diff --git a/docs/use/memory.md b/docs/use/memory.md
index 32cddf955f..6fc47f4bcf 100644
--- a/docs/use/memory.md
+++ b/docs/use/memory.md
@@ -71,6 +71,9 @@ Use these through **`execute`**:
 - **`meta_memory_get`** — load one stored memory by id
 - **`meta_memory_search`** — browse/search stored memories directly
 
+Memory records can also include optional **`source_uris`** — opaque canonical
+document URLs such as GitHub files, R2 object URLs, or Notion pages.
+
 ## Categories
 
 Memory categories are freeform strings. Kody does not force a closed list.
diff --git a/packages/worker/migrations/0018-mcp-memory-source-uris.sql b/packages/worker/migrations/0018-mcp-memory-source-uris.sql
new file mode 100644
index 0000000000..99b14187b1
--- /dev/null
+++ b/packages/worker/migrations/0018-mcp-memory-source-uris.sql
@@ -0,0 +1,2 @@
+ALTER TABLE mcp_memories
+ADD COLUMN source_uris_json TEXT NOT NULL DEFAULT '[]';
diff --git a/packages/worker/src/mcp/capabilities/meta/meta-memory-delete.ts b/packages/worker/src/mcp/capabilities/meta/meta-memory-delete.ts
index 82ec1a3d98..921f914a68 100644
--- a/packages/worker/src/mcp/capabilities/meta/meta-memory-delete.ts
+++ b/packages/worker/src/mcp/capabilities/meta/meta-memory-delete.ts
@@ -100,6 +100,7 @@ function formatMemoryRecord(
 		summary: memory.summary,
 		details: memory.details,
 		tags: memory.tags,
+		source_uris: memory.sourceUris,
 		dedupe_key: memory.dedupeKey,
 		created_at: memory.createdAt,
 		updated_at: memory.updatedAt,
diff --git a/packages/worker/src/mcp/capabilities/meta/meta-memory-get.ts b/packages/worker/src/mcp/capabilities/meta/meta-memory-get.ts
index 9ca5534ba4..9ff5786a8c 100644
--- a/packages/worker/src/mcp/capabilities/meta/meta-memory-get.ts
+++ b/packages/worker/src/mcp/capabilities/meta/meta-memory-get.ts
@@ -35,6 +35,7 @@ export const metaMemoryGetCapability = defineDomainCapability(
 						summary: memory.summary,
 						details: memory.details,
 						tags: memory.tags,
+						source_uris: memory.sourceUris,
 						dedupe_key: memory.dedupeKey,
 						created_at: memory.createdAt,
 						updated_at: memory.updatedAt,
diff --git a/packages/worker/src/mcp/capabilities/meta/meta-memory-search.ts b/packages/worker/src/mcp/capabilities/meta/meta-memory-search.ts
index 09411f23d0..dead6f2c67 100644
--- a/packages/worker/src/mcp/capabilities/meta/meta-memory-search.ts
+++ b/packages/worker/src/mcp/capabilities/meta/meta-memory-search.ts
@@ -64,6 +64,7 @@ export const metaMemorySearchCapability = defineDomainCapability(
 					summary: match.summary,
 					details: match.details,
 					tags: match.tags,
+					source_uris: match.sourceUris,
 					dedupe_key: match.dedupeKey,
 					created_at: match.createdAt,
 					updated_at: match.updatedAt,
diff --git a/packages/worker/src/mcp/capabilities/meta/meta-memory-shared.ts b/packages/worker/src/mcp/capabilities/meta/meta-memory-shared.ts
index 7e3a1db3ed..8b0ffe5847 100644
--- a/packages/worker/src/mcp/capabilities/meta/meta-memory-shared.ts
+++ b/packages/worker/src/mcp/capabilities/meta/meta-memory-shared.ts
@@ -11,7 +11,11 @@ export const memoryCategoryField = z
 		'Optional freeform category label for the memory. Suggested examples: preference, identifier, relationship, workflow, project, profile.',
 	)
 
+const maxSourceUriLength = 2_048
+const maxSourceUriCount = 12
+
 export const memoryTagInputSchema = z.string().min(1).max(80)
+export const memorySourceUriSchema = z.string().url().max(maxSourceUriLength)
 
 export const memoryTagsField = z
 	.array(memoryTagInputSchema)
@@ -19,6 +23,14 @@ export const memoryTagsField = z
 	.optional()
 	.describe('Optional short tags for retrieval and filtering.')
 
