improvement(oauth): centralize scopes and remove dead scope evaluation code

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: waleedlatif1

.claude/commands/add-block.md

@@ -20,6 +20,7 @@ When the user asks you to create a block:
 import { {ServiceName}Icon } from '@/components/icons'
 import type { BlockConfig } from '@/blocks/types'
 import { AuthMode } from '@/blocks/types'
+import { getScopesForService } from '@/lib/oauth/utils'
 
 export const {ServiceName}Block: BlockConfig = {
   type: '{service}',                    // snake_case identifier
@@ -115,12 +116,17 @@ export const {ServiceName}Block: BlockConfig = {
   id: 'credential',
   title: 'Account',
   type: 'oauth-input',
-  serviceId: '{service}',  // Must match OAuth provider
+  serviceId: '{service}',  // Must match OAuth provider service key
+  requiredScopes: getScopesForService('{service}'),  // Import from @/lib/oauth/utils
   placeholder: 'Select account',
   required: true,
 }
 ```
 
+**Scopes:** Always use `getScopesForService(serviceId)` from `@/lib/oauth/utils` for `requiredScopes`. Never hardcode scope arrays — the single source of truth is `OAUTH_PROVIDERS` in `lib/oauth/oauth.ts`.
+
+**Scope descriptions:** When adding a new OAuth provider, also add human-readable descriptions for all scopes in `lib/oauth/scope-descriptions.ts`.
+
 ### Selectors (with dynamic options)
 ```typescript
 // Channel selector (Slack, Discord, etc.)
@@ -624,6 +630,7 @@ export const registry: Record<string, BlockConfig> = {
 import { ServiceIcon } from '@/components/icons'
 import type { BlockConfig } from '@/blocks/types'
 import { AuthMode } from '@/blocks/types'
+import { getScopesForService } from '@/lib/oauth/utils'
 
 export const ServiceBlock: BlockConfig = {
   type: 'service',
@@ -654,6 +661,7 @@ export const ServiceBlock: BlockConfig = {
       title: 'Service Account',
       type: 'oauth-input',
       serviceId: 'service',
+      requiredScopes: getScopesForService('service'),
       placeholder: 'Select account',
       required: true,
     },
@@ -792,7 +800,8 @@ All tool IDs referenced in `tools.access` and returned by `tools.config.tool` MU
 - [ ] Conditions use correct syntax (field, value, not, and)
 - [ ] DependsOn set for fields that need other values
 - [ ] Required fields marked correctly (boolean or condition)
-- [ ] OAuth inputs have correct `serviceId`
+- [ ] OAuth inputs have correct `serviceId` and `requiredScopes: getScopesForService(serviceId)`
+- [ ] Scope descriptions added to `lib/oauth/scope-descriptions.ts` for any new scopes
 - [ ] Tools.access lists all tool IDs (snake_case)
 - [ ] Tools.config.tool returns correct tool ID (snake_case)
 - [ ] Outputs match tool outputs

.claude/commands/add-integration.md

@@ -114,6 +114,7 @@ export const {service}{Action}Tool: ToolConfig<Params, Response> = {
 import { {Service}Icon } from '@/components/icons'
 import type { BlockConfig } from '@/blocks/types'
 import { AuthMode } from '@/blocks/types'
+import { getScopesForService } from '@/lib/oauth/utils'
 
 export const {Service}Block: BlockConfig = {
   type: '{service}',
@@ -144,6 +145,7 @@ export const {Service}Block: BlockConfig = {
       title: '{Service} Account',
       type: 'oauth-input',
       serviceId: '{service}',
+      requiredScopes: getScopesForService('{service}'),
       required: true,
     },
     // Conditional fields per operation
@@ -409,7 +411,7 @@ If creating V2 versions (API-aligned outputs):
 ### Block
 - [ ] Created `blocks/blocks/{service}.ts`
 - [ ] Defined operation dropdown with all operations
-- [ ] Added credential field (oauth-input or short-input)
+- [ ] Added credential field with `requiredScopes: getScopesForService('{service}')`
 - [ ] Added conditional fields per operation
 - [ ] Set up dependsOn for cascading selectors
 - [ ] Configured tools.access with all tool IDs
@@ -419,6 +421,12 @@ If creating V2 versions (API-aligned outputs):
 - [ ] If triggers: set `triggers.enabled` and `triggers.available`
 - [ ] If triggers: spread trigger subBlocks with `getTrigger()`
 
