Add dashboard tools (#62)

* Add tool to get dashboard by uid

* fix context and dashboard test

Author: gemiit

README.md

@@ -7,6 +7,7 @@ This provides access to your Grafana instance and the surrounding ecosystem.
 ## Features
 
 - [x] Search for dashboards
+- [x] Get dashboard by UID
 - [x] List and fetch datasource information
 - [ ] Query datasources
   - [x] Prometheus
@@ -35,6 +36,7 @@ This is useful if you don't use certain functionality or if you don't want to ta
 | Tool | Category | Description |
 | --- | --- | --- |
 | `search_dashboards` | Search | Search for dashboards |
+| `get_dashboard_by_uid` | Dashboard | Get a dashboard by uid |
 | `list_datasources` | Datasources | List datasources |
 | `get_datasource_by_uid` | Datasources | Get a datasource by uid |
 | `get_datasource_by_name` | Datasources | Get a datasource by name |

cmd/mcp-grafana/main.go

@@ -23,6 +23,7 @@ func newServer() *server.MCPServer {
 	tools.AddIncidentTools(s)
 	tools.AddPrometheusTools(s)
 	tools.AddLokiTools(s)
+	tools.AddDashboardTools(s)
 	return s
 }
 

tools/dashboard.go

@@ -0,0 +1,35 @@
+package tools
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/mark3labs/mcp-go/server"
+
+	"github.com/grafana/grafana-openapi-client-go/models"
+	mcpgrafana "github.com/grafana/mcp-grafana"
+)
+
+type GetDashboardByUIDParams struct {
+	UID string `json:"uid" jsonschema:"required,description=The UID of the dashboard"`
+}
+
+func getDashboardByUID(ctx context.Context, args GetDashboardByUIDParams) (*models.DashboardFullWithMeta, error) {
+	c := mcpgrafana.GrafanaClientFromContext(ctx)
+	
+	dashboard, err := c.Dashboards.GetDashboardByUID(args.UID)
+	if err != nil {
+		return nil, fmt.Errorf("get dashboard by uid %s: %w", args.UID, err)
+	}
+	return dashboard.Payload, nil
+}
+
+var GetDashboardByUID = mcpgrafana.MustTool(
+	"get_dashboard_by_uid",
+	"Get dashboard by uid",
+	getDashboardByUID,
+)
+
+func AddDashboardTools(mcp *server.MCPServer) {
+	GetDashboardByUID.Register(mcp)
+}

tools/dashboard_test.go

@@ -0,0 +1,45 @@
+// Requires a Grafana instance running on localhost:3000,
+// with a dashboard provisioned.
+// Run with `go test -tags integration`.
+//go:build integration
+
+package tools
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestDashboardTools(t *testing.T) {
+	t.Run("get dashboard by uid", func(t *testing.T) {
+		ctx := newTestContext()
+		
+		// First, let's search for a dashboard to get its UID
+		searchResults, err := searchDashboards(ctx, SearchDashboardsParams{})
+		require.NoError(t, err)
+		require.Greater(t, len(searchResults), 0, "No dashboards found")
+		
+		dashboardUID := searchResults[0].UID
+		
+		// Now test the get dashboard by uid functionality
+		result, err := getDashboardByUID(ctx, GetDashboardByUIDParams{
+			UID: dashboardUID,
+		})
+		require.NoError(t, err)
+		dashboardMap, ok := result.Dashboard.(map[string]interface{})
+		require.True(t, ok, "Dashboard should be a map")
+		assert.Equal(t, dashboardUID, dashboardMap["uid"])
+		assert.NotNil(t, result.Meta)
+	})
+
+	t.Run("get dashboard by uid - invalid uid", func(t *testing.T) {
+		ctx := newTestContext()
+		
+		_, err := getDashboardByUID(ctx, GetDashboardByUIDParams{
+			UID: "non-existent-uid",
+		})
+		require.Error(t, err)
+	})
+}