diff --git a/test/memory-ingest.test.mjs b/test/memory-ingest.test.mjs
new file mode 100644
index 0000000..50c71d4
--- /dev/null
+++ b/test/memory-ingest.test.mjs
@@ -0,0 +1,253 @@
+import { test } from 'node:test';
+import assert from 'node:assert/strict';
+import { ingestEvents, getRelevantMemories } from '../src/services/memory/index.js';
+
+// Mock repository helpers
+function createMockRepository() {
+  const store = new Map();
+  const fingerprints = new Set();
+  const embeddings = new Map();
+  let failNextInsert = false;
+
+  return {
+    _store: store,
+    _fingerprints: fingerprints,
+    _embeddings: embeddings,
+    setFailNextInsert(fail) { failNextInsert = fail; },
+
+    async insertMemory(memory) {
+      if (failNextInsert) {
+        throw new Error('Simulated insert failure');
+      }
+      store.set(memory.id, memory);
+      return memory;
+    },
+    async hasIngestionFingerprint(key) {
+      return fingerprints.has(key);
+    },
+    async storeIngestionFingerprint(key, payload) {
+      fingerprints.add(key);
+    },
+    async linkEmbedding(id, embedding) {
+      embeddings.set(id, embedding);
+    },
+    async listMemories() {
+      return [...store.values()];
+    },
+    async updateMemoryUsage(id) {
+      // no-op for this test
+    },
+    async setPinned(id, pinned) {
+      const memory = store.get(id);
+      if (memory) {
+        memory.pinned = pinned;
+        store.set(id, memory);
+      }
+      return memory;
+    }
+  };
+}
+
+// Mock telemetry collector
+function createTelemetryCollector() {
+  const events = [];
+  return {
+    events,
+    emit: (event, payload) => events.push({ event, payload }),
+    find: (eventName) => events.find(e => e.event === eventName),
+    filter: (eventName) => events.filter(e => e.event === eventName),
+    clear: () => { events.length = 0; }
+  };
+}
+
+// Mock metrics collector
+function createMetricsCollector() {
+  const metrics = [];
+  return {
+    metrics,
+    emit: (metric, payload) => metrics.push({ metric, payload }),
+    find: (metricName) => metrics.find(m => m.metric === metricName),
+    clear: () => { metrics.length = 0; }
+  };
+}
+
+test('ingestEvents: Happy path ingestion', async () => {
+  const repository = createMockRepository();
+  const telemetry = createTelemetryCollector();
+  const metrics = createMetricsCollector();
+
+  const events = [
+    {
+      agent_id: 'test-agent',
+      content: 'This is a test event for ingestion.',
+      timestamp: Date.now(),
+      tags: ['test'],
+      metadata: { session_id: 'session-1' }
+    }
+  ];
+
+  const options = {
+    repository,
+    emitTelemetry: telemetry.emit,
+    metrics: { emit: metrics.emit },
+    embedText: async () => [0.1, 0.2, 0.3], // Mock embedding
+    agent_id: 'test-agent',
+    env: { TORCH_MEMORY_INGEST_ENABLED: 'true' }
+  };
+
+  const records = await ingestEvents(events, options);
+
+  // Assertions
+  assert.ok(Array.isArray(records), 'Should return an array of records');
+  assert.equal(records.length, 1, 'Should return 1 record');
+  assert.ok(records[0].id, 'Record should have an ID');
+  assert.equal(records[0].content, events[0].content, 'Content should match');
+
+  // Verify repository
+  assert.ok(repository._store.has(records[0].id), 'Record should be stored in repository');
+
+  // Verify telemetry
+  const ingestedEvent = telemetry.find('memory:ingested');
+  assert.ok(ingestedEvent, 'Should emit memory:ingested telemetry');
+  assert.equal(ingestedEvent.payload.agent_id, 'test-agent');
+
+  // Verify metrics
+  const ingestedMetric = metrics.find('memory_ingested_total');
+  assert.ok(ingestedMetric, 'Should emit memory_ingested_total metric');
+  assert.equal(ingestedMetric.payload.count, 1);
+});
+
+test('ingestEvents: Skips ingestion when disabled via feature flag', async () => {
+  const repository = createMockRepository();
+  const telemetry = createTelemetryCollector();
+
+  const events = [
+    {
+      agent_id: 'test-agent',
+      content: 'Should be skipped',
+      timestamp: Date.now()
+    }
+  ];
+
+  const options = {
+    repository,
+    emitTelemetry: telemetry.emit,
+    agent_id: 'test-agent',
+    env: { TORCH_MEMORY_INGEST_ENABLED: 'false' }
+  };
+
+  const records = await ingestEvents(events, options);
+
+  assert.deepEqual(records, [], 'Should return empty array');
+  assert.equal(repository._store.size, 0, 'Should not store anything');
+
+  const skippedEvent = telemetry.find('memory:ingest_skipped');
+  assert.ok(skippedEvent, 'Should emit memory:ingest_skipped');
+  assert.equal(skippedEvent.payload.reason, 'flag_disabled');
+});
+
+test('ingestEvents: Clears cache after ingestion', async () => {
+  const repository = createMockRepository();
+  const telemetry = createTelemetryCollector();
+  const agentId = 'cache-test-agent';
+
+  // Pre-populate repository
+  const existingMemory = {
+    id: 'mem-1',
+    agent_id: agentId,
+    content: 'Existing memory',
+    tags: ['test'],
+    last_seen: Date.now(),
+    type: 'event'
+  };
+  await repository.insertMemory(existingMemory);
+
+  // 1. Populate cache
+  await getRelevantMemories({ agent_id: agentId, repository, emitTelemetry: telemetry.emit });
+  let retrieved = telemetry.filter('memory:retrieved');
+  assert.equal(retrieved[0].payload.cache_hit, false, 'First retrieval should be a cache miss');
+  telemetry.clear();
+
+  // 2. Verify cache hit
+  await getRelevantMemories({ agent_id: agentId, repository, emitTelemetry: telemetry.emit });
+  retrieved = telemetry.filter('memory:retrieved');
+  assert.equal(retrieved[0].payload.cache_hit, true, 'Second retrieval should be a cache hit');
+  telemetry.clear();
+
+  // 3. Ingest new event (should trigger cache clear)
+  const events = [
+    {
+      agent_id: agentId,
+      content: 'New memory triggers cache clear',
+      timestamp: Date.now()
+    }
+  ];
+
+  await ingestEvents(events, {
+    repository,
+    emitTelemetry: telemetry.emit,
+    embedText: async () => [0.1],
+    agent_id: agentId,
+    env: { TORCH_MEMORY_INGEST_ENABLED: 'true' }
+  });
+
+  // 4. Verify cache miss
+  telemetry.clear(); // Clear ingestion telemetry
+  await getRelevantMemories({ agent_id: agentId, repository, emitTelemetry: telemetry.emit });
+  retrieved = telemetry.filter('memory:retrieved');
+  assert.equal(retrieved[0].payload.cache_hit, false, 'Retrieval after ingestion should be a cache miss');
+});
+
+test('ingestEvents: Deduplicates identical events within window', async () => {
+  const repository = createMockRepository();
+  const agentId = 'dedupe-agent';
+  const event = {
+    agent_id: agentId,
+    content: 'Duplicate content',
+    timestamp: 1000,
+    tags: ['test']
+  };
+
+  const options = {
+    repository,
+    embedText: async () => [0.1],
+    agent_id: agentId,
+    env: { TORCH_MEMORY_INGEST_ENABLED: 'true' },
+    windowBucketMs: 60000, // Fixed window
+    now: 2000 // Fixed time
+  };
+
+  // First ingestion
+  const records1 = await ingestEvents([event], options);
+  assert.equal(records1.length, 1, 'First ingestion should succeed');
+
+  // Second ingestion (same event, same window/bucket)
+  const records2 = await ingestEvents([event], options);
+  assert.equal(records2.length, 0, 'Second ingestion should be deduplicated (skipped)');
+});
+
+test('ingestEvents: Handles repository errors', async () => {
+  const repository = createMockRepository();
+  repository.setFailNextInsert(true);
+
+  const events = [
+    {
+      agent_id: 'error-agent',
+      content: 'Will fail',
+      timestamp: Date.now()
+    }
+  ];
+
+  const options = {
+    repository,
+    embedText: async () => [0.1],
+    agent_id: 'error-agent',
+    env: { TORCH_MEMORY_INGEST_ENABLED: 'true' }
+  };
+
+  await assert.rejects(
+    async () => ingestEvents(events, options),
+    /Simulated insert failure/,
+    'Should propagate repository errors'
+  );
+});