+export const memorySourceUrisField = z
+	.array(memorySourceUriSchema)
+	.max(maxSourceUriCount)
+	.optional()
+	.describe(
+		'Optional canonical source document URLs for the memory. Treat these as opaque references.',
+	)
+
 export const memoryBaseInputSchema = {
 	subject: z
 		.string()
@@ -37,6 +49,7 @@ export const memoryBaseInputSchema = {
 		.describe('Optional supporting details for the durable memory record.'),
 	category: memoryCategoryField,
 	tags: memoryTagsField,
+	source_uris: memorySourceUrisField,
 	dedupe_key: z
 		.string()
 		.min(1)
@@ -81,6 +94,7 @@ export const memoryRecordSchema = z.object({
 	summary: z.string(),
 	details: z.string(),
 	tags: z.array(z.string()),
+	source_uris: z.array(memorySourceUriSchema).optional(),
 	dedupe_key: z.string().nullable(),
 	created_at: z.string(),
 	updated_at: z.string(),
diff --git a/packages/worker/src/mcp/capabilities/meta/meta-memory-upsert.ts b/packages/worker/src/mcp/capabilities/meta/meta-memory-upsert.ts
index 96fc083990..ebc6b6948a 100644
--- a/packages/worker/src/mcp/capabilities/meta/meta-memory-upsert.ts
+++ b/packages/worker/src/mcp/capabilities/meta/meta-memory-upsert.ts
@@ -5,6 +5,7 @@ import { type CapabilityContext } from '#mcp/capabilities/types.ts'
 import { upsertMemory } from '#mcp/memory/service.ts'
 import {
 	memoryRecordSchema,
+	memorySourceUrisField,
 	memoryTagInputSchema,
 } from '#mcp/capabilities/meta/meta-memory-shared.ts'
 import { requireMcpUser } from './require-user.ts'
@@ -44,6 +45,7 @@ const inputSchema = z.object({
 		.max(12)
 		.optional()
 		.describe('Optional tags for retrieval and filtering.'),
+	source_uris: memorySourceUrisField,
 	dedupe_key: z
 		.string()
 		.max(160)
@@ -110,6 +112,7 @@ export const metaMemoryUpsertCapability = defineDomainCapability(
 				summary: args.summary,
 				details: args.details ?? '',
 				tags: args.tags ?? [],
+				sourceUris: args.source_uris ?? [],
 				dedupeKey: args.dedupe_key ?? null,
 				status: args.status ?? 'active',
 				verificationReference: args.verification_reference ?? null,
@@ -124,6 +127,7 @@ export const metaMemoryUpsertCapability = defineDomainCapability(
 					summary: result.memory.summary,
 					details: result.memory.details,
 					tags: result.memory.tags,
+					source_uris: result.memory.sourceUris,
 					dedupe_key: result.memory.dedupeKey,
 					created_at: result.memory.createdAt,
 					updated_at: result.memory.updatedAt,
diff --git a/packages/worker/src/mcp/capabilities/meta/meta-memory-verify.ts b/packages/worker/src/mcp/capabilities/meta/meta-memory-verify.ts
index 31a64dbaaf..6b17f00470 100644
--- a/packages/worker/src/mcp/capabilities/meta/meta-memory-verify.ts
+++ b/packages/worker/src/mcp/capabilities/meta/meta-memory-verify.ts
@@ -5,6 +5,7 @@ import { type CapabilityContext } from '#mcp/capabilities/types.ts'
 import { verifyMemoryCandidate } from '#mcp/memory/service.ts'
 import {
 	memoryRecordSchema,
+	memorySourceUriSchema,
 	memoryVerifyInputSchema,
 	requireMcpUser,
 } from './meta-memory-shared.ts'
@@ -21,6 +22,7 @@ const relatedMemorySchema = memoryRecordSchema
 		subject: true,
 		summary: true,
 		tags: true,
+		source_uris: true,
 		dedupe_key: true,
 	})
 	.extend({
@@ -34,6 +36,7 @@ const outputSchema = z.object({
 		details: z.string(),
 		category: z.string().nullable(),
 		tags: z.array(z.string()),
+		source_uris: z.array(memorySourceUriSchema).optional(),
 		dedupe_key: z.string().nullable(),
 	}),
