feat: Add Octicon icons to MCP tools, resources, and prompts

cmd/github-mcp-server/generate_docs.go

@@ -104,20 +104,37 @@
 	return os.WriteFile(docsPath, []byte(updatedContent), 0600) //#nosec G306
 }
 
+// octiconImg returns an img tag for an Octicon that works with GitHub's light/dark theme.
+// Uses picture element with prefers-color-scheme for automatic theme switching.
+// References icons from the repo's pkg/octicons/icons directory.
+func octiconImg(name string) string {
+	if name == "" {
+		return ""
+	}
+	// Use picture element with media queries for light/dark mode support
+	// GitHub renders these correctly in markdown
+	lightIcon := fmt.Sprintf("pkg/octicons/icons/%s-light.png", name)
+	darkIcon := fmt.Sprintf("pkg/octicons/icons/%s-dark.png", name)
+	return fmt.Sprintf(`<picture><source media="(prefers-color-scheme: dark)" srcset="%s"><source media="(prefers-color-scheme: light)" srcset="%s"><img src="%s" width="20" height="20" alt="%s"></picture>`, darkIcon, lightIcon, lightIcon, name)
+}
+
 func generateToolsetsDoc(i *inventory.Inventory) string {
 	var buf strings.Builder
 
-	// Add table header and separator
-	buf.WriteString("| Toolset                 | Description                                                   |\n")
-	buf.WriteString("| ----------------------- | ------------------------------------------------------------- |\n")
+	// Add table header and separator (with icon column)
+	buf.WriteString("|     | Toolset                 | Description                                                   |\n")
+	buf.WriteString("| --- | ----------------------- | ------------------------------------------------------------- |\n")
 
 	// Add the context toolset row with custom description (strongly recommended)
-	buf.WriteString("| `context`               | **Strongly recommended**: Tools that provide context about the current user and GitHub context you are operating in |\n")
+	// Get context toolset for its icon
+	contextIcon := octiconImg("person")
+	fmt.Fprintf(&buf, "| %s | `context`               | **Strongly recommended**: Tools that provide context about the current user and GitHub context you are operating in |\n", contextIcon)
 
 	// AvailableToolsets() returns toolsets that have tools, sorted by ID
 	// Exclude context (custom description above) and dynamic (internal only)
 	for _, ts := range i.AvailableToolsets("context", "dynamic") {
-		fmt.Fprintf(&buf, "| `%s` | %s |\n", ts.ID, ts.Description)
+		icon := octiconImg(ts.Icon)
+		fmt.Fprintf(&buf, "| %s | `%s` | %s |\n", icon, ts.ID, ts.Description)
 	}
 
 	return strings.TrimSuffix(buf.String(), "\n")
@@ -134,6 +151,7 @@
 	var buf strings.Builder
 	var toolBuf strings.Builder
 	var currentToolsetID inventory.ToolsetID
+	var currentToolsetIcon string
 	firstSection := true
 
 	writeSection := func() {
@@ -145,7 +163,11 @@
 		}
 		firstSection = false
 		sectionName := formatToolsetName(string(currentToolsetID))
-		fmt.Fprintf(&buf, "<details>\n\n<summary>%s</summary>\n\n%s\n\n</details>", sectionName, strings.TrimSuffix(toolBuf.String(), "\n\n"))
+		icon := octiconImg(currentToolsetIcon)
+		if icon != "" {
+			icon += " "
+		}
+		fmt.Fprintf(&buf, "<details>\n\n<summary>%s%s</summary>\n\n%s\n\n</details>", icon, sectionName, strings.TrimSuffix(toolBuf.String(), "\n\n"))
 		toolBuf.Reset()
 	}
 
@@ -154,8 +176,9 @@
 		if tool.Toolset.ID != currentToolsetID {
 			writeSection()
 			currentToolsetID = tool.Toolset.ID
+			currentToolsetIcon = tool.Toolset.Icon
 		}
-		writeToolDoc(&toolBuf, tool.Tool)
+		writeToolDoc(&toolBuf, tool.Tool, tool.Toolset.Icon)
 		toolBuf.WriteString("\n\n")
 	}
 
