; Developer free to 10k messages/mo - [Windmill](/gems/windmill.md): AGPLv3 scripts→workflows/UIs/agents; CE free self-host unlimited runs - [Trivy](/gems/trivy.md): Apache-2.0 all-in-one vuln/IaC/secret/SBOM scanner; no paid tier - [dbmate](/gems/dbmate.md): MIT framework-agnostic SQL migration CLI; single Go binary - [NetBird](/gems/netbird.md): WireGuard mesh ZTNA; Cloud free 5 users/100 machines, self-host AGPL plane - [Excalibur.js](/gems/excalibur.md): BSD-2 TypeScript 2D HTML5 game engine; free forever - [PartyKit](/gems/partykit.md): MIT realtime rooms on Cloudflare Durable Objects; pay CF Workers only - [Cosign](/gems/cosign.md): Apache-2.0 Sigstore keyless container/artifact signing CLI - [FusionAuth](/gems/fusionauth.md): Source-available CIAM; Community self-host free unlimited users - [OneSignal](/gems/onesignal.md): Multi-channel messaging SaaS; Free now capped at 1k mobile MAU - [Paddle CLI](/gems/paddle-cli.md): MIT community CLI for full Paddle Billing API; agent-native - [Promptfoo](/gems/promptfoo.md): MIT LLM evals & red-teaming CLI; Community free, 10k probes/mo - [DeepEval](/gems/deepeval.md): Apache-2.0 pytest-style LLM/agent evals; Confident AI is the paid cloud - [Graphiti](/gems/graphiti.md): Apache-2.0 temporal knowledge graphs for agent memory; Zep's OSS engine - [Gitleaks](/gems/gitleaks.md): MIT secret scanner for git/dirs/stdin; CLI free, org Action needs free key - [Grype](/gems/grype.md): Apache-2.0 SBOM-first vulnerability scanner from Anchore; free CLI - [Saleor](/gems/saleor.md): BSD-3 GraphQL headless commerce; self-host free, Cloud from $1599/mo - [Instructor](/gems/instructor.md): MIT Pydantic structured outputs for any LLM; free library - [smolagents](/gems/smolagents.md): Apache-2.0 minimal code-agent framework from Hugging Face - [MagicBell](/gems/magicbell.md): Multichannel notification API + inbox; Builder free to 1k deliveries/mo - [Stytch](/gems/stytch.md): Auth SaaS with no feature gates; free to 10k MAU + 5 SSO/SCIM - [Invoice Ninja](/gems/invoice-ninja.md): ELv2 source-available invoicing; self-host free, hosted Free 5 clients - [Traefik](/gems/traefik.md): MIT dynamic reverse proxy for Docker/K8s ingress - [Penpot](/gems/penpot.md): MPL-2.0 Figma-class design; self-host forever + Cloud Professional $0 - [Vite](/gems/vite.md): MIT next-gen frontend tooling — dev server + build - [Zod](/gems/zod.md): MIT TypeScript-first schema validation with static type inference - [Lefthook](/gems/lefthook.md): MIT Go manager for polyglot repo git-hooks - [just](/gems/just.md): CC0-1.0 command runner — modern Makefile replacement - [Zellij](/gems/zellij.md): MIT Rust terminal workspace with layouts and plugins - [Flux](/gems/flux.md): Apache-2.0 CNCF GitOps Toolkit for Kubernetes - [Ollama](/gems/ollama.md): MIT local model runner — free forever; Pro cloud $20/mo - [Continue](/gems/continue.md): Apache-2.0 open-source coding assistant — GitHub is source of truth - [lazygit](/gems/lazygit.md): MIT Go terminal UI for git - [Starship](/gems/starship.md): ISC cross-shell prompt — needs a Nerd Font - [Uptime Kuma](/gems/uptime-kuma.md): MIT self-host uptime monitoring and status pages - [Bun](/gems/bun.md): MIT JS runtime + install + test + bundle (JSC linked) - [Helix](/gems/helix.md): MPL-2.0 modal terminal editor — tree-sitter + LSP - [TanStack Query](/gems/tanstack-query.md): MIT server-state cache for async data (React Query lineage) - [Argo CD](/gems/argo-cd.md): Apache-2.0 CNCF declarative GitOps CD for Kubernetes - [pnpm](/gems/pnpm.md): MIT content-addressable Node pkg manager - [Vitest](/gems/vitest.md): MIT Vite-native unit/integration test runner - [Astro](/gems/astro.md): MIT content-first web framework with islands - [Playwright](/gems/playwright.md): Apache-2.0 cross-browser library and CLI - [SvelteKit](/gems/sveltekit.md): MIT full-stack Svelte framework - [Helm](/gems/helm.md): Apache-2.0 Kubernetes package manager - [k9s](/gems/k9s.md): Apache-2.0 terminal UI for Kubernetes - [fzf](/gems/fzf.md): MIT command-line fuzzy finder - [sqlc](/gems/sqlc.md): MIT type-safe code gen from SQL - [Elysia](/gems/elysia.md): MIT ergonomic Bun-first web framework - [Turborepo](/gems/turbo.md): MIT Rust monorepo build system (JS/TS) ## Skills 494 agent skills. Index: /skills - [Claude Academy Guide](/skills/academy-guide.md): Claude Academy course matcher for product questions - [Algorithmic Art](/skills/algorithmic-art.md): Seeded p5.js generative-art skill - [Anthropic Brand Guidelines](/skills/brand-guidelines.md): Anthropic brand colors and type for artifacts - [Canvas Design](/skills/canvas-design.md): Poster and static visual design in PNG/PDF - [Claude API](/skills/claude-api.md): Claude API / Anthropic SDK reference before you guess - [Doc Coauthoring](/skills/doc-coauthoring.md): Structured loop for co-authoring specs and docs - [Frontend Design](/skills/frontend-design.md): Intentional visual direction so UI is not template-default - [MCP Builder](/skills/mcp-builder.md): How to build MCP servers in Python or TypeScript - [Skill Creator](/skills/skill-creator.md): Create, edit, eval, and tune agent skills - [Slack GIF Creator](/skills/slack-gif-creator.md): Animated GIFs sized and timed for Slack - [Theme Factory](/skills/theme-factory.md): Ten preset themes, or a new one, for artifacts - [Web Artifacts Builder](/skills/web-artifacts-builder.md): Multi-component claude.ai HTML artifacts (React + shadcn) - [Webapp Testing](/skills/webapp-testing.md): Playwright toolkit for local webapp UI and logs - [Dispatching Parallel Agents](/skills/dispatching-parallel-agents.md): Split independent work across parallel agents - [Executing Plans](/skills/executing-plans.md): Run a written plan in a separate session with checkpoints - [Finishing a Development Branch](/skills/finishing-a-development-branch.md): Integrate a finished, tested branch - [Receiving Code Review](/skills/receiving-code-review.md): Verify review feedback before you implement it - [Requesting Code Review](/skills/requesting-code-review.md): Ask for review after a real feature or before merge - [Subagent-Driven Development](/skills/subagent-driven-development.md): Execute a plan with independent subagents in-session - [Systematic Debugging](/skills/systematic-debugging.md): Root-cause the bug before proposing a fix - [Test-Driven Development](/skills/test-driven-development.md): Write the failing test before implementation - [Using Git Worktrees](/skills/using-git-worktrees.md): Isolate feature work in a git worktree - [Verification Before Completion](/skills/verification-before-completion.md): Run the proof before claiming done - [Writing Plans](/skills/writing-plans.md): Bite-sized implementation plan after a spec exists - [API and Interface Design](/skills/api-and-interface-design.md): Stable APIs, module boundaries, and public contracts - [Browser Testing with DevTools](/skills/browser-testing-with-devtools.md): Chrome DevTools MCP for real-browser evidence - [CI/CD and Automation](/skills/ci-cd-and-automation.md): Build, test, and deploy pipelines as quality gates - [Code Review and Quality](/skills/code-review-and-quality.md): Multi-axis review before a change lands - [Code Simplification](/skills/code-simplification.md): Clarify