- Add --provider flag (gitea|github) for VCS backend selection
- Add --base-url flag for GitHub API endpoint configuration
- Rename --gitea-url to --vcs-url with backward-compatible alias
- Replace direct gitea.Client usage with vcs.Client interface
- Create vcs.Client via factory switch based on --provider value
- Implement Reviewer + Identity interfaces on github.Client
- Add verdictToEvent() using canonical vcs.ReviewEvent types
- Remove review.GiteaEvent() (replaced by verdictToEvent)
- GitHub supersede uses DismissReview; Gitea keeps EditComment flow
- Add VCS_PROVIDER, VCS_BASE_URL, VCS_URL env var support

Closes #82

@@ -144,0 +168,4 @@
+		if ghBaseURL == "" {
+			ghBaseURL = "https://api.github.com"
+		}
+		client = github.NewClient(*reviewerToken, ghBaseURL)

@@ -443,2 +480,4 @@
 		}
+	} else {
+		slog.Debug("RequestReviewer not supported for provider, skipping")
 	}

@@ -0,0 +150,4 @@
+		return fmt.Errorf("delete review: %w", err)
+	}
+	return nil
+}

@@ -0,0 +182,4 @@
+	}
+	return resp.Login, nil
+}
+

@@ -116,4 +101,1 @@
-		}
-	}
-}
 

@@ -744,7 +825,7 @@ func hasSharedToken(reviews []gitea.Review, ownSentinel string) bool {
 	}
 	for _, r := range reviews {

@@ -144,0 +167,4 @@
+		ghBaseURL := *baseURL
+		if ghBaseURL == "" {
+			ghBaseURL = "https://api.github.com"
+		}

@@ -443,1 +481,4 @@
+			}
 		}
+	} else {
+		slog.Debug("RequestReviewer not supported for provider, skipping")

@@ -498,0 +534,4 @@
+		return nil
+	}
+
+	// Gitea: existing EditComment + ResolveComment flow

@@ -0,0 +45,4 @@
+	Event   string `json:"event"`
+}
+
+// userResponse is the GitHub API response for the authenticated user.

@@ -0,0 +154,4 @@
+	return nil
+}
+
+// DismissReview dismisses a review on a pull request with a message.

@@ -144,0 +167,4 @@
+		ghBaseURL := *baseURL
+		if ghBaseURL == "" {
+			ghBaseURL = "https://api.github.com"
+		}

@@ -0,0 +151,4 @@
+	if err != nil {
+		return fmt.Errorf("delete review: %w", err)
+	}
+	return nil

@@ -0,0 +191,4 @@
+	const maxErrorBodyBytes = 4 * 1024
+
+	jsonBody, err := json.Marshal(payload)
+	if err != nil {

@@ -80,6 +84,9 @@ func main() {
 	aicoreAPIURL := flag.String("aicore-api-url", envOrDefault("AICORE_API_URL", ""), "SAP AI Core API URL (for provider=aicore)")
 	aicoreResourceGroup := flag.String("aicore-resource-group", envOrDefault("AICORE_RESOURCE_GROUP", "default"), "SAP AI Core resource group (for provider=aicore)")
 
+	// Register --gitea-url as a deprecated alias for --vcs-url

@@ -431,74 +469,127 @@ func main() {
 		}

@@ -443,0 +473,4 @@
+	if giteaAdapter, ok := client.(*gitea.Adapter); ok {
+		authUser, err := client.GetAuthenticatedUser(ctx)
+		if err != nil {
+			slog.Warn("could not determine authenticated user for reviewer self-request", "error", err)

@@ -0,0 +98,4 @@
+
+	return &vcs.Review{
+		ID:       resp.ID,
+		Body:     resp.Body,

@@ -0,0 +160,4 @@
+
+	payload := dismissReviewRequest{
+		Message: message,
+	}

@@ -80,6 +84,9 @@ func main() {
 	aicoreAPIURL := flag.String("aicore-api-url", envOrDefault("AICORE_API_URL", ""), "SAP AI Core API URL (for provider=aicore)")

