diff --git a/ts/EFFECT_NATIVE_REWRITE_AUDIT.md b/ts/EFFECT_NATIVE_REWRITE_AUDIT.md
index 1b6c63e5..ccc4ced6 100644
--- a/ts/EFFECT_NATIVE_REWRITE_AUDIT.md
+++ b/ts/EFFECT_NATIVE_REWRITE_AUDIT.md
@@ -12,8 +12,8 @@ Verified source roots:
 - Effect v4 subtree: `/home/elpresidank/YeeBois/projects/beep-effect2/.repos/effect-v4`
 - Installed Effect beta used by this workspace: `ts/node_modules/effect`
 
-Current signal counts from `ts/packages` after the 2026-06-02 client RPC
-acquisition cause tap slice:
+Current signal counts from `ts/packages` after the 2026-06-02 client socket
+close Effect boundary slice:
 
 | Signal | Count |
 | --- | ---: |
@@ -142,6 +142,10 @@ Notes:
   only to update connection state on runtime/client acquisition failure.
   `effect-rpc-client.ts` now uses `Effect.tapCause` and `Cause.pretty` before
   the public Promise boundary.
+- The client socket close Effect boundary slice removed the Promise `.catch`
+  from `BaseApi.close()`. The void public facade now runs `rpc.close()` through
+  `Effect.tryPromise` and logs the tagged socket close error through
+  `Effect.catch`.
 - `Record<string, any>` and `throwLibrarianServiceError` are now clean in
   `ts/packages`.
 
@@ -1010,6 +1014,26 @@ Notes:
   - `cd ts && bun run test`
   - `git diff --check`
 
+### 2026-06-02: Client Socket Close Effect Boundary Slice
+
+- Status: migrated and root-verified.
+- Completed:
+  - `ts/packages/client/src/socket/trustgraph-socket.ts` now wraps
+    `rpc.close()` with `Effect.tryPromise` inside the public `close(): void`
+    facade.
+  - Close failures are mapped to the existing tagged `TrustGraphSocketError`
+    shape and logged through `Effect.catch` instead of a Promise `.catch`.
+  - The remaining client socket Promise `.catch` matches are streaming callback
+    compatibility bridges that route failures to legacy `onError` callbacks.
+- Verification:
+  - `cd ts && bun run check:tsgo`
+  - `bun run --cwd ts/packages/client build`
+  - `bun run --cwd ts/packages/client test`
+  - `cd ts && bun run check`
+  - `cd ts && bun run build`
+  - `cd ts && bun run test`
+  - `git diff --check`
+
 ## Subagent Findings To Preserve
 
 - MCP/workbench:
diff --git a/ts/packages/client/src/socket/trustgraph-socket.ts b/ts/packages/client/src/socket/trustgraph-socket.ts
index 2f8c4f8d..f046f0a4 100644
--- a/ts/packages/client/src/socket/trustgraph-socket.ts
+++ b/ts/packages/client/src/socket/trustgraph-socket.ts
@@ -504,9 +504,14 @@ export function makeBaseApi(
      * Closes the WebSocket connection and cleans up
      */
     close() {
-      rpc.close().catch((err) => {
-        logClientError("[socket close error]", err);
-      });
+      Effect.runFork(
+        Effect.tryPromise({
+          try: () => rpc.close(),
+          catch: (error) => socketError("socket-close", toErrorMessage(error, "Socket close failed")),
+        }).pipe(
+          Effect.catch((error) => Effect.sync(() => logClientError("[socket close error]", error))),
+        ),
+      );
     },
 
     /**