working code without changing behavior - [Constraint-Driven Development](/skills/constraint-driven-development.md): Write the quality bar so agents cannot quietly lower it - [Deprecation and Migration](/skills/deprecation-and-migration.md): Sunset, migrate, and expand/contract without downtime - [Documentation and ADRs](/skills/documentation-and-adrs.md): Record decisions so the next engineer and agent can follow - [Doubt-Driven Development](/skills/doubt-driven-development.md): Adversarial review of high-stakes decisions before they stand - [Frontend UI Engineering](/skills/frontend-ui-engineering.md): Production-quality accessible, responsive UI - [Git Workflow and Versioning](/skills/git-workflow-and-versioning.md): Commits, branches, PRs, tags, and version bumps - [Idea Refine](/skills/idea-refine.md): Diverge, then converge a vague idea into a sharp concept - [Interview Me](/skills/interview-me.md): One-question interviews until the real intent is clear - [Observability and Instrumentation](/skills/observability-and-instrumentation.md): Logs, metrics, traces so production is diagnosable - [Performance Optimization](/skills/performance-optimization.md): Frontend, backend, and query performance with evidence - [Planning and Task Breakdown](/skills/planning-and-task-breakdown.md): Turn a spec into ordered, estimable tasks - [Security and Hardening](/skills/security-and-hardening.md): Input, auth, data, and supply-chain hardening - [Shipping and Launch](/skills/shipping-and-launch.md): Pre-launch checklist, rollout, and rollback - [Source-Driven Development](/skills/source-driven-development.md): Cite official docs instead of remembered APIs - [Spec-Driven Development](/skills/spec-driven-development.md): Write the spec first when none exists yet - [Vercel React Best Practices](/skills/vercel-react-best-practices.md): Vercel Engineering React and Next.js performance patterns - [Vercel Composition Patterns](/skills/vercel-composition-patterns.md): React composition that scales past boolean props - [Vercel React Native Skills](/skills/vercel-react-native-skills.md): React Native and Expo performance and native-module patterns - [Use Railway](/skills/use-railway.md): Railway signup, deploy, services, and infrastructure ops - [Wrangler](/skills/wrangler.md): Cloudflare Workers CLI, before you type it - [Workers Best Practices](/skills/workers-best-practices.md): Production Workers anti-patterns - [Durable Objects](/skills/durable-objects.md): Stateful coordination on Workers - [Turnstile Spin](/skills/turnstile-spin.md): Bot check via Cloudflare Turnstile - [Sandbox Stable](/skills/sandbox-stable.md): @cloudflare/sandbox on the default tag - [Sandbox Next](/skills/sandbox-next.md): Sandbox SDK 1.0 preview tag - [Cloudflare Email Service](/skills/cloudflare-email-service.md): Send and route mail from Workers - [Agents SDK](/skills/agents-sdk.md): Stateful agents on Cloudflare Workers - [Agents.md](/skills/agents-md.md): This writes AGENTS.md, not a skill - [Claude Settings Audit](/skills/claude-settings-audit.md): permissions.json from the repo shape - [Django Access Review](/skills/django-access-review.md): IDOR and tenant isolation in Django - [Django Perf Review](/skills/django-perf-review.md): N+1 and queryset audits - [Sentry Doc Coauthoring](/skills/sentry-doc-coauthoring.md): Structured pass with the human still in it - [GH Review Requests](/skills/gh-review-requests.md): Unread review-request notifications - [GHA Security Review](/skills/gha-security-review.md): Pwn-request and workflow injection - [Iterate PR](/skills/iterate-pr.md): CI + review loop until the PR is green - [PR Writer](/skills/pr-writer.md): Reviewer-facing title and body - [Prompt Optimizer](/skills/prompt-optimizer.md): Evals and model-family adapters - [Skill Scanner](/skills/skill-scanner.md): Audit a SKILL.md before you install it - [Find Bugs](/skills/find-bugs.md): Bugs on this branch, not the whole repo - [Security Review](/skills/security-review.md): OWASP-style pass with confidence scores - [Document API Endpoint](/skills/document-api-endpoint.md): Sentry @extend_schema and TypedDicts - [Claude Security](/skills/claude-security.md): In-session scan, then patches you apply - [Claude Automation Recommender](/skills/claude-automation-recommender.md): Hooks, skills, MCP — recommendations only - [Agent Development](/skills/agent-development.md): Claude Code subagent frontmatter - [Command Development](/skills/command-development.md): Slash commands for Claude Code plugins - [Hook Development](/skills/hook-development.md): PreToolUse and friends, in plugins - [Plugin Structure](/skills/plugin-structure.md): plugin.json at the root, components beside it - [Plugin Settings](/skills/plugin-settings.md): .local.md config for a plugin - [Build MCP App](/skills/build-mcp-app.md): In-chat widgets on an MCP server - [Build MCPB](/skills/build-mcpb.md): Bundle a local MCP with its runtime - [Expo Animation](/skills/expo-animation.md): Reanimated, Gesture Handler, and haptics on device - [Expo App Clip](/skills/expo-app-clip.md): iOS App Clip target beside the parent Expo app - [Expo Brownfield](/skills/expo-brownfield.md): Embed Expo in an existing Swift or Kotlin app - [Expo Data Fetching](/skills/expo-data-fetching.md): Fetch, React Query, SWR, and Expo Router loaders - [Expo Design System](/skills/expo-design-system.md): Tokens, variants, and an in-app component library for Expo - [Expo Dev Client](/skills/expo-dev-client.md): Local and TestFlight Expo development clients - [Expo DOM](/skills/expo-dom.md): Web code in a native webview, incrementally - [Expo Examples](/skills/expo-examples.md): Adapt with-* starters from expo/examples - [Expo Migrate Module](/skills/expo-migrate-module.md): Swift Expo module 1.0 DSL → 2.0 macros - [Expo Module](/skills/expo-module.md): New Expo Modules API in Swift, Kotlin, and TypeScript - [Expo Native UI](/skills/expo-native-ui.md): HIG, semantic color, and SF Symbols on Expo screens - [Expo Project Structure](/skills/expo-project-structure.md): Folder layout for a new Expo Router app - [Expo Router](/skills/expo-router.md): File-based routes, Stack, NativeTabs, and modals - [Expo UI](/skills/expo-ui.md): @expo/ui SwiftUI and Compose primitives - [Expo Upgrade](/skills/expo-upgrade.md): Expo SDK upgrades and dependency fixes - [Expo Web to Native](/skills/expo-web-to-native.md): Port Next/Vite/CRA to Expo native, screen by screen - [EAS App Stores](/skills/eas-app-stores.md): EAS build and submit to App Store and Play - [EAS Hosting](/skills/eas-hosting.md): Expo web and API routes via eas deploy - [EAS Observe](/skills/eas-observe.md): expo-observe metrics, 10k MAU free cap - [EAS Simulator](/skills/eas-simulator.md): Remote iOS/Android sim on EAS cloud - [EAS Update](/skills/eas-update.md): OTA JS/asset updates via expo-updates - [EAS Update Insights](/skills/eas-update-insights.md): Health of published EAS Update rollouts - [EAS Workflows](/skills/eas-workflows.md): .eas/workflows YAML that burns compute minutes - [Supabase Postgres Best Practices](/skills/supabase-postgres-best-practices.md): Load before any Postgres schema or SQL - [Supabase](/skills/supabase.md): Any Supabase product; changelog-first