From 2f5a8d65d5ca37f26dbd5b6149eb69a7f01f6c29 Mon Sep 17 00:00:00 2001
From: DevContainer User <devcontainer@example.com>
Date: Sun, 22 Feb 2026 20:03:54 +0000
Subject: [PATCH] fix: playwright MCP sidecar startup args (#41)

The Playwright MCP image (mcr.microsoft.com/playwright/mcp) doesn't
support --transport flag. Use node cli.js entrypoint with --headless,
--browser chromium, --no-sandbox, and --port for SSE mode.

Fixes #41

Generated with [Claude Code](https://claude.ai/code)
via [Happy](https://happy.engineering)

Co-Authored-By: Claude <noreply@anthropic.com>
Co-Authored-By: Happy <yesreply@happy.engineering>
---
 chart/Chart.yaml                | 2 +-
 chart/templates/deployment.yaml | 8 ++++++--
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/chart/Chart.yaml b/chart/Chart.yaml
index ea8fa91..736dfcb 100644
--- a/chart/Chart.yaml
+++ b/chart/Chart.yaml
@@ -2,5 +2,5 @@ apiVersion: v2
 name: devcontainer
 description: Dev Container with AI coding agents and MCP sidecars
 type: application
-version: 0.4.0
+version: 0.4.1
 appVersion: "latest"
diff --git a/chart/templates/deployment.yaml b/chart/templates/deployment.yaml
index 2374433..352c101 100644
--- a/chart/templates/deployment.yaml
+++ b/chart/templates/deployment.yaml
@@ -238,9 +238,13 @@ spec:
         - name: playwright-mcp
           image: "{{ .Values.mcp.sidecars.playwright.image.repository }}:{{ .Values.mcp.sidecars.playwright.image.tag }}"
           imagePullPolicy: Always
+          command: ["node"]
           args:
-            - --transport
-            - sse
+            - cli.js
+            - --headless
+            - --browser
+            - chromium
+            - --no-sandbox
             - --port
             - {{ .Values.mcp.sidecars.playwright.port | quote }}
           ports: