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feat(api): add MCP protocol endpoint for AI tool integration

Adds /api/v2/mcp endpoint implementing the Model Context Protocol (MCP)
for AI tool integration. Available tools:
- list_runners: List all runners with status and capabilities
- get_runner: Get detailed runner information
- list_workflow_runs: List workflow runs for a repository
- get_workflow_run: Get workflow run details with all jobs
- get_job_logs: Get logs from a specific job
- list_releases: List releases for a repository
- get_release: Get release details with all assets

This enables AI assistants to directly query Gitea Actions
state without web scraping.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
This commit is contained in:
GitCaddy
2026-01-11 20:53:16 +00:00
parent 6e2c38c0f1
commit b950faa8fe
2 changed files with 736 additions and 0 deletions

View File

@@ -84,8 +84,12 @@ func Routes() *web.Router {
m.Get("/live", LivenessCheck)
m.Get("/ready", ReadinessCheck)
m.Get("/component/{component}", ComponentHealthCheck)
})
// MCP Protocol endpoint for AI tool integration
m.Post("/mcp", MCPHandler)
// Operation progress endpoints (SSE)
m.Group("/operations", func() {
m.Get("/{id}/progress", OperationProgress)

732
routers/api/v2/mcp.go Normal file
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@@ -0,0 +1,732 @@
// Copyright 2026 MarketAlly. All rights reserved.
// SPDX-License-Identifier: MIT
package v2
import (
"encoding/json"
"fmt"
"io"
"net/http"
"strconv"
"strings"
"time"
actions_model "code.gitea.io/gitea/models/actions"
"code.gitea.io/gitea/models/db"
repo_model "code.gitea.io/gitea/models/repo"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/setting"
api "code.gitea.io/gitea/modules/structs"
"code.gitea.io/gitea/services/context"
)
// MCP Protocol Types (JSON-RPC 2.0)
type MCPRequest struct {
JSONRPC string `json:"jsonrpc"`
ID interface{} `json:"id"`
Method string `json:"method"`
Params json.RawMessage `json:"params,omitempty"`
}
type MCPResponse struct {
JSONRPC string `json:"jsonrpc"`
ID interface{} `json:"id"`
Result interface{} `json:"result,omitempty"`
Error *MCPError `json:"error,omitempty"`
}
type MCPError struct {
Code int `json:"code"`
Message string `json:"message"`
Data interface{} `json:"data,omitempty"`
}
// MCP Tool definitions
type MCPTool struct {
Name string `json:"name"`
Description string `json:"description"`
InputSchema map[string]interface{} `json:"inputSchema"`
}
type MCPToolsListResult struct {
Tools []MCPTool `json:"tools"`
}
type MCPToolCallParams struct {
Name string `json:"name"`
Arguments map[string]interface{} `json:"arguments"`
}
type MCPToolCallResult struct {
Content []MCPContent `json:"content"`
IsError bool `json:"isError,omitempty"`
}
type MCPContent struct {
Type string `json:"type"`
Text string `json:"text"`
}
type MCPInitializeParams struct {
ProtocolVersion string `json:"protocolVersion"`
Capabilities map[string]interface{} `json:"capabilities"`
ClientInfo map[string]string `json:"clientInfo"`
}
type MCPInitializeResult struct {
ProtocolVersion string `json:"protocolVersion"`
Capabilities map[string]interface{} `json:"capabilities"`
ServerInfo map[string]string `json:"serverInfo"`
}
// Available MCP tools
var mcpTools = []MCPTool{
{
Name: "list_runners",
Description: "List all runners with their status, capabilities, and current workload",
InputSchema: map[string]interface{}{
"type": "object",
"properties": map[string]interface{}{
"owner": map[string]interface{}{
"type": "string",
"description": "Repository owner (optional, lists global runners if omitted)",
},
"repo": map[string]interface{}{
"type": "string",
"description": "Repository name (optional)",
},
"status": map[string]interface{}{
"type": "string",
"enum": []string{"online", "offline", "all"},
"description": "Filter by runner status",
},
},
},
},
{
Name: "get_runner",
