microsoft-foundry · foundry-samples-repo-sync · Jul 13, 2026 · Jul 13, 2026
diff --git a/...r-own/invocations_ws/HelloWorld/src/hello-world-dotnet-invocations-ws/E2ELocal/Program.cs b/...r-own/invocations_ws/HelloWorld/src/hello-world-dotnet-invocations-ws/E2ELocal/Program.cs
@@ -76,7 +76,6 @@
     targetUrl = url ?? BuildFoundryUrl(foundryEndpoint.TrimEnd('/'), agent, sessionId, apiVersion);
     var token = await GetEntraTokenAsync();
     headers["Authorization"] = $"Bearer {token}";
-    headers["Foundry-Features"] = "HostedAgents=V1Preview";
 }
 else
 {

diff --git a/...ocations_ws/HelloWorld/src/hello-world-dotnet-invocations-ws/chat_client/Proxy/Program.cs b/...ocations_ws/HelloWorld/src/hello-world-dotnet-invocations-ws/chat_client/Proxy/Program.cs
@@ -9,7 +9,7 @@
  *   • serves the static page (chat_client/index.html) on /  and /index.html;
  *   • upgrades inbound /invocations_ws to a WebSocket;
  *   • opens an outbound WebSocket to the Foundry hosted agent endpoint
- *     with Authorization: Bearer <Entra token> + Foundry-Features headers;
+ *     with Authorization: Bearer <Entra token> header;
  *   • forwards binary and text frames in both directions verbatim.
  *
  * Run:
@@ -108,7 +108,6 @@
 
     using var upstream = new ClientWebSocket();
     upstream.Options.SetRequestHeader("Authorization", $"Bearer {token}");
-    upstream.Options.SetRequestHeader("Foundry-Features", "HostedAgents=V1Preview");
     try
     {
         await upstream.ConnectAsync(new Uri(foundryWsUrl), ctx.RequestAborted);

diff --git a/...ring-your-own/invocations_ws/duplex-live-agent/src/duplex-live-agent/chat_client/proxy.py b/...ring-your-own/invocations_ws/duplex-live-agent/src/duplex-live-agent/chat_client/proxy.py
@@ -138,7 +138,6 @@ async def _warmup_session(args, session_id: str) -> None:
         return
     headers = {
         "Authorization": f"Bearer {token}",
-        "Foundry-Features": "HostedAgents=V1Preview",
     }
     print(f"[proxy] warming up sandbox session={session_id}")
     try:
@@ -165,7 +164,6 @@ async def handler(browser_ws):
             return
         headers = {
             "Authorization": f"Bearer {token}",
-            "Foundry-Features": "HostedAgents=V1Preview",
         }
         print(f"[proxy] {peer} -> {url}")
         try:

diff --git a/...agents/bring-your-own/invocations_ws/duplex-live-agent/src/duplex-live-agent/e2e_local.py b/...agents/bring-your-own/invocations_ws/duplex-live-agent/src/duplex-live-agent/e2e_local.py
@@ -181,7 +181,6 @@ def main() -> int:
         token = _entra_token()
         headers = {
             "Authorization": f"Bearer {token}",
-            "Foundry-Features": "HostedAgents=V1Preview",
         }
     else:
         url = args.url or "ws://localhost:8088/invocations_ws"

diff --git a/...ted-agents/bring-your-own/invocations_ws/hello-world/src/hello-world/chat_client/proxy.py b/...ted-agents/bring-your-own/invocations_ws/hello-world/src/hello-world/chat_client/proxy.py
@@ -138,7 +138,6 @@ async def _warmup_session(args, session_id: str) -> None:
         return
     headers = {
         "Authorization": f"Bearer {token}",
-        "Foundry-Features": "HostedAgents=V1Preview",
     }
     print(f"[proxy] warming up sandbox session={session_id}")
     try:
@@ -165,7 +164,6 @@ async def handler(browser_ws):
             return
         headers = {
             "Authorization": f"Bearer {token}",
-            "Foundry-Features": "HostedAgents=V1Preview",
         }
         print(f"[proxy] {peer} -> {url}")
         try:

diff --git a/...thon/hosted-agents/bring-your-own/invocations_ws/hello-world/src/hello-world/e2e_local.py b/...thon/hosted-agents/bring-your-own/invocations_ws/hello-world/src/hello-world/e2e_local.py
@@ -181,7 +181,6 @@ def main() -> int:
         token = _entra_token()
         headers = {
             "Authorization": f"Bearer {token}",
-            "Foundry-Features": "HostedAgents=V1Preview",
         }
     else:
         url = args.url or "ws://localhost:8088/invocations_ws"

diff --git a/...your-own/invocations_ws/livekit-server/src/livekit-server/chat_client/README.md b/...your-own/invocations_ws/livekit-server/src/livekit-server/chat_client/README.md
@@ -20,7 +20,7 @@ The proxy:
   `LIVEKIT_AGENT_NAME` (Foundry-hosted mode).
 - In Foundry mode, fetches an Entra Bearer token via
   `az account get-access-token --resource https://ai.azure.com` and
-  attaches it + the `Foundry-Features: HostedAgents=V1Preview` header.
+  attaches it as the `Authorization` header.
 - Forwards signaling JSON verbatim in both directions.
 
