diff --git a/doc/architecture.md b/doc/architecture.md
index 09cb208..8df2037 100644
--- a/doc/architecture.md
+++ b/doc/architecture.md
@@ -61,7 +61,7 @@ flowchart TB
         SESS["Session State\n(agent/history.go)"]
     end
     subgraph ToolSrv["toolsrv (child process)"]
-        TRV["9P Server\n· dynamic tool dispatch\n· landlock sandboxed execution\n· idle timeout + Pdeathsig lifecycle"]
+        TRV["9P Server\n· tool registry + definitions\n· dynamic tool dispatch\n· landlock sandboxed execution\n· idle timeout + Pdeathsig lifecycle"]
     end
     subgraph Backends["LLM Backends"]
         OLLAMA["Ollama"]
@@ -80,7 +80,6 @@ flowchart TB
     LOOP <--> SESS
     LOOP --> TRV
     LOOP <--> Backends
-    TRV --> Tools["tool definitions\n(OLLIE_TOOLS_PATH)\n· shell, reasoning_think\n· file_read, file_write\n· lsp_*, memory_*\n· gui_*, subagent_*"]
 ```
 ## Core Library
 The core is a single Go module (`ollie`) with no binary. Binaries live in `cmd/`.