vendor skill - [Prisma CLI](/skills/prisma-cli.md): ORM CLI: init, generate, migrate, studio - [Prisma Client API](/skills/prisma-client-api.md): findMany, create, $transaction - [Prisma Database Setup](/skills/prisma-database-setup.md): Wire Prisma to Postgres, MySQL, SQLite, Mongo - [Prisma Driver Adapter Implementation](/skills/prisma-driver-adapter-implementation.md): ORM 7 SQL driver adapters - [Prisma MongoDB Upgrade](/skills/prisma-mongodb-upgrade.md): Mongo on v6 has no v7 path - [Prisma Upgrade v7](/skills/prisma-upgrade-v7.md): v6→v7 breaking changes - [Prisma Postgres](/skills/prisma-postgres.md): Hosted Prisma Postgres, not OSS Postgres - [Prisma Compute](/skills/prisma-compute.md): Prisma Compute deploy, 1M requests/mo free - [Threat Model Generation](/skills/threat-model-generation.md): STRIDE threat model for a repo - [Firecrawl Agent](/skills/firecrawl-agent.md): Multi-page schema extract via Firecrawl agent - [Firecrawl Crawl](/skills/firecrawl-crawl.md): Bulk crawl; no keyless free tier - [Firecrawl Build Scrape](/skills/firecrawl-build-scrape.md): One-URL /scrape in app code - [Firecrawl Build Search](/skills/firecrawl-build-search.md): Firecrawl /search in product code - [Firecrawl Build Interact](/skills/firecrawl-build-interact.md): Clicks and forms after scrape - [Hugging Face Papers](/skills/huggingface-papers.md): HF/arXiv URL to markdown - [Browser](/skills/browser.md): NL browse CLI; local Chrome or Browserbase - [Browser Trace](/skills/browser-trace.md): CDP/screenshot debug of a failed browse - [Browser to API](/skills/browser-to-api.md): Trace to OpenAPI 3.1 from XHR - [Transformers.js](/skills/transformers-js.md): Transformers.js in browser and Node - [Hugging Face Local Models](/skills/huggingface-local-models.md): GGUF + llama.cpp on CPU/Metal/CUDA/ROCm - [Hugging Face Datasets](/skills/huggingface-datasets.md): Hub Dataset Viewer API - [Hugging Face Gradio](/skills/huggingface-gradio.md): Gradio apps in Python - [Hugging Face Trackio](/skills/huggingface-trackio.md): Trackio metrics, not W&B - [Hugging Face Community Evals](/skills/huggingface-community-evals.md): Local inspect-ai and lighteval - [Hugging Face Paper Publisher](/skills/huggingface-paper-publisher.md): Create and claim HF paper pages - [Hugging Face Vision Trainer](/skills/huggingface-vision-trainer.md): Detection/SAM on HF Jobs GPUs - [Playwright](/skills/playwright.md): playwright-cli from the terminal - [Jupyter Notebook](/skills/jupyter-notebook.md): .ipynb only, not a Python app skill - [GH Fix CI](/skills/gh-fix-ci.md): Failing Actions on the current PR - [GH Address Comments](/skills/gh-address-comments.md): Review comments on the current-branch PR - [Yeet](/skills/yeet.md): Stage, commit, push, and open a PR - [Screenshot](/skills/screenshot.md): OS-level capture, not web page shots - [OpenAI Docs](/skills/openai-docs.md): Current OpenAI/Codex docs; twin of claude-api - [Netlify Deploy](/skills/netlify-deploy.md): npx netlify; Netlify says build free - [Render Deploy](/skills/render-deploy.md): render.yaml; Render says deploy for free - [Linear](/skills/linear.md): Issues via Linear; Free $0, needs auth - [Notion Knowledge Capture](/skills/notion-knowledge-capture.md): Chats into a Notion wiki or how-to - [Upstash Redis Start](/skills/upstash-redis-start.md): Scratch Redis, 72h, no signup - [Upstash Redis JS](/skills/upstash-redis-js.md): @upstash/redis HTTP client, not ioredis - [Upstash Ratelimit JS](/skills/upstash-ratelimit-js.md): Rate limit on top of Upstash Redis - [Upstash QStash JS](/skills/upstash-qstash-js.md): HTTP queue and schedules on QStash - [Upstash Workflow JS](/skills/upstash-workflow-js.md): Durable workflows on QStash - [Upstash Vector JS](/skills/upstash-vector-js.md): Upstash Vector, not pgvector - [Upstash Search JS](/skills/upstash-search-js.md): Upstash Search vendor SDK - [Upstash CLI](/skills/upstash-cli.md): upstash CLI; needs API token - [PlanetScale pscale CLI Automation](/skills/planetscale-pscale-cli-automation.md): Headless pscale with --format json - [PlanetScale Postgres Safety Review](/skills/planetscale-postgres-safety-review.md): PS Postgres only; not the Supabase skill - [PlanetScale Vitess Safety Review](/skills/planetscale-vitess-safety-review.md): Vitess branch safety review - [PlanetScale Query Insights and Tags](/skills/planetscale-query-insights-and-tags.md): PlanetScale query insights and tags - [PlanetScale Schema Recommendations Agent Loop](/skills/planetscale-schema-recommendations-agent-loop.md): Triage PS schema recs; does not apply prod - [PlanetScale MCP Agent Operating Model](/skills/planetscale-mcp-agent-operating-model.md): PS MCP policy; dead without PS MCP - [WorkOS](/skills/workos.md): WorkOS auth; Free $0/mo, dead without WorkOS - [ASP.NET Core](/skills/aspnet-core.md): .NET-only ASP.NET Core, Blazor, Minimal APIs - [ChatGPT Apps](/skills/chatgpt-apps.md): ChatGPT Apps SDK with MCP widget - [CLI Creator](/skills/cli-creator.md): Codex companion CLI from OpenAPI or curl - [Multi-Stage Dockerfile](/skills/multi-stage-dockerfile.md): Dockerfile-only multi-stage images - [MCP Security Audit](/skills/mcp-security-audit.md): Audit .mcp.json, not security-review - [OpenAPI to Application Code](/skills/openapi-to-application-code.md): Codegen a whole app from an OpenAPI spec - [Safe Browser](/skills/safe-browser.md): Local domain-allowlisted Claude Agent SDK browser - [Browserbase Functions](/skills/functions.md): Scheduled or webhook Browserbase cloud browser jobs - [Firecrawl Map](/skills/firecrawl-map.md): URL list/filter. Discovery only; not extract - [Firecrawl Download](/skills/firecrawl-download.md): Bulk local markdown and screenshots - [Firecrawl Monitor](/skills/firecrawl-monitor.md): Webhook/email watches; recurring paid path - [Instrument Integration](/skills/instrument-integration.md): PostHog SDK wiring. Free, not a trial - [Instrument Product Analytics](/skills/instrument-product-analytics.md): PostHog product analytics events - [Instrument Feature Flags](/skills/instrument-feature-flags.md): PostHog feature flags. Free tier - [Instrument LLM Analytics](/skills/instrument-llm-analytics.md): PostHog LLM analytics. Free tier - [Liveblocks Best Practices](/skills/liveblocks-best-practices.md): Liveblocks collab. Free on liveblocks.io/pricing - [Yjs Best Practices](/skills/yjs-best-practices.md): Yjs library, not Liveblocks-specific - [Stripe Best Practices](/skills/stripe-best-practices.md): Stripe account exists; processing fees apply - [Stripe Docs](/skills/stripe-docs.md): Stripe docs lookup. Processing fees apply - [Upgrade Stripe](/skills/upgrade-stripe.md): Stripe API/SDK upgrade path - [Migrate AI SDK v6 to v7](/skills/migrate-ai-sdk-v6-to-v7.md): Vercel AI SDK v6→v7. Version-gate; will stale - [Add WebMCP](/skills/add-webmcp.md): First-party WebMCP; not generic MCP builder - [Cookie Sync](/skills/cookie-sync.md): Local Chrome cookies into Browserbase - [Neon Postgres](/skills/neon-postgres.md): Lakebase Postgres setup, pooled vs direct, DATABASE_URL - [Neon Postgres Branches](/skills/neon-postgres-branches.md): Pick/create Neon branch type; schema-only is Beta - [Neon Functions](/skills/neon-functions.md): Long-running Node HTTP