Optimize get_file_contents: eliminate raw API call

README.md

@@ -1093,7 +1093,8 @@ Possible options:
 - **get_file_contents** - Get file or directory contents
   - `owner`: Repository owner (username or organization) (string, required)
   - `path`: Path to file/directory (string, optional)
-  - `ref`: Accepts optional git refs such as `refs/tags/{tag}`, `refs/heads/{branch}` or `refs/pull/{pr_number}/head` (string, optional)
+  - `raw_content`: If true, returns file content as plain text (for text files) or base64-encoded (for binary files) instead of embedded resource format. Useful for clients that don't support embedded resources. (boolean, optional)
+  - `ref`: Accepts optional git refs such as refs/tags/{tag}, refs/heads/{branch} or refs/pull/{pr_number}/head (string, optional)
   - `repo`: Repository name (string, required)
   - `sha`: Accepts optional commit SHA. If specified, it will be used instead of ref (string, optional)
 

docs/remote-server.md

@@ -19,7 +19,7 @@ Below is a table of available toolsets for the remote GitHub MCP Server. Each to
 <!-- START AUTOMATED TOOLSETS -->
 | Name           | Description                                      | API URL                                               | 1-Click Install (VS Code)                                                                                                                                                                                                 | Read-only Link                                                                                                 | 1-Click Read-only Install (VS Code)                                                                                                                                                                                                 |
 |----------------|--------------------------------------------------|-------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
-| Default            | ["Default" toolset](../README.md#default-toolset)                | https://api.githubcopilot.com/mcp/                    | [Install](https://insiders.vscode.dev/redirect/mcp/install?name=github&config=%7B%22type%22%3A%20%22http%22%2C%22url%22%3A%20%22https%3A%2F%2Fapi.githubcopilot.com%2Fmcp%2F%22%7D)                                      | [read-only](https://api.githubcopilot.com/mcp/readonly)                                                      | [Install read-only](https://insiders.vscode.dev/redirect/mcp/install?name=github&config=%7B%22type%22%3A%20%22http%22%2C%22url%22%3A%20%22https%3A%2F%2Fapi.githubcopilot.com%2Fmcp%2Freadonly%22%7D) |
+| all            | All available GitHub MCP tools                    | https://api.githubcopilot.com/mcp/                    | [Install](https://insiders.vscode.dev/redirect/mcp/install?name=github&config=%7B%22type%22%3A%20%22http%22%2C%22url%22%3A%20%22https%3A%2F%2Fapi.githubcopilot.com%2Fmcp%2F%22%7D)                                      | [read-only](https://api.githubcopilot.com/mcp/readonly)                                                      | [Install read-only](https://insiders.vscode.dev/redirect/mcp/install?name=github&config=%7B%22type%22%3A%20%22http%22%2C%22url%22%3A%20%22https%3A%2F%2Fapi.githubcopilot.com%2Fmcp%2Freadonly%22%7D) |
 | Actions        | GitHub Actions workflows and CI/CD operations    | https://api.githubcopilot.com/mcp/x/actions           | [Install](https://insiders.vscode.dev/redirect/mcp/install?name=gh-actions&config=%7B%22type%22%3A%20%22http%22%2C%22url%22%3A%20%22https%3A%2F%2Fapi.githubcopilot.com%2Fmcp%2Fx%2Factions%22%7D)                         | [read-only](https://api.githubcopilot.com/mcp/x/actions/readonly)                                              | [Install read-only](https://insiders.vscode.dev/redirect/mcp/install?name=gh-actions&config=%7B%22type%22%3A%20%22http%22%2C%22url%22%3A%20%22https%3A%2F%2Fapi.githubcopilot.com%2Fmcp%2Fx%2Factions%2Freadonly%22%7D)                                                                          |
 | Code Security  | Code security related tools, such as GitHub Code Scanning | https://api.githubcopilot.com/mcp/x/code_security     | [Install](https://insiders.vscode.dev/redirect/mcp/install?name=gh-code_security&config=%7B%22type%22%3A%20%22http%22%2C%22url%22%3A%20%22https%3A%2F%2Fapi.githubcopilot.com%2Fmcp%2Fx%2Fcode_security%22%7D)             | [read-only](https://api.githubcopilot.com/mcp/x/code_security/readonly)                                        | [Install read-only](https://insiders.vscode.dev/redirect/mcp/install?name=gh-code_security&config=%7B%22type%22%3A%20%22http%22%2C%22url%22%3A%20%22https%3A%2F%2Fapi.githubcopilot.com%2Fmcp%2Fx%2Fcode_security%2Freadonly%22%7D)                                                              |
 | Dependabot     | Dependabot tools                                 | https://api.githubcopilot.com/mcp/x/dependabot        | [Install](https://insiders.vscode.dev/redirect/mcp/install?name=gh-dependabot&config=%7B%22type%22%3A%20%22http%22%2C%22url%22%3A%20%22https%3A%2F%2Fapi.githubcopilot.com%2Fmcp%2Fx%2Fdependabot%22%7D)                   | [read-only](https://api.githubcopilot.com/mcp/x/dependabot/readonly)                                           | [Install read-only](https://insiders.vscode.dev/redirect/mcp/install?name=gh-dependabot&config=%7B%22type%22%3A%20%22http%22%2C%22url%22%3A%20%22https%3A%2F%2Fapi.githubcopilot.com%2Fmcp%2Fx%2Fdependabot%2Freadonly%22%7D)                                                                    |

