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flags-sdk

Set up and use feature flags and A/B tests with the Flags SDK (`flags` npm package) and Vercel Flags. Use when installing or configuring the SDK, adding a new or existing flag, wiring `vercelAdapter` (OIDC or SDK keys), declaring flags with `flag()`, using the `vercel flags` CLI (create, inspect, list, enable, disable, set, update, split, rollout, rules, segments, use-targeting, evaluations, versions, open, archive, unarchive, rm, sdk-keys, override, prepare), setting up providers/adapters (Vercel, Statsig, LaunchDarkly, PostHog, GrowthBook, Global Config, OpenFeature, Split, Flagsmith, Reflag

chat-sdk

Build multi-platform chat bots with Chat SDK (`chat` npm package). Use when developers want to scaffold a bot with create-chat-sdk, build a Slack, Teams, Google Chat, Discord, Telegram, GitHub, Linear, or WhatsApp bot, handle mentions, direct messages, subscribed threads, reactions, slash commands, cards, modals, files, or AI streaming, set up webhook routes or multi-adapter bots, send rich cards or streamed AI responses to chat platforms, or build a custom adapter or state adapter.

update-provider-models

Add new or remove obsolete model IDs for existing AI SDK providers. Use when adding a model to a provider, removing an obsolete model, or processing a list of model changes from an issue. Triggers on "add model", "remove model", "new model ID", "obsolete model", "update model IDs".

update-harness-dependencies

Update the primary SDK dependencies of harness packages. Use when asked to update the harness SDKs or harness adapter dependencies.

major-version-mode

Context for working on the next AI SDK major release. Only use when explicitly invoked by the user (e.g. via '/major-version-mode'). Do NOT trigger autonomously based on task content.

add-provider-package

Guide for adding first-party AI provider packages to the AI SDK. Use when creating a provider package under packages/ to integrate an external AI service.

api-types

Maintain Supabase API types. Use when changing generated API type declarations, OpenAPI schemas, or investigating API type deployment drift.

xurl

xurl X API CLI: install, auth, app choice, shortcuts, raw endpoints.

stably-sdk-setup

Expert setup assistant for the Stably Playwright SDK. Use this skill when installing Stably SDK in a new project, migrating from @playwright/test, or configuring Stably reporter for CI/CD. Triggers on tasks like "setup stably", "install stably sdk", or "configure playwright with stably".

stably-sdk-rules

AI rules for writing tests with Stably Playwright SDK. Use this skill when writing or modifying Playwright tests with Stably AI features. Covers when to use Playwright vs Stably methods, plus minimal patterns for aiAssert, extract, getLocatorsByAI, agent.act, Inbox, and Google auth.

federation-init

Initialize federation on this node — generate keypair and configure peers

api-docs

Generate API documentation from source code with JSDoc and OpenAPI support

deepseek-reason

Reasoning-mode completion against DeepSeek's `deepseek-reasoner` model (R1) via /v1/chat/completions. Surfaces the model's chain-of-thought (`reasoning_content`) separately from the final answer (`content`), so callers can display or discard the CoT without re-parsing. Reads DEEPSEEK_API_KEY; degrades gracefully (exit 0 with status:degraded envelope) when unset or the API is unreachable. Ignores temperature/top_p per DeepSeek's spec for reasoner models.

pii-detect

Detect and flag personally identifiable information (PII) in text, code, and configurations. Use before committing code, writing logs, storing data, or sending model responses that might contain emails, phone numbers, SSNs, API keys, or passwords.

no-bare-casts

Writing `as` in TypeScript or TSX production code, modifying a file that contains a bare `as` cast, silencing a type error with a cast, encountering `as unknown as`, or reviewing a cast site.

ast-visitor-pattern

Use the frozen-class/visitor pattern for discriminated unions that have multiple dispatch sites. Use when creating a new set of variants (commands, IR nodes, factory calls) that will be switched over in 2+ places, or when refactoring an existing union type that has grown multiple switch sites.

no-bare-casts

Writing `as` in TypeScript or TSX production code, modifying a file that contains a bare `as` cast, silencing a type error with a cast, encountering `as unknown as`, or reviewing a cast site.

ast-visitor-pattern

Use the frozen-class/visitor pattern for discriminated unions that have multiple dispatch sites. Use when creating a new set of variants (commands, IR nodes, factory calls) that will be switched over in 2+ places, or when refactoring an existing union type that has grown multiple switch sites.

winapp-troubleshoot

Diagnose and fix common Windows app packaging, signing, identity, and SDK errors. Use when encountering errors with MSIX packaging, certificate signing, Windows SDK setup, or app installation.

winapp-identity

Enable Windows package identity for desktop apps to access Windows APIs like push notifications, background tasks, share target, and startup tasks. Use when adding Windows notifications, background tasks, or other identity-requiring Windows features to a desktop app.

winapp-find-api

Agent-first search and inspection of the Windows/WinRT API surface (types, members, enums, namespaces) available to a project, resolved from its referenced .winmd/.dll metadata — or, outside any project, from the machine-wide Windows SDK. Built primarily for AI coding agents to ground code generation in real metadata instead of guessing, and equally usable by hand. Use when an AI agent or developer needs to discover an API, list a type's properties/events/methods, validate that a property exists before writing XAML/code, enumerate an enum's values, explore the namespaces and packages a project

perf

Speed and memory performance rules for Rust crates, the Node addon, webui-framework, and webui-router.

python-manager-discovery

Environment manager-specific discovery patterns and known issues. Use when working on or reviewing environment discovery code for conda, poetry, pipenv, pyenv, or venv.

anthropic-sdk-upgrader

Use this agent when the user needs to upgrade Anthropic SDK packages. This includes: upgrading @anthropic-ai/sdk or @anthropic-ai/claude-agent-sdk to newer versions, migrating between SDK versions, resolving SDK-related dependency conflicts, updating SDK types and interfaces, or asking about SDK upgrade procedures. Examples: 'Upgrade the Anthropic SDK to the latest version', 'Help me migrate to the latest claude-agent-sdk', 'What's the process for upgrading Anthropic packages?'

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