feat(org): add MCP tools for organization-level labels (list/create/edit/delete) (#99) (#102)

This PR adds full support for managing organization-level labels via MCP. It uses the newly added SDK APIs now available on main branch, see https://gitea.com/gitea/go-sdk/issues/732.

Registers following tools under label module and wires them into the MCP server as read/write tools:

- list_org_labels: list labels defined at the organization level (pagination supported)
- create_org_label: create a label in an organization (name, color, description, exclusive)
- edit_org_label: edit an organization label (name, color, description, exclusive)
- delete_org_label: delete an organization label by ID

Dependency note:
go.mod/go.sum updated to use the SDK main branch pseudo-version that includes the org-label APIs.

If you prefer to merge only after a tagged SDK release, I can bump the dependency to the new tag as soon as it’s available.

Thanks for considering!

Reviewed-on: https://gitea.com/gitea/gitea-mcp/pulls/102
Reviewed-by: Bo-Yi Wu (吳柏毅) <appleboy.tw@gmail.com>
Co-authored-by: Daniel <danielwichers@gmail.com>
Co-committed-by: Daniel <danielwichers@gmail.com>

README.md

@@ -201,6 +201,10 @@ The Gitea MCP Server supports the following tools:
 |     create_pull_request      | Pull Request |                Create a new pull request                 |
 |         search_users         |     User     |                     Search for users                     |
 |       search_org_teams       | Organization |           Search for teams in an organization            |
+|        list_org_labels       | Organization |            List labels defined at organization level     |
+|        create_org_label      | Organization |                  Create a label in an organization       |
+|         edit_org_label       | Organization |                  Edit a label in an organization         |
+|       delete_org_label       | Organization |                 Delete a label in an organization        |
 |         search_repos         |  Repository  |                 Search for repositories                  |
 | get_gitea_mcp_server_version |    Server    |         Get the version of the Gitea MCP Server          |
 |       list_wiki_pages        |     Wiki     |          List all wiki pages in a repository            |

go.mod

@@ -3,7 +3,7 @@ module gitea.com/gitea/gitea-mcp
 go 1.24.0
 
 require (
-	code.gitea.io/sdk/gitea v0.22.0
+	code.gitea.io/sdk/gitea v0.22.1-0.20251016220613-060554f46291
 	github.com/mark3labs/mcp-go v0.40.0
 	go.uber.org/zap v1.27.0
 	gopkg.in/natefinch/lumberjack.v2 v2.2.1

go.sum

@@ -1,5 +1,5 @@
-code.gitea.io/sdk/gitea v0.22.0 h1:HCKq7bX/HQ85Nw7c/HAhWgRye+vBp5nQOE8Md1+9Ef0=
+code.gitea.io/sdk/gitea v0.22.1-0.20251016220613-060554f46291 h1:oVIBPpbLraXywuuapimBbI3uMRGF0qJP3wjU2vb2bU4=
-code.gitea.io/sdk/gitea v0.22.0/go.mod h1:yyF5+GhljqvA30sRDreoyHILruNiy4ASufugzYg0VHM=
+code.gitea.io/sdk/gitea v0.22.1-0.20251016220613-060554f46291/go.mod h1:yyF5+GhljqvA30sRDreoyHILruNiy4ASufugzYg0VHM=
 github.com/42wim/httpsig v1.2.3 h1:xb0YyWhkYj57SPtfSttIobJUPJZB9as1nsfo7KWVcEs=
 github.com/42wim/httpsig v1.2.3/go.mod h1:nZq9OlYKDrUBhptd77IHx4/sZZD+IxTBADvAPI9G/EM=
 github.com/bahlo/generic-list-go v0.2.0 h1:5sz/EEAK+ls5wF+NeqDpk5+iNdMDXrh3z3nPnH1Wvgk=

operation/label/label.go

@@ -27,6 +27,10 @@ const (
 	ReplaceIssueLabelsToolName = "replace_issue_labels"
 	ClearIssueLabelsToolName   = "clear_issue_labels"
 	RemoveIssueLabelToolName   = "remove_issue_label"
+    ListOrgLabelsToolName      = "list_org_labels"
+    CreateOrgLabelToolName     = "create_org_label"
+    EditOrgLabelToolName       = "edit_org_label"
+    DeleteOrgLabelToolName     = "delete_org_label"
 )
 
