feat(memory): add operator retrieval plugin

packages/memory/src/adapters/keyword.test.ts

@@ -274,6 +274,20 @@ describe('KeywordAdapter', () => {
       expect(results).toHaveLength(1);
     });
 
+    it('should return all scoped insights for the explicit wildcard query', async () => {
+      await adapter.storeInsight({
+        userId: 'u1',
+        content: 'A literal * marker is still ordinary content',
+        source: 'chat',
+        category: 'technical',
+        relevanceScore: 0.7,
+      });
+
+      const results = await adapter.searchInsights('u1', '*');
+      expect(results).toHaveLength(4);
+      expect(results.every((result) => result.score === 1)).toBe(true);
+    });
+
     it('should return empty for empty query', async () => {
       const results = await adapter.searchInsights('u1', '   ');
       expect(results).toHaveLength(0);

packages/memory/src/adapters/keyword.ts

@@ -132,19 +132,23 @@ export class KeywordAdapter implements MemoryAdapter {
     opts?: { limit?: number; embedding?: number[] },
   ): Promise<InsightSearchResult[]> {
     const limit = opts?.limit ?? 10;
-    const words = query
-      .toLowerCase()
-      .split(/\s+/)
-      .filter((w) => w.length > 0);
+    const normalizedQuery = query.trim();
+    const matchAll = normalizedQuery === '*';
+    const words = matchAll
+      ? []
+      : normalizedQuery
+          .toLowerCase()
+          .split(/\s+/)
+          .filter((word) => word.length > 0);
 
-    if (words.length === 0) return [];
+    if (words.length === 0 && !matchAll) return [];
 
     const rows = await this.storage.find<InsightRecord>(INSIGHTS, { userId });
 
     const scored: InsightSearchResult[] = [];
     for (const row of rows) {
       const content = row.content.toLowerCase();
-      let score = 0;
+      let score = matchAll ? 1 : 0;
       for (const word of words) {
         if (content.includes(word)) score++;
       }

packages/memory/src/operator-memory-plugin.test.ts

@@ -55,6 +55,24 @@ describe('OperatorMemoryPlugin', () => {
     ]);
   });
 
+  it('rejects an incomplete runtime scope before it can produce a shared storage key', async () => {
+    const memory = adapter();
+    const plugin = createOperatorMemoryPlugin({
+      adapter: memory,
+      instanceId: 'Nova',
+      namespace: 'operator-memory',
+      redact: (value) => value,
+    });
+
+    await expect(
+      plugin.capture(
+        { tenantId: 'tenant-a', ownerId: 'owner-a', sessionId: ' ' },
+        { content: 'note', source: 'test', category: 'note' },
+      ),
+    ).rejects.toThrow('Operator memory session ID is required');
+    expect(memory.storeInsight).not.toHaveBeenCalled();
+  });
+
   it('uses a differently named configured instance in retrieval provenance', async () => {
     const memory = adapter();
     memory.searchInsights.mockResolvedValue([
@@ -76,6 +94,31 @@ describe('OperatorMemoryPlugin', () => {
     });
   });
 
+  it('orders startup context with project and flat-file truth before retrieved material', async () => {
+    const memory = adapter();
+    memory.searchInsights.mockResolvedValue([
+      { id: 'retrieval', content: 'retrieval', score: 1 },
+      { id: 'flat-file', content: 'flat-file', score: 1, metadata: { source: 'flat-file' } },
+      { id: 'project', content: 'project', score: 1, metadata: { source: 'project' } },
+    ]);
+    const plugin = createOperatorMemoryPlugin({
+      adapter: memory,
+      instanceId: 'Nova',
+      namespace: 'operator-memory',
+      maxStartupContext: 2,
+      redact: (value) => value,
+    });
+
+    const context = await plugin.startupContext({
+      tenantId: 'tenant-a',
+      ownerId: 'owner-a',
+      sessionId: 'session-a',
+    });
+
+    expect(context.map((result) => result.id)).toEqual(['project', 'flat-file']);
+    expect(memory.searchInsights).toHaveBeenCalledWith(expect.any(String), '*', { limit: 64 });
+  });
+
   it('redacts content before adapter persistence and records configured provenance metadata', async () => {
     const memory = adapter();
     const plugin = createOperatorMemoryPlugin({

packages/memory/src/operator-memory-plugin.ts

@@ -1,5 +1,7 @@
 import type { Insight, InsightSearchResult, MemoryAdapter } from './types.js';
 
