feat: add skillDirectories and disabledSkills to all SDKs

Expose skill configuration options from CLI server to SDK clients:
- skillDirectories: directories to load skills from
- disabledSkills: list of skill names to disable

Updated SDKs:
- Node.js: SessionConfig, ResumeSessionConfig types and client
- Go: SessionConfig, ResumeSessionConfig structs and client
- .NET: SessionConfig, ResumeSessionConfig classes and client
- Python: SessionConfig, ResumeSessionConfig TypedDicts and client

Author: friggeri

dotnet/src/Client.cs

@@ -344,7 +344,9 @@ public async Task<CopilotSession> CreateSessionAsync(SessionConfig? config = nul
             config?.Streaming == true ? true : null,
             config?.McpServers,
             config?.CustomAgents,
-            config?.ConfigDir);
+            config?.ConfigDir,
+            config?.SkillDirectories,
+            config?.DisabledSkills);
 
         var response = await connection.Rpc.InvokeWithCancellationAsync<CreateSessionResponse>(
             "session.create", [request], cancellationToken);
@@ -399,7 +401,9 @@ public async Task<CopilotSession> ResumeSessionAsync(string sessionId, ResumeSes
             config?.OnPermissionRequest != null ? true : null,
             config?.Streaming == true ? true : null,
             config?.McpServers,
-            config?.CustomAgents);
+            config?.CustomAgents,
+            config?.SkillDirectories,
+            config?.DisabledSkills);
 
         var response = await connection.Rpc.InvokeWithCancellationAsync<ResumeSessionResponse>(
             "session.resume", [request], cancellationToken);
@@ -927,7 +931,9 @@ private record CreateSessionRequest(
         bool? Streaming,
         Dictionary<string, object>? McpServers,
         List<CustomAgentConfig>? CustomAgents,
-        string? ConfigDir);
+        string? ConfigDir,
+        List<string>? SkillDirectories,
+        List<string>? DisabledSkills);
 
     private record ToolDefinition(
         string Name,
@@ -948,7 +954,9 @@ private record ResumeSessionRequest(
         bool? RequestPermission,
         bool? Streaming,
         Dictionary<string, object>? McpServers,
-        List<CustomAgentConfig>? CustomAgents);
+        List<CustomAgentConfig>? CustomAgents,
+        List<string>? SkillDirectories,
+        List<string>? DisabledSkills);
 
     private record ResumeSessionResponse(
         string SessionId);

dotnet/src/Types.cs

@@ -329,6 +329,16 @@ public class SessionConfig
     /// Custom agent configurations for the session.
     /// </summary>
     public List<CustomAgentConfig>? CustomAgents { get; set; }
+
+    /// <summary>
+    /// Directories to load skills from.
+    /// </summary>
+    public List<string>? SkillDirectories { get; set; }
+
+    /// <summary>
+    /// List of skill names to disable.
+    /// </summary>
+    public List<string>? DisabledSkills { get; set; }
 }
 
 public class ResumeSessionConfig
@@ -359,6 +369,16 @@ public class ResumeSessionConfig
     /// Custom agent configurations for the session.
     /// </summary>
     public List<CustomAgentConfig>? CustomAgents { get; set; }
+
+    /// <summary>
+    /// Directories to load skills from.
+    /// </summary>
+    public List<string>? SkillDirectories { get; set; }
+
+    /// <summary>
+    /// List of skill names to disable.
+    /// </summary>
+    public List<string>? DisabledSkills { get; set; }
 }
 
 public class MessageOptions

go/client.go

@@ -536,6 +536,14 @@ func (c *Client) CreateSession(config *SessionConfig) (*Session, error) {
 		if config.ConfigDir != "" {
 			params["configDir"] = config.ConfigDir
 		}
+		// Add skill directories configuration
+		if len(config.SkillDirectories) > 0 {
+			params["skillDirectories"] = config.SkillDirectories
+		}
+		// Add disabled skills configuration
+		if len(config.DisabledSkills) > 0 {
+			params["disabledSkills"] = config.DisabledSkills
+		}
 	}
 
 	result, err := c.client.Request("session.create", params)
@@ -664,6 +672,14 @@ func (c *Client) ResumeSessionWithOptions(sessionID string, config *ResumeSessio
 			}
 			params["customAgents"] = customAgents
 		}
+		// Add skill directories configuration
+		if len(config.SkillDirectories) > 0 {
+			params["skillDirectories"] = config.SkillDirectories
+		}
+		// Add disabled skills configuration
+		if len(config.DisabledSkills) > 0 {
+			params["disabledSkills"] = config.DisabledSkills
+		}
 	}
 
 	result, err := c.client.Request("session.resume", params)

go/types.go

@@ -163,6 +163,10 @@ type SessionConfig struct {
 	MCPServers map[string]MCPServerConfig
 	// CustomAgents configures custom agents for the session
 	CustomAgents []CustomAgentConfig
+	// SkillDirectories is a list of directories to load skills from
+	SkillDirectories []string
+	// DisabledSkills is a list of skill names to disable
+	DisabledSkills []string
 }
 