on a Neon branch. Public beta - [Neon Object Storage](/skills/neon-object-storage.md): S3-compatible storage that branches with Neon. Public beta - [LiveKit Agents](/skills/livekit-agents.md): Voice AI agent via LiveKit Cloud + Agents SDK - [Agent OWASP Compliance](/skills/agent-owasp-compliance.md): OWASP ASI Top 10 audit before prod. Community Copilot skill - [Inngest Setup](/skills/inngest-setup.md): Inngest Cloud + TypeScript setup. Hobby $0/mo, no CC - [Inngest Durable Functions](/skills/inngest-durable-functions.md): Inngest steps, not BullMQ. Cloud + TypeScript - [Inngest Events](/skills/inngest-events.md): Inngest event schema; 24h dedupe is vendor-specific - [Inngest Flow Control](/skills/inngest-flow-control.md): Concurrency/throttle/batch. Hobby is 5 concurrent steps - [Inngest Realtime](/skills/inngest-realtime.md): v4-native inngest/realtime, not @inngest/realtime - [Inngest Agents](/skills/inngest-agents.md): AgentKit lock. Durable agents on Inngest Cloud - [Inngest v3 to v4 Migration](/skills/inngest-v3-v4-migration.md): SDK v3→v4. Stale the day v5 ships - [Convex Quickstart](/skills/convex-quickstart.md): Next.js + Convex template. JSON-generated; can drift - [Convex Auth](/skills/convex-auth.md): Convex Auth only — not Clerk or Better Auth - [Convex Create Component](/skills/convex-create-component.md): Convex Components with isolated tables, not React - [Convex Migrate](/skills/convex-migrate.md): Live-data backfill with @convex-dev/migrations, not Prisma - [Infisical Setup](/skills/infisical-setup.md): CLI/SDK secrets into the app. Slug is infisical-setup - [Infisical Kubernetes Operator](/skills/infisical-kubernetes-operator.md): v1beta1 CRDs. v1alpha1 is a false-fire - [Infisical Self-Host](/skills/infisical-self-host.md): MIT core only. ee/ needs LICENSE_KEY - [Infisical Secret Scanning](/skills/infisical-secret-scanning.md): github-radar data source, not github. infisical scan - [Infisical Secret Syncs](/skills/infisical-secret-syncs.md): Push secrets out. Free cap is 10 syncs - [React Email](/skills/react-email.md): Compose React email templates. Delivery still hits 100/day - [Resend CLI](/skills/resend-cli.md): resend CLI for shell/CI. --react-email can steal compose - [Drizzle Migration Conflict](/skills/drizzle-migration-conflict.md): Community v0.1. Not drizzle-team. Can steal generate - [ElevenLabs Text-to-Speech](/skills/elevenlabs-text-to-speech.md): Cloud TTS. Free 10k credits is minutes, not a product - [ElevenLabs Speech Engine](/skills/elevenlabs-speech-engine.md): Your runtime, their STT/TTS. Cloud + key. Not LiveKit OSS - [ElevenLabs Sound Effects](/skills/elevenlabs-sound-effects.md): Text-to-SFX, not speech. 200 credits/gen - [ElevenLabs Music](/skills/elevenlabs-music.md): Music API. Commercial music is Starter+. 900 credits/min - [ElevenLabs Dubbing](/skills/elevenlabs-dubbing.md): Dubbing Studio is Starter+. 2k-10k credits/min - [Replicate Find Models](/skills/replicate-find-models.md): Search Replicate models. Not Hugging Face Hub - [Replicate Compare Models](/skills/replicate-compare-models.md): Pick among Replicate models. Cost numbers stale - [Replicate Run Models](/skills/replicate-run-models.md): Paid predictions. Needs REPLICATE_API_TOKEN - [Replicate Build Models](/skills/replicate-build-models.md): Cog package. Skill still aims at Replicate deploy - [Replicate Publish Models](/skills/replicate-publish-models.md): cog push. Public model is not free inference - [Sanity Migration](/skills/sanity-migration.md): Replatform to Sanity. Full CMS move, not PT conversion - [Sanity Portable Text Conversion](/skills/sanity-portable-text-conversion.md): HTML/MD to Portable Text. Ingest, not replatform - [Sanity Portable Text Serialization](/skills/sanity-portable-text-serialization.md): PT to React/Svelte/Vue/HTML. Render, not ingest - [TanStack AI Chat Experience](/skills/tanstack-ai-chat-experience.md): False-fires on Vercel AI SDK streamText / useChat - [TanStack AI Tool Calling](/skills/tanstack-ai-tool-calling.md): Isomorphic toolDefinition. Not OpenAI tools / Vercel tool() - [TanStack AI Media Generation](/skills/tanstack-ai-media-generation.md): Not ElevenLabs/Replicate. generate* needs provider keys - [TanStack AI Structured Outputs](/skills/tanstack-ai-structured-outputs.md): Forbids provider-level json_schema you already set - [TanStack AI Adapter Configuration](/skills/tanstack-ai-adapter-configuration.md): BytePlus TWO keys no fallback. Ollama is the 0 USD local path - [TanStack AI AG-UI Protocol](/skills/tanstack-ai-ag-ui-protocol.md): Server AG-UI SSE/NDJSON. Not CopilotKit client - [TanStack AI Code Mode](/skills/tanstack-ai-code-mode.md): Isolate drivers. 0.3.8 vs ai-core 0.42.0. Not generic sandbox - [Tavily Search](/skills/tavily-search.md): LLM-optimized search. Generic steal. 1 credit basic / 2 advanced - [Tavily Research](/skills/tavily-research.md): Cited multi-source report. Loud free-tier eater - [Pinecone Quickstart](/skills/pinecone-quickstart.md): First-time Database vs Assistant tour. Not production schema - [Pinecone Query](/skills/pinecone-query.md): Integrated indexes only. Standard/external must use pinecone-cli - [Pinecone CLI](/skills/pinecone-cli.md): pc CLI for all index types. False-fires on generic pc/redis-cli - [Pinecone Full-Text Search](/skills/pinecone-full-text-search.md): SDK 10+ / API 2026-07. pinecone.preview deleted. Not Elasticsearch - [Pinecone Assistant](/skills/pinecone-assistant.md): Managed RAG. Starter caps. Not LangChain RAG - [Qdrant Deployment Options](/skills/qdrant-deployment-options.md): Docker vs Cloud vs local vs Edge. Local Python in-memory is not server-format - [Qdrant Edge](/skills/qdrant-edge.md): In-process shard. Beta API drifts. No one-call .sync(). Not sqlite-vec - [Qdrant Model Migration](/skills/qdrant-model-migration.md): Zero-downtime embedding switch. Named-vector add/delete needs v1.18+ - [Qdrant Multitenancy](/skills/qdrant-multitenancy.md): Default payload-filter isolation, NOT collection-per-tenant - [Qdrant Version Upgrade](/skills/qdrant-version-upgrade.md): Storage compat one minor only. Cloud automates; self-host stepwise - [Qdrant Sizing](/skills/qdrant-sizing.md): Cloud Free 1 GB will fail production assumptions. Not Pinecone RU/WU - [Algolia Quickstart](/skills/algolia-quickstart.md): Account/app from zero. Not index ops on existing app - [Algolia Index Configuration](/skills/algolia-index-configuration.md): Guidance-only. Live writes via cli/mcp. Not Elasticsearch mapping - [Algolia InstantSearch UI](/skills/algolia-instantsearch-ui.md): JS/React/Vue. Angular InstantSearch deprecated. Not autocomplete - [Algolia Autocomplete](/skills/algolia-autocomplete.md): Typeahead not InstantSearch SRP. False-fires on any search box - [Algolia Crawler](/skills/algolia-crawler.md): Crawl into Algolia index, not markdown dump. Over-limit = suspend or attribution - [Algolia Migration](/skills/algolia-migration.md): SDK major v3 to v4 / v4 to v5. Dart excluded. Not data/index migration - [DuckDB Install Extension](/skills/duckdb-install-duckdb.md): INSTALL extension, not brew-installing DuckDB - [DuckDB Read File](/skills/duckdb-read-file.md): whats in this file steal vs Read tool. Not for source code - [DuckDB