 ## Install

diff --git a/...s/bring-your-own/invocations_ws/livekit-server/src/livekit-server/chat_client/upstream.py b/...s/bring-your-own/invocations_ws/livekit-server/src/livekit-server/chat_client/upstream.py
@@ -91,5 +91,4 @@ def resolve() -> tuple[str, str, dict[str, str]]:
     logger.info("foundry mode session_id=%s", sid)
     return url, sid, {
         "Authorization": f"Bearer {token}",
-        "Foundry-Features": "HostedAgents=V1Preview",
     }
diff --git a/...les/python/hosted-agents/bring-your-own/invocations_ws/pipecat-webrtc/README.md b/...les/python/hosted-agents/bring-your-own/invocations_ws/pipecat-webrtc/README.md
@@ -19,7 +19,7 @@ A real-time voice agent hosted as a **Bring Your Own** WebSocket container that
 
 Why a single `/invocations_ws` endpoint? This sample lives under the `bring-your-own/invocations_ws/` tree, where the Foundry contract is "one duplex WebSocket called `invocations_ws`". We keep that surface here but use the WebSocket purely for **WebRTC signaling** (offer / answer / ICE candidates / ICE config). Audio still flows over the WebRTC peer connection and never touches the signaling WebSocket.
 
-The browser client lives in [`chat_client/`](chat_client/) — a small FastAPI portal that terminates the browser's WebSocket, attaches the Entra token + `Foundry-Features` header in hosted mode, and forwards signaling JSON to the upstream `/invocations_ws`. The same proxy works against either a local server or the Foundry-hosted agent.
+The browser client lives in [`chat_client/`](chat_client/) — a small FastAPI portal that terminates the browser's WebSocket, attaches the Entra token as the `Authorization` header in hosted mode, and forwards signaling JSON to the upstream `/invocations_ws`. The same proxy works against either a local server or the Foundry-hosted agent.
 
 ## ⚠️ Security Warning
 

diff --git a/...r-own/invocations_ws/pipecat-webrtc/src/pipecat-ws-webrtc/chat_client/README.md b/...r-own/invocations_ws/pipecat-webrtc/src/pipecat-ws-webrtc/chat_client/README.md
@@ -18,7 +18,7 @@ The proxy:
   `PIPECAT_WEBRTC_AGENT_NAME` (Foundry-hosted mode).
 - In Foundry mode, fetches an Entra Bearer token via
   `az account get-access-token --resource https://ai.azure.com` and
-  attaches it + the `Foundry-Features: HostedAgents=V1Preview` header.
+  attaches it as the `Authorization` header.
 - Forwards signaling JSON verbatim in both directions.
 
 ## Install

diff --git a/...ring-your-own/invocations_ws/pipecat-webrtc/src/pipecat-ws-webrtc/chat_client/upstream.py b/...ring-your-own/invocations_ws/pipecat-webrtc/src/pipecat-ws-webrtc/chat_client/upstream.py
@@ -91,5 +91,4 @@ def resolve() -> tuple[str, str, dict[str, str]]:
     logger.info("foundry mode session_id=%s", sid)
     return url, sid, {
         "Authorization": f"Bearer {token}",
-        "Foundry-Features": "HostedAgents=V1Preview",
     }
diff --git a/...wn/invocations_ws/pipecat-ws-server/src/pipecat-ws-server/chat_client/README.md b/...wn/invocations_ws/pipecat-ws-server/src/pipecat-ws-server/chat_client/README.md
@@ -15,7 +15,7 @@ The proxy:
   `PIPECAT_WEBSOCKET_AGENT_NAME` (Foundry-hosted mode).
 - In Foundry mode, fetches an Entra Bearer token via
   `az account get-access-token --resource https://ai.azure.com` and
-  attaches it + the `Foundry-Features: HostedAgents=V1Preview` header.
+  attaches it as the `Authorization` header.
 - Transcodes between the browser's simple PCM/JSON wire format and
   pipecat's protobuf framing so the page stays protocol-agnostic.
 

diff --git a/...g-your-own/invocations_ws/pipecat-ws-server/src/pipecat-ws-server/chat_client/upstream.py b/...g-your-own/invocations_ws/pipecat-ws-server/src/pipecat-ws-server/chat_client/upstream.py
@@ -75,7 +75,7 @@ def resolve() -> tuple[str, str, dict[str, str]]:
     """Return ``(upstream_url, session_id, headers)``.
 
     Local mode: ``(LOCAL_URL value, "", {})`` — no auth.
-    Foundry mode: ``(public_url, generated_sid, {Authorization, Foundry-Features})``.
+    Foundry mode: ``(public_url, generated_sid, {Authorization})``.
     """
     local = os.environ.get(LOCAL_ENV, "").strip()
     if local:
@@ -95,5 +95,4 @@ def resolve() -> tuple[str, str, dict[str, str]]:
     logger.info("foundry mode session_id=%s", sid)
     return url, sid, {
         "Authorization": f"Bearer {token}",
-        "Foundry-Features": "HostedAgents=V1Preview",
     }