+### OAuth Scopes (if OAuth service)
+- [ ] Defined scopes in `lib/oauth/oauth.ts` under `OAUTH_PROVIDERS`
+- [ ] Added scope descriptions in `lib/oauth/scope-descriptions.ts`
+- [ ] Used `getCanonicalScopesForProvider()` in `auth.ts` (never hardcode)
+- [ ] Used `getScopesForService()` in block `requiredScopes` (never hardcode)
+
 ### Icon
 - [ ] Asked user to provide SVG
 - [ ] Added icon to `components/icons.tsx`
@@ -717,6 +725,25 @@ Use `wandConfig` for fields that are hard to fill out manually:
 }
 ```
 
+### OAuth Scopes (Centralized System)
+
+Scopes are maintained in a single source of truth and reused everywhere:
+
+1. **Define scopes** in `lib/oauth/oauth.ts` under `OAUTH_PROVIDERS[provider].services[service].scopes`
+2. **Add descriptions** in `lib/oauth/scope-descriptions.ts` for the OAuth modal UI
+3. **Reference in auth.ts** using `getCanonicalScopesForProvider(providerId)` from `@/lib/oauth/utils`
+4. **Reference in blocks** using `getScopesForService(serviceId)` from `@/lib/oauth/utils`
+
+**Never hardcode scope arrays** in `auth.ts` or block `requiredScopes`. Always import from the centralized source.
+
+```typescript
+// In auth.ts (Better Auth config)
+scopes: getCanonicalScopesForProvider('{service}'),
+
+// In block credential sub-block
+requiredScopes: getScopesForService('{service}'),
+```
+
 ### Common Gotchas
 
 1. **OAuth serviceId must match** - The `serviceId` in oauth-input must match the OAuth provider configuration
@@ -729,3 +756,5 @@ Use `wandConfig` for fields that are hard to fill out manually:
 8. **Always handle legacy file params** - Keep hidden `fileContent` params for backwards compatibility
 9. **Optional fields use advanced mode** - Set `mode: 'advanced'` on rarely-used optional fields
 10. **Complex inputs need wandConfig** - Timestamps, JSON arrays, and other hard-to-type values should have `wandConfig` enabled
+11. **Never hardcode scopes** - Use `getScopesForService()` in blocks and `getCanonicalScopesForProvider()` in auth.ts
+12. **Always add scope descriptions** - New scopes must have entries in `lib/oauth/scope-descriptions.ts`

.claude/commands/validate-integration.md

@@ -26,8 +26,9 @@ apps/sim/blocks/blocks/{service}.ts # Block definition
 apps/sim/tools/registry.ts          # Tool registry entries for this service
 apps/sim/blocks/registry.ts         # Block registry entry for this service
 apps/sim/components/icons.tsx        # Icon definition
-apps/sim/lib/auth/auth.ts           # OAuth scopes (if OAuth service)
-apps/sim/lib/oauth/oauth.ts         # OAuth provider config (if OAuth service)
+apps/sim/lib/auth/auth.ts           # OAuth config — should use getCanonicalScopesForProvider()
+apps/sim/lib/oauth/oauth.ts         # OAuth provider config — single source of truth for scopes
+apps/sim/lib/oauth/scope-descriptions.ts  # Human-readable scope descriptions for modal UI
 ```
 
 ## Step 2: Pull API Documentation
@@ -199,11 +200,14 @@ For **each tool** in `tools.access`:
 
 ## Step 5: Validate OAuth Scopes (if OAuth service)
 
-- [ ] `auth.ts` scopes include ALL scopes needed by ALL tools in the integration
-- [ ] `oauth.ts` provider config scopes match `auth.ts` scopes
-- [ ] Block `requiredScopes` (if defined) matches `auth.ts` scopes
+Scopes are centralized — the single source of truth is `OAUTH_PROVIDERS` in `lib/oauth/oauth.ts`.
+
+- [ ] Scopes defined in `lib/oauth/oauth.ts` under `OAUTH_PROVIDERS[provider].services[service].scopes`
+- [ ] `auth.ts` uses `getCanonicalScopesForProvider(providerId)` — NOT a hardcoded array
+- [ ] Block `requiredScopes` uses `getScopesForService(serviceId)` — NOT a hardcoded array
+- [ ] No hardcoded scope arrays in `auth.ts` or block files (should all use utility functions)
+- [ ] Each scope has a human-readable description in `lib/oauth/scope-descriptions.ts`
 - [ ] No excess scopes that aren't needed by any tool
-- [ ] Each scope has a human-readable description in `oauth-required-modal.tsx`'s `SCOPE_DESCRIPTIONS`
 
 ## Step 6: Validate Pagination Consistency
 
@@ -244,7 +248,8 @@ Group findings by severity:
 - Missing `.trim()` on ID fields in request URLs
 - Missing `?? null` on nullable response fields
 - Block condition array missing an operation that uses that field
-- Missing scope description in `oauth-required-modal.tsx`
+- Hardcoded scope arrays instead of using `getScopesForService()` / `getCanonicalScopesForProvider()`
+- Missing scope description in `lib/oauth/scope-descriptions.ts`
 