Convert File](/skills/duckdb-convert-file.md): Generic convert steal (pandoc/ffmpeg). Data files only - [DuckDB Attach DB](/skills/duckdb-attach-db.md): Session-state is Claude-skill local, not DuckDB server attach - [DuckDB S3 Explore](/skills/duckdb-s3-explore.md): Query s3:// r2:// gs:// without download. Needs provider creds. Not AWS CLI ls - [DuckDB Spatial](/skills/duckdb-spatial.md): Geo steal. Spatial extension must already be installed - [Knock Setup](/skills/knock-setup.md): Vendor onboarding. Always asks for Knock account first - [Knock In-App UI](/skills/knock-in-app-ui.md): React-only. Developer cap 500 guide AU. Branding on feeds is Starter-gated - [Knock CLI](/skills/knock-cli.md): Pull/push workflows via CLI. Not MCP path - [Knock Migrate to Knock](/skills/knock-migrate-to-knock.md): Discovery-only. Writes knock-plan.md. Vendor steal vs Resend/SendGrid - [chDB DataStore](/skills/chdb-datastore.md): Pandas API on in-process ClickHouse. Not a server. Distinct from chdb-sql - [chDB SQL](/skills/chdb-sql.md): In-process ClickHouse SQL. Not DataStore pandas. No server - [ClickHouse JS Node Coding](/skills/clickhouse-js-node-coding.md): @clickhouse/client Node only. Not client-web / Edge / Workers - [ClickHouse JS Node RowBinary](/skills/clickhouse-js-node-rowbinary.md): RowBinary codec generator. Not JSONEachRow. Node only - [Infra ClickHouse](/skills/infra-clickhouse.md): clickhousectl local vs Cloud. Cloud is trial plus credits, not hobby - [MotherDuck Connect](/skills/motherduck-connect.md): Postgres endpoint false-fires as Neon/PlanetScale. Not local DuckDB - [MotherDuck CLI](/skills/motherduck-cli.md): Not MCP. Dives/Flights are MotherDuck-specific. Lite Flights 30 min/day - [MotherDuck Load Data](/skills/motherduck-load-data.md): DuckDB convert/read-file twin but destination is MotherDuck. 10 GB Lite cap - [MotherDuck Share Data](/skills/motherduck-share-data.md): Zero-copy metadata clones. Not S3 sharing. Not DuckDB ATTACH of a file - [MotherDuck DuckLake](/skills/motherduck-ducklake.md): Default is native storage. Over-fires on lakehouse / Iceberg-on-S3 - [MotherDuck REST API](/skills/motherduck-rest-api.md): Control plane, not SQL. Lite service-account cap is 2 - [Hugging Face Spaces](/skills/huggingface-spaces.md): Host Gradio/Docker/Static. Free: Static + max 2 ZeroGPU. cpu-basic not free - [Hugging Face ZeroGPU](/skills/huggingface-zerogpu.md): @spaces.GPU / pickle isolation. Gradio ZeroGPU only — Docker/Static will not schedule - [Hugging Face LoRA Space Builder](/skills/huggingface-lora-space-builder.md): Publishes a real private Space for a Hub LoRA. Steals make a Space/demo - [Hugging Face Train Sentence Transformers](/skills/huggingface-train-sentence-transformers.md): Router not a manual. Skip references/ and trainers break. Not generic embedding - [Hugging Face TRL Training](/skills/huggingface-trl-training.md): TRL CLI SFT/DPO/GRPO. Not huggingface-llm-trainer. GPU assumed, not 0 USD laptop - [Hugging Face hf-mem](/skills/huggingface-hf-mem.md): VRAM estimate via HTTP Range, no download. Needs uvx. Gated models need HF_TOKEN - [Novu Trigger Notification](/skills/novu-trigger-notification.md): knock-setup twin. Topic fan-out bills one run per matching subscriber - [Novu Manage Subscribers](/skills/novu-manage-subscribers.md): Not user-auth. subscriberId is not a Clerk/Auth.js user - [Novu Inbox Integration](/skills/novu-inbox-integration.md): knock-in-app-ui twin. Feeds, not Knock guides. HMAC required in production - [Novu Manage Preferences](/skills/novu-manage-preferences.md): Not Knock preferences API. Two-level model only (workflow + subscriber) - [Novu Framework Integration](/skills/novu-framework-integration.md): @novu/framework + Bridge. Cloud still executes Bridge. Not Resend-only react-email - [Novu Dashboard Workflows](/skills/novu-dashboard-workflows.md): MCP/dashboard step content, not framework-integration - [Trigger Getting Started](/skills/trigger-getting-started.md): Vendor lock. CLI login + TRIGGER_SECRET_KEY. Self-contained - [Trigger Authoring Tasks](/skills/trigger-authoring-tasks.md): CLI stub; 404s until @trigger.dev/sdk installed. False-fires on BullMQ/Inngest - [Trigger Authoring Chat Agent](/skills/trigger-authoring-chat-agent.md): CLI stub. Loud vs Vercel useChat / tanstack-ai-chat-experience - [Trigger Chat Agent Advanced](/skills/trigger-chat-agent-advanced.md): CLI stub. Version-gate. Re-POSTing /sessions drops the message - [Trigger Realtime and Frontend](/skills/trigger-realtime-and-frontend.md): CLI stub. Loud vs inngest-realtime. Free cap 10 concurrent Realtime - [Axiom Alerting](/skills/axiom-alerting.md): v2 monitors Bearer from .axiom.toml not Knock - [Axiom Building Dashboards](/skills/axiom-building-dashboards.md): False-fires on Grafana Datadog Splunk migrate - [Axiom Query Metrics](/skills/axiom-query-metrics.md): otel metrics v1 scripts 404 if only SKILL.md - [Axiom Metrics Chart](/skills/axiom-metrics-chart.md): Consumer of query-metrics zero-dep Unicode - [Axiom SPL to APL](/skills/axiom-spl-to-apl.md): Join preview 50k time pickers dont translate - [Contentful API](/skills/contentful-api.md): Five APIs curl-only false-fires vs JS SDK - [Contentful Next.js](/skills/contentful-nextjs.md): Next-only steals Remix Astro Nuxt vs Sanity - [Contentful Migration](/skills/contentful-migration.md): False-fires on Prisma Drizzle vs sanity-migration - [Contentful Custom App From Scratch](/skills/contentful-custom-app-from-scratch.md): App Framework only not marketing site - [Deno Deploy](/skills/deno-deploy.md): Deploy Free 1M req 20GiB egress not 100GB - [Deno Frontend](/skills/deno-frontend.md): Next-under-Deno false-fires vs Node Next - [Migrate to Deno](/skills/migrate-to-deno.md): Node runtime port false-fires - [Deno Sandbox](/skills/deno-sandbox.md): LOUD Sandboxes not on Free Pro 20 USD - [Logfire Instrumentation](/skills/logfire-instrumentation.md): configure vs instrument ordering silently drops traces - [Logfire Query](/skills/logfire-query.md): Personal Query API le 500 per day - [Logfire UI](/skills/logfire-ui.md): Codex-browser-shaped never-fires without browser - [Logfire Infrastructure](/skills/logfire-infrastructure.md): OTel Collector no app-code false-fires on k8s - [Logfire Evals](/skills/logfire-evals.md): Python-only pydantic_evals omit configure local - [Mixpanel Tracking Implementation](/skills/mixpanel-tracking-implementation.md): Vendor lock distinct from install false-fires analytics - [Mixpanel Create Dashboard](/skills/mixpanel-create-dashboard.md): Generic slug vs axiom dashboards Engine required - [Mixpanel Manage Feature Flags](/skills/mixpanel-manage-feature-flags.md): Not PostHog LaunchDarkly Engine required - [n8n Workflow Lifecycle](/skills/n8n-workflow-lifecycle-official.md): Official lifecycle false-fires on ad-hoc node dumps - [n8n Subworkflows](/skills/n8n-subworkflows-official.md): Official subworkflow false-fires on copy-paste nodes - [n8n Expressions](/skills/n8n-expressions-official.md): Expression false-fires on raw JS Code node - [n8n Loops](/skills/n8n-loops-official.md): Loop false-fires on SplitInBatches misuse - [n8n Code Nodes](/skills/n8n-code-nodes-official.md): JS/Python Code node false-fires on