chore: update mcp plugin declaration to Agent Plugins 1.0

docs/ci-and-release.md

@@ -67,12 +67,11 @@ MCP Registry
   `package.json` they ship, since neither artifact is the package registered under that name.
 
 Client plugin manifests
-- `plugins/*/.claude-plugin/` (Claude), `.cursor-plugin/plugin.json` (Cursor) and
-  `gemini-extension.json` (Gemini CLI) let each client install the server from this
-  repository. The root `.claude-plugin/marketplace.json` is the marketplace listing, not a
-  plugin manifest. Gemini reads its file directly; Cursor additionally requires submission
-  to the Cursor marketplace before the plugin is discoverable.
-- The Claude manifests carry no `version`. The other two do, and `npm run sync:manifests`
+- `plugins/*/.claude-plugin/` (Claude), `gemini-extension.json` (Gemini CLI) and the root
+  `plugin.json` plus `mcp.json` (the Agent Plugins standard, which cursor.directory reads)
+  let each client install the server from this repository. The root
+  `.claude-plugin/marketplace.json` is the marketplace listing, not a plugin manifest.
+- The Claude manifests and `mcp.json` carry no `version`. The others do, and `npm run sync:manifests`
   copies it from `package.json`, along with `manifest.mcpb.json`, `server.json` and the two
   version fields in `package-lock.json`. Since each manifest launches the server with `@latest`,
   the field is metadata only and does not pin what gets installed.

mcp.json

@@ -0,0 +1,18 @@
+{
+  "$schema": "https://agent-plugins.org/schemas/1.0.0/mcp.schema.json",
+  "mcpServers": {
+    "firefox-devtools": {
+      "type": "stdio",
+      "command": "npx",
+      "args": [
+        "-y",
+        "@mozilla/firefox-devtools-mcp@latest",
+        "--auto-profile",
+        "--tool-preset",
+        "developer",
+        "--pref",
+        "remote.prefs.recommended=false"
+      ]
+    }
+  }
+}

plugin.json

@@ -0,0 +1,20 @@
+{
+  "$schema": "https://agent-plugins.org/schemas/1.0.0/plugin.schema.json",
+  "name": "firefox-devtools-mcp",
+  "version": "0.10.4",
+  "description": "Control Firefox for browsing, web testing, and debugging. Fill forms, capture network and console activity, take screenshots, run scripts, and profile performance. Supports Android devices.",
+  "author": {
+    "name": "Mozilla"
+  },
+  "homepage": "https://github.com/mozilla/firefox-devtools-mcp",
+  "repository": "https://github.com/mozilla/firefox-devtools-mcp",
+  "license": "MIT OR Apache-2.0",
+  "keywords": [
+    "firefox",
+    "browser",
+    "devtools",
+    "debugging",
+    "automation",
+    "performance"
+  ]
+}

scripts/sync-manifest-versions.mjs

@@ -18,7 +18,7 @@ const setVersion = (doc) => ({ ...doc, version });
 
 /** Each entry maps a file to the update it needs, since several carry the version more than once. */
 const targets = [
-  ['.cursor-plugin/plugin.json', setVersion],
+  ['plugin.json', setVersion],
   ['gemini-extension.json', setVersion],
   ['manifest.mcpb.json', setVersion],
   [