loopd: the memory block from memoryd, recall and memory as core tools

Implemented-By: OpenCode session (model recorded in docs/implementer-log.md)

crates/loopd/src/tools.rs

@@ -82,6 +82,27 @@ impl Registry {
         ])
     }
 
+    /// The tool set for the M5a epoch: `clock`, `recall` and `memory` (core), then the four tools
+    /// `brokerd` decides on. `loopd serve` uses this one.
+    pub fn m5a() -> Registry {
+        let mut entries = Registry::m3a().entries;
+        entries.insert(
+            1,
+            Entry {
+                schema: crate::memory::recall_schema(),
+                core: true,
+            },
+        );
+        entries.insert(
+            2,
+            Entry {
+                schema: crate::memory::memory_schema(),
+                core: true,
+            },
+        );
+        Registry::new(entries)
+    }
+
     /// The fixed tools array: core entries, then `find_tool`, then `call_tool`.
     pub fn core_schemas(&self) -> Vec<ToolSchema> {
         let mut schemas: Vec<ToolSchema> = self