 var (
@@ -110,6 +114,43 @@ var (
 		mcp.WithNumber("index", mcp.Required(), mcp.Description("issue index")),
 		mcp.WithNumber("label_id", mcp.Required(), mcp.Description("label ID to remove")),
 	)
+
+    ListOrgLabelsTool = mcp.NewTool(
+        ListOrgLabelsToolName,
+        mcp.WithDescription("Lists labels defined at organization level"),
+        mcp.WithString("org", mcp.Required(), mcp.Description("organization name")),
+        mcp.WithNumber("page", mcp.Description("page number"), mcp.DefaultNumber(1)),
+        mcp.WithNumber("pageSize", mcp.Description("page size"), mcp.DefaultNumber(100)),
+    )
+
+    CreateOrgLabelTool = mcp.NewTool(
+        CreateOrgLabelToolName,
+        mcp.WithDescription("Creates a new label for an organization"),
+        mcp.WithString("org", mcp.Required(), mcp.Description("organization name")),
+        mcp.WithString("name", mcp.Required(), mcp.Description("label name")),
+        mcp.WithString("color", mcp.Required(), mcp.Description("label color (hex code, e.g., #RRGGBB)")),
+        mcp.WithString("description", mcp.Description("label description")),
+        mcp.WithBoolean("exclusive", mcp.Description("whether the label is exclusive"), mcp.DefaultBool(false)),
+    )
+
+    EditOrgLabelTool = mcp.NewTool(
+        EditOrgLabelToolName,
+        mcp.WithDescription("Edits an existing organization label"),
+        mcp.WithString("org", mcp.Required(), mcp.Description("organization name")),
+        mcp.WithNumber("id", mcp.Required(), mcp.Description("label ID")),
+        mcp.WithString("name", mcp.Description("new label name")),
+        mcp.WithString("color", mcp.Description("new label color (hex code, e.g., #RRGGBB)")),
+        mcp.WithString("description", mcp.Description("new label description")),
+        mcp.WithBoolean("exclusive", mcp.Description("whether the label is exclusive")),
+    )
+
+    DeleteOrgLabelTool = mcp.NewTool(
+        DeleteOrgLabelToolName,
+        mcp.WithDescription("Deletes an organization label by ID"),
+        mcp.WithString("org", mcp.Required(), mcp.Description("organization name")),
+        mcp.WithNumber("id", mcp.Required(), mcp.Description("label ID")),
+    )
+
 )
 
 func init() {
@@ -149,6 +190,22 @@ func init() {
 		Tool:    RemoveIssueLabelTool,
 		Handler: RemoveIssueLabelFn,
 	})
+    Tool.RegisterRead(server.ServerTool{
+        Tool:    ListOrgLabelsTool,
+        Handler: ListOrgLabelsFn,
+    })
+    Tool.RegisterWrite(server.ServerTool{
+        Tool:    CreateOrgLabelTool,
+        Handler: CreateOrgLabelFn,
+    })
+    Tool.RegisterWrite(server.ServerTool{
+        Tool:    EditOrgLabelTool,
+        Handler: EditOrgLabelFn,
+    })
+    Tool.RegisterWrite(server.ServerTool{
+        Tool:    DeleteOrgLabelTool,
+        Handler: DeleteOrgLabelFn,
+    })
 }
 