 	related_memories: z.array(relatedMemorySchema),
@@ -65,6 +68,7 @@ export const metaMemoryVerifyCapability = defineDomainCapability(
 					summary: args.summary,
 					details: args.details ?? null,
 					tags: args.tags ?? null,
+					sourceUris: args.source_uris ?? null,
 					dedupeKey: args.dedupe_key ?? null,
 				},
 				limit: args.limit,
@@ -91,6 +95,7 @@ function formatMemoryMatch(
 		subject: string
 		summary: string
 		tags: Array<string>
+		sourceUris: Array<string>
 		dedupeKey: string | null
 	},
 	score: number,
@@ -102,6 +107,7 @@ function formatMemoryMatch(
 		subject: match.subject,
 		summary: match.summary,
 		tags: match.tags,
+		source_uris: match.sourceUris,
 		dedupe_key: match.dedupeKey,
 		score,
 	}
diff --git a/packages/worker/src/mcp/mcp-server.mcp-e2e.test.ts b/packages/worker/src/mcp/mcp-server.mcp-e2e.test.ts
index 4af3712647..69b1bac755 100644
--- a/packages/worker/src/mcp/mcp-server.mcp-e2e.test.ts
+++ b/packages/worker/src/mcp/mcp-server.mcp-e2e.test.ts
@@ -59,6 +59,10 @@ test('authenticated mcp client can list tools, execute codemode, and search memo
 					summary: 'Always use npm commands in this repository.',
 					category: 'preference',
 					tags: ['package-manager', 'repo-workflow'],
+					source_uris: [
+						'https://docs.npmjs.com/cli/v11/commands/npm-install',
+						'https://github.com/kentcdodds/kody/blob/main/AGENTS.md',
+					],
 					verified_by_agent: true,
 					verification_reference: 'verify-search-fallback-1',
 				})
@@ -66,9 +70,63 @@ test('authenticated mcp client can list tools, execute codemode, and search memo
 		},
 	})
 	const upsertStructured = (upsertResult as CallToolResult).structuredContent as
-		| { result?: { memory?: { id?: string } } }
+		| { result?: { memory?: { id?: string; source_uris?: Array<string> } } }
 		| undefined
 	expect(typeof upsertStructured?.result?.memory?.id).toBe('string')
+	expect(upsertStructured?.result?.memory?.source_uris).toEqual([
+		'https://docs.npmjs.com/cli/v11/commands/npm-install',
+		'https://github.com/kentcdodds/kody/blob/main/AGENTS.md',
+	])
+
+	const memoryId = upsertStructured?.result?.memory?.id
+	if (!memoryId) {
+		throw new Error('missing memoryId')
+	}
+
+	const getResult = await mcpClient.client.callTool({
+		name: 'execute',
+		arguments: {
+			code: `async () => {
+				return await codemode.meta_memory_get({
+					memory_id: ${JSON.stringify(memoryId)},
+				})
+			}`,
+		},
+	})
+	const getStructured = (getResult as CallToolResult).structuredContent as
+		| { result?: { source_uris?: Array<string> } }
+		| undefined
+	expect(getStructured?.result?.source_uris).toEqual([
+		'https://docs.npmjs.com/cli/v11/commands/npm-install',
+		'https://github.com/kentcdodds/kody/blob/main/AGENTS.md',
+	])
+
+	const memoryCapabilitySearchResult = await mcpClient.client.callTool({
+		name: 'execute',
+		arguments: {
+			code: `async () => {
+				return await codemode.meta_memory_search({
+					query: 'npm over pnpm',
+					limit: 3,
+				})
+			}`,
+		},
+	})
+	const memoryCapabilitySearchStructured = (
+		memoryCapabilitySearchResult as CallToolResult
+	).structuredContent as
+		| {
+				result?: {
+					matches?: Array<{ source_uris?: Array<string> }>
+				}
+		  }
+		| undefined
+	expect(
+		memoryCapabilitySearchStructured?.result?.matches?.[0]?.source_uris,
+	).toEqual([
+		'https://docs.npmjs.com/cli/v11/commands/npm-install',
+		'https://github.com/kentcdodds/kody/blob/main/AGENTS.md',
+	])
 
