diff --git a/bun.lock b/bun.lock
index 7206b6f..03b28d6 100644
--- a/bun.lock
+++ b/bun.lock
@@ -8,7 +8,7 @@
         "@opencode-ai/plugin": "1.16.2",
         "@opentui/core": "0.3.2",
         "@opentui/solid": "0.3.2",
-        "@four-bytes/opencode-plugin-lib": "github:four-bytes/opencode-plugin-lib",
+        "@four-bytes/opencode-plugin-lib": "github:four-bytes/opencode-plugin-lib#v0.2.0",
         "node-llama-cpp": "3.18.1",
         "solid-js": "1.9.13",
         "tree-sitter-javascript": "0.25.0",
@@ -81,7 +81,7 @@
 
     "@babel/types": ["@babel/types@7.29.7", "", { "dependencies": { "@babel/helper-string-parser": "^7.29.7", "@babel/helper-validator-identifier": "^7.29.7" } }, "sha512-4zBIxpPzowiZpusoFkyGVwakdRJUyuH5PxQ/PrqghfdFWWasvnCdPfQXHrenDai+gyLARulZjZowCOj6fjT4pA=="],
 
-    "@four-bytes/opencode-plugin-lib": ["@four-bytes/opencode-plugin-lib@github:four-bytes/opencode-plugin-lib#5680406", { "peerDependencies": { "@opencode-ai/plugin": ">=1.16.0" } }, "four-bytes-opencode-plugin-lib-5680406", "sha512-9XIrIbrq52ErspssAdKzRCVkLTmNUXXmIzGZ7SRjpFsqGmPLHJYy7M2pQTfDcnPxbzoBPyb+UyvS47S+Ah+NHw=="],
+    "@four-bytes/opencode-plugin-lib": ["@four-bytes/opencode-plugin-lib@github:four-bytes/opencode-plugin-lib#6b8d915", { "peerDependencies": { "@opencode-ai/plugin": ">=1.16.0" } }, "four-bytes-opencode-plugin-lib-6b8d915", "sha512-bMnpphF9E+R0OuEyNKH5/ScuEXBKBJtgF0M+kigSAVEvypd1F2ZJvN6b97hSCtOqQwumLS0j/UivDnNEB4vIdw=="],
 
     "@huggingface/jinja": ["@huggingface/jinja@0.5.9", "", {}, "sha512-uWTG+l3VJRsl7EXxYizuL3P+cCPoc3cRqbWWRcQN0FhejRfbdq0RNhCmbY/YDtnTcz9icdLYuLDjsnz4d8JMuw=="],
 
diff --git a/package.json b/package.json
index 29625e7..b113898 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@four-bytes/four-opencode-brain",
-  "version": "1.4.1",
+  "version": "1.5.1",
   "description": "Unified brain plugin — single SQLite DB for RAG search, memory, and knowledge base with content-hash dedup and per-session LRU cache",
   "license": "Apache-2.0",
   "type": "module",
@@ -18,7 +18,7 @@
     "four-bytes"
   ],
   "dependencies": {
-    "@four-bytes/opencode-plugin-lib": "github:four-bytes/opencode-plugin-lib",
+    "@four-bytes/opencode-plugin-lib": "github:four-bytes/opencode-plugin-lib#v0.2.0",
     "@opencode-ai/plugin": "1.16.2",
     "@opentui/core": "0.3.2",
     "@opentui/solid": "0.3.2",
diff --git a/src/cache.ts b/src/cache.ts
index 353112b..409f19b 100644
--- a/src/cache.ts
+++ b/src/cache.ts
@@ -1,58 +1,2 @@
-// ---------------------------------------------------------------------------
-// Per-session LRU cache using Map (TTL = process lifetime)
-// ---------------------------------------------------------------------------
-
-export class LRUCache<K, V> {
-  private map = new Map<K, { value: V; ts: number }>();
-
-  constructor(private maxEntries: number = 1000) {}
-
-  get(key: K): V | undefined {
-    const entry = this.map.get(key);
-    if (!entry) return undefined;
-    // Refresh LRU position
-    this.map.delete(key);
-    this.map.set(key, entry);
-    return entry.value;
-  }
-
-  set(key: K, value: V): void {
-    if (this.map.has(key)) this.map.delete(key);
-    else if (this.map.size >= this.maxEntries) {
-      // Evict oldest (first key in insertion order)
-      const firstKey = this.map.keys().next().value;
-      if (firstKey !== undefined) this.map.delete(firstKey);
-    }
-    this.map.set(key, { value, ts: Date.now() });
-  }
-
-  has(key: K): boolean {
-    return this.map.has(key);
-  }
-
-  clear(): void {
-    this.map.clear();
-  }
-
-  get size(): number {
-    return this.map.size;
-  }
-}
-
-// ---------------------------------------------------------------------------
-// Singleton session cache — reset on plugin init / opencode restart
-// ---------------------------------------------------------------------------
-
-export const sessionCache = {
-  embeddings: new LRUCache<string, Float32Array>(500),   // text hash → embedding vector
-  search: new LRUCache<string, unknown[]>(200),           // query+filters serialized → results
-  chunks: new LRUCache<string, unknown>(500),             // chunk ID → chunk data
-  hashes: new LRUCache<string, string>(2000),             // content → sha256 hex
-
-  reset(): void {
-    this.embeddings.clear();
-    this.search.clear();
-    this.chunks.clear();
-    this.hashes.clear();
-  },
-};
+// Re-exported from @four-bytes/opencode-plugin-lib
+export { LRUCache, sessionCache } from "@four-bytes/opencode-plugin-lib";
diff --git a/src/logger.ts b/src/logger.ts
index 38638f8..d43d3c7 100644
--- a/src/logger.ts
+++ b/src/logger.ts
@@ -1,5 +1,5 @@
 // ---------------------------------------------------------------------------
-// Throttled, rate-limited logger — no ANSI colors, compact single-line output
+// Throttled, rate-limited console logger — captured by opencode session log
 // ---------------------------------------------------------------------------
 
 type LogLevel = "debug" | "info" | "warn" | "error";
@@ -23,11 +23,6 @@ function shouldLog(key: string, intervalMs: number = 60000): boolean {
   return false;
 }
 
-/**
- * Suppress all console output. Use after the initial version banner.
- * When silent, only memory-based log aggregation happens — no console writes.
- * Toggle back with setSilent(false) for debug mode.
- */
 export function setSilent(val: boolean): void {
   silent = val;
 }
@@ -41,11 +36,9 @@ export function log(
   if (level === "debug" && process.env.BRAIN_DEBUG !== "true") return;
 
   if (level === "warn" || level === "info") {
-    // Throttle repetitive messages to once per 60s
     if (!shouldLog(key, 60000)) return;
   }
 
-  // Silent mode: skip all console output (errors still go to stderr)
   if (silent && level !== "error") return;
 
   const timestamp = new Date().toISOString();
@@ -55,5 +48,6 @@ export function log(
 
   if (level === "error") console.error(line);
   else if (level === "warn") console.warn(line);
+  else if (level === "debug") console.error(line);
   else console.log(line);
 }