 // Tool describes a caller-implemented tool that can be invoked by Copilot
@@ -211,6 +215,10 @@ type ResumeSessionConfig struct {
 	MCPServers map[string]MCPServerConfig
 	// CustomAgents configures custom agents for the session
 	CustomAgents []CustomAgentConfig
+	// SkillDirectories is a list of directories to load skills from
+	SkillDirectories []string
+	// DisabledSkills is a list of skill names to disable
+	DisabledSkills []string
 }
 
 // ProviderConfig configures a custom model provider

justfile

@@ -45,8 +45,6 @@ lint-python:
 lint-nodejs:
     @echo "=== Linting Node.js code ==="
     @cd nodejs && npm run format:check && npm run lint && npm run typecheck
-    @echo "=== Linting Playground ==="
-    @cd demos/playground && npm run format:check && npm run lint && npm run typecheck
 
 # Lint .NET code
 lint-dotnet:

nodejs/package-lock.json

@@ -40,7 +40,7 @@
   "author": "GitHub",
   "license": "MIT",
   "dependencies": {
-    "@github/copilot": "^0.0.387",
+    "@github/copilot": "^0.0.388-1",
     "vscode-jsonrpc": "^8.2.1",
     "zod": "^4.3.5"
   },

nodejs/package.json

@@ -447,6 +447,8 @@ export class CopilotClient {
             mcpServers: config.mcpServers,
             customAgents: config.customAgents,
             configDir: config.configDir,
+            skillDirectories: config.skillDirectories,
+            disabledSkills: config.disabledSkills,
         });
 
         const sessionId = (response as { sessionId: string }).sessionId;
@@ -507,6 +509,8 @@ export class CopilotClient {
             streaming: config.streaming,
             mcpServers: config.mcpServers,
             customAgents: config.customAgents,
+            skillDirectories: config.skillDirectories,
+            disabledSkills: config.disabledSkills,
         });
 
         const resumedSessionId = (response as { sessionId: string }).sessionId;

nodejs/src/client.ts

@@ -384,14 +384,31 @@ export interface SessionConfig {
      * Custom agent configurations for the session.
      */
     customAgents?: CustomAgentConfig[];
+
+    /**
+     * Directories to load skills from.
+     */
+    skillDirectories?: string[];
+
+    /**
+     * List of skill names to disable.
+     */
+    disabledSkills?: string[];
 }
 
 /**
  * Configuration for resuming a session
  */
 export type ResumeSessionConfig = Pick<
     SessionConfig,
-    "tools" | "provider" | "streaming" | "onPermissionRequest" | "mcpServers" | "customAgents"
+    | "tools"
+    | "provider"
+    | "streaming"
+    | "onPermissionRequest"
+    | "mcpServers"
+    | "customAgents"
+    | "skillDirectories"
+    | "disabledSkills"
 >;
 
 /**

nodejs/src/types.ts

@@ -405,6 +405,16 @@ async def create_session(self, config: Optional[SessionConfig] = None) -> Copilo
         if config_dir:
             payload["configDir"] = config_dir
 
+        # Add skill directories configuration if provided
+        skill_directories = cfg.get("skill_directories")
+        if skill_directories:
+            payload["skillDirectories"] = skill_directories
+
+        # Add disabled skills configuration if provided
+        disabled_skills = cfg.get("disabled_skills")
+        if disabled_skills:
+            payload["disabledSkills"] = disabled_skills
+
         if not self._client:
             raise RuntimeError("Client not connected")
         response = await self._client.request("session.create", payload)
@@ -498,6 +508,16 @@ async def resume_session(
                 self._convert_custom_agent_to_wire_format(agent) for agent in custom_agents
             ]
 
+        # Add skill directories configuration if provided
+        skill_directories = cfg.get("skill_directories")
+        if skill_directories:
+            payload["skillDirectories"] = skill_directories
+
+        # Add disabled skills configuration if provided
+        disabled_skills = cfg.get("disabled_skills")
+        if disabled_skills:
+            payload["disabledSkills"] = disabled_skills
+
         if not self._client:
             raise RuntimeError("Client not connected")
         response = await self._client.request("session.resume", payload)