Update pkg/github/projects.go

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: JoannaaKL

pkg/github/projects.go

@@ -565,7 +565,7 @@ func DeleteProjectItem(getClient GetClientFn, t translations.TranslationHelperFu
 			mcp.WithString("owner_type", mcp.Required(), mcp.Description("Owner type"), mcp.Enum("user", "org")),
 			mcp.WithString("owner", mcp.Required(), mcp.Description("If owner_type == user it is the handle for the GitHub user account. If owner_type == org it is the name of the organization. The name is not case sensitive.")),
 			mcp.WithNumber("project_number", mcp.Required(), mcp.Description("The project's number.")),
-			mcp.WithNumber("item_id", mcp.Required(), mcp.Description("The numeric ID of the issue or pull request to delete from the project.")),
+			mcp.WithNumber("item_id", mcp.Required(), mcp.Description("The internal project item ID to delete from the project (not the issue or pull request ID).")),
 		), func(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
 			owner, err := RequiredParam[string](req, "owner")
 			if err != nil {