 	const query = 'npm over pnpm'
 	const memorySearchResult = await mcpClient.client.callTool({
diff --git a/packages/worker/src/mcp/memory/memory-search.ts b/packages/worker/src/mcp/memory/memory-search.ts
index 6059783319..953c624feb 100644
--- a/packages/worker/src/mcp/memory/memory-search.ts
+++ b/packages/worker/src/mcp/memory/memory-search.ts
@@ -107,6 +107,7 @@ export async function searchMemories(input: {
 				summary: row.summary,
 				details: row.details,
 				tags: parseTags(row.tags_json),
+				sourceUris: parseJsonStringArray(row.source_uris_json),
 				dedupeKey: row.dedupe_key,
 				createdAt: row.created_at,
 				updatedAt: row.updated_at,
@@ -122,6 +123,10 @@ export async function searchMemories(input: {
 }
 
 function parseTags(raw: string): Array<string> {
+	return parseJsonStringArray(raw)
+}
+
+function parseJsonStringArray(raw: string): Array<string> {
 	try {
 		const parsed = JSON.parse(raw) as unknown
 		if (!Array.isArray(parsed)) return []
diff --git a/packages/worker/src/mcp/memory/repo.ts b/packages/worker/src/mcp/memory/repo.ts
index 860ce2fb6d..97085feecd 100644
--- a/packages/worker/src/mcp/memory/repo.ts
+++ b/packages/worker/src/mcp/memory/repo.ts
@@ -13,6 +13,7 @@ function mapMemoryRow(row: Record<string, unknown>): McpMemoryRow {
 		summary: String(row['summary']),
 		details: String(row['details'] ?? ''),
 		tags_json: String(row['tags_json'] ?? '[]'),
+		source_uris_json: String(row['source_uris_json'] ?? '[]'),
 		dedupe_key: row['dedupe_key'] == null ? null : String(row['dedupe_key']),
 		created_at: String(row['created_at']),
 		updated_at: String(row['updated_at']),
@@ -47,8 +48,8 @@ export async function insertMemory(
 		.prepare(
 			`INSERT INTO mcp_memories (
 				id, user_id, category, status, subject, summary, details, tags_json,
-				dedupe_key, created_at, updated_at, last_accessed_at, deleted_at
-			) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`,
+				source_uris_json, dedupe_key, created_at, updated_at, last_accessed_at, deleted_at
+			) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`,
 		)
 		.bind(
 			row.id,
@@ -59,6 +60,7 @@ export async function insertMemory(
 			row.summary,
 			row.details,
 			row.tags_json,
+			row.source_uris_json,
 			row.dedupe_key,
 			row.created_at ?? now,
 			row.updated_at ?? now,
@@ -76,7 +78,7 @@ export async function getMemoryById(
 	const row = await db
 		.prepare(
 			`SELECT id, user_id, category, status, subject, summary, details, tags_json,
-				dedupe_key, created_at, updated_at, last_accessed_at, deleted_at
+				source_uris_json, dedupe_key, created_at, updated_at, last_accessed_at, deleted_at
 			FROM mcp_memories
 			WHERE user_id = ? AND id = ?
 			LIMIT 1`,
@@ -97,6 +99,7 @@ export async function updateMemory(
 		summary: string
 		details: string
 		tags_json: string
+		source_uris_json: string
 		dedupe_key: string | null
 		last_accessed_at: string | null
 		deleted_at: string | null
@@ -111,6 +114,7 @@ export async function updateMemory(