@@ -189,8 +212,8 @@
 	}
 }
 
-func writeToolDoc(buf *strings.Builder, tool mcp.Tool) {
-	// Tool name only (using annotation name instead of verbose description)
+func writeToolDoc(buf *strings.Builder, tool mcp.Tool, icon string) {
+	// Tool name (no icon - section header already has the toolset icon)
 	fmt.Fprintf(buf, "- **%s** - %s\n", tool.Name, tool.Annotations.Title)
 
 	// Parameters

go.mod

@@ -37,7 +37,7 @@ require (
 	github.com/go-viper/mapstructure/v2 v2.4.0
 	github.com/google/go-querystring v1.1.0 // indirect
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
-	github.com/modelcontextprotocol/go-sdk v1.1.0
+	github.com/modelcontextprotocol/go-sdk v1.2.0-pre.1
 	github.com/pelletier/go-toml/v2 v2.2.4 // indirect
 	github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect
 	github.com/rogpeppe/go-internal v1.13.1 // indirect

go.sum

@@ -17,6 +17,8 @@ github.com/go-openapi/swag v0.21.1 h1:wm0rhTb5z7qpJRHBdPOMuY4QjVUMbF6/kwoYeRAOrK
 github.com/go-openapi/swag v0.21.1/go.mod h1:QYRuS/SOXUCsnplDa677K7+DxSOj6IPNl/eQntq43wQ=
 github.com/go-viper/mapstructure/v2 v2.4.0 h1:EBsztssimR/CONLSZZ04E8qAkxNYq4Qp9LvH92wZUgs=
 github.com/go-viper/mapstructure/v2 v2.4.0/go.mod h1:oJDH3BJKyqBA2TXFhDsKDGDTlndYOZ6rGS0BRZIxGhM=
+github.com/golang-jwt/jwt/v5 v5.2.2 h1:Rl4B7itRWVtYIHFrSNd7vhTiz9UpLdi6gZhZ3wEeDy8=
+github.com/golang-jwt/jwt/v5 v5.2.2/go.mod h1:pqrtFR0X4osieyHYxtmOUWsAWrfe1Q5UVIyoH402zdk=
 github.com/google/go-cmp v0.5.2/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/go-cmp v0.7.0 h1:wk8382ETsv4JYUZwIsn6YpYiWiBsYLSJiTsyBybVuN8=
 github.com/google/go-cmp v0.7.0/go.mod h1:pXiqmnSA92OHEEa9HXL2W4E7lf9JzCmGVUdgjX3N/iU=
@@ -55,8 +57,8 @@ github.com/microcosm-cc/bluemonday v1.0.27 h1:MpEUotklkwCSLeH+Qdx1VJgNqLlpY2KXwX
 github.com/microcosm-cc/bluemonday v1.0.27/go.mod h1:jFi9vgW+H7c3V0lb6nR74Ib/DIB5OBs92Dimizgw2cA=
 github.com/migueleliasweb/go-github-mock v1.3.0 h1:2sVP9JEMB2ubQw1IKto3/fzF51oFC6eVWOOFDgQoq88=
 github.com/migueleliasweb/go-github-mock v1.3.0/go.mod h1:ipQhV8fTcj/G6m7BKzin08GaJ/3B5/SonRAkgrk0zCY=
-github.com/modelcontextprotocol/go-sdk v1.1.0 h1:Qjayg53dnKC4UZ+792W21e4BpwEZBzwgRW6LrjLWSwA=
-github.com/modelcontextprotocol/go-sdk v1.1.0/go.mod h1:6fM3LCm3yV7pAs8isnKLn07oKtB0MP9LHd3DfAcKw10=
+github.com/modelcontextprotocol/go-sdk v1.2.0-pre.1 h1:14+JrlEIFvUmbu5+iJzWPLk8CkpvegfKr42oXyjp3O4=
+github.com/modelcontextprotocol/go-sdk v1.2.0-pre.1/go.mod h1:6fM3LCm3yV7pAs8isnKLn07oKtB0MP9LHd3DfAcKw10=
 github.com/muesli/cache2go v0.0.0-20221011235721-518229cd8021 h1:31Y+Yu373ymebRdJN1cWLLooHH8xAr0MhKTEJGV/87g=
 github.com/muesli/cache2go v0.0.0-20221011235721-518229cd8021/go.mod h1:WERUkUryfUWlrHnFSO/BEUZ+7Ns8aZy7iVOGewxKzcc=
 github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e/go.mod h1:zD1mROLANZcx1PVRCS0qkT7pwLkGfwJo4zjcN/Tysno=