expressions - [Twilio Send Message](/skills/twilio-send-message.md): Vendor lock trial PAYG steal vs Knock Novu - [Twilio Verify Send OTP](/skills/twilio-verify-send-otp.md): Verify product not Programmable Messaging - [Twilio Voice Outbound Calls](/skills/twilio-voice-outbound-calls.md): Irreversible charged TCPA quiet hours - [Twilio Voice TwiML](/skills/twilio-voice-twiml.md): Webhook TwiML not REST dial pair outbound - [Twilio Studio Flows](/skills/twilio-studio-flows.md): Visual Studio vs TwiML code distinct from n8n - [Saleor Core](/skills/saleor-core.md): Internals encyclopedia version-gate 3.23 not getting-started - [Saleor App](/skills/saleor-app.md): Next.js examples claim framework-agnostic vs Contentful App - [Saleor Configurator](/skills/saleor-configurator.md): Store config as code vs Contentful migration scripts - [Saleor Storefront](/skills/saleor-storefront.md): GraphQL products checkout channels not Next starter - [Loops API](/skills/loops-api.md): Five product surfaces in one vendor lock - [Loops CLI](/skills/loops-cli.md): Overlaps loops-api distinct from resend-cli - [Loops LMX](/skills/loops-lmx.md): False-fires on generic welcome email React Email - [Temporal Developer](/skills/temporal-developer.md): Vendor lock + always-on-adjacent. start-dev is not production - [Temporal Ops](/skills/temporal-ops.md): CLI ops not SDK. Names temporal-workertuning. False-fires generic TLS/gRPC - [Temporal Cloud](/skills/temporal-cloud.md): Cloud-only. Not $0 — $1,000 credits expire 90 days then Essentials - [Appwrite CLI](/skills/appwrite-cli.md): CLI/config/CI not SDK. Cloud Free pauses after 1 week Console inactivity - [Appwrite TypeScript](/skills/appwrite-typescript.md): Web/RN/Node-Deno. TablesDB not deprecated Databases - [Appwrite Dart](/skills/appwrite-dart.md): Flutter or server Dart. Distinct from supabase-flutter - [Appwrite Python](/skills/appwrite-python.md): Django/Flask/FastAPI server SDK. Server-only no browser - [Appwrite Kotlin](/skills/appwrite-kotlin.md): Android or Kotlin/JVM. Activity OAuth/coroutines. Not Swift/KMP - [Stream Builder](/skills/stream-builder.md): Only when named. Do not auto-select. Web React defaults to stream-react - [Stream Feeds Migration](/skills/stream-feeds-migration.md): Feeds v2 to v3. Version-gate. Needs live v2 key+secret. Stale when v2 is gone - [Stream React](/skills/stream-react.md): Steals generic chat app. Web only not RN. Distinct from livekit-agents Knock Novu - [Stream React Native](/skills/stream-react-native.md): RN CLI/Expo. New Architecture required. Distinct from stream-react - [Stream Flutter](/skills/stream-flutter.md): Flutter Chat/Video/Feeds. Feeds has no pre-built UI. Distinct from appwrite-dart - [MLflow Onboarding](/skills/mlflow-onboarding.md): GenAI vs classic ML get-started router - [MLflow Instrumenting Tracing](/skills/mlflow-instrumenting-tracing.md): Add MLflow Tracing across Python/TS agent stacks - [MLflow Retrieving Traces](/skills/mlflow-retrieving-traces.md): Search/filter traces by ID, status, tags, latency - [MLflow Analyzing Trace](/skills/mlflow-analyzing-trace.md): One trace ID for debug, RCA, quality - [MLflow Querying Metrics](/skills/mlflow-querying-metrics.md): Aggregated token/latency/count from tracking server - [W&B Primary](/skills/wandb-primary.md): Mixed runs, artifacts, Weave, Reports, Launch - [W&B Autoresearch](/skills/wandb-autoresearch.md): Bounded training research via W&B Launch - [W&B Eval Tables](/skills/wandb-eval-tables.md): Non-destructive EvalTable previews from wandb.Table - [MinIO mc](/skills/minio-mc.md): AIStor mc CLI for S3-compatible storage - [MinIO AIMem](/skills/minio-aimem.md): AIStor Memory FUSE workspace for a remote bucket - [MinIO Docs](/skills/minio-docs.md): ISO 24495-1 plain-language README/guides - [Tigris Object Operations](/skills/tigris-object-operations.md): put/get/remove/list/head/presigned via @tigrisdata/storage - [Tigris Bucket Management](/skills/tigris-bucket-management.md): Create/list/inspect/delete with Tigris snapshot/fork fields - [Tigris S3 Migration](/skills/tigris-s3-migration.md): Shadow-bucket/drain from S3, GCS, or Azure Blob - [Tigris Snapshots Forking](/skills/tigris-snapshots-forking.md): Whole-bucket PITR and copy-on-write forks - [Tigris Agent Kit](/skills/tigris-agent-kit.md): tigrisdata agent-kit forks, TTL workspaces, checkpoints - [Tigris Lifecycle Management](/skills/tigris-lifecycle-management.md): Expiration, TTL delete, Standard to IA/Archive - [YugabyteDB YSQL](/skills/yugabyte-ysql.md): SQL/schema on YSQL port 5433 with shard keys - [YugabyteDB YCQL](/skills/yugabyte-ycql.md): CQL schema on YCQL port 9042 - [YugabyteDB RAG LangChain](/skills/yugabyte-rag-langchain.md): Hybrid vector+FTS via LangChain PGVectorStore - [YugabyteDB K8s Operator](/skills/yugabyte-k8s-operator.md): YBUniverse CRDs / Helm on Kubernetes - [Redpanda Streaming](/skills/redpanda-streaming.md): Produce/consume on Redpanda Kafka API :9092 - [Redpanda rpk Topic](/skills/redpanda-rpk-topic.md): Create/alter/produce/consume via rpk topic - [Redpanda rpk Transform](/skills/redpanda-rpk-transform.md): In-broker Wasm transforms via rpk transform - [Redpanda Connect](/skills/redpanda-connect.md): Declarative YAML pipelines (ex-Benthos) via rpk connect - [Redpanda rpk Redpanda](/skills/redpanda-rpk-redpanda.md): Self-managed broker lifecycle via rpk redpanda - [Redpanda Cloud Serverless](/skills/redpanda-cloud-serverless.md): Provision Serverless via Control Plane API - [ScyllaDB Data Modeling](/skills/scylladb-data-modeling.md): CQL schema, partition keys, query-first design - [ScyllaDB Alternator](/skills/scylladb-alternator.md): DynamoDB-compatible API via Alternator - [ScyllaDB Kubernetes](/skills/scylladb-kubernetes.md): Operator / ScyllaCluster CRDs, CPU pinning, NVMe - [ScyllaDB Vector Search](/skills/scylladb-vector-search.md): HNSW / ANN / RAG vectors on ScyllaDB Cloud - [ScyllaDB Cloud Setup](/skills/scylladb-cloud-setup.md): Connect apps to ScyllaDB Cloud clusters - [Buildkite Pipelines](/skills/buildkite-pipelines.md): Write/optimize .buildkite/pipeline.yml - [Buildkite CLI](/skills/buildkite-cli.md): bk CLI — trigger/watch/cancel builds - [Buildkite API](/skills/buildkite-api.md): REST/GraphQL at api.buildkite.com - [Buildkite Agent Runtime](/skills/buildkite-agent-runtime.md): In-step buildkite-agent annotate/artifacts/OIDC - [Buildkite Migration](/skills/buildkite-migration.md): Convert GHA/Jenkins/Circle via bk pipeline convert - [Buildkite Preflight](/skills/buildkite-preflight.md): Run Buildkite CI against local tree before push - [GrowthBook Feature Flags](/skills/growthbook-feature-flags.md): Create/toggle/target/roll out GrowthBook flags - [GrowthBook Experiments](/skills/growthbook-experiments.md): Design/launch/analyze GrowthBook A/B tests - [GrowthBook Analytics](/skills/growthbook-analytics.md): Product Analytics explorations + fact-metric catalog - [GrowthBook Setup](/skills/growthbook-setup.md): Configure GB_API_KEY for GrowthBook skills - [Descope Auth](/skills/descope-auth.md): Add Descope login (OTP, passkeys, OAuth, SSO, MFA) - [Descope FGA Schema](/skills/descope-fga-schema.md): Author/apply Descope FGA ReBAC/ABAC DSL - [Descope BYOS Builder](/skills/descope-byos-builder.md): React