 **Suggestion** (minor improvements):
 - Better description text
@@ -273,7 +278,8 @@ After fixing, confirm:
 - [ ] Validated wandConfig on timestamps and complex inputs
 - [ ] Validated tools.config mapping, tool selector, and type coercions
 - [ ] Validated block outputs match what tools return, with typed JSON where possible
-- [ ] Validated OAuth scopes alignment across auth.ts, oauth.ts, block, and modal (if OAuth)
+- [ ] Validated OAuth scopes use centralized utilities (getScopesForService, getCanonicalScopesForProvider) — no hardcoded arrays
+- [ ] Validated scope descriptions exist in `lib/oauth/scope-descriptions.ts` for all scopes
 - [ ] Validated pagination consistency across tools and block
 - [ ] Validated error handling (error checks, meaningful messages)
 - [ ] Validated registry entries (tools and block, alphabetical, correct imports)

apps/sim/app/api/auth/oauth/connections/route.test.ts

@@ -6,40 +6,33 @@
 import { createMockRequest } from '@sim/testing'
 import { beforeEach, describe, expect, it, vi } from 'vitest'
 
-const {
-  mockGetSession,
-  mockDb,
-  mockLogger,
-  mockParseProvider,
-  mockEvaluateScopeCoverage,
-  mockJwtDecode,
-  mockEq,
-} = vi.hoisted(() => {
-  const db = {
-    select: vi.fn().mockReturnThis(),
-    from: vi.fn().mockReturnThis(),
-    where: vi.fn().mockReturnThis(),
-    limit: vi.fn(),
+const { mockGetSession, mockDb, mockLogger, mockParseProvider, mockJwtDecode, mockEq } = vi.hoisted(
+  () => {
+    const db = {
+      select: vi.fn().mockReturnThis(),
+      from: vi.fn().mockReturnThis(),
+      where: vi.fn().mockReturnThis(),
+      limit: vi.fn(),
+    }
+    const logger = {
+      info: vi.fn(),
+      warn: vi.fn(),
+      error: vi.fn(),
+      debug: vi.fn(),
+      trace: vi.fn(),
+      fatal: vi.fn(),
+      child: vi.fn(),
+    }
+    return {
+      mockGetSession: vi.fn(),
+      mockDb: db,
+      mockLogger: logger,
+      mockParseProvider: vi.fn(),
+      mockJwtDecode: vi.fn(),
+      mockEq: vi.fn((field: unknown, value: unknown) => ({ field, value, type: 'eq' })),
+    }
   }
-  const logger = {
-    info: vi.fn(),
-    warn: vi.fn(),
-    error: vi.fn(),
-    debug: vi.fn(),
-    trace: vi.fn(),
-    fatal: vi.fn(),
-    child: vi.fn(),
-  }
-  return {
-    mockGetSession: vi.fn(),
-    mockDb: db,
-    mockLogger: logger,
-    mockParseProvider: vi.fn(),
-    mockEvaluateScopeCoverage: vi.fn(),
-    mockJwtDecode: vi.fn(),
-    mockEq: vi.fn((field: unknown, value: unknown) => ({ field, value, type: 'eq' })),
-  }
-})
+)
 
 vi.mock('@/lib/auth', () => ({
   getSession: mockGetSession,
@@ -66,7 +59,6 @@ vi.mock('@sim/logger', () => ({
 
 vi.mock('@/lib/oauth/utils', () => ({
   parseProvider: mockParseProvider,
-  evaluateScopeCoverage: mockEvaluateScopeCoverage,
 }))
 
 import { GET } from '@/app/api/auth/oauth/connections/route'
@@ -83,16 +75,6 @@ describe('OAuth Connections API Route', () => {
       baseProvider: providerId.split('-')[0] || providerId,
       featureType: providerId.split('-')[1] || 'default',
     }))
-
-    mockEvaluateScopeCoverage.mockImplementation(
-      (_providerId: string, _grantedScopes: string[]) => ({
-        canonicalScopes: ['email', 'profile'],
-        grantedScopes: ['email', 'profile'],
-        missingScopes: [],
-        extraScopes: [],
-        requiresReauthorization: false,
-      })
-    )
   })
 
   it('should return connections successfully', async () => {

apps/sim/app/api/auth/oauth/connections/route.ts

@@ -6,7 +6,7 @@ import { type NextRequest, NextResponse } from 'next/server'
 import { getSession } from '@/lib/auth'
 import { generateRequestId } from '@/lib/core/utils/request'
 import type { OAuthProvider } from '@/lib/oauth'
-import { evaluateScopeCoverage, parseProvider } from '@/lib/oauth'
+import { parseProvider } from '@/lib/oauth'
 
 const logger = createLogger('OAuthConnectionsAPI')
 
