Robel auth skill

Use this skill when a user asks to implement, update, or debug auth based on robelest/convex-auth.

This skill is designed to be copied into other repos.

Non negotiable upstream check before any auth change

Run this every time before proposing code or commands.

Preferred command:

bash .agents/skills/robel-auth/scripts/check-upstream.sh

Manual checklist if script is unavailable:

1. Read official docs: https://auth.estifanos.com/getting-started/installation/
2. Read latest main README: https://raw.githubusercontent.com/robelest/convex-auth/main/README.md
3. Read latest release README: https://raw.githubusercontent.com/robelest/convex-auth/release/README.md
4. Check branch level differences: https://github.com/robelest/convex-auth/compare/release...main
5. Read current self hosting docs if portal or static hosting is involved:
   • https://raw.githubusercontent.com/get-convex/self-hosting/main/INTEGRATION.md
   • https://github.com/get-convex/self-hosting

If main and release conflict, prefer the branch requested by the user. If unspecified, use release for stability and explain that choice.

Important assumptions for this skill

• Treat the official docs site (auth.estifanos.com) and GitHub as sources of truth every time.
• Do not assume npm package availability.
• Validate package availability at execution time.
• If npm is unavailable, use a GitHub source install pinned to a branch or commit.
• Keep all Convex code type safe and validator complete.

Published package reality check (critical)

The docs site (auth.estifanos.com) and main branch often describe APIs ahead of the latest preview release on npm. Before writing imports, always inspect what the installed version actually exports:

ls node_modules/@robelest/convex-auth/dist/providers/
cat node_modules/@robelest/convex-auth/dist/providers/index.js
cat node_modules/@robelest/convex-auth/dist/component/index.d.ts

As of 0.0.4-preview.25 the installed package ships:

• PascalCase class/factory exports: Password, OAuth, Passkey, Credentials, Anonymous, Device, Email, Phone, SSO, Totp (not lowercase password, oauth, etc. that the docs show).
• Password, Credentials, etc. are classes. Use new Password(), not Password().
• OAuth is a factory function: OAuth(provider, config).
• No first-party provider files exist yet (no github.js, google.js, etc.). For GitHub, Google, Apple, Microsoft, you still wrap an arctic provider in OAuth() and supply a profile callback.
• createAuth is available from @robelest/convex-auth/component and is the correct entry point.
• The client factory now requires api in SPA mode: client({ convex, api: api.auth }). Omitting api throws "The \api` option is required when `proxyPath` is not set. Pass { api: api.auth }."at firstsignIn/signOut/verifyCodecall. OnlyproxyPath` mode can skip it.

If the docs show a lowercase factory like github({ ... }) but the installed package only exports PascalCase classes and OAuth, follow the installed package and note the drift to the user. Do not blindly copy doc examples.

Clarifying questions to ask first

Ask these before editing:

1. Which branch is source of truth for this task, release or main.
2. Is this a new integration or an update to an existing auth setup.
3. Which framework is used: Vite, Next.js, SvelteKit, TanStack Start, Expo web, or other.
4. Is self hosted portal/static delivery needed now.
5. Are they okay pinning dependency to a specific Git commit for reproducibility.

Install and dependency strategy

Never assume one install path.

1. Try package registry lookup:
   • npm view @robelest/convex-auth version
2. If package is unavailable or blocked, install from GitHub:
   • npm install github:robelest/convex-auth#release
3. For deterministic builds, pin a commit SHA:
   • npm install github:robelest/convex-auth#<commit-sha>

If the project uses pnpm or bun, translate the same GitHub dependency pinning pattern.

Quick setup (CLI wizard)

The recommended setup flow:

1. Install @robelest/convex-auth
2. Start a Convex deployment with convex dev
3. Run the auth setup wizard

The wizard handles key generation, convex.config.ts, auth.ts, and http.ts automatically.

Core wiring (3 files)

1. Register the component

// convex/convex.config.ts
import { defineApp } from "convex/server";
import auth from "@robelest/convex-auth/convex.config";

const app = defineApp();
app.use(auth);
export default app;

2. Configure auth

// convex/auth.ts
import { createAuth } from "@robelest/convex-auth/component";
import { components } from "./_generated/api";
import { github } from "@robelest/convex-auth/providers/github";

const auth = createAuth(components.auth, {
  providers: [
    github({
      clientId: process.env.AUTH_GITHUB_ID!,
      clientSecret: process.env.AUTH_GITHUB_SECRET!,
    }),
  ],
});

export { auth };
export const { signIn, signOut, store } = auth;

3. Wire up HTTP routes

// convex/http.ts
import { httpRouter } from "convex/server";
import { auth } from "./auth";

const http = httpRouter();
auth.http.add(http);
export default http;

auth.http.add registers OAuth callbacks and JWKS endpoints in one call.

API layers

Client auth flow: signIn, signOut, and store are the only required client-callable auth functions. Frontends use them through client({ convex, api: api.auth }).