 				summary = ?,
 				details = ?,
 				tags_json = ?,
+				source_uris_json = ?,
 				dedupe_key = ?,
 				last_accessed_at = ?,
 				deleted_at = ?,
@@ -124,6 +128,7 @@ export async function updateMemory(
 			fields.summary,
 			fields.details,
 			fields.tags_json,
+			fields.source_uris_json,
 			fields.dedupe_key,
 			fields.last_accessed_at,
 			fields.deleted_at,
@@ -164,7 +169,7 @@ export async function listMemoriesByUserId(
 	const { results } = await db
 		.prepare(
 			`SELECT id, user_id, category, status, subject, summary, details, tags_json,
-				dedupe_key, created_at, updated_at, last_accessed_at, deleted_at
+				source_uris_json, dedupe_key, created_at, updated_at, last_accessed_at, deleted_at
 			FROM mcp_memories
 			WHERE user_id = ?
 				${statusClause}
@@ -182,7 +187,7 @@ export async function listAllMemories(input: {
 	const { results } = await input.db
 		.prepare(
 			`SELECT id, user_id, category, status, subject, summary, details, tags_json,
-				dedupe_key, created_at, updated_at, last_accessed_at, deleted_at
+				source_uris_json, dedupe_key, created_at, updated_at, last_accessed_at, deleted_at
 			FROM mcp_memories
 			ORDER BY updated_at DESC`,
 		)
diff --git a/packages/worker/src/mcp/memory/service.node.test.ts b/packages/worker/src/mcp/memory/service.node.test.ts
index af68604bee..f2831bad88 100644
--- a/packages/worker/src/mcp/memory/service.node.test.ts
+++ b/packages/worker/src/mcp/memory/service.node.test.ts
@@ -92,6 +92,7 @@ function createMemoryTestDb() {
 									summary,
 									details,
 									tagsJson,
+									sourceUrisJson,
 									dedupeKey,
 									createdAt,
 									updatedAt,
@@ -107,6 +108,7 @@ function createMemoryTestDb() {
 									summary: String(summary),
 									details: String(details ?? ''),
 									tags_json: String(tagsJson ?? '[]'),
+									source_uris_json: String(sourceUrisJson ?? '[]'),
 									dedupe_key: dedupeKey == null ? null : String(dedupeKey),
 									created_at: String(createdAt),
 									updated_at: String(updatedAt),
@@ -125,6 +127,7 @@ function createMemoryTestDb() {
 										summary,
 										details,
 										tagsJson,
+										sourceUrisJson,
 										dedupeKey,
 										lastAccessedAt,
 										deletedAt,
@@ -144,6 +147,7 @@ function createMemoryTestDb() {
 										summary: String(summary),
 										details: String(details ?? ''),
 										tags_json: String(tagsJson ?? '[]'),
+										source_uris_json: String(sourceUrisJson ?? '[]'),
 										dedupe_key: dedupeKey == null ? null : String(dedupeKey),
 										last_accessed_at:
 											lastAccessedAt == null ? null : String(lastAccessedAt),
@@ -252,11 +256,15 @@ test('memory service upserts, verifies, and soft deletes', async () => {
 		details: 'Applies to code editors and dashboards.',
 		category: 'preference',
 		tags: ['theme', 'dark-mode'],
+		sourceUris: ['https://docs.example.com/preferences/editor-theme'],
 		verificationReference: 'verify-1',
 	})
 
