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refactor: replace mcp-go with the official MCP Go SDK (#223)

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## Summary

Replace `github.com/mark3labs/mcp-go` with the official
`github.com/modelcontextprotocol/go-sdk v1.7.0`.

All 54 existing tools, scopes, CLI, `stdio` and HTTP (`/mcp`) modes, and
per-request authentication remain supported. This PR is limited to the SDK
equivalence migration; the stateless 2026 HTTP transport is deferred to a
follow-up PR.

## Verification

- Tool definitions were compared with `main` and matched for all 54 tools.
- `make lint`, `make fmt`, `go test -count=1 -race ./...`, `make build`, and
  `make tidy` pass.

---------

Co-authored-by: bircni <bircni@icloud.com>
Co-authored-by: silverwind <me@silverwind.io>
Reviewed-on: https://gitea.com/gitea/gitea-mcp/pulls/223
Reviewed-by: silverwind <2021+silverwind@noreply.gitea.com>
Reviewed-by: bircni <bircni@icloud.com>
Co-authored-by: Bo-Yi Wu <appleboy.tw@gmail.com>
This commit is contained in:
Bo-Yi Wu
2026-08-06 05:36:21 +00:00
committed by Bo-Yi Wu (吳柏毅)
parent 8b236c2e26
commit efcbdbb17f
48 changed files with 2465 additions and 1570 deletions
Download Patch File Download Diff File Expand all files Collapse all files
operation/issue/attachment.go
+41 -39
View File
@@ -3,7 +3,6 @@ package issue
import (
"bytes"
"context"
"encoding/base64"
"errors"
"fmt"
"io"
@@ -17,51 +16,51 @@ import (
"gitea.com/gitea/gitea-mcp/pkg/gitea"
"gitea.com/gitea/gitea-mcp/pkg/params"
"gitea.com/gitea/gitea-mcp/pkg/to"
"gitea.com/gitea/gitea-mcp/pkg/tool"
gitea_sdk "gitea.dev/sdk"
"github.com/mark3labs/mcp-go/mcp"
"github.com/mark3labs/mcp-go/server"
"github.com/modelcontextprotocol/go-sdk/mcp"
)
const AttachmentReadToolName = "attachment_read"
var AttachmentReadTool = mcp.NewTool(
var AttachmentReadTool = tool.NewDefinition(
AttachmentReadToolName,
mcp.WithDescription("Read issue/comment attachments: list metadata, get metadata, or download content."),
mcp.WithToolAnnotation(annotation.ReadOnly("Read issue or comment attachments")),
mcp.WithString("method", mcp.Required(), mcp.Enum("list", "get", "download")),
mcp.WithString("owner", mcp.Required(), mcp.Description(params.OwnerDesc)),
mcp.WithString("repo", mcp.Required(), mcp.Description(params.RepoDesc)),
mcp.WithNumber("issue_number", mcp.Description("required for issue attachment list/get or issue-scoped metadata lookup")),
mcp.WithNumber("comment_id", mcp.Description("required for comment attachment list/get or comment-scoped metadata lookup")),
mcp.WithNumber("attachment_id", mcp.Description("required for get and for download when attachment_uuid is not provided")),
mcp.WithString("attachment_uuid", mcp.Description("attachment UUID for direct download path lookup")),
mcp.WithString("output_path", mcp.Description("write the attachment to this exact path")),
"Read issue/comment attachments: list metadata, get metadata, or download content.",
annotation.ReadOnly("Read issue or comment attachments"),
tool.String("method", tool.Required(), tool.Enum("list", "get", "download")),
tool.String("owner", tool.Required(), tool.Description(params.OwnerDesc)),
tool.String("repo", tool.Required(), tool.Description(params.RepoDesc)),
tool.Number("issue_number", tool.Description("required for issue attachment list/get or issue-scoped metadata lookup")),
tool.Number("comment_id", tool.Description("required for comment attachment list/get or comment-scoped metadata lookup")),
tool.Number("attachment_id", tool.Description("required for get and for download when attachment_uuid is not provided")),
tool.String("attachment_uuid", tool.Description("attachment UUID for direct download path lookup")),
tool.String("output_path", tool.Description("write the attachment to this exact path")),
)
func init() {
Tool.RegisterRead(server.ServerTool{Tool: AttachmentReadTool, Handler: attachmentReadFn})
Tool.RegisterRead(tool.ServerTool{Tool: AttachmentReadTool, Handler: attachmentReadFn})
}
func attachmentReadFn(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
method, err := params.GetString(req.GetArguments(), "method")
func attachmentReadFn(ctx context.Context, args map[string]any) (*mcp.CallToolResult, error) {
method, err := params.GetString(args, "method")
if err != nil {
return to.ErrorResult(err)
}
switch method {
case "list":
return listAttachmentsFn(ctx, req)
return listAttachmentsFn(ctx, args)