Server helpers: auth.user.*, auth.session.*, auth.account.*, auth.group.*, auth.member.*, auth.invite.*, auth.key.*, auth.http.*, auth.group.sso.*, and auth.group.sso.scim.* are server-side helpers for Convex code. They are not automatically public RPC.

Optional group SSO RPC: If your app wants client-callable group SSO admin APIs, expose app-owned wrappers such as convex/auth/group.ts.

Available providers

All providers import from @robelest/convex-auth/providers:

import {
  anonymous,
  apple,
  custom,
  email,
  github,
  google,
  microsoft,
  passkey,
  password,
  phone,
  sso,
  totp,
} from "@robelest/convex-auth/providers";

OAuth providers

Provider	Factory	Required env vars
GitHub	github({ clientId, clientSecret })	AUTH_GITHUB_ID, AUTH_GITHUB_SECRET
Google	google({ clientId, clientSecret })	AUTH_GOOGLE_ID, AUTH_GOOGLE_SECRET
Apple	apple({ clientId, teamId, keyId, privateKey })	AUTH_APPLE_ID, AUTH_APPLE_TEAM_ID, AUTH_APPLE_KEY_ID, AUTH_APPLE_PRIVATE_KEY
Microsoft	microsoft({ tenant, clientId, clientSecret? })	AUTH_MICROSOFT_TENANT_ID, AUTH_MICROSOFT_ID

All OAuth wrappers derive callback URL from CONVEX_SITE_URL automatically.

Custom OAuth

Use custom() for providers without a first-party wrapper:

custom({
  id: "discord",
  clientId: process.env.AUTH_DISCORD_ID!,
  clientSecret: process.env.AUTH_DISCORD_SECRET!,
  scopes: ["identify", "email"],
  authorization: { url: "https://discord.com/oauth2/authorize", pkce: "optional" },
  token: { url: "https://discord.com/api/oauth2/token", authMethod: "body" },
  profile: async ({ accessToken }) => {
    const res = await fetch("https://discord.com/api/users/@me", {
      headers: { Authorization: `Bearer ${accessToken}` },
    });
    const user = await res.json();
    return { id: String(user.id), email: user.email, name: user.username };
  },
})

Non-OAuth providers

Provider	Factory	Notes
Password	password()	Built-in password auth
Magic links	email({ from, send })	Requires email transport (e.g. Resend)
Passkeys	passkey()	WebAuthn based
TOTP	totp({ issuer })	Authenticator app codes
Anonymous	anonymous()	Guest sessions
Phone/SMS	phone({ send })	Requires SMS transport (e.g. Twilio)
Group SSO	sso()	Enables OIDC, SAML 2.0, SCIM 2.0

Configuration options

const auth = createAuth(components.auth, {
  providers: [/* ... */],
  session: {
    totalDurationMs: 30 * 24 * 60 * 60 * 1000,   // 30 days
    inactiveDurationMs: 7 * 24 * 60 * 60 * 1000,  // 7 days
  },
  jwt: {
    durationMs: 60 * 1000,  // 1 minute
  },
  signIn: {
    max_failed_attempts_per_hour: 10,
  },
  callbacks: {
    afterUserCreatedOrUpdated: async (ctx, { userId, existingUser }) => { /* ... */ },
  },
  authorization: {
    roles,  // from defineRoles()
  },
});

Option	Type	Default	Description
providers	AuthProviderConfig[]	required	Auth methods to enable
session.totalDurationMs	number	30 days	Maximum session lifetime
session.inactiveDurationMs	number	varies	Inactive session timeout
jwt.durationMs	number	60s	JWT token lifetime
signIn.max_failed_attempts_per_hour	number	10	Rate limit for failed sign-in attempts
callbacks.afterUserCreatedOrUpdated	function	none	Post sign-in hook
authorization.roles	Record	{}	App-defined role definitions and grants

Multi-access patterns

Every auth path resolves to the same userId. Three access patterns:

Pattern	Context	How userId is available
App code (query/mutation/action)	auth.ctx()	ctx.auth.userId and ctx.auth.user
Raw HTTP (session or API key)	auth.http.context(ctx, request)	authContext.userId
API key HTTP	auth.http.action(...)	ctx.key.userId

Auth-aware custom functions

// convex/functions.ts
import { customMutation, customQuery } from "convex-helpers/server/customFunctions";
import { mutation, query } from "./_generated/server";
import { auth } from "./auth";

export const authQuery = customQuery(query, auth.ctx());
export const authMutation = customMutation(mutation, auth.ctx());

Use auth.ctx({ optional: true }) when the same handler should work for both guests and signed-in users.

