diff --git a/docs/guides/oauth.md b/docs/guides/oauth.md
index e9491106f1..bb3f14ebf9 100644
--- a/docs/guides/oauth.md
+++ b/docs/guides/oauth.md
@@ -99,6 +99,12 @@ and the current client credentials.
 
 ## Integration naming convention
 
+Integration identity is the canonical provider key: names are normalized to
+lowercase kebab (letters, numbers, `.`, `_`, `-`) on every save and lookup, so
+`GitHub`, `github`, and `Git Hub` all resolve to the same `github` record. There
+is exactly one stored value per integration, keyed
+`_integration:<canonical-name>`.
+
 Prefer integration names like `<provider>-<purpose>` when multiple accounts may
 exist: `google` for a default account, `google-business` for a business account,
 or `google-youtube-brand` for a brand identity. Agents should call
diff --git a/packages/worker/client/routes/connect-oauth.node.test.ts b/packages/worker/client/routes/connect-oauth.node.test.ts
index 8b10da2caf..b128dd6f5e 100644
--- a/packages/worker/client/routes/connect-oauth.node.test.ts
+++ b/packages/worker/client/routes/connect-oauth.node.test.ts
@@ -2,7 +2,6 @@ import { expect, test } from 'vitest'
 import {
 	buildIntegrationValueName,
 	formatOAuthExchangeFailure,
-	getIntegrationValueCandidates,
 	isOAuthExchangeSessionExpired,
 	mergeConnectOauthConfig,
 	parseSessionConnectOauthConfig,
@@ -45,13 +44,12 @@ test('connect OAuth helpers parse stored integrations, merge reconnect configs,
 		requiredHosts: ['api.github.com', 'github.com'],
 		authorization: null,
 	})
-	expect(getIntegrationValueCandidates('GitHub', 'github')).toEqual([
-		buildIntegrationValueName('GitHub'),
-		buildIntegrationValueName('github'),
-	])
-	expect(getIntegrationValueCandidates('github', 'github')).toEqual([
-		buildIntegrationValueName('github'),
-	])
+	// One canonical value key regardless of how the caller cases the provider.
+	expect(buildIntegrationValueName('GitHub')).toBe('_integration:github')
+	expect(buildIntegrationValueName('github')).toBe('_integration:github')
+	expect(buildIntegrationValueName('Spotify Family')).toBe(
+		'_integration:spotify-family',
+	)
 
 	const githubConfig = mergeConnectOauthConfig({
 		queryConfig: {
diff --git a/packages/worker/client/routes/connect-oauth.tsx b/packages/worker/client/routes/connect-oauth.tsx
index f0f867b1a3..a3394ab6dd 100644
--- a/packages/worker/client/routes/connect-oauth.tsx
+++ b/packages/worker/client/routes/connect-oauth.tsx
@@ -436,24 +436,16 @@ export function ConnectOauthRoute(handle: Handle) {
 	const readExistingIntegrationConfig = async (
 		queryConfig: ConnectOauthQueryConfig,
 	) => {
-		for (const valueName of getIntegrationValueCandidates(
-			queryConfig.provider,
-			queryConfig.providerKey,
-		)) {
-			const raw = await readValue(valueName)
-			if (!raw) continue
-			const parsed = parseStoredIntegrationConfig(raw, queryConfig.provider)
-			if (parsed) {
-				return {
-					valueName,
-					integration: parsed,
-				}
-			}
-		}
-		return {
-			valueName: null,
-			integration: null,
-		}
+		// Integration identity is the canonical provider key, so a single
+		// deterministic lookup replaces the historical raw-name probe.
+		const valueName = buildIntegrationValueName(queryConfig.providerKey)
+		const raw = await readValue(valueName)
+		const parsed = raw
+			? parseStoredIntegrationConfig(raw, queryConfig.provider)
+			: null
+		return parsed
+			? { valueName, integration: parsed }
+			: { valueName: null, integration: null }
 	}
 
 	const initializeSetupState = async (nextConfig: ConnectOauthConfig) => {
@@ -1258,21 +1250,12 @@ function normalizeHosts(hosts: Array<string>) {
 	).sort()
 }
 
+/**
+ * Integration identity is the canonical provider key; mirrors
+ * buildIntegrationValueName in integration-shared.ts.
+ */
 export function buildIntegrationValueName(provider: string) {
-	return `_integration:${provider}`
-}
-
-export function getIntegrationValueCandidates(
-	provider: string,
-	providerKey: string,
-) {
-	return Array.from(
-		new Set(
-			[provider.trim(), providerKey.trim()]
-				.filter((value) => value.length > 0)
-				.map((value) => buildIntegrationValueName(value)),
-		),
-	)
+	return `_integration:${normalizeProviderKey(provider)}`
 }
 