internal/ghmcp/server.go

@@ -179,9 +179,11 @@ func NewMCPServer(cfg MCPServerConfig) (*mcp.Server, error) {
 	// In dynamic mode, explicitly advertise capabilities since tools/resources/prompts
 	// may be enabled at runtime even if none are registered initially.
 	if cfg.DynamicToolsets {
-		serverOpts.HasTools = true
-		serverOpts.HasResources = true
-		serverOpts.HasPrompts = true
+		serverOpts.Capabilities = &mcp.ServerCapabilities{
+			Tools:     &mcp.ToolCapabilities{},
+			Resources: &mcp.ResourceCapabilities{},
+			Prompts:   &mcp.PromptCapabilities{},
+		}
 	}
 
 	ghServer := github.NewServer(cfg.Version, serverOpts)

pkg/github/__toolsnaps__/assign_copilot_to_issue.snap

@@ -26,5 +26,23 @@
       }
     }
   },
-  "name": "assign_copilot_to_issue"
+  "name": "assign_copilot_to_issue",
+  "icons": [
+    {
+      "src": "data:image/png;base64,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",
+      "mimeType": "image/png",
+      "sizes": [
+        "24x24"
+      ],
+      "theme": "light"
+    },
+    {
+      "src": "data:image/png;base64,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",
+      "mimeType": "image/png",
+      "sizes": [
+        "24x24"
+      ],
+      "theme": "dark"
+    }
+  ]
 }

pkg/github/__toolsnaps__/fork_repository.snap

@@ -24,5 +24,23 @@
       }
     }
   },
-  "name": "fork_repository"
+  "name": "fork_repository",
+  "icons": [
+    {
+      "src": "data:image/png;base64,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",
+      "mimeType": "image/png",
+      "sizes": [
+        "24x24"
+      ],
+      "theme": "light"
+    },
+    {
+      "src": "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABgAAAAYCAYAAADgdz34AAAABmJLR0QA/wD/AP+gvaeTAAABoUlEQVRIibWUPS+EQRSFz0hsxaIgIZHYllDYiiiUEn6Bn0Dho6Nhf4GPjkYn8ZEgGqFRSNBoVTQKdhEROsk+mrt2svvu7Gutk7yZzJlz77nzztyR/hmulADSkkYk5SQdO+c+QwmAZkkTktolXTjnbkLiDJCniHsgFdCnTFNAHliuJE6bYANoAYaBF+AwYHBkmiGgFdi0HINR4lmrotXjVoG3gMEbsOLN2yzHTIFr8PRZG3s9rs/jo5At0fd6fFk1TfY/X4A14MyqmQrsYNo0pxbzCtwBTZUCUsAh8GHCKaDspnl6ZyZ3FnMA9AR2/BOYBzJVhUV9BshHrTVEkZKeJPXHNZA0IOkxttrrhzkgGdAlgXnTLv3GIAHsEh87QGNUrooHaEajkoYlFXYxaeO2je+SLp1z57Grr2J4DvwqWaVDrhv+3SAWrMvXgWcgZ10b3a01GuwDX8CWfV/AXr2Sd9lVXPC4ReM6q8XHOYMOG2897rZkrXZY0+WAK6DHHsRr4xJ/NjCTcXstC/gAxuPEBju5xKRb0phNT5xzD7UUW3d8A4p92DZKdSwEAAAAAElFTkSuQmCC",
+      "mimeType": "image/png",
+      "sizes": [
+        "24x24"
+      ],
+      "theme": "dark"
+    }
+  ]
 }

pkg/github/__toolsnaps__/merge_pull_request.snap

@@ -42,5 +42,23 @@
       }
     }
   },
-  "name": "merge_pull_request"
+  "name": "merge_pull_request",
+  "icons": [
+    {
+      "src": "data:image/png;base64,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",
+      "mimeType": "image/png",
+      "sizes": [
+        "24x24"
+      ],
+      "theme": "light"
+    },
+    {
+      "src": "data:image/png;base64,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",
+      "mimeType": "image/png",
+      "sizes": [
+        "24x24"
+      ],
+      "theme": "dark"
+    }
+  ]
 }