Bring-Your-Own-Screen over Descope flow JSON - [Descope Terraform](/skills/descope-terraform.md): Terraform provider for Descope projects - [Flux GitOps Knowledge](/skills/flux-gitops-knowledge.md): Flux concepts + schema-validated GitOps YAML - [Flux GitOps Repo Audit](/skills/flux-gitops-repo-audit.md): Audit a local GitOps repo (schema, RBAC, secrets) - [Flux GitOps Cluster Debug](/skills/flux-gitops-cluster-debug.md): Debug stuck Flux resources on a live cluster - [SigNoz MCP Setup](/skills/signoz-mcp-setup.md): Wire/repair SigNoz MCP (Cloud OAuth vs self-host) - [SigNoz Investigating Alerts](/skills/signoz-investigating-alerts.md): RCA a firing alert via neighbor metrics/traces/logs - [SigNoz Writing ClickHouse Queries](/skills/signoz-writing-clickhouse-queries.md): Raw ClickHouse SQL for a SigNoz dashboard panel - [SigNoz Reducing Telemetry Cost](/skills/signoz-reducing-telemetry-cost.md): Cost Meter, cardinality, drop volume - [SigNoz Managing Views](/skills/signoz-managing-views.md): Explorer saved views (traces/logs/metrics/meter) - [Packer AWS AMI Builder](/skills/packer-aws-ami-builder.md): amazon-ebs builder for custom EC2 AMIs - [Packer Azure Image Builder](/skills/packer-azure-image-builder.md): azure-arm builder for managed images / Gallery - [Packer Windows Builder](/skills/packer-windows-builder.md): WinRM + PowerShell provisioners (AMI/Azure/VMware) - [Packer Push to Registry](/skills/packer-push-to-registry.md): Push metadata (not images) to HCP Packer - [Elastic Observability K8s Investigation](/skills/elastic-observability-k8s-investigation.md): CrashLoopBackOff / OOMKilled via EDOT OTel - [Elastic Security Detection Rule Management](/skills/elastic-security-detection-rule-management.md): SIEM/Endpoint detection rules via Kibana API - [Elastic Security Alert Triage](/skills/elastic-security-alert-triage.md): Triage Elastic Security alerts, classify, acknowledge - [Elastic Security Case Management](/skills/elastic-security-case-management.md): Kibana Cases API (securitySolution only) - [Elastic Cloud Provisioning](/skills/elastic-cloud-provisioning.md): Create/update/delete Serverless + Hosted deployments - [Grafana Alloy](/skills/grafana-alloy.md): Unified OTel-compatible collector (config.alloy) - [Grafana Beyla](/skills/grafana-beyla.md): eBPF zero-code HTTP/gRPC/DB auto-instrument - [Grafana Loki](/skills/grafana-loki.md): Log aggregation + LogQL - [Grafana Tempo](/skills/grafana-tempo.md): Tracing backend (OTLP/Jaeger/Zipkin, TraceQL) - [Grafana Pyroscope](/skills/grafana-pyroscope.md): Continuous profiling / flame graphs - [Render Blueprints](/skills/render-blueprints.md): Author/validate render.yaml IaC - [Render Postgres](/skills/render-postgres.md): Render Managed Postgres - [Render Key Value](/skills/render-keyvalue.md): Redis-compatible Valkey 8 on Render - [Render CLI](/skills/render-cli.md): Deploys, logs, SSH, psql, Blueprint validate - [Render MCP](/skills/render-mcp.md): Hosted MCP at mcp.render.com - [Confluent Kafka Schema Registry](/skills/confluent-kafka-schema-registry.md): Scan repo, extract schemas, Terraform for Schema Registry - [Confluent Kafka Streams](/skills/confluent-kafka-streams.md): JVM-embedded Kafka Streams (KStream/KTable) - [Confluent Kafka Java Client](/skills/confluent-kafka-java-client.md): Java producer/consumer + Schema Registry serializers - [Confluent Flink UDF](/skills/confluent-flink-udf.md): Java Flink UDFs/UDTFs/PTFs for Cloud or local Docker - [Confluent Cloud Flink SQL](/skills/confluent-cloud-flink-sql.md): Flink SQL on Confluent Cloud (CC ≠ OSS dialect) - [PostHog Instrument Error Tracking](/skills/posthog-instrument-error-tracking.md): Capture exceptions + source maps - [PostHog Creating Experiments](/skills/posthog-creating-experiments.md): 3-step experiment create (hypothesis → rollout → analytics) - [PostHog Exploring LLM Traces](/skills/posthog-exploring-llm-traces.md): Debug LLM/agent traces (posthog.ai_events) - [PostHog Investigating Replay](/skills/posthog-investigating-replay.md): One-pass session recording + person + linked errors - [PostHog Cleaning Up Stale Feature Flags](/skills/posthog-cleaning-up-stale-feature-flags.md): Audit unused/fully-rolled-out flags and safe delete - [Letta API Client](/skills/letta-api-client.md): Python/TS SDK for stateful Letta API - [Letta Configuration](/skills/letta-configuration.md): Model handles, BYOK providers, self-hosted env vars - [Letta Fleet Management](/skills/letta-fleet-management.md): kubectl-style lettactl for multi-agent fleets - [Letta Code Channels](/skills/letta-code-channels.md): Letta Code channel adapters (Telegram/WhatsApp/Slack/Discord) - [Letta Filesystem to MemFS](/skills/letta-filesystem-to-memfs.md): Migrate deprecated Filesystem folders to MemFS - [Firecrawl Scrape](/skills/firecrawl-scrape.md): CLI: extract a URL as clean markdown (JS-rendered OK) - [Firecrawl Search](/skills/firecrawl-search.md): CLI: web search with optional full page content - [Firecrawl Interact](/skills/firecrawl-interact.md): CLI: drive a live browser on a scraped page - [Apollo Client](/skills/apollo-client.md): Apollo Client 4.x for React — queries, cache, local state - [Apollo Server](/skills/apollo-server.md): Apollo Server 5.x — schemas, resolvers, auth, plugins - [Apollo Federation](/skills/apollo-federation.md): Federation 2.x subgraph schemas (@key, @shareable) - [Apollo Router](/skills/apollo-router.md): Configure/run Apollo Router for federated supergraphs - [Apollo Rover](/skills/apollo-rover.md): Rover CLI — publish/fetch/compose/check schemas - [Camunda c8ctl](/skills/camunda-c8ctl.md): Install/configure c8ctl, local cluster via c8run - [Camunda BPMN](/skills/camunda-bpmn.md): Create/edit/validate BPMN 2.0 for Camunda 8 (Zeebe) - [Camunda FEEL](/skills/camunda-feel.md): Write/debug FEEL expressions in BPMN, DMN, Forms - [Camunda DMN](/skills/camunda-dmn.md): Author DMN decision tables and literal expressions - [Camunda Job Workers](/skills/camunda-job-workers.md): Job workers in Java, Spring Boot, or TypeScript - [ImageKit Upload Files](/skills/imagekit-upload-files.md): Upload images/videos from a public URL into the library - [ImageKit Transformation Builder](/skills/imagekit-transformation-builder.md): Image/video transformation URLs (resize, crop, AI, overlays) - [ImageKit Search Assets](/skills/imagekit-search-assets.md): Lucene-like searchQuery for files/folders - [ImageKit AI Tasks](/skills/imagekit-ai-tasks.md): AI tagging, metadata extraction, quality checks - [ImageKit Integrations](/skills/imagekit-integrations.md): Index of SDKs/plugins (front-end, back-end, mobile, CMS) - [ZenML Quick Wins](/skills/zenml-quick-wins.md): Investigate stack, recommend, implement high-impact ZenML features - [ZenML Pipeline Authoring](/skills/zenml-pipeline-authoring.md): Author @step/@pipeline, artifacts, Docker, materializers, YAML - [ZenML Scoping](/skills/zenml-scoping.md): Decompose ambitious ML workflows into pipeline architectures - [ZenML Airflow Migration](/skills/zenml-airflow-migration.md): Migrate Airflow DAGs to idiomatic ZenML (frontmatter airflow-to-zenml-migration) - [ZenML SageMaker Migration](/skills/zenml-sagemaker-migration.md): Migrate SageMaker Pipelines