diff --git a/backend/src/bridge/session-bridge.ts b/backend/src/bridge/session-bridge.ts
index e1330f8a..c7f418f5 100644
--- a/backend/src/bridge/session-bridge.ts
+++ b/backend/src/bridge/session-bridge.ts
@@ -29,11 +29,8 @@ export class SessionBridge {
         this.fan({ type: "text_delta", text: m.assistantMessageEvent.delta ?? "" });
       } else if (m.type === "text_delta") {
         this.fan({ type: "text_delta", text: m.text ?? "" });
-      } else if (m.type === "tool_execution_start") {
-        this.fan({ type: "info", level: "info", text: `▶ ${m.toolName ?? "tool"}: ${JSON.stringify(m.args ?? {}).slice(0, 200)}` });
-      } else if (m.type === "tool_execution_end") {
-        const summary = m.result?.content?.[0]?.text?.slice(0, 200) ?? "";
-        this.fan({ type: "info", level: "info", text: summary ? `✓ ${m.toolName ?? "tool"}: ${summary}` : `✓ ${m.toolName ?? "tool"}` });
+      // tool_execution_* events are intentionally NOT forwarded: they clutter
+      // the UI with raw bash/read output the user did not ask for.
       } else if (m.type === "system_event") {
         this.fan(m as ClientEvent);
       } else if (m.type === "agent_end") {
diff --git a/docker/core.Dockerfile b/docker/core.Dockerfile
index f61811c2..fe323113 100644
--- a/docker/core.Dockerfile
+++ b/docker/core.Dockerfile
@@ -43,6 +43,8 @@ RUN python -m venv /opt/venv \
     && /opt/venv/bin/pip install --no-cache-dir --upgrade pip \
     && (cd /app/harness && /opt/venv/bin/pip install --no-cache-dir .) \
     && cp /app/harness/workflow.yaml /opt/venv/lib/python3.12/site-packages/workflow.yaml
+# tht cerca config/tht.yaml relativo al CWD (ignora THT_CONFIG env). Symlink al workspace attivo.
+RUN mkdir -p /app/harness/config && ln -sf /app/harness/workspaces/local.yaml /app/harness/config/tht.yaml
 # PiProcessManager (backend) prepende harnessDir/.venv/bin al PATH del child Pi → symlink al venv reale
 RUN ln -s /opt/venv /app/harness/.venv