+const STARTUP_CONTEXT_CANDIDATE_LIMIT = 64;
+
 /** Immutable server-derived boundary; callers never choose an adapter namespace. */
 export interface OperatorMemoryScope {
   readonly tenantId: string;
@@ -38,8 +40,44 @@ export interface OperatorMemoryPlugin {
 }
 
 function scopedUserId(scope: OperatorMemoryScope, namespace: string): string {
+  const normalizedScope = normalizeScope(scope);
   // JSON tuple encoding avoids delimiter collisions between independently scoped IDs.
-  return JSON.stringify([namespace, scope.tenantId, scope.ownerId, scope.sessionId]);
+  return JSON.stringify([
+    namespace,
+    normalizedScope.tenantId,
+    normalizedScope.ownerId,
+    normalizedScope.sessionId,
+  ]);
+}
+
+function normalizeScope(scope: OperatorMemoryScope): OperatorMemoryScope {
+  if (typeof scope !== 'object' || scope === null) {
+    throw new Error('Operator memory scope is required');
+  }
+  return Object.freeze({
+    tenantId: requiredScopeId(scope.tenantId, 'tenant ID'),
+    ownerId: requiredScopeId(scope.ownerId, 'owner ID'),
+    sessionId: requiredScopeId(scope.sessionId, 'session ID'),
+  });
+}
+
+function requiredScopeId(value: unknown, field: string): string {
+  if (typeof value !== 'string' || value.trim().length === 0) {
+    throw new Error(`Operator memory ${field} is required`);
+  }
+  return value.trim();
+}
+
+function compareStartupContext(left: OperatorMemoryResult, right: OperatorMemoryResult): number {
+  return (
+    startupSourcePriority(left.provenance.source) - startupSourcePriority(right.provenance.source)
+  );
+}
+
+function startupSourcePriority(source: string): number {
+  if (source === 'project') return 0;
+  if (source === 'flat-file') return 1;
+  return 2;
 }
 
 function normalizeConfig(config: OperatorMemoryConfig): OperatorMemoryConfig {
@@ -82,7 +120,7 @@ export function createOperatorMemoryPlugin(config: OperatorMemoryConfig): Operat
     ).map(mapResult);
   return {
     async capture(scope, input) {
-      return config.adapter.storeInsight({
+      return pluginConfig.adapter.storeInsight({
         userId: scopedUserId(scope, pluginConfig.namespace),
         content: pluginConfig.redact(input.content),
         source: input.source,
@@ -106,7 +144,11 @@ export function createOperatorMemoryPlugin(config: OperatorMemoryConfig): Operat
       };
     },
     async startupContext(scope) {
-      return search(scope, '*', pluginConfig.maxStartupContext);
+      const maxStartupContext = pluginConfig.maxStartupContext ?? 8;
+      // Prioritize authoritative sources within a bounded candidate window.
+      const candidateLimit = Math.max(maxStartupContext, STARTUP_CONTEXT_CANDIDATE_LIMIT);
+      const context = await search(scope, '*', candidateLimit);
+      return [...context].sort(compareStartupContext).slice(0, maxStartupContext);
     },
   };
 }

packages/memory/src/types.ts

@@ -49,6 +49,10 @@ export interface MemoryAdapter {
   // Insights
   storeInsight(insight: NewInsight): Promise<Insight>;
   getInsight(id: string): Promise<Insight | null>;
+  /**
+   * Searches within one scoped user ID. The reserved `*` query returns scoped
+   * recent/all results rather than performing backend-specific wildcard parsing.
+   */
   searchInsights(
     userId: string,
     query: string,