@@ -49,8 +49,7 @@ export async function GET(request: NextRequest) {
 
     for (const acc of accounts) {
       const { baseProvider, featureType } = parseProvider(acc.providerId as OAuthProvider)
-      const grantedScopes = acc.scope ? acc.scope.split(/\s+/).filter(Boolean) : []
-      const scopeEvaluation = evaluateScopeCoverage(acc.providerId, grantedScopes)
+      const scopes = acc.scope ? acc.scope.split(/\s+/).filter(Boolean) : []
 
       if (baseProvider) {
         // Try multiple methods to get a user-friendly display name
@@ -96,10 +95,6 @@ export async function GET(request: NextRequest) {
         const accountSummary = {
           id: acc.id,
           name: displayName,
-          scopes: scopeEvaluation.grantedScopes,
-          missingScopes: scopeEvaluation.missingScopes,
-          extraScopes: scopeEvaluation.extraScopes,
-          requiresReauthorization: scopeEvaluation.requiresReauthorization,
         }
 
         if (existingConnection) {
@@ -108,20 +103,8 @@ export async function GET(request: NextRequest) {
           existingConnection.accounts.push(accountSummary)
 
           existingConnection.scopes = Array.from(
-            new Set([...(existingConnection.scopes || []), ...scopeEvaluation.grantedScopes])
+            new Set([...(existingConnection.scopes || []), ...scopes])
           )
-          existingConnection.missingScopes = Array.from(
-            new Set([...(existingConnection.missingScopes || []), ...scopeEvaluation.missingScopes])
-          )
-          existingConnection.extraScopes = Array.from(
-            new Set([...(existingConnection.extraScopes || []), ...scopeEvaluation.extraScopes])
-          )
-          existingConnection.canonicalScopes =
-            existingConnection.canonicalScopes && existingConnection.canonicalScopes.length > 0
-              ? existingConnection.canonicalScopes
-              : scopeEvaluation.canonicalScopes
-          existingConnection.requiresReauthorization =
-            existingConnection.requiresReauthorization || scopeEvaluation.requiresReauthorization
 
           const existingTimestamp = existingConnection.lastConnected
             ? new Date(existingConnection.lastConnected).getTime()
@@ -138,11 +121,7 @@ export async function GET(request: NextRequest) {
             baseProvider,
             featureType,
             isConnected: true,
-            scopes: scopeEvaluation.grantedScopes,
-            canonicalScopes: scopeEvaluation.canonicalScopes,
-            missingScopes: scopeEvaluation.missingScopes,
-            extraScopes: scopeEvaluation.extraScopes,
-            requiresReauthorization: scopeEvaluation.requiresReauthorization,
+            scopes,
             lastConnected: acc.updatedAt.toISOString(),
             accounts: [accountSummary],
           })

apps/sim/app/api/auth/oauth/credentials/route.test.ts

@@ -7,7 +7,7 @@
 import { NextRequest } from 'next/server'
 import { beforeEach, describe, expect, it, vi } from 'vitest'
 
-const { mockCheckSessionOrInternalAuth, mockEvaluateScopeCoverage, mockLogger } = vi.hoisted(() => {
+const { mockCheckSessionOrInternalAuth, mockLogger } = vi.hoisted(() => {
   const logger = {
     info: vi.fn(),
     warn: vi.fn(),
@@ -19,7 +19,6 @@ const { mockCheckSessionOrInternalAuth, mockEvaluateScopeCoverage, mockLogger }
   }
   return {
     mockCheckSessionOrInternalAuth: vi.fn(),
-    mockEvaluateScopeCoverage: vi.fn(),
     mockLogger: logger,
   }
 })
@@ -28,10 +27,6 @@ vi.mock('@/lib/auth/hybrid', () => ({
   checkSessionOrInternalAuth: mockCheckSessionOrInternalAuth,
 }))
 
-vi.mock('@/lib/oauth', () => ({
-  evaluateScopeCoverage: mockEvaluateScopeCoverage,
-}))
-
 vi.mock('@/lib/core/utils/request', () => ({
   generateRequestId: vi.fn().mockReturnValue('mock-request-id'),
 }))
@@ -87,16 +82,6 @@ describe('OAuth Credentials API Route', () => {
 
   beforeEach(() => {
     vi.clearAllMocks()
-
-    mockEvaluateScopeCoverage.mockImplementation(
-      (_providerId: string, grantedScopes: string[]) => ({
-        canonicalScopes: grantedScopes,
-        grantedScopes,
-        missingScopes: [],
-        extraScopes: [],
-        requiresReauthorization: false,
-      })
-    )
   })
 
   it('should handle unauthenticated user', async () => {