pkg/github/__toolsnaps__/request_copilot_review.snap

@@ -25,5 +25,23 @@
       }
     }
   },
-  "name": "request_copilot_review"
+  "name": "request_copilot_review",
+  "icons": [
+    {
+      "src": "data:image/png;base64,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",
+      "mimeType": "image/png",
+      "sizes": [
+        "24x24"
+      ],
+      "theme": "light"
+    },
+    {
+      "src": "data:image/png;base64,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",
+      "mimeType": "image/png",
+      "sizes": [
+        "24x24"
+      ],
+      "theme": "dark"
+    }
+  ]
 }

pkg/github/__toolsnaps__/star_repository.snap

@@ -20,5 +20,23 @@
       }
     }
   },
-  "name": "star_repository"
+  "name": "star_repository",
+  "icons": [
+    {
+      "src": "data:image/png;base64,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",
+      "mimeType": "image/png",
+      "sizes": [
+        "24x24"
+      ],
+      "theme": "light"
+    },
+    {
+      "src": "data:image/png;base64,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",
+      "mimeType": "image/png",
+      "sizes": [
+        "24x24"
+      ],
+      "theme": "dark"
+    }
+  ]
 }

pkg/github/issues.go

@@ -12,6 +12,7 @@ import (
 	ghErrors "github.com/github/github-mcp-server/pkg/errors"
 	"github.com/github/github-mcp-server/pkg/inventory"
 	"github.com/github/github-mcp-server/pkg/lockdown"
+	"github.com/github/github-mcp-server/pkg/octicons"
 	"github.com/github/github-mcp-server/pkg/sanitize"
 	"github.com/github/github-mcp-server/pkg/translations"
 	"github.com/github/github-mcp-server/pkg/utils"
@@ -1622,6 +1623,7 @@ func AssignCopilotToIssue(t translations.TranslationHelperFunc) inventory.Server
 		mcp.Tool{
 			Name:        "assign_copilot_to_issue",
 			Description: t("TOOL_ASSIGN_COPILOT_TO_ISSUE_DESCRIPTION", description.String()),
+			Icons:       octicons.Icons("copilot"),
 			Annotations: &mcp.ToolAnnotations{
 				Title:          t("TOOL_ASSIGN_COPILOT_TO_ISSUE_USER_TITLE", "Assign Copilot to issue"),
 				ReadOnlyHint:   false,

pkg/github/pullrequests.go

@@ -16,6 +16,7 @@ import (
 	ghErrors "github.com/github/github-mcp-server/pkg/errors"
 	"github.com/github/github-mcp-server/pkg/inventory"
 	"github.com/github/github-mcp-server/pkg/lockdown"
+	"github.com/github/github-mcp-server/pkg/octicons"
 	"github.com/github/github-mcp-server/pkg/sanitize"
 	"github.com/github/github-mcp-server/pkg/translations"
 	"github.com/github/github-mcp-server/pkg/utils"
@@ -1086,6 +1087,7 @@ func MergePullRequest(t translations.TranslationHelperFunc) inventory.ServerTool
 		mcp.Tool{
 			Name:        "merge_pull_request",
 			Description: t("TOOL_MERGE_PULL_REQUEST_DESCRIPTION", "Merge a pull request in a GitHub repository."),
+			Icons:       octicons.Icons("git-merge"),
 			Annotations: &mcp.ToolAnnotations{
 				Title:        t("TOOL_MERGE_PULL_REQUEST_USER_TITLE", "Merge pull request"),
 				ReadOnlyHint: false,
@@ -1855,6 +1857,7 @@ func RequestCopilotReview(t translations.TranslationHelperFunc) inventory.Server
 		mcp.Tool{
 			Name:        "request_copilot_review",
 			Description: t("TOOL_REQUEST_COPILOT_REVIEW_DESCRIPTION", "Request a GitHub Copilot code review for a pull request. Use this for automated feedback on pull requests, usually before requesting a human reviewer."),
+			Icons:       octicons.Icons("copilot"),
 			Annotations: &mcp.ToolAnnotations{
 				Title:        t("TOOL_REQUEST_COPILOT_REVIEW_USER_TITLE", "Request Copilot review"),
 				ReadOnlyHint: false,