case "get":
return getAttachmentFn(ctx, req)
return getAttachmentFn(ctx, args)
case "download":
return downloadAttachmentFn(ctx, req)
return downloadAttachmentFn(ctx, args)
default:
return to.ErrorResult(fmt.Errorf("unknown method: %s", method))
}
}
func listAttachmentsFn(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
owner, repo, issueNumber, commentID, err := attachmentScopeArgs(req)
func listAttachmentsFn(ctx context.Context, args map[string]any) (*mcp.CallToolResult, error) {
owner, repo, issueNumber, commentID, err := attachmentScopeArgs(args)
if err != nil {
return to.ErrorResult(err)
}
@@ -81,29 +80,29 @@ func listAttachmentsFn(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallT
return to.TextResult(slimAttachments(attachments))
}
func getAttachmentFn(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
att, err := lookupAttachment(ctx, req)
func getAttachmentFn(ctx context.Context, args map[string]any) (*mcp.CallToolResult, error) {
att, err := lookupAttachment(ctx, args)
if err != nil {
return to.ErrorResult(err)
}
return to.TextResult(slimAttachment(att))
}
func downloadAttachmentFn(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
owner, err := params.GetString(req.GetArguments(), "owner")
func downloadAttachmentFn(ctx context.Context, args map[string]any) (*mcp.CallToolResult, error) {
owner, err := params.GetString(args, "owner")
if err != nil {
return to.ErrorResult(err)
}
repo, err := params.GetString(req.GetArguments(), "repo")
repo, err := params.GetString(args, "repo")
if err != nil {
return to.ErrorResult(err)
}
explicitOutputPath := params.GetOptionalString(req.GetArguments(), "output_path", "")
attachmentUUID := strings.TrimSpace(params.GetOptionalString(req.GetArguments(), "attachment_uuid", ""))
explicitOutputPath := params.GetOptionalString(args, "output_path", "")
attachmentUUID := strings.TrimSpace(params.GetOptionalString(args, "attachment_uuid", ""))
var att *gitea_sdk.Attachment
if attachmentUUID == "" {
att, err = lookupAttachment(ctx, req)
att, err = lookupAttachment(ctx, args)
if err != nil {
return to.ErrorResult(err)
}
@@ -132,7 +131,10 @@ func downloadAttachmentFn(ctx context.Context, req mcp.CallToolRequest) (*mcp.Ca
}
if len(limited) <= flag.MaxInlineAttachmentBytes {
text := fmt.Sprintf("attachment %s (%s, %d bytes, %s)", name, attachmentUUID, len(limited), mimeType)
return mcp.NewToolResultImage(text, base64.StdEncoding.EncodeToString(limited), mimeType), nil
return &mcp.CallToolResult{Content: []mcp.Content{
&mcp.TextContent{Text: text},
&mcp.ImageContent{Data: limited, MIMEType: mimeType},
}}, nil
}
outputPath := defaultAttachmentPath(owner, repo, name, attachmentUUID)
if err := os.MkdirAll(filepath.Dir(outputPath), 0o700); err != nil {
@@ -185,29 +187,29 @@ func attachmentFileResult(att *gitea_sdk.Attachment, outputPath string, written
return to.TextResult(res)
}
func attachmentScopeArgs(req mcp.CallToolRequest) (owner, repo string, issueNumber, commentID int64, err error) {
owner, err = params.GetString(req.GetArguments(), "owner")
func attachmentScopeArgs(args map[string]any) (owner, repo string, issueNumber, commentID int64, err error) {
owner, err = params.GetString(args, "owner")
if err != nil {
return "", "", 0, 0, err
}
repo, err = params.GetString(req.GetArguments(), "repo")
repo, err = params.GetString(args, "repo")
if err != nil {
return "", "", 0, 0, err
}
issueNumber = params.GetOptionalInt(req.GetArguments(), "issue_number", 0)
commentID = params.GetOptionalInt(req.GetArguments(), "comment_id", 0)
issueNumber = params.GetOptionalInt(args, "issue_number", 0)
commentID = params.GetOptionalInt(args, "comment_id", 0)
if (issueNumber > 0) == (commentID > 0) {
return "", "", 0, 0, errors.New("exactly one of issue_number or comment_id is required")
}
return owner, repo, issueNumber, commentID, nil
}
func lookupAttachment(ctx context.Context, req mcp.CallToolRequest) (*gitea_sdk.Attachment, error) {
owner, repo, issueNumber, commentID, err := attachmentScopeArgs(req)
func lookupAttachment(ctx context.Context, args map[string]any) (*gitea_sdk.Attachment, error) {
owner, repo, issueNumber, commentID, err := attachmentScopeArgs(args)
if err != nil {
return nil, err
}
attachmentID := params.GetOptionalInt(req.GetArguments(), "attachment_id", 0)
attachmentID := params.GetOptionalInt(args, "attachment_id", 0)
if attachmentID <= 0 {
return nil, errors.New("attachment_id is required")
}