@@ -498,0 +527,4 @@
+	switch provider {
+	case "github":
+		for _, old := range oldReviews {
+			if err := client.DismissReview(ctx, owner, repoName, prNumber, old.ID, "Superseded by new review"); err != nil {

@@ -0,0 +110,4 @@
+	var allReviews []vcs.Review
+
+	for page := 1; page <= 100; page++ {
+		reqURL := fmt.Sprintf("%s/repos/%s/%s/pulls/%d/reviews?per_page=100&page=%d",

@@ -0,0 +159,4 @@
+		c.baseURL, url.PathEscape(owner), url.PathEscape(repo), number, reviewID)
+
+	payload := dismissReviewRequest{
+		Message: message,

@@ -80,6 +84,9 @@ func main() {
 	aicoreAPIURL := flag.String("aicore-api-url", envOrDefault("AICORE_API_URL", ""), "SAP AI Core API URL (for provider=aicore)")

@@ -0,0 +195,4 @@
+
+	if c.token != "" && !c.allowInsecureHTTP {
+		parsed, err := url.Parse(reqURL)
+		if err != nil {

@@ -0,0 +117,4 @@
+			return nil, fmt.Errorf("list reviews page %d: %w", page, err)
+		}
+		var reviews []reviewResponse
+		if err := json.Unmarshal(body, &reviews); err != nil {

@@ -80,6 +84,11 @@ func main() {
 	aicoreAPIURL := flag.String("aicore-api-url", envOrDefault("AICORE_API_URL", ""), "SAP AI Core API URL (for provider=aicore)")

@@ -454,3 +503,3 @@
 
-	// Supersede all old reviews with link to the new one
+	// Supersede all old reviews
 	if len(oldReviews) > 0 {

@@ -0,0 +57,4 @@
+	case vcs.ReviewEventRequestChanges:
+		return "REQUEST_CHANGES"
+	case vcs.ReviewEventComment:
+		return "COMMENT"

@@ -0,0 +161,4 @@
+
+	payload := dismissReviewRequest{
+		Message: message,
+	}

@@ -80,6 +84,11 @@ func main() {
 	aicoreAPIURL := flag.String("aicore-api-url", envOrDefault("AICORE_API_URL", ""), "SAP AI Core API URL (for provider=aicore)")

@@ -498,0 +527,4 @@
+// For Gitea: edits the review body and resolves inline comments.
+func supersedeOldReviews(ctx context.Context, client vcs.Client, provider, vcsURL, owner, repoName string, prNumber int, oldReviews []vcs.Review, newReviewID int64, sentinel string) error {
+	switch provider {
+	case "github":

@@ -0,0 +110,4 @@
+func (c *Client) ListReviews(ctx context.Context, owner, repo string, number int) ([]vcs.Review, error) {
+	var allReviews []vcs.Review
+
+	for page := 1; page <= 100; page++ {

@@ -0,0 +117,4 @@
+		if err != nil {
+			return nil, fmt.Errorf("list reviews page %d: %w", page, err)
+		}
+		var reviews []reviewResponse

@@ -0,0 +159,4 @@
+	reqURL := fmt.Sprintf("%s/repos/%s/%s/pulls/%d/reviews/%d/dismissals",
+		c.baseURL, url.PathEscape(owner), url.PathEscape(repo), number, reviewID)
+
+	payload := dismissReviewRequest{

@@ -0,0 +195,4 @@
+	}
+
+	if c.token != "" && !c.allowInsecureHTTP {
+		parsed, err := url.Parse(reqURL)

@@ -372,3 +406,4 @@
+	event := verdictToEvent(result.Verdict)
 
 	if *dryRun {
 		fmt.Println("--- DRY RUN ---")