DSL to idiomatic ZenML - [LaunchDarkly Flag Create](/skills/launchdarkly-flag-create.md): Create/configure flags to match existing codebase patterns - [LaunchDarkly Flag Targeting](/skills/launchdarkly-flag-targeting.md): Toggle, percentage rollouts, rules, individual targets, env copy - [LaunchDarkly Guarded Rollout](/skills/launchdarkly-guarded-rollout.md): Progressive rollout with metric monitoring and auto rollback - [LaunchDarkly Flag Cleanup](/skills/launchdarkly-flag-cleanup.md): Safely remove a flag from code preserving production behavior - [LaunchDarkly Experiment Setup](/skills/launchdarkly-experiment-setup.md): Create experiments with metrics, treatments, start/stop iterations - [Builder Visual Edit](/skills/builder-visual-edit.md): Inspect/edit a running local app visually in Design iframes - [Builder Visual Plan](/skills/builder-visual-plan.md): Turn text plans into interactive visual plans with diagrams - [Builder Visual Recap](/skills/builder-visual-recap.md): Visual recap of a PR/branch/commit/diff with diagrams - [Builder WebMCP](/skills/builder-webmcp.md): Use a page MCP/WebMCP tools before UI automation - [Builder Agent Watchdog](/skills/builder-agent-watchdog.md): Watch/audit/fix another agent session, PR, or transcript - [Flyte SDK Author](/skills/flyte-sdk-author.md): Scaffold Flyte 2 projects, tasks, workflows, launch plans - [Flyte SDK Run](/skills/flyte-sdk-run.md): Run Flyte 2 workflows; logs, data, run lifecycle - [Flyte SDK Data](/skills/flyte-sdk-data.md): ETL, data quality, fanout/map task data patterns - [Flyte SDK ML](/skills/flyte-sdk-ml.md): Training, HPO, experiment tracking on Flyte - [Flyte SDK Ship](/skills/flyte-sdk-ship.md): flyte.Image specs, Dockerfiles, dependency and tagging - [Running dbt Commands](/skills/running-dbt-commands.md): Format and execute dbt CLI with the right executable - [Adding dbt Unit Test](/skills/adding-dbt-unit-test.md): Unit test YAML mocking upstream model inputs - [Building dbt Semantic Layer](/skills/building-dbt-semantic-layer.md): Create or modify Semantic Layer components - [Configuring dbt MCP Server](/skills/configuring-dbt-mcp-server.md): MCP server JSON and auth for dbt - [Maintaining dbt Documentation](/skills/maintaining-dbt-documentation.md): Audit coverage; draft missing model/column docs - [Rivet Actors](/skills/rivet-actors.md): Actors: the primitive for agent orchestration - [Rivet agentOS](/skills/rivet-agentos.md): agentOS: a computer for every agent (Beta) - [Rivet Dynamic Apps](/skills/rivet-dynamic-apps.md): Deploy an AI-generated backend per user (Beta) - [Rivet Workflows](/skills/rivet-workflows.md): Durable, replayable multi-step operations - [Polar Setup](/skills/polar-setup.md): Interactive onboarding wizard for Polar payments - [Polar Integration](/skills/polar-integration.md): Checkout, Customer Portal, and Webhooks via @polar-sh/sdk - [Polar Migration](/skills/polar-migration.md): Migrate from Stripe Billing, Paddle, Lemon Squeezy, Gumroad - [Polar Testing](/skills/polar-testing.md): Sandbox, test cards, webhooks, CI for Polar - [Gemini API Dev](/skills/gemini-api-dev.md): Text, chat, multimodal, tools via Gemini API SDKs - [Gemini Live API Dev](/skills/gemini-live-api-dev.md): Realtime bidirectional audio/video/text streaming - [Gemini Omni Flash API](/skills/gemini-omni-flash-api.md): Generative video edit/gen with Omni 1.1 Flash - [Statsig MCP](/skills/statsig-mcp.md): Inspect and manage gates, experiments, configs via Statsig MCP - [Statsig Create Cloud Metric](/skills/statsig-create-cloud-metric.md): Create Cloud metrics via Console API - [Statsig Dashboard](/skills/statsig-dashboard.md): Create or read dashboards via Console API - [Ory Local Dev](/skills/ory-local-dev.md): Local Kratos/Keto/Hydra stack on :4000 without Network - [Ory Auth Setup](/skills/ory-auth-setup.md): Ory Network auth with Elements as default UI - [Ory Login Flow](/skills/ory-login-flow.md): Elements pages for login, signup, recovery, settings - [Ory Social Login](/skills/ory-social-login.md): OIDC providers (Google, GitHub, Apple, …) on Ory - [Ory Permissions Onboarding](/skills/ory-permissions-onboarding.md): Agent-tool auth: observe → enforce, default-allow + deny - [VoltAgent Create](/skills/voltagent-create.md): CLI / manual bootstrap for VoltAgent agent projects - [VoltAgent Best Practices](/skills/voltagent-best-practices.md): Agents vs workflows, layout, memory, servers, observability - [VoltAgent Core Reference](/skills/voltagent-core-reference.md): VoltAgent class: constructor, lifecycle, runtime - [VoltAgent Docs Bundle](/skills/voltagent-docs-bundle.md): Version-matched docs from @voltagent/core/docs - [CircleCI Builds](/skills/circleci-builds.md): Diagnose failing jobs and flaky pipelines - [CircleCI CLI](/skills/circleci-cli.md): Auth, validate, watch runs, logs, rerun/cancel - [CircleCI Config](/skills/circleci-config.md): Optimize .circleci/config.yml cache and parallelism - [CircleCI Onboard](/skills/circleci-onboard.md): Account → org → GitHub App → project → pipeline - [CircleCI Testsuite](/skills/circleci-testsuite.md): .circleci/test-suites.yml + testsuite doctor - [Xata Using API](/skills/xata-using-api.md): HTTP API for orgs, projects, branches, auth - [Xata Using CLI](/skills/xata-using-cli.md): xata CLI, pgroll, scratch branches, metrics - [Xata Managing PostgreSQL](/skills/xata-managing-postgresql.md): PG ops and performance in a Xata branch ## Now - What we are doing this week: /now - Value first. Not a price list. ## Log - The date stamp is a trigger channel: OpenCode's auto "today's date" × open-weight LoRA = time-release shell. - The agent's word is not evidence: Approval answers “may it run?” — not “what did it do / can you prove it?” - The skill that never fires: Docs packed into a skill still wait to be asked. Vercel Next.js 16 evals: the agent never invoked the skill in 56% of runs — the same knowledge in AGENTS.md did not wait. - The MCP tax is real. CLI is not a cope.: Tool schemas can eat the window before you type a prompt. That is the debate this week, not “MCP is dead.” - Close the laptop. The agent should keep working.: Localhost dies when the lid shuts. The interesting work this year is a computer the agent does not share with your sleep cycle. - The useful post is the catch, not the launch.: Setup and gotcha is what people save. Launch threads are noise. - Full log: /log ## Machine Access - Full catalog: /llms-full.txt - JSON API: GET /api/gems, GET /api/gems/{slug}, GET /api/tools (alias of /api/gems), GET /api/tools/{slug}, GET /api/stacks, GET /api/skills, GET /api/skills/{slug} - OpenAPI: /openapi.json - API catalog (RFC 9727): /.well-known/api-catalog - Auth policy (none required): /auth.md - Raw markdown: /gems/{slug}.md, /skills/{slug}.md (or Accept: text/markdown on HTML pages) - Badges (free): /badge/{slug}.svg, /badge/tool.svg, /badge/skill/{id}.svg - Landings: /tag/{capability}, /best/{sub-specialty}-for-{ecosystem}, /compare/{slug-a}-vs-{slug-b} (generated only when >=2 overlapping gems) - RSS feed: /feed.xml - Sitemap: /sitemap.xml - Submit a gem: POST /api/submit - Review queue (human veto, not auto-published): POST /api/reviews ## Contact Submit tools via /submit or POST /api/submit