 	expect(created.mode).toBe('created')
 	expect(created.memory.subject).toBe('Preferred editor theme')
+	expect(created.memory.sourceUris).toEqual([
+		'https://docs.example.com/preferences/editor-theme',
+	])
 
 	const verify = await verifyMemoryCandidate({
 		env: runtimeEnv,
@@ -266,11 +274,18 @@ test('memory service upserts, verifies, and soft deletes', async () => {
 			summary: 'User likes dark mode in editing interfaces.',
 			category: 'preference',
 			tags: ['theme'],
+			sourceUris: ['https://docs.example.com/preferences/editor-theme'],
 		},
 	})
 
 	expect(verify.relatedMemories).toHaveLength(1)
 	expect(verify.relatedMemories[0]?.memory.id).toBe(created.memory.id)
+	expect(verify.candidate.source_uris).toEqual([
+		'https://docs.example.com/preferences/editor-theme',
+	])
+	expect(verify.relatedMemories[0]?.memory.sourceUris).toEqual([
+		'https://docs.example.com/preferences/editor-theme',
+	])
 
 	const updated = await upsertMemory({
 		env: runtimeEnv,
@@ -280,11 +295,19 @@ test('memory service upserts, verifies, and soft deletes', async () => {
 		summary: 'User prefers dark mode everywhere.',
 		category: 'preference',
 		tags: ['theme', 'dark-mode'],
+		sourceUris: [
+			'https://docs.example.com/preferences/editor-theme',
+			'https://github.com/kentcdodds/kody/blob/main/docs/use/memory.md',
+		],
 		verificationReference: 'verify-2',
 	})
 
 	expect(updated.mode).toBe('updated')
 	expect(updated.memory.summary).toBe('User prefers dark mode everywhere.')
+	expect(updated.memory.sourceUris).toEqual([
+		'https://docs.example.com/preferences/editor-theme',
+		'https://github.com/kentcdodds/kody/blob/main/docs/use/memory.md',
+	])
 
 	const deleted = await deleteMemory({
 		env: runtimeEnv,
@@ -301,6 +324,10 @@ test('memory service upserts, verifies, and soft deletes', async () => {
 		memoryId: created.memory.id,
 	})
 	expect(loaded?.status).toBe('deleted')
+	expect(loaded?.sourceUris).toEqual([
+		'https://docs.example.com/preferences/editor-theme',
+		'https://github.com/kentcdodds/kody/blob/main/docs/use/memory.md',
+	])
 })
 
 test('memory surfacing suppresses repeated memories per conversation', async () => {
@@ -346,3 +373,46 @@ test('memory surfacing suppresses repeated memories per conversation', async ()
 	expect(search.matches).toHaveLength(0)
 	expect(search.suppressedCount).toBeGreaterThanOrEqual(1)
 })
+
+test('memory service rejects invalid source uris and tolerates missing stored values', async () => {
+	const testDb = createMemoryTestDb()
+	const runtimeEnv = env(testDb.db)
+
+	await expect(
+		upsertMemory({
+			env: runtimeEnv,
+			userId: 'user-123',
+			subject: 'Invalid source URIs',
+			summary: 'This write should fail validation.',
+			sourceUris: ['not-a-url'],
+			verificationReference: 'verify-4',
+		}),
+	).rejects.toThrow('Memory source_uris entries must be valid URLs.')
+
+	testDb.memories.set(
+		'legacy-memory',
+		{
+			id: 'legacy-memory',
+			user_id: 'user-123',
+			category: 'profile',
+			status: 'active',
+			subject: 'Legacy memory',
+			summary: 'Stored before source URIs existed.',
+			details: '',
+			tags_json: '["legacy"]',
+			dedupe_key: null,
+			created_at: '2026-01-01T00:00:00.000Z',
+			updated_at: '2026-01-01T00:00:00.000Z',
+			last_accessed_at: null,
+			deleted_at: null,
+		} as unknown as McpMemoryRow,
+	)
+
+	const loaded = await getMemory({
+		env: { APP_DB: testDb.db },
+		userId: 'user-123',
+		memoryId: 'legacy-memory',
+	})
+
+	expect(loaded?.sourceUris).toEqual([])
+})
diff --git a/packages/worker/src/mcp/memory/service.ts b/packages/worker/src/mcp/memory/service.ts
index 4f8cba23a0..2cf789e972 100644
--- a/packages/worker/src/mcp/memory/service.ts
+++ b/packages/worker/src/mcp/memory/service.ts
@@ -26,6 +26,8 @@ const maxCategoryLength = 80
 const maxDedupeKeyLength = 160
 const maxTagLength = 80
 const maxTagCount = 16
+const maxSourceUriLength = 2_048
+const maxSourceUriCount = 12
 const defaultSuppressionTtlMs = 30 * 24 * 60 * 60 * 1_000
 