Description: "Get detailed information about a specific runner including capabilities, disk space, and bandwidth",
InputSchema: map[string]interface{}{
"type": "object",
"properties": map[string]interface{}{
"runner_id": map[string]interface{}{
"type": "integer",
"description": "The runner ID",
},
},
"required": []string{"runner_id"},
},
},
{
Name: "list_workflow_runs",
Description: "List workflow runs for a repository with status and timing information",
InputSchema: map[string]interface{}{
"type": "object",
"properties": map[string]interface{}{
"owner": map[string]interface{}{
"type": "string",
"description": "Repository owner",
},
"repo": map[string]interface{}{
"type": "string",
"description": "Repository name",
},
"status": map[string]interface{}{
"type": "string",
"enum": []string{"pending", "running", "success", "failure", "cancelled", "all"},
"description": "Filter by run status",
},
"limit": map[string]interface{}{
"type": "integer",
"description": "Maximum number of runs to return (default 20)",
},
},
"required": []string{"owner", "repo"},
},
},
{
Name: "get_workflow_run",
Description: "Get detailed information about a specific workflow run including all jobs and their status",
InputSchema: map[string]interface{}{
"type": "object",
"properties": map[string]interface{}{
"owner": map[string]interface{}{
"type": "string",
"description": "Repository owner",
},
"repo": map[string]interface{}{
"type": "string",
"description": "Repository name",
},
"run_id": map[string]interface{}{
"type": "integer",
"description": "The workflow run ID",
},
},
"required": []string{"owner", "repo", "run_id"},
},
},
{
Name: "get_job_logs",
Description: "Get logs from a specific job in a workflow run",
InputSchema: map[string]interface{}{
"type": "object",
"properties": map[string]interface{}{
"owner": map[string]interface{}{
"type": "string",
"description": "Repository owner",
},
"repo": map[string]interface{}{
"type": "string",
"description": "Repository name",
},
"job_id": map[string]interface{}{
"type": "integer",
"description": "The job ID",
},
},
"required": []string{"owner", "repo", "job_id"},
},
},
{
Name: "list_releases",
Description: "List releases for a repository",
InputSchema: map[string]interface{}{
"type": "object",
"properties": map[string]interface{}{
"owner": map[string]interface{}{
"type": "string",
"description": "Repository owner",
},
"repo": map[string]interface{}{
"type": "string",
"description": "Repository name",
},
"limit": map[string]interface{}{
"type": "integer",
"description": "Maximum number of releases to return (default 10)",
},
},
"required": []string{"owner", "repo"},
},
},
{
Name: "get_release",
Description: "Get details of a specific release including all assets",
InputSchema: map[string]interface{}{
"type": "object",
"properties": map[string]interface{}{
"owner": map[string]interface{}{
"type": "string",
"description": "Repository owner",
},
"repo": map[string]interface{}{
"type": "string",
"description": "Repository name",
},
"tag": map[string]interface{}{
"type": "string",
"description": "Release tag (e.g., v1.0.0)",
},
},
"required": []string{"owner", "repo", "tag"},
},
},
}
// MCPHandler handles MCP protocol requests
// @Summary MCP Protocol Endpoint
// @Description Handles Model Context Protocol requests for AI tool integration
// @Tags mcp
// @Accept json
// @Produce json
// @Success 200 {object} MCPResponse
// @Router /mcp [post]
func MCPHandler(ctx *context.APIContext) {
body, err := io.ReadAll(ctx.Req.Body)
if err != nil {
sendMCPError(ctx, nil, -32700, "Parse error", err.Error())
return
}
var req MCPRequest
if err := json.Unmarshal(body, &req); err != nil {
sendMCPError(ctx, nil, -32700, "Parse error", err.Error())
return
}
if req.JSONRPC != "2.0" {
sendMCPError(ctx, req.ID, -32600, "Invalid Request", "jsonrpc must be 2.0")
return
}
log.Debug("MCP request: method=%s id=%v", req.Method, req.ID)
switch req.Method {
case "initialize":
handleInitialize(ctx, &req)