go.mod

@@ -16,6 +16,7 @@ require (
 
 require (
 	github.com/aymerick/douceur v0.2.0 // indirect
+	github.com/gabriel-vasile/mimetype v1.4.11 // indirect
 	github.com/go-openapi/jsonpointer v0.19.5 // indirect
 	github.com/go-openapi/swag v0.21.1 // indirect
 	github.com/google/go-github/v71 v71.0.0 // indirect

go.sum

@@ -10,6 +10,8 @@ github.com/frankban/quicktest v1.14.6 h1:7Xjx+VpznH+oBnejlPUj8oUpdxnVs4f8XU8WnHk
 github.com/frankban/quicktest v1.14.6/go.mod h1:4ptaffx2x8+WTWXmUCuVU6aPUX1/Mz7zb5vbUoiM6w0=
 github.com/fsnotify/fsnotify v1.9.0 h1:2Ml+OJNzbYCTzsxtv8vKSFD9PbJjmhYF14k/jKC7S9k=
 github.com/fsnotify/fsnotify v1.9.0/go.mod h1:8jBTzvmWwFyi3Pb8djgCCO5IBqzKJ/Jwo8TRcHyHii0=
+github.com/gabriel-vasile/mimetype v1.4.11 h1:AQvxbp830wPhHTqc1u7nzoLT+ZFxGY7emj5DR5DYFik=
+github.com/gabriel-vasile/mimetype v1.4.11/go.mod h1:d+9Oxyo1wTzWdyVUPMmXFvp4F9tea18J8ufA774AB3s=
 github.com/go-openapi/jsonpointer v0.19.5 h1:gZr+CIYByUqjcgeLXnQu2gHYQC9o73G2XUeOFYEICuY=
 github.com/go-openapi/jsonpointer v0.19.5/go.mod h1:Pl9vOtqEWErmShwVjC8pYs9cog34VGT37dQOVbmoatg=
 github.com/go-openapi/swag v0.19.5/go.mod h1:POnQmlKehdgb5mhVOsnJFsivZCEZ/vjK9gh66Z9tfKk=

pkg/github/__toolsnaps__/get_file_contents.snap

@@ -20,9 +20,13 @@
         "description": "Path to file/directory",
         "default": "/"
       },
+      "raw_content": {
+        "type": "boolean",
+        "description": "If true, returns file content as plain text (for text files) or base64-encoded (for binary files) instead of embedded resource format. Useful for clients that don't support embedded resources."
+      },
       "ref": {
         "type": "string",
-        "description": "Accepts optional git refs such as `refs/tags/{tag}`, `refs/heads/{branch}` or `refs/pull/{pr_number}/head`"
+        "description": "Accepts optional git refs such as refs/tags/{tag}, refs/heads/{branch} or refs/pull/{pr_number}/head"
       },
       "repo": {
         "type": "string",