 function logMemoryVectorSyncError(input: {
@@ -61,6 +63,7 @@ type MemoryUpsertInput = MemoryOwnerContext & {
 	summary: string
 	details?: string | null
 	tags?: Array<string> | null
+	sourceUris?: Array<string> | null
 	dedupeKey?: string | null
 	status?: 'active' | 'archived'
 	verificationReference?: string | null
@@ -95,6 +98,7 @@ type MemoryVerifyInput = MemoryOwnerContext & {
 		details?: string | null
 		category?: string | null
 		tags?: Array<string> | null
+		sourceUris?: Array<string> | null
 		dedupeKey?: string | null
 	}
 	limit?: number
@@ -132,6 +136,7 @@ export async function upsertMemory(input: MemoryUpsertInput): Promise<{
 				summary: normalized.summary,
 				details: normalized.details,
 				tags_json: JSON.stringify(normalized.tags),
+				source_uris_json: JSON.stringify(normalized.sourceUris),
 				dedupe_key: normalized.dedupeKey,
 				updated_at: now,
 				deleted_at: null,
@@ -145,6 +150,7 @@ export async function upsertMemory(input: MemoryUpsertInput): Promise<{
 				summary: normalized.summary,
 				details: normalized.details,
 				tags_json: JSON.stringify(normalized.tags),
+				source_uris_json: JSON.stringify(normalized.sourceUris),
 				dedupe_key: normalized.dedupeKey,
 				created_at: now,
 				updated_at: now,
@@ -160,6 +166,7 @@ export async function upsertMemory(input: MemoryUpsertInput): Promise<{
 			summary: row.summary,
 			details: row.details,
 			tags_json: row.tags_json,
+			source_uris_json: row.source_uris_json,
 			dedupe_key: row.dedupe_key,
 			last_accessed_at: row.last_accessed_at,
 			deleted_at: row.deleted_at,
@@ -252,6 +259,7 @@ export async function deleteMemory(
 			summary: existing.summary,
 			details: existing.details,
 			tags_json: existing.tags_json,
+			source_uris_json: existing.source_uris_json,
 			dedupe_key: existing.dedupe_key,
 			last_accessed_at: existing.last_accessed_at,
 			deleted_at: now,
@@ -355,6 +363,7 @@ export async function verifyMemoryCandidate(input: MemoryVerifyInput): Promise<{
 		details: string
 		category: string | null
 		tags: Array<string>
+		source_uris: Array<string>
 		dedupe_key: string | null
 	}
 	relatedMemories: Array<{ memory: MemoryRecord; score: number }>
@@ -379,6 +388,7 @@ export async function verifyMemoryCandidate(input: MemoryVerifyInput): Promise<{
 			details: candidate.details,
 			category: candidate.category,
 			tags: candidate.tags,
+			source_uris: candidate.sourceUris,
 			dedupe_key: candidate.dedupeKey,
 		},
 		relatedMemories: result.matches.map((match) => ({
@@ -444,6 +454,7 @@ function normalizeMemoryPayload(input: {
 	summary: string
 	details?: string | null
 	tags?: Array<string> | null
+	sourceUris?: Array<string> | null
 	dedupeKey?: string | null
 }) {
 	const subject = normalizeRequiredString(
@@ -462,6 +473,7 @@ function normalizeMemoryPayload(input: {
 		summary,
 		details: normalizeOptionalString(input.details, maxDetailsLength) ?? '',
 		tags: normalizeTags(input.tags ?? []),
+		sourceUris: normalizeSourceUris(input.sourceUris ?? []),
 		dedupeKey: normalizeOptionalString(input.dedupeKey, maxDedupeKeyLength),
 	}
 }
@@ -518,6 +530,25 @@ function normalizeTags(tags: Array<string>) {
 	).slice(0, maxTagCount)
 }
 