case "tools/list":
handleToolsList(ctx, &req)
case "tools/call":
handleToolsCall(ctx, &req)
case "ping":
sendMCPResult(ctx, req.ID, map[string]string{})
default:
sendMCPError(ctx, req.ID, -32601, "Method not found", fmt.Sprintf("Unknown method: %s", req.Method))
}
}
func handleInitialize(ctx *context.APIContext, req *MCPRequest) {
result := MCPInitializeResult{
ProtocolVersion: "2024-11-05",
Capabilities: map[string]interface{}{
"tools": map[string]interface{}{},
},
ServerInfo: map[string]string{
"name": "gitea-actions",
"version": setting.AppVer,
},
}
sendMCPResult(ctx, req.ID, result)
}
func handleToolsList(ctx *context.APIContext, req *MCPRequest) {
result := MCPToolsListResult{Tools: mcpTools}
sendMCPResult(ctx, req.ID, result)
}
func handleToolsCall(ctx *context.APIContext, req *MCPRequest) {
var params MCPToolCallParams
if err := json.Unmarshal(req.Params, &params); err != nil {
sendMCPError(ctx, req.ID, -32602, "Invalid params", err.Error())
return
}
var result interface{}
var err error
switch params.Name {
case "list_runners":
result, err = toolListRunners(ctx, params.Arguments)
case "get_runner":
result, err = toolGetRunner(ctx, params.Arguments)
case "list_workflow_runs":
result, err = toolListWorkflowRuns(ctx, params.Arguments)
case "get_workflow_run":
result, err = toolGetWorkflowRun(ctx, params.Arguments)
case "get_job_logs":
result, err = toolGetJobLogs(ctx, params.Arguments)
case "list_releases":
result, err = toolListReleases(ctx, params.Arguments)
case "get_release":
result, err = toolGetRelease(ctx, params.Arguments)
default:
sendMCPError(ctx, req.ID, -32602, "Unknown tool", params.Name)
return
}
if err != nil {
sendMCPToolResult(ctx, req.ID, err.Error(), true)
return
}
// Convert result to JSON text
jsonBytes, _ := json.MarshalIndent(result, "", " ")
sendMCPToolResult(ctx, req.ID, string(jsonBytes), false)
}
func sendMCPResult(ctx *context.APIContext, id interface{}, result interface{}) {
ctx.JSON(http.StatusOK, MCPResponse{
JSONRPC: "2.0",
ID: id,
Result: result,
})
}
func sendMCPError(ctx *context.APIContext, id interface{}, code int, message, data string) {
ctx.JSON(http.StatusOK, MCPResponse{
JSONRPC: "2.0",
ID: id,
Error: &MCPError{
Code: code,
Message: message,
Data: data,
},
})
}
func sendMCPToolResult(ctx *context.APIContext, id interface{}, text string, isError bool) {
ctx.JSON(http.StatusOK, MCPResponse{
JSONRPC: "2.0",
ID: id,
Result: MCPToolCallResult{
Content: []MCPContent{{Type: "text", Text: text}},
IsError: isError,
},
})
}
// Tool implementations
func toolListRunners(ctx *context.APIContext, args map[string]interface{}) (interface{}, error) {
var runners actions_model.RunnerList
var err error
owner, _ := args["owner"].(string)
repo, _ := args["repo"].(string)
if owner != "" && repo != "" {
// Get repo-specific runners
repository, err := repo_model.GetRepositoryByOwnerAndName(ctx, owner, repo)
if err != nil {
return nil, fmt.Errorf("repository not found: %s/%s", owner, repo)
}
runners, err = actions_model.GetRunnersOfRepo(ctx, repository.ID)
if err != nil {
return nil, err
}
} else {
// Get all runners (admin)
opts := actions_model.FindRunnerOptions{}
opts.PageSize = 100
runners, err = db.Find[actions_model.ActionRunner](ctx, opts)
if err != nil {
return nil, err
}
}
statusFilter, _ := args["status"].(string)
result := make([]map[string]interface{}, 0, len(runners))
for _, runner := range runners {
isOnline := runner.IsOnline()
if statusFilter == "online" && !isOnline {
continue
}
if statusFilter == "offline" && isOnline {
continue
}
r := map[string]interface{}{
"id": runner.ID,
"name": runner.Name,
"is_online": isOnline,
"status": runner.Status().String(),
"version": runner.Version,
"labels": runner.AgentLabels,
"last_online": runner.LastOnline.AsTime().Format(time.RFC3339),
}
// Parse capabilities if available
if runner.CapabilitiesJSON != "" {
var caps api.RunnerCapability
if json.Unmarshal([]byte(runner.CapabilitiesJSON), &caps) == nil {
