Remove built-in Playwright MCP support (#57521)

Author: Copilot

.changeset/remove-playwright-mcp.md

@@ -435,11 +435,6 @@
       "digest": "sha256:e0eb29cdf8effbbebf115ea99a5f654a44681dfd293661b0991498d651ca6cb4",
       "pinned_image": "grafana/mcp-grafana:1.1.0-alpine@sha256:e0eb29cdf8effbbebf115ea99a5f654a44681dfd293661b0991498d651ca6cb4"
     },
-    "mcr.microsoft.com/playwright/mcp": {
-      "image": "mcr.microsoft.com/playwright/mcp",
-      "digest": "sha256:18c0a9c934004fe9580cc79f1e8e6e6cde7c667348b215335e8a23fd3e509804",
-      "pinned_image": "mcr.microsoft.com/playwright/mcp@sha256:18c0a9c934004fe9580cc79f1e8e6e6cde7c667348b215335e8a23fd3e509804"
-    },
     "node:lts-alpine": {
       "image": "node:lts-alpine",
       "digest": "sha256:e67514e5d0f6c46656005e1b693b2ec9d52e80b641307de684d4a015ba7a4eaf",

.github/aw/actions-lock.json

@@ -120,7 +120,7 @@ The `tools:` field configures which tools the coding agent may use.
   tools:
     bash: ["*"]
   ```
-- `playwright:` - Browser automation for visual regression, accessibility, and end-to-end testing. Use `mode: cli` (recommended) — no Docker, runs `playwright-cli <command>` in bash, `localhost` reaches local servers directly. `mode: mcp` is deprecated (Docker-based). Pin a version with `version:` and restrict network to `local` + `playwright`.
+- `playwright:` - Browser automation for visual regression, accessibility, and end-to-end testing. The built-in integration uses `playwright-cli <command>` in bash, and `localhost` reaches local servers directly. `mode: mcp` is removed; use a custom `mcp-servers` entry if MCP is required. Pin the CLI with `version:` and restrict network to `local` + `playwright`.
 
   ```yaml
   tools:

.github/aw/syntax-tools-imports.md

@@ -58,7 +58,6 @@ tools:
   bash: true
   cli-proxy: true
   playwright:
-    mode: cli
     version: "0.1.18"
 network:
   allowed:
@@ -67,6 +66,7 @@ network:
   - playwright
 
 ---
+
 # Archivx — Workflow Visualizer
 
 You are Archivx, a workflow visualizer that creates SVG summaries of agentic workflow health and activity using the glowmotion skill.
@@ -212,4 +212,4 @@ The SVG architecture diagram has been committed to `docs/src/assets/archivx/agen
 ### Workflow Activity
 
 (collapsible — table of top 10 workflows with run counts and success rates)
-```
+```