fix: tune automatic recall defaults

Author: Killusions

README.md

@@ -77,8 +77,8 @@ Settings can be added to the plugin entry in `opencode.json`. Every setting show
       "meem-ai",
       {
         "storagePath": "/path/to/memory.lancedb",
-        "autoRecallLimit": 4,
-        "autoPreviousUserMessageLimit": 5,
+        "autoRecallLimit": 2,
+        "autoPreviousUserMessageLimit": 0,
         "searchRecallLimit": 8,
         "shortTermRetentionDays": 30,
         "longTermRetentionDays": 365,
@@ -116,10 +116,10 @@ Recall gates and tier promotion are configurable too. The defaults are balanced
 ```json
 {
   "searchSimilarityThreshold": 0.42,
-  "autoLifetimeSimilarityThreshold": 0.6,
-  "autoLongSimilarityThreshold": 0.7,
-  "autoShortSimilarityThreshold": 0.8,
-  "tierSimilarityBoost": 0,
+  "autoLifetimeSimilarityThreshold": 0.8275,
+  "autoLongSimilarityThreshold": 0.83,
+  "autoShortSimilarityThreshold": 0.8325,
+  "tierSimilarityBoost": 0.005,
   "deduplicationSimilarityThreshold": 0.965,
   "shortTermPromotionScore": 3,
   "longTermPromotionScore": 8,

src/index.ts

@@ -56,17 +56,17 @@ export const DEFAULT_EMBEDDING_CONTEXT_SIZE = 8192
 export const DEFAULT_EMBEDDING_CHUNK_SIZE = 1536
 export const TOKEN_CHARACTER_ESTIMATE = 4
 export const CONTEXT_TOKEN_RESERVE = 32
-export const DEFAULT_AUTO_RECALL_LIMIT = 4
-export const DEFAULT_AUTO_PREVIOUS_USER_MESSAGE_LIMIT = 5
+export const DEFAULT_AUTO_RECALL_LIMIT = 2
+export const DEFAULT_AUTO_PREVIOUS_USER_MESSAGE_LIMIT = 0
 export const DEFAULT_SHORT_TERM_RETENTION_DAYS = 1
 export const DEFAULT_LONG_TERM_RETENTION_DAYS = 7
 export const DAY_MILLISECONDS = 86_400_000
 export const DEFAULT_SEARCH_LIMIT = 8
 export const MIN_SEARCH_SIMILARITY = 0.42
-export const MIN_AUTO_LIFETIME_SIMILARITY = 0.6
-export const MIN_AUTO_LONG_SIMILARITY = 0.7
-export const MIN_AUTO_SHORT_SIMILARITY = 0.8
-export const TIER_SIMILARITY_BOOST = 0
+export const MIN_AUTO_LIFETIME_SIMILARITY = 0.8275
+export const MIN_AUTO_LONG_SIMILARITY = 0.83
+export const MIN_AUTO_SHORT_SIMILARITY = 0.8325
+export const TIER_SIMILARITY_BOOST = 0.005
 export const DEDUPLICATION_SIMILARITY = 0.965
 export const SHORT_TERM_PROMOTION_SCORE = 3
 export const LONG_TERM_PROMOTION_SCORE = 8

tests/memory.test.js

@@ -69,9 +69,12 @@ test("default retention is one day for short-term and seven days for long-term",
     assert.equal(DEFAULT_LONG_TERM_RETENTION_DAYS, 7)
     assert.equal(config.shortTermRetentionDays, 1)
     assert.equal(config.longTermRetentionDays, 7)
-    assert.equal(config.autoRecallLimit, 4)
-    assert.equal(config.autoPreviousUserMessageLimit, 5)
-    assert.equal(config.tierSimilarityBoost, 0)
+    assert.equal(config.autoRecallLimit, 2)
+    assert.equal(config.autoPreviousUserMessageLimit, 0)
+    assert.equal(config.autoShortSimilarityThreshold, 0.8325)
+    assert.equal(config.autoLongSimilarityThreshold, 0.83)
+    assert.equal(config.autoLifetimeSimilarityThreshold, 0.8275)
+    assert.equal(config.tierSimilarityBoost, 0.005)
   } finally {
     if (previousHome === undefined) {
       delete process.env.HOME
@@ -236,7 +239,7 @@ test("recall gives higher tiers a slight similarity ranking boost", async () =>
     async deleteExpired() {},
     queueUpdateMemory() {},
   }
-  const engine = new MemoryEngine(store, new FakeEmbedder(), { tierSimilarityBoost: 0.005 })
+  const engine = new MemoryEngine(store, new FakeEmbedder())
 
   const results = await engine.recall("query", "automatic", 3)