 export function parseStoredIntegrationConfig(
diff --git a/packages/worker/src/app/handlers/account-secrets.node.test.ts b/packages/worker/src/app/handlers/account-secrets.node.test.ts
index 4304d2f7c3..d2621c9dd8 100644
--- a/packages/worker/src/app/handlers/account-secrets.node.test.ts
+++ b/packages/worker/src/app/handlers/account-secrets.node.test.ts
@@ -179,15 +179,15 @@ test('connect oauth saves tokens, integration metadata, and host approval links'
 					'https://example.com/account/secrets/user/githubRefreshToken?allowed-host=github.com',
 			},
 		],
-		integrationName: 'GitHub',
+		integrationName: 'github',
 	})
 	expect(mockModule.buildSecretHostApprovalUrl).toHaveBeenCalledTimes(4)
 	expect(mockModule.setSecretAllowedHosts).not.toHaveBeenCalled()
 	expect(mockModule.saveValue).toHaveBeenCalledWith(
 		expect.objectContaining({
-			name: '_integration:GitHub',
+			name: '_integration:github',
 			value: JSON.stringify({
-				name: 'GitHub',
+				name: 'github',
 				tokenUrl: 'https://github.com/login/oauth/access_token',
 				apiBaseUrl: 'https://api.github.com',
 				flow: 'pkce',
@@ -316,7 +316,7 @@ test('connect oauth saves tokens, integration metadata, and host approval links'
 		accessTokenSaved: true,
 		refreshTokenSaved: true,
 		hostApprovalLinks: [],
-		integrationName: 'Tesla',
+		integrationName: 'tesla',
 	})
 	expect(teslaPayload.allowedHosts).toEqual(
 		expect.arrayContaining([
diff --git a/packages/worker/src/mcp/capabilities/integrations/integration-save.node.test.ts b/packages/worker/src/mcp/capabilities/integrations/integration-save.node.test.ts
index 67ba5d3811..d74e46da99 100644
--- a/packages/worker/src/mcp/capabilities/integrations/integration-save.node.test.ts
+++ b/packages/worker/src/mcp/capabilities/integrations/integration-save.node.test.ts
@@ -2,9 +2,11 @@ import { expect, test } from 'vitest'
 import { createMcpCallerContext } from '#mcp/context.ts'
 import { integrationSaveCapability } from './integration-save.ts'
 import {
+	buildIntegrationValueName,
 	integrationConfigSchema,
 	mergeIntegrationConfig,
 	parseIntegrationConfig,
+	parseIntegrationValueName,
 } from './integration-shared.ts'
 
 function createValueTestDb() {
@@ -348,3 +350,80 @@ test('integration_save persists usePkce only when it differs from the flow defau
 		JSON.parse(defaultDb.entries.get('_integration:spotify') ?? '{}'),
 	).not.toHaveProperty('usePkce')
 })
+
+test('integration identity is the canonical provider key across save, lookup, and value-name parsing', async () => {
+	// Saving with display casing stores and returns the canonical name.
+	const casedDb = createValueTestDb()
+	const saved = await integrationSaveCapability.handler(
+		{
+			name: 'GitHub',
+			tokenUrl: 'https://github.com/login/oauth/access_token',
+			flow: 'confidential',
+			clientIdValueName: 'github-client-id',
+			clientSecretSecretName: 'githubClientSecret',
+			accessTokenSecretName: 'githubAccessToken',
+			requiredHosts: ['api.github.com'],
+		},
+		{
+			env: { APP_DB: casedDb.db } as unknown as Env,
+			callerContext: createMcpCallerContext({
+				baseUrl: 'https://heykody.dev',
+				user: { userId: 'user-123' },
+			}),
+		},
+	)
+	expect(saved.integration.name).toBe('github')
+	expect(casedDb.entries.has('_integration:github')).toBe(true)
+	expect(casedDb.entries.has('_integration:GitHub')).toBe(false)
+
+	// Every value-key derivation goes through the same canonicalization.
+	expect(buildIntegrationValueName('GitHub')).toBe('_integration:github')
+	expect(buildIntegrationValueName('Spotify Family')).toBe(
+		'_integration:spotify-family',
+	)
+
+	// Only canonical stored keys parse as integrations.
+	expect(parseIntegrationValueName('_integration:github')).toBe('github')
+	expect(parseIntegrationValueName('_integration:GitHub')).toBeNull()
+	expect(parseIntegrationValueName('_integration:')).toBeNull()
+	expect(parseIntegrationValueName('value:github')).toBeNull()
+
+	// Names without any letters or numbers are rejected outright — including
+	// ones made only of characters the canonical form preserves (. _ -).
+	await expect(
+		integrationSaveCapability.handler(
+			{
+				name: '._-',
+				tokenUrl: 'https://example.com/token',
+				flow: 'pkce',
+				clientIdValueName: 'x-client-id',
+				accessTokenSecretName: 'xAccessToken',
+			},
+			{
+				env: { APP_DB: createValueTestDb().db } as unknown as Env,
+				callerContext: createMcpCallerContext({
+					baseUrl: 'https://heykody.dev',
+					user: { userId: 'user-123' },
+				}),
+			},
+		),
+	).rejects.toThrow(/letters or numbers/i)
+	await expect(
+		integrationSaveCapability.handler(
+			{
+				name: '!!!',
+				tokenUrl: 'https://example.com/token',
+				flow: 'pkce',
+				clientIdValueName: 'x-client-id',
+				accessTokenSecretName: 'xAccessToken',
+			},
+			{
+				env: { APP_DB: createValueTestDb().db } as unknown as Env,
+				callerContext: createMcpCallerContext({
+					baseUrl: 'https://heykody.dev',
+					user: { userId: 'user-123' },
+				}),
+			},
+		),
+	).rejects.toThrow(/letters or numbers/i)
+})
diff --git a/packages/worker/src/mcp/capabilities/integrations/integration-save.ts b/packages/worker/src/mcp/capabilities/integrations/integration-save.ts
index 7af5f2ae0b..c81c98d6ce 100644
--- a/packages/worker/src/mcp/capabilities/integrations/integration-save.ts
+++ b/packages/worker/src/mcp/capabilities/integrations/integration-save.ts
@@ -25,7 +25,7 @@ export const integrationSaveCapability = defineDomainCapability(
 	{
 		name: 'integration_save',
 		description:
-			'Create or update an OAuth integration configuration for the signed-in user. Stored as a user-scoped value with a _integration: prefix.',
+			'Create or update an OAuth integration configuration for the signed-in user. Names are normalized to a canonical lowercase-kebab provider key and stored as a user-scoped value with a _integration: prefix.',
 		keywords: [
 			'integration',
 			'oauth',
diff --git a/packages/worker/src/mcp/capabilities/integrations/integration-shared.ts b/packages/worker/src/mcp/capabilities/integrations/integration-shared.ts
index 8cef370adc..a5eb3fc666 100644
--- a/packages/worker/src/mcp/capabilities/integrations/integration-shared.ts
+++ b/packages/worker/src/mcp/capabilities/integrations/integration-shared.ts
@@ -1,8 +1,26 @@
+import { normalizeProviderKey } from '@kody-internal/shared/url-hosts.ts'
 import { z } from 'zod'
 import { normalizeAllowedHosts } from '#mcp/secrets/allowed-hosts.ts'
 
