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axafrance/webengine-web

v1.0.0MIT

Observe and interact with live web pages via WebEngine MCP (Selenium): snapshot, click/type/select, then generate UI code in any stack.

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Plugin webengine-web (Selenium)

Interactive gate between coding agents and a live browser. Bundles skills + MCP server for VS Code/Copilot (Agent Plugins 1.0) and Codex in one folder.

plugins/webengine-web/
  plugin.json               # Agent Plugins 1.0 manifest (Copilot/VS Code)
  mcp.json                  # portable MCP config (VS Code discovers it)
  .codex-plugin/plugin.json # Codex manifest
  .mcp.json                 # Codex bundled MCP server
  skills/webengine-web/     # observe/act/generate skill
  skills/webengine-scaffold/# solution scaffolding skill

Prerequisite (both agents): .NET 10 + package on NuGet (dnx AxaFrance.WebEngine.Mcp ...). Publish it once: dotnet pack src/AxaFrance.WebEngine.Mcp -c Release then dotnet nuget push *.nupkg --source https://api.nuget.org/v3/index.json --api-key <key>.

Option A — GitHub Copilot (VS Code)

  1. Chat: Install Plugin From Source → paste https://github.com/AxaFrance/webengine-dotnet (or add marketplace AxaFrance/webengine-dotnet via chat.plugins.marketplaces, or register a local clone via chat.pluginLocations).
  2. Enable the plugin; its MCP server starts automatically (no separate trust prompt).
  3. Verify: webengine-web in MCP: List Servers, skills in Chat: Configure Skills.

Without plugin install (manual): copy skills/webengine-web (+ skills/webengine-scaffold) to .github/skills/, and mcp.json content into .vscode/mcp.json.

Option B — Codex (CLI / IDE / desktop)

codex plugin marketplace add AxaFrance/webengine-dotnet --sparse .agents/plugins
# then install webengine-web from the Plugins Directory (marketplace: WebEngine Plugins)

Manual alternative: codex mcp add webengine-web -- dnx AxaFrance.WebEngine.Mcp --profile web --transport stdio

  • copy skills/ to ~/.codex/skills/. This repo also ships .agents/plugins/marketplace.json for repo-scoped installs.

Local build fallback (before NuGet publish)

dotnet build src/AxaFrance.WebEngine.Mcp -c Release, then replace the dnx command with dotnet exec <repo>/src/AxaFrance.WebEngine.Mcp/bin/Release/net10.0/AxaFrance.WebEngine.Mcp.dll --profile web --transport stdio. NEVER use plain dotnet run (its launch banner pollutes stdout). This repo's own .vscode/mcp.json already uses this form.

Use

Ask the agent to observe/act in the browser; it generates code in YOUR stack (Playwright TS, Selenium, WebEngine C#). Verify: 29 tools, initialize returns server instructions.