Add more detailed README

Author: sd2k

README.md

@@ -1 +1,57 @@
-# MCP Server for Grafana
+# Grafana MCP server
+
+A [Model Context Protocol][mcp] (MCP) server for Grafana. 
+
+This provides access to your Grafana instance and the surrounding ecosystem.
+
+## Features
+
+- [x] Search for dashboards
+- [ ] List and fetch datasource information
+- [ ] Query datasources
+  - [ ] Prometheus
+  - [ ] Loki (log queries, metric queries)
+  - [ ] Tempo
+  - [ ] Pyroscope
+- [ ] Query Prometheus metadata
+  - [ ] Metric names
+  - [ ] Label names
+  - [ ] Label values
+- [ ] Search, create, update and close incidents, including attaching notes and other activity
+- [ ] Start Sift investigations and view the results
+
+The list of tools is configurable, so you can choose which tools you want to make available to the MCP client.
+This is useful if you don't use certain functionality or if you don't want to take up too much of the context window.
+
+### Tools
+
+## Usage
+
+1. Create a service account in Grafana with enough permissions to use the tools you want to use,
+generate a service account token, and copy it to the clipboard for use in the configuration file.
+Follow the [Grafana documentation][service-account] for details.
+
+2. Add the server configuration to your client configuration file. For example, for Claude Desktop:
+
+```json
+{
+  "mcpServers": {
+    "grafana": {
+      "command": "uvx",
+      "args": [
+        "mcp-grafana"
+      ],
+      "env": {
+        "GRAFANA_URL": "http://localhost:3000",
+        "GRAFANA_API_KEY": "<your service account token>"
+      }
+    }
+  }
+}
+```
+
+To disable a set of tools, set the environment variable `GRAFANA_TOOLS__<TOOL>__ENABLED` to `"false"`.
+For example, to disable the dashboard search tool, set `"GRAFANA_TOOLS__SEARCH__ENABLED": "false"`.
+
+[mcp]: https://modelcontextprotocol.io/
+[service-account]: https://grafana.com/docs/grafana/latest/administration/service-accounts/