pkg/github/mimetype.go

@@ -0,0 +1,229 @@
+package github
+
+import (
+	"path"
+	"strings"
+
+	"github.com/gabriel-vasile/mimetype"
+)
+
+// codeExtensionMimeTypes maps common code file extensions to MIME types.
+// This is needed because Go's stdlib mime.TypeByExtension has gaps and wrong mappings
+// for many code-related extensions (e.g., .ts returns Qt Linguist, .tsx returns nothing).
+var codeExtensionMimeTypes = map[string]string{
+	// JavaScript/TypeScript
+	".ts":     "text/typescript",
+	".tsx":    "text/typescript-jsx",
+	".mts":    "text/typescript",
+	".cts":    "text/typescript",
+	".js":     "text/javascript",
+	".jsx":    "text/javascript-jsx",
+	".mjs":    "text/javascript",
+	".cjs":    "text/javascript",
+	".vue":    "text/x-vue",
+	".svelte": "text/x-svelte",
+
+	// Go
+	".go":   "text/x-go",
+	".mod":  "text/x-go-mod",
+	".sum":  "text/x-go-sum",
+	".work": "text/x-go-work",
+
+	// Rust
+	".rs":   "text/x-rust",
+	".toml": "text/x-toml",
+
+	// Python
+	".py":  "text/x-python",
+	".pyi": "text/x-python",
+	".pyx": "text/x-cython",
+	".pxd": "text/x-cython",
+
+	// Ruby
+	".rb":      "text/x-ruby",
+	".rake":    "text/x-ruby",
+	".gemspec": "text/x-ruby",
+	".erb":     "text/x-erb",
+
+	// Java/Kotlin/Scala
+	".java":   "text/x-java-source",
+	".kt":     "text/x-kotlin",
+	".kts":    "text/x-kotlin",
+	".scala":  "text/x-scala",
+	".groovy": "text/x-groovy",
+
+	// C family
+	".c":   "text/x-c",
+	".h":   "text/x-c",
+	".cpp": "text/x-c++",
+	".cc":  "text/x-c++",
+	".cxx": "text/x-c++",
+	".hpp": "text/x-c++",
+	".hh":  "text/x-c++",
+	".hxx": "text/x-c++",
+	".m":   "text/x-objective-c",
+	".mm":  "text/x-objective-c++",
+
+	// C#/F#
+	".cs": "text/x-csharp",
+	".fs": "text/x-fsharp",
+
+	// Swift
+	".swift": "text/x-swift",
+
+	// PHP
+	".php":   "text/x-php",
+	".phtml": "text/x-php",
+
+	// Shell scripts
+	".sh":   "text/x-shellscript",
+	".bash": "text/x-shellscript",
+	".zsh":  "text/x-shellscript",
+	".fish": "text/x-shellscript",
+
+	// Config/Data files
+	".json": "application/json",
+	".yml":  "text/yaml",
+	".yaml": "text/yaml",
+	".xml":  "text/xml",
+	".ini":  "text/x-ini",
+	".cfg":  "text/x-ini",
+	".conf": "text/plain",
+	".env":  "text/plain",
+
+	// Markup/Documentation
+	".md":       "text/markdown",
+	".markdown": "text/markdown",
+	".rst":      "text/x-rst",
+	".adoc":     "text/asciidoc",
+	".tex":      "text/x-tex",
+
+	// Web
+	".html": "text/html",
+	".htm":  "text/html",
+	".css":  "text/css",
+	".scss": "text/x-scss",
+	".sass": "text/x-sass",
+	".less": "text/x-less",
+
+	// SQL
+	".sql": "text/x-sql",
+
+	// Other languages
+	".lua":  "text/x-lua",
+	".r":    "text/x-r",
+	".R":    "text/x-r",
+	".jl":   "text/x-julia",
+	".ex":   "text/x-elixir",
+	".exs":  "text/x-elixir",
+	".erl":  "text/x-erlang",
+	".hrl":  "text/x-erlang",
+	".clj":  "text/x-clojure",
+	".cljs": "text/x-clojure",
+	".cljc": "text/x-clojure",
+	".hs":   "text/x-haskell",
+	".lhs":  "text/x-haskell",
+	".ml":   "text/x-ocaml",
+	".mli":  "text/x-ocaml",
+	".nim":  "text/x-nim",
+	".dart": "text/x-dart",
+	".v":    "text/x-v",
+	".zig":  "text/x-zig",
+
+	// Build/Config files
+	".dockerfile": "text/x-dockerfile",
+	".makefile":   "text/x-makefile",
+
+	// Special files
+	".gitignore":    "text/plain",
+	".dockerignore": "text/plain",
+	".editorconfig": "text/plain",
+}
+
+// isTextMIME returns true if the MIME type indicates text content.
+func isTextMIME(mimeType string) bool {
+	if strings.HasPrefix(mimeType, "text/") {
+		return true
+	}
+	// Common application/* types that are actually text
+	textApplicationTypes := []string{
+		"application/json",
+		"application/xml",
+		"application/javascript",
+		"application/typescript",
+		"application/x-sh",
+		"application/x-shellscript",
+	}
+	for _, t := range textApplicationTypes {
+		if mimeType == t {
+			return true
+		}
+	}
+	// Types with +json, +xml suffix are text
+	if strings.HasSuffix(mimeType, "+json") || strings.HasSuffix(mimeType, "+xml") {
+		return true
+	}
+	return false
+}
+
+// inferContentType infers the content type from file extension and optionally content.
+// Returns the inferred MIME type and whether it's a text file.
+func inferContentType(filePath string, content []byte) (mimeType string, isText bool) {
+	ext := strings.ToLower(path.Ext(filePath))
+
+	// Handle special filenames (Dockerfile, Makefile, etc.)
+	baseName := strings.ToLower(path.Base(filePath))
+	if ext == "" {
+		switch baseName {
+		case "dockerfile":
+			return "text/x-dockerfile", true
+		case "makefile", "gnumakefile":
+			return "text/x-makefile", true
+		case "rakefile":
+			return "text/x-ruby", true
+		case "gemfile":
+			return "text/x-ruby", true
+		case "vagrantfile":
+			return "text/x-ruby", true
+		case "procfile":
+			return "text/plain", true
+		case "readme", "license", "authors", "changelog", "contributing":
+			return "text/plain", true
+		}
+	}
+
+	// Check our extension map first (more accurate for code files)
+	if mtype, ok := codeExtensionMimeTypes[ext]; ok {
+		return mtype, isTextMIME(mtype)
+	}
+
+	// If we have content, use mimetype library for accurate detection
+	if len(content) > 0 {
+		mtype := mimetype.Detect(content)
+		return mtype.String(), isTextMIME(mtype.String())
+	}
+
+	// Fall back to extension-only detection using mimetype library
+	return inferContentTypeFromExtension(ext)
+}
+
+// inferContentTypeFromExtension infers MIME type from extension only.
+// Used when we don't have file content available.
+func inferContentTypeFromExtension(ext string) (mimeType string, isText bool) {
+	ext = strings.ToLower(ext)
+
+	// Check our extension map first
+	if mtype, ok := codeExtensionMimeTypes[ext]; ok {
+		return mtype, isTextMIME(mtype)
+	}
+
+	// Use mimetype library for other extensions
+	// mimetype.Lookup returns the MIME type for a given extension
+	mtype := mimetype.Lookup(ext)
+	if mtype != nil {
+		return mtype.String(), isTextMIME(mtype.String())
+	}
+
+	// Default to binary for unknown types
+	return "application/octet-stream", false
+}