@@ -0,0 +102,4 @@
+		Body:     resp.Body,
+		User:     vcs.UserInfo{Login: resp.User.Login},
+		State:    resp.State,
+		CommitID: resp.CommitID,

@@ -80,6 +85,14 @@ func main() {
 	aicoreAPIURL := flag.String("aicore-api-url", envOrDefault("AICORE_API_URL", ""), "SAP AI Core API URL (for provider=aicore)")
 	aicoreResourceGroup := flag.String("aicore-resource-group", envOrDefault("AICORE_RESOURCE_GROUP", "default"), "SAP AI Core resource group (for provider=aicore)")
 
+	// Register --gitea-url as a backward-compatible alias for --vcs-url.

@@ -443,0 +485,4 @@
+				slog.Warn("could not self-request as reviewer", "user", authUser, "error", err)
+			} else {
+				slog.Debug("self-requested as reviewer", "user", authUser, "pr", prNumber)
+			}

@@ -345,0 +388,4 @@
+		body, err := io.ReadAll(io.LimitReader(resp.Body, int64(maxResponseBytes)+1))
+		if err != nil {
+			return nil, fmt.Errorf("read response body: %w", err)
+		}

@@ -0,0 +55,4 @@
+}
+
+// translateReviewEvent converts a vcs.ReviewEvent to the GitHub API event string.
+func translateReviewEvent(event vcs.ReviewEvent) string {

@@ -0,0 +97,4 @@
+		return nil, fmt.Errorf("post review: %w", err)
+	}
+
+	var resp reviewResponse

@@ -144,0 +172,4 @@
+	case "github":
+		ghBaseURL := *baseURL
+		if ghBaseURL == "" {
+			ghBaseURL = "https://api.github.com"

@@ -416,10 +465,9 @@ func main() {
 	// --- Review update strategy ---
 	// 1. POST new review first (gets non-stale approval badge on HEAD)
 	// 2. Then supersede old review with link to the new one

@@ -431,74 +479,130 @@ func main() {
 		}

@@ -4,6 +4,8 @@
 package github

@@ -345,0 +390,4 @@
+			}
+			if delay > 0 {
+				timer := time.NewTimer(delay)
+				select {

@@ -595,0 +610,4 @@
+
+	c := NewClient("token", ts.URL, AllowInsecureHTTP())
+	c.SetRetryBackoff([]time.Duration{1 * time.Millisecond, 1 * time.Millisecond})
+

@@ -0,0 +114,4 @@
+	var allReviews []vcs.Review
+
+	for page := 1; page <= maxReviewPages; page++ {
+		reqURL := fmt.Sprintf("%s/repos/%s/%s/pulls/%d/reviews?per_page=%d&page=%d",

@@ -360,15 +402,16 @@ func main() {
 	}

@@ -83,0 +94,4 @@
+	//
+	// ORDERING: This must remain AFTER vcsURL's flag.String declaration and BEFORE
+	// flag.Parse(). The *vcsURL dereference captures the env-var-resolved default
+	// at registration time; moving flag.Parse() above this line would break it.

@@ -144,0 +170,4 @@
+	// Initialize VCS client
+	var client vcs.Client
+	switch *provider {
+	case "gitea":

@@ -431,74 +479,130 @@ func main() {
 		}

@@ -443,0 +483,4 @@
+	if giteaAdapter, ok := client.(*gitea.Adapter); ok {
+		authUser, err := client.GetAuthenticatedUser(ctx)
+		if err != nil {
+			slog.Warn("could not determine authenticated user for reviewer self-request", "error", err)

@@ -0,0 +1,194 @@
+package github

@@ -0,0 +135,4 @@
+				User:     vcs.UserInfo{Login: r.User.Login},
+				State:    r.State,
+				CommitID: r.CommitID,
+			})

@@ -498,0 +536,4 @@
+// For Gitea: edits the review body with a link to the new review and resolves inline comments.
+//
+// The vcsURL parameter is only used in the Gitea path to construct review permalink URLs;
+// it is accepted unconditionally to keep the function signature uniform across providers.