Raw HTTP mixed auth

http.route({
  path: "/api/data",
  method: "GET",
  handler: httpAction(async (ctx, request) => {
    const authContext = await auth.http.context(ctx, request, { optional: true });
    if (authContext.userId === null) {
      return new Response(JSON.stringify({ error: "Unauthorized" }), { status: 401 });
    }
    const data = await ctx.runQuery(internal.data.forUser, { userId: authContext.userId });
    return Response.json(data);
  }),
});

Authorization patterns

Define roles with grants

import { defineRoles } from "@robelest/convex-auth/authorization";

export const roles = defineRoles({
  orgAdmin: {
    label: "Organization Admin",
    grants: ["members.create", "members.update", "members.delete", "sso.connection.manage", "scim.manage"],
  },
  support: {
    label: "Support",
    grants: ["members.read", "tickets.manage"],
  },
  member: {
    label: "Member",
    grants: [],
  },
});

Assign roles via memberships

await auth.member.create(ctx, { userId, groupId: orgId, roleIds: [roles.orgAdmin.id] });
await auth.member.update(ctx, memberId, { roleIds: [roles.support.id] });
await auth.invite.create(ctx, { groupId: orgId, email: "email-address", roleIds: [roles.member.id] });

Check grants (not role names)

// Boolean check
const result = await auth.member.inspect(ctx, { userId: ctx.auth.userId, groupId: orgId });
if (result.grants.includes("members.read")) { /* authorized */ }

// Throwing check
await auth.member.require(ctx, { userId: ctx.auth.userId, groupId: orgId, grants: ["sso.connection.manage"] });

auth.user API

Method	Signature	Returns	Description
get	(ctx, userId)	Doc<"User"> | null	Fetch user by ID
list	(ctx, { where?, limit?, cursor? })	Paginated list	List users with filtering
update	(ctx, userId, data)	{ userId }	Update user fields
viewer	(ctx)	Doc<"User"> | null	Current session user document
delete	(ctx, userId, { cascade? })	{ userId }	Delete user; cascade removes sessions, accounts, memberships, keys
setActiveGroup	(ctx, { userId, groupId })	{ userId, groupId }	Set active group
getActiveGroup	(ctx, { userId })	Id<"Group"> | null	Get active group ID

Group SSO

Adding sso() to providers enables auth.group.sso.* namespace. Without it, the namespace is a TypeScript error.

Protocol	Purpose	Namespace
OIDC	OpenID Connect identity provider login	auth.group.sso.oidc
SAML 2.0	Security Assertion Markup Language login	auth.group.sso.saml
SCIM 2.0	Cross-domain user/group provisioning	auth.group.sso.scim

All SSO configuration is per-tenant runtime state stored in the Convex database. No app-level config file needed.

Optional SSO hooks:

const auth = createAuth(components.auth, {
  providers: [sso()],
  sso: {
    hooks: {
      profileResolved: async ({ protocol, profile }) => profile,
      beforeProvision: async ({ protocol, profile }) => profile,
      afterProvision: async ({ protocol, userId }) => {},
      allowLink: async ({ protocol, userId, profile }) => true,
    },
  },
});

GitHub OAuth setup instructions for end users

Required link: https://github.com/settings/developers

1. Go to GitHub Developer Settings: https://github.com/settings/developers
2. Create a new OAuth App.
3. Set:
   • Homepage URL = app frontend URL (same as SITE_URL)
   • Authorization callback URL = https://<deployment>.convex.site/api/auth/callback/github
4. Copy Client ID and Client Secret.
5. Set Convex env vars: AUTH_GITHUB_ID, AUTH_GITHUB_SECRET
6. Confirm SITE_URL and CONVEX_SITE_URL are configured.
7. Deploy and test sign in.

In this codebase, GitHub OAuth is conditionally enabled only when AUTH_GITHUB_ID, AUTH_GITHUB_SECRET, and CONVEX_SITE_URL are present.

Migration guardrails

When upgrading existing apps:

1. Snapshot current auth wiring before edits.
2. Update one surface at a time: config, auth module, then HTTP routes.
3. Keep old and new API mismatch notes in task output.
4. Verify sign in flow and callback routes before moving on.
5. Keep migrations minimal and focused to auth wiring only.

Self hosting decision point

Use get-convex/self-hosting only when:

• user asks for self hosted static assets, or
• auth portal hosting requires it in the selected upstream version.

When needed, follow the latest upstream integration docs:

• https://github.com/get-convex/self-hosting
• https://raw.githubusercontent.com/get-convex/self-hosting/main/INTEGRATION.md

Output requirements for any task using this skill

Before finishing, always report:

1. Retrieval timestamp for upstream docs.
2. Which branch was used as source of truth and why.
3. Install path selected, npm or GitHub pin, and why.
4. Exact files changed.
5. Exact commands the user should run next.

Never claim completion without these five items.

Source links

• https://auth.estifanos.com/getting-started/installation/ (official docs)
• https://auth.estifanos.com/getting-started/providers/
• https://auth.estifanos.com/guides/multi-access/
• https://auth.estifanos.com/guides/authorization/
• https://auth.estifanos.com/api/user/
• https://auth.estifanos.com/reference/config/
• https://auth.estifanos.com/sso/overview/
• https://github.com/robelest/convex-auth
• https://github.com/robelest/convex-auth/tree/release
• https://raw.githubusercontent.com/robelest/convex-auth/main/README.md
• https://raw.githubusercontent.com/robelest/convex-auth/release/README.md
• https://github.com/get-convex/self-hosting
• https://raw.githubusercontent.com/get-convex/self-hosting/main/INTEGRATION.md
• https://agentskills.io/home