Update context7 plugin — migrate to remote MCP server (#4985)

Replace the npx stdio launch of @upstash/context7-mcp with Context7's
hosted remote MCP server (https://mcp.context7.com/mcp), matching the
configuration Upstash ships in upstash/context7 (plugins/claude/context7).
Adds a README and refreshes the plugin descriptions.

Co-Authored-By: Fahreddin Özcan <88107904+fahreddinozcan@users.noreply.github.com>

Driver: dir-plugin-add-official

.claude-plugin/marketplace.json

@@ -1058,7 +1058,10 @@
     },
     {
       "name": "context7",
-      "description": "Upstash Context7 MCP server for up-to-date documentation lookup. Pull version-specific documentation and code examples directly from source repositories into your LLM context.",
+      "description": "Upstash Context7 MCP server for up-to-date documentation lookup. Connects to Context7's hosted remote MCP server (https://mcp.context7.com/mcp) — no local Node.js or npx required — to pull version-specific documentation and code examples directly from source repositories into your LLM context. Works anonymously out of the box; set CONTEXT7_API_KEY for higher rate limits.",
+      "author": {
+        "name": "Upstash"
+      },
       "category": "development",
       "source": "./external_plugins/context7",
       "homepage": "https://github.com/anthropics/claude-plugins-public/tree/main/external_plugins/context7",

external_plugins/context7/.claude-plugin/plugin.json

@@ -1,6 +1,6 @@
 {
   "name": "context7",
-  "description": "Upstash Context7 MCP server for up-to-date documentation lookup. Pull version-specific documentation and code examples directly from source repositories into your LLM context.",
+  "description": "Upstash Context7 MCP server for up-to-date documentation lookup. Connects to Context7's hosted remote MCP server (https://mcp.context7.com/mcp) — no local Node.js or npx required — to pull version-specific documentation and code examples directly from source repositories into your LLM context. Works anonymously out of the box; set CONTEXT7_API_KEY for higher rate limits.",
   "author": {
     "name": "Upstash"
   }

external_plugins/context7/.mcp.json

@@ -1,6 +1,11 @@
 {
-  "context7": {
-    "command": "npx",
-    "args": ["-y", "@upstash/context7-mcp"]
+  "mcpServers": {
+    "context7": {
+      "type": "http",
+      "url": "https://mcp.context7.com/mcp",
+      "headers": {
+        "Authorization": "${CONTEXT7_API_KEY:-}"
+      }
+    }
   }
 }

external_plugins/context7/README.md

@@ -0,0 +1,35 @@
+# Context7
+
+[Context7](https://context7.com) solves a common problem with AI coding assistants: outdated training data and hallucinated APIs. Instead of relying on stale knowledge, Context7 fetches current documentation and code examples directly from source repositories.
+
+This plugin connects Claude Code to Context7's hosted remote MCP server (`https://mcp.context7.com/mcp`) — no local Node.js, npm, or npx required.
+
+## Available Tools
+
+- **`resolve-library-id`** — searches for libraries and returns Context7-compatible identifiers (e.g. `/vercel/next.js`) plus available versions.
+- **`query-docs`** — fetches documentation for a specific library, ranked by relevance to your question.
+
+## API Key (optional)
+
+Without an API key the plugin connects anonymously and shares the anonymous rate limits. To use your own plan, create an API key in the [Context7 dashboard](https://context7.com/dashboard) and export it as an environment variable before launching Claude Code:
+
+```bash
+# e.g. in ~/.zshrc or ~/.bashrc
+export CONTEXT7_API_KEY="your-api-key"
+```
+
+The plugin's MCP server configuration picks up `CONTEXT7_API_KEY` automatically. Restart Claude Code after setting it, then verify usage in the [dashboard](https://context7.com/dashboard).
+
+## Usage
+
+The plugin works automatically when you ask about libraries:
+
+- "How do I set up authentication in Next.js 15?"
+- "Show me React Server Components examples"
+- "What's the Prisma syntax for relations?"
+
+To get documentation for a specific version, include the version in the library ID (e.g. `/vercel/next.js/v15.1.8`). The `resolve-library-id` tool returns available versions, so you can pick the one that matches your project.
+
+---
+
+Maintained by [Upstash](https://upstash.com). Source and full plugin (with skills, agents, and commands): [upstash/context7](https://github.com/upstash/context7).