 export const integrationFlowValues = ['pkce', 'confidential'] as const
 
+/**
+ * Integration identity is the canonical provider key (lowercase kebab via
+ * normalizeProviderKey). Every read and write path derives names and value
+ * keys through this one function, so lookups never depend on how a caller
+ * cased or spaced the provider name.
+ */
+export function canonicalIntegrationName(name: string) {
+	return normalizeProviderKey(name)
+}
+
+const integrationNameSchema = z
+	.string()
+	.min(1)
+	.refine((name) => /[a-z0-9]/.test(canonicalIntegrationName(name)), {
+		message: 'Integration name must contain letters or numbers.',
+	})
+
 const defaultIntegrationScopeSeparator = ' '
 
 export const tokenExchangeStyleValues = [
@@ -30,7 +48,7 @@ export const integrationAuthorizationSchema = z
 	.strict()
 
 export const integrationConfigSchema = z.object({
-	name: z.string().min(1),
+	name: integrationNameSchema,
 	tokenUrl: z.string().url(),
 	apiBaseUrl: z.string().url().optional().nullable(),
 	flow: z.enum(integrationFlowValues),
@@ -54,7 +72,7 @@ type IntegrationAuthorization = z.infer<typeof integrationAuthorizationSchema>
 
 export const integrationSaveSchema = z
 	.object({
-		name: z.string().min(1),
+		name: integrationNameSchema,
 		tokenUrl: z.string().url().optional(),
 		apiBaseUrl: z.string().url().nullable().optional(),
 		flow: z.enum(integrationFlowValues).optional(),
@@ -86,7 +104,7 @@ export function normalizeIntegrationConfig(
 			? value.usePkce
 			: null
 	return {
-		name: value.name.trim(),
+		name: canonicalIntegrationName(value.name),
 		tokenUrl: value.tokenUrl.trim(),
 		apiBaseUrl: value.apiBaseUrl?.trim() || null,
 		flow: value.flow,
@@ -142,13 +160,21 @@ export function mergeIntegrationConfig(
 const integrationValuePrefix = '_integration:'
 
 export function buildIntegrationValueName(name: string) {
-	return `${integrationValuePrefix}${name}`
+	return `${integrationValuePrefix}${canonicalIntegrationName(name)}`
 }
 
 export function parseIntegrationValueName(name: string) {
 	if (!name.startsWith(integrationValuePrefix)) return null
-	const integrationName = name.slice(integrationValuePrefix.length).trim()
-	return integrationName.length > 0 ? integrationName : null
+	const integrationName = name.slice(integrationValuePrefix.length)
+	// Only canonical keys count as integrations; a non-canonical suffix cannot
+	// have been written by any current write path.
+	if (
+		integrationName.length === 0 ||
+		integrationName !== canonicalIntegrationName(integrationName)
+	) {
+		return null
+	}
+	return integrationName
 }
 
 export function parseIntegrationConfig(