 func ListRepoLabelsFn(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
@@ -452,3 +509,128 @@ func RemoveIssueLabelFn(ctx context.Context, req mcp.CallToolRequest) (*mcp.Call
 	}
 	return to.TextResult("Label removed successfully")
 }
+
+func ListOrgLabelsFn(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
+    log.Debugf("Called ListOrgLabelsFn")
+    org, ok := req.GetArguments()["org"].(string)
+    if !ok {
+        return to.ErrorResult(fmt.Errorf("org is required"))
+    }
+    page, ok := req.GetArguments()["page"].(float64)
+    if !ok {
+        page = 1
+    }
+    pageSize, ok := req.GetArguments()["pageSize"].(float64)
+    if !ok {
+        pageSize = 100
+    }
+
+    opt := gitea_sdk.ListOrgLabelsOptions{
+        ListOptions: gitea_sdk.ListOptions{
+            Page:     int(page),
+            PageSize: int(pageSize),
+        },
+    }
+    client, err := gitea.ClientFromContext(ctx)
+    if err != nil {
+        return to.ErrorResult(fmt.Errorf("get gitea client err: %v", err))
+    }
+    labels, _, err := client.ListOrgLabels(org, opt)
+    if err != nil {
+        return to.ErrorResult(fmt.Errorf("list %v/labels err: %v", org, err))
+    }
+    return to.TextResult(labels)
+}
+
+func CreateOrgLabelFn(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
+    log.Debugf("Called CreateOrgLabelFn")
+    org, ok := req.GetArguments()["org"].(string)
+    if !ok {
+        return to.ErrorResult(fmt.Errorf("org is required"))
+    }
+    name, ok := req.GetArguments()["name"].(string)
+    if !ok {
+        return to.ErrorResult(fmt.Errorf("name is required"))
+    }
+    color, ok := req.GetArguments()["color"].(string)
+    if !ok {
+        return to.ErrorResult(fmt.Errorf("color is required"))
+    }
+    description, _ := req.GetArguments()["description"].(string)
+    exclusive, _ := req.GetArguments()["exclusive"].(bool)
+
+    opt := gitea_sdk.CreateOrgLabelOption{
+        Name:        name,
+        Color:       color,
+        Description: description,
+        Exclusive:   exclusive,
+    }
+
+    client, err := gitea.ClientFromContext(ctx)
+    if err != nil {
+        return to.ErrorResult(fmt.Errorf("get gitea client err: %v", err))
+    }
+    label, _, err := client.CreateOrgLabel(org, opt)
+    if err != nil {
+        return to.ErrorResult(fmt.Errorf("create %v/labels err: %v", org, err))
+    }
+    return to.TextResult(label)
+}
+
+func EditOrgLabelFn(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
+    log.Debugf("Called EditOrgLabelFn")
+    org, ok := req.GetArguments()["org"].(string)
+    if !ok {
+        return to.ErrorResult(fmt.Errorf("org is required"))
+    }
+    id, ok := req.GetArguments()["id"].(float64)
+    if !ok {
+        return to.ErrorResult(fmt.Errorf("label ID is required"))
+    }
+
+    opt := gitea_sdk.EditOrgLabelOption{}
+    if name, ok := req.GetArguments()["name"].(string); ok {
+        opt.Name = ptr.To(name)
+    }
+    if color, ok := req.GetArguments()["color"].(string); ok {
+        opt.Color = ptr.To(color)
+    }
+    if description, ok := req.GetArguments()["description"].(string); ok {
+        opt.Description = ptr.To(description)
+    }
+    if exclusive, ok := req.GetArguments()["exclusive"].(bool); ok {
+        opt.Exclusive = ptr.To(exclusive)
+    }
+
+    client, err := gitea.ClientFromContext(ctx)
+    if err != nil {
+        return to.ErrorResult(fmt.Errorf("get gitea client err: %v", err))
+    }
+    label, _, err := client.EditOrgLabel(org, int64(id), opt)
+    if err != nil {
+        return to.ErrorResult(fmt.Errorf("edit %v/labels/%v err: %v", org, int64(id), err))
+    }
+    return to.TextResult(label)
+}
+
+func DeleteOrgLabelFn(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
+    log.Debugf("Called DeleteOrgLabelFn")
+    org, ok := req.GetArguments()["org"].(string)
+    if !ok {
+        return to.ErrorResult(fmt.Errorf("org is required"))
+    }
+    id, ok := req.GetArguments()["id"].(float64)
+    if !ok {
+        return to.ErrorResult(fmt.Errorf("label ID is required"))
+    }
+
+    client, err := gitea.ClientFromContext(ctx)
+    if err != nil {
+        return to.ErrorResult(fmt.Errorf("get gitea client err: %v", err))
+    }
+    _, err = client.DeleteOrgLabel(org, int64(id))
+    if err != nil {
+        return to.ErrorResult(fmt.Errorf("delete %v/labels/%v err: %v", org, int64(id), err))
+    }
+    return to.TextResult("Label deleted successfully")
+}