@@ -498,0 +551,4 @@
+			}
+		}
+		return errors.Join(errs...)
+	case "gitea":

@@ -498,0 +553,4 @@
+		return errors.Join(errs...)
+	case "gitea":
+		// Continue to Gitea-specific logic below the switch.
+	default:

@@ -769,0 +896,4 @@
+	}
+	if name == "" {
+		return "unknown"
+	}

@@ -0,0 +135,4 @@
+				User:     vcs.UserInfo{Login: r.User.Login},
+				State:    r.State,
+				CommitID: r.CommitID,
+			})

@@ -142,2 +170,2 @@
-	// Initialize clients
-	giteaClient := gitea.NewClient(*giteaURL, *reviewerToken)
+	// Initialize VCS client
+	var client vcs.Client

@@ -493,2 +514,2 @@
-				slog.Warn("some inline comments could not be resolved", "review_id", oldReview.ID, "failed", failed, "pr", prNumber)
-			}
+		if err := supersedeOldReviews(ctx, client, *provider, *vcsURL, owner, repoName, prNumber, oldReviews, posted.ID, sentinel); err != nil {
+			slog.Error("failed to supersede old reviews", "error", err)

@@ -80,6 +85,18 @@ func main() {
 	aicoreAPIURL := flag.String("aicore-api-url", envOrDefault("AICORE_API_URL", ""), "SAP AI Core API URL (for provider=aicore)")

@@ -139,8 +167,25 @@ func main() {
 		os.Exit(1)

@@ -258,3 +300,3 @@
-		content, err := giteaClient.GetFileContent(ctx, owner, repoName, *conventionsFile)
+		content, err := client.GetFileContent(ctx, owner, repoName, *conventionsFile, "")
 		if err != nil {
 			slog.Warn("could not load conventions file", "file", *conventionsFile, "error", err)

@@ -0,0 +145,4 @@
+		// our page limit. The loop naturally exits after this iteration since page
+		// increments past maxReviewPages.
+		if page == maxReviewPages {
+			slog.Warn("ListReviews hit page limit; results may be truncated",

@@ -144,0 +173,4 @@
+	case "gitea":
+		giteaClient := gitea.NewClient(*vcsURL, *reviewerToken)
+		client = gitea.NewAdapter(giteaClient)
+	case "github":

@@ -83,0 +94,4 @@
+	//
+	// ORDERING: This must remain AFTER vcsURL's flag.String declaration and BEFORE
+	// flag.Parse(). The *vcsURL dereference captures the env-var-resolved default
+	// at registration time; moving flag.Parse() above this line would break it.

@@ -144,3 +188,4 @@
+	// Initialize LLM client
 	llmClient := llm.NewClient(*llmBaseURL, *llmAPIKey, *llmModel)
 	if *llmTemp < 0 || *llmTemp > 2 {
 		slog.Error("invalid LLM temperature", "temperature", *llmTemp, "range", "0-2")

@@ -448,1 +500,3 @@
-	posted, err := giteaClient.PostReview(ctx, owner, repoName, prNumber, event, reviewBody, inlineComments)
+	reviewReq := vcs.ReviewRequest{
+		Body:     reviewBody,
+		Event:    event,

@@ -0,0 +116,4 @@
+
+	for page := 1; page <= maxReviewPages; page++ {
+		reqURL := fmt.Sprintf("%s/repos/%s/%s/pulls/%d/reviews?per_page=%d&page=%d",
+			c.baseURL, url.PathEscape(owner), url.PathEscape(repo), number, reviewsPerPage, page)