+function normalizeSourceUris(sourceUris: Array<string>) {
+	return Array.from(
+		new Set(
+			sourceUris.map((sourceUri) => {
+				const normalized = sourceUri.trim()
+				if (!normalized || normalized.length > maxSourceUriLength) {
+					throw new Error('Memory source_uris entries must be valid URLs.')
+				}
+				try {
+					new URL(normalized)
+				} catch {
+					throw new Error('Memory source_uris entries must be valid URLs.')
+				}
+				return normalized
+			}),
+		),
+	).slice(0, maxSourceUriCount)
+}
+
 function normalizeLimit(value: number | undefined | null) {
 	if (!Number.isFinite(value)) return 5
 	return Math.max(1, Math.min(20, Math.trunc(value!)))
@@ -550,7 +581,7 @@ async function filterSuppressedMatches(input: {
 	}
 }
 
-function parseTags(raw: string) {
+function parseJsonStringArray(raw: string) {
 	try {
 		const parsed = JSON.parse(raw) as unknown
 		if (!Array.isArray(parsed)) return []
@@ -560,6 +591,14 @@ function parseTags(raw: string) {
 	}
 }
 
+function parseTags(raw: string) {
+	return parseJsonStringArray(raw)
+}
+
+function parseSourceUris(raw: string) {
+	return parseJsonStringArray(raw)
+}
+
 function mapSearchMatchToMemoryRecord(match: MemorySearchMatch): MemoryRecord {
 	return {
 		id: match.id,
@@ -569,6 +608,7 @@ function mapSearchMatchToMemoryRecord(match: MemorySearchMatch): MemoryRecord {
 		summary: match.summary,
 		details: match.details,
 		tags: match.tags,
+		sourceUris: match.sourceUris,
 		dedupeKey: match.dedupeKey,
 		createdAt: match.createdAt,
 		updatedAt: match.updatedAt,
@@ -586,6 +626,7 @@ function toMemoryRecord(row: McpMemoryRow): MemoryRecord {
 		summary: row.summary,
 		details: row.details,
 		tags: parseTags(row.tags_json),
+		sourceUris: parseSourceUris(row.source_uris_json),
 		dedupeKey: row.dedupe_key,
 		createdAt: row.created_at,
 		updatedAt: row.updated_at,
diff --git a/packages/worker/src/mcp/memory/types.ts b/packages/worker/src/mcp/memory/types.ts
index 641ceedb62..6f74ae995f 100644
--- a/packages/worker/src/mcp/memory/types.ts
+++ b/packages/worker/src/mcp/memory/types.ts
@@ -13,6 +13,7 @@ export type MemoryRow = {
 	summary: string
 	details: string
 	tags_json: string
+	source_uris_json: string
 	dedupe_key: string | null
 	created_at: string
 	updated_at: string
@@ -42,6 +43,7 @@ export type MemoryMetadata = {
 	summary: string
 	details: string
 	tags: Array<string>
+	sourceUris: Array<string>
 	dedupeKey: string | null
 	createdAt: string
 	updatedAt: string
diff --git a/packages/worker/src/mcp/tools/memory-tool-context.ts b/packages/worker/src/mcp/tools/memory-tool-context.ts
index 11431a64b5..da6b6f3711 100644
--- a/packages/worker/src/mcp/tools/memory-tool-context.ts
+++ b/packages/worker/src/mcp/tools/memory-tool-context.ts
@@ -12,6 +12,7 @@ export type MemoryToolSummary = {
 		summary: string
 		details: string
 		tags: Array<string>
+		sourceUris: Array<string>
 		updatedAt: string
 	}>
 	suppressedCount: number
@@ -148,6 +149,11 @@ function formatRelevantMemoriesMarkdown(memorySummary: MemoryToolSummary) {
 				`  - Tags: ${memory.tags.map((tag) => `\`${tag}\``).join(', ')}`,
 			)
 		}
+		if (memory.sourceUris.length > 0) {
+			lines.push(
+				`  - Sources: ${memory.sourceUris.map((sourceUri) => `\`${sourceUri}\``).join(', ')}`,
+			)
+		}
 		lines.push(`  - Updated: \`${memory.updatedAt}\``)
 	}
 	if (memorySummary.suppressedCount > 0) {
@@ -168,6 +174,7 @@ function toMemoryToolSummaryItem(memory: MemoryRecord) {
 		summary: memory.summary,
 		details: memory.details,
 		tags: memory.tags,
+		sourceUris: memory.sourceUris,
 		updatedAt: memory.updatedAt,
 	}
 }