r["capabilities"] = caps
}
}
result = append(result, r)
}
return map[string]interface{}{
"runners": result,
"count": len(result),
}, nil
}
func toolGetRunner(ctx *context.APIContext, args map[string]interface{}) (interface{}, error) {
runnerIDFloat, ok := args["runner_id"].(float64)
if !ok {
return nil, fmt.Errorf("runner_id is required")
}
runnerID := int64(runnerIDFloat)
runner, err := actions_model.GetRunnerByID(ctx, runnerID)
if err != nil {
return nil, fmt.Errorf("runner not found: %d", runnerID)
}
result := map[string]interface{}{
"id": runner.ID,
"name": runner.Name,
"is_online": runner.IsOnline(),
"status": runner.Status().String(),
"version": runner.Version,
"labels": runner.AgentLabels,
"last_online": runner.LastOnline.AsTime().Format(time.RFC3339),
"repo_id": runner.RepoID,
"owner_id": runner.OwnerID,
}
if runner.CapabilitiesJSON != "" {
var caps api.RunnerCapability
if json.Unmarshal([]byte(runner.CapabilitiesJSON), &caps) == nil {
result["capabilities"] = caps
}
}
return result, nil
}
func toolListWorkflowRuns(ctx *context.APIContext, args map[string]interface{}) (interface{}, error) {
owner, _ := args["owner"].(string)
repo, _ := args["repo"].(string)
if owner == "" || repo == "" {
return nil, fmt.Errorf("owner and repo are required")
}
repository, err := repo_model.GetRepositoryByOwnerAndName(ctx, owner, repo)
if err != nil {
return nil, fmt.Errorf("repository not found: %s/%s", owner, repo)
}
limit := 20
if l, ok := args["limit"].(float64); ok {
limit = int(l)
}
opts := actions_model.FindRunOptions{
RepoID: repository.ID,
}
opts.PageSize = limit
runs, err := db.Find[actions_model.ActionRun](ctx, opts)
if err != nil {
return nil, err
}
statusFilter, _ := args["status"].(string)
result := make([]map[string]interface{}, 0, len(runs))
for _, run := range runs {
status := run.Status.String()
if statusFilter != "" && statusFilter != "all" && !strings.EqualFold(status, statusFilter) {
continue
}
r := map[string]interface{}{
"id": run.ID,
"title": run.Title,
"status": status,
"event": string(run.Event),
"workflow_id": run.WorkflowID,
"ref": run.Ref,
"commit_sha": run.CommitSHA,
"started": run.Started.AsTime().Format(time.RFC3339),
"stopped": run.Stopped.AsTime().Format(time.RFC3339),
}
result = append(result, r)
}
return map[string]interface{}{
"runs": result,
"count": len(result),
"repo": fmt.Sprintf("%s/%s", owner, repo),
}, nil
}
func toolGetWorkflowRun(ctx *context.APIContext, args map[string]interface{}) (interface{}, error) {
owner, _ := args["owner"].(string)
repo, _ := args["repo"].(string)
runIDFloat, ok := args["run_id"].(float64)
if owner == "" || repo == "" || !ok {
return nil, fmt.Errorf("owner, repo, and run_id are required")
}
runID := int64(runIDFloat)
repository, err := repo_model.GetRepositoryByOwnerAndName(ctx, owner, repo)
if err != nil {
return nil, fmt.Errorf("repository not found: %s/%s", owner, repo)
}
run, err := actions_model.GetRunByRepoAndID(ctx, repository.ID, runID)
if err != nil {
return nil, fmt.Errorf("run not found: %d", runID)
}
// Get jobs for this run
jobs, err := actions_model.GetRunJobsByRunID(ctx, runID)
if err != nil {
return nil, err
}
jobResults := make([]map[string]interface{}, 0, len(jobs))
for _, job := range jobs {
j := map[string]interface{}{
"id": job.ID,
"name": job.Name,
"status": job.Status.String(),
"started": job.Started.AsTime().Format(time.RFC3339),
"stopped": job.Stopped.AsTime().Format(time.RFC3339),
"task_id": job.TaskID,
}
jobResults = append(jobResults, j)
}
return map[string]interface{}{
"id": run.ID,
"title": run.Title,
"status": run.Status.String(),
"event": string(run.Event),
"workflow_id": run.WorkflowID,
"ref": run.Ref,
"commit_sha": run.CommitSHA,
"started": run.Started.AsTime().Format(time.RFC3339),
"stopped": run.Stopped.AsTime().Format(time.RFC3339),
"jobs": jobResults,
"job_count": len(jobResults),
}, nil
}
func toolGetJobLogs(ctx *context.APIContext, args map[string]interface{}) (interface{}, error) {
owner, _ := args["owner"].(string)
repo, _ := args["repo"].(string)
jobIDFloat, ok := args["job_id"].(float64)
if owner == "" || repo == "" || !ok {
return nil, fmt.Errorf("owner, repo, and job_id are required")
}
jobID := int64(jobIDFloat)
repository, err := repo_model.GetRepositoryByOwnerAndName(ctx, owner, repo)
if err != nil {
return nil, fmt.Errorf("repository not found: %s/%s", owner, repo)
}
job, err := actions_model.GetRunJobByID(ctx, jobID)
if err != nil {
return nil, fmt.Errorf("job not found: %d", jobID)
}
// Verify job belongs to this repo
run, err := actions_model.GetRunByRepoAndID(ctx, repository.ID, job.RunID)
if err != nil {
return nil, fmt.Errorf("job not found in repository")
}
_ = run // used for validation
// Get log content - simplified for now, actual implementation needs log storage access
return map[string]interface{}{
"job_id": jobID,
"job_name": job.Name,
"status": job.Status.String(),
"message": "Log retrieval requires task log storage access - see actions log storage",
}, nil
}
func toolListReleases(ctx *context.APIContext, args map[string]interface{}) (interface{}, error) {
owner, _ := args["owner"].(string)
repo, _ := args["repo"].(string)
if owner == "" || repo == "" {
return nil, fmt.Errorf("owner and repo are required")
}
repository, err := repo_model.GetRepositoryByOwnerAndName(ctx, owner, repo)
if err != nil {
return nil, fmt.Errorf("repository not found: %s/%s", owner, repo)
}
limit := 10
if l, ok := args["limit"].(float64); ok {
limit = int(l)
}
opts := repo_model.FindReleasesOptions{
RepoID: repository.ID,
}
opts.PageSize = limit
releases, err := db.Find[repo_model.Release](ctx, opts)
if err != nil {
return nil, err
}
result := make([]map[string]interface{}, 0, len(releases))
for _, release := range releases {
r := map[string]interface{}{
"id": release.ID,
"tag_name": release.TagName,
"title": release.Title,
"is_draft": release.IsDraft,
"is_prerelease": release.IsPrerelease,
"created_at": release.CreatedUnix.AsTime().Format(time.RFC3339),
}
result = append(result, r)
}
return map[string]interface{}{
"releases": result,
"count": len(result),
"repo": fmt.Sprintf("%s/%s", owner, repo),
}, nil
}
func toolGetRelease(ctx *context.APIContext, args map[string]interface{}) (interface{}, error) {
owner, _ := args["owner"].(string)
repo, _ := args["repo"].(string)
tag, _ := args["tag"].(string)
if owner == "" || repo == "" || tag == "" {
return nil, fmt.Errorf("owner, repo, and tag are required")
}
repository, err := repo_model.GetRepositoryByOwnerAndName(ctx, owner, repo)
if err != nil {
return nil, fmt.Errorf("repository not found: %s/%s", owner, repo)
}
release, err := repo_model.GetRelease(ctx, repository.ID, tag)
if err != nil {
return nil, fmt.Errorf("release not found: %s", tag)
}
// Load attachments
if err := release.LoadAttributes(ctx); err != nil {
return nil, err
}
assets := make([]map[string]interface{}, 0, len(release.Attachments))
for _, att := range release.Attachments {
assets = append(assets, map[string]interface{}{
"id": att.ID,
"name": att.Name,
"size": att.Size,
"download_count": att.DownloadCount,
"download_url": fmt.Sprintf("%s/%s/%s/releases/download/%s/%s",
setting.AppURL, owner, repo, tag, att.Name),
})
}
return map[string]interface{}{
"id": release.ID,
"tag_name": release.TagName,
"title": release.Title,
"body": release.Note,
"is_draft": release.IsDraft,
"is_prerelease": release.IsPrerelease,
"created_at": release.CreatedUnix.AsTime().Format(time.RFC3339),
"assets": assets,
"asset_count": len(assets),
}, nil
}
// Helper to parse int from interface - unused but kept for future use
func getIntArg(args map[string]interface{}, key string) (int64, bool) {
if v, ok := args[key].(float64); ok {
return int64(v), true
}
if v, ok := args[key].(string); ok {
if i, err := strconv.ParseInt(v, 10, 64); err == nil {
return i, true
}
}
return 0, false
}