@@ -495,3 +517,4 @@
 		}
 	}
+}
 

@@ -0,0 +11,4 @@
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-go@v5

@@ -59,1 +62,4 @@
+	vcsURL := flag.String("vcs-url", envOrDefault("VCS_URL", envOrDefault("GITEA_URL", envOrDefault("GITHUB_SERVER_URL", ""))), "VCS instance URL (Gitea) [deprecated alias: --gitea-url]")
+	// Keep --gitea-url as backward-compatible alias (flag package doesn't support aliases natively, handle below)
+	repo := flag.String("repo", envOrDefault("VCS_REPO", envOrDefault("GITEA_REPO", envOrDefault("GITHUB_REPOSITORY", ""))), "Repository (owner/name)")
 	prNum := flag.String("pr", envOrDefault("PR_NUMBER", ""), "Pull request number")

@@ -442,0 +487,4 @@
+		} else if authUser != "" {
+			if err := giteaAdapter.Underlying().RequestReviewer(ctx, owner, repoName, prNumber, authUser); err != nil {
+				slog.Warn("could not self-request as reviewer", "user", authUser, "error", err)
+			} else {

@@ -492,2 +514,2 @@
-				slog.Warn("some inline comments could not be resolved", "review_id", oldReview.ID, "failed", failed, "pr", prNumber)
-			}
+		if err := supersedeOldReviews(ctx, client, *provider, *vcsURL, owner, repoName, prNumber, oldReviews, posted.ID, sentinel); err != nil {
+			slog.Error("failed to supersede old reviews", "error", err)

@@ -0,0 +171,4 @@
+			// Gitea review comments are pinned to the PR head SHA automatically,
+			// and the CreatePullReview API has no per-comment commit_id field.
+			giteaComments = append(giteaComments, ReviewComment{
+				Path:        c.Path,

@@ -832,2 +835,4 @@
 	return nil
 }
+
+// DismissReview dismisses a review on a pull request.

@@ -0,0 +1,190 @@
+package gitea

@@ -0,0 +157,4 @@
+		result = append(result, vcs.CommitStatus{
+			Context:     s.Context,
+			Status:      s.State,
+			Description: s.Description,

@@ -0,0 +94,4 @@
+	body, err := c.doJSONRequest(ctx, http.MethodPost, reqURL, payload)
+	if err != nil {
+		return nil, fmt.Errorf("post review: %w", err)
+	}

@@ -0,0 +118,4 @@
+		reqURL := fmt.Sprintf("%s/repos/%s/%s/pulls/%d/reviews?per_page=%d&page=%d",
+			c.baseURL, url.PathEscape(owner), url.PathEscape(repo), number, reviewsPerPage, page)
+		body, err := c.doGet(ctx, reqURL)
+		if err != nil {

@@ -0,0 +113,4 @@
+		}
+
+		// Skip diff --git lines
+		if strings.HasPrefix(line, "diff --git") {

@@ -0,0 +142,4 @@
+		}
+
+		// Process diff content lines
+		if strings.HasPrefix(line, "+") {

@@ -214,7 +256,7 @@ func main() {
 	slog.Info("reviewing pull request", "pr", prNumber, "repo", fmt.Sprintf("%s/%s", owner, repoName))
 
 	// Step 1: Fetch PR metadata

@@ -443,0 +483,4 @@
+	if giteaAdapter, ok := client.(*gitea.Adapter); ok {
+		authUser, err := client.GetAuthenticatedUser(ctx)
+		if err != nil {
+			slog.Warn("could not determine authenticated user for reviewer self-request", "error", err)

@@ -766,3 +891,3 @@
 		return "unknown"
 	}
-	return rest[:end]
+	name := rest[:end]

@@ -383,4 +384,16 @@ func (c *Client) doRequestWithBody(ctx context.Context, method, reqURL string, r
 		opts.extraHeaders = map[string]string{"Content-Type": "application/json"}

@@ -118,9 +121,7 @@ func ListBuiltinPersonas() []string {
 		default:

@@ -83,2 +98,4 @@
+	flag.StringVar(vcsURL, "gitea-url", *vcsURL, "Deprecated: use --vcs-url instead")
+
 	flag.Parse()
 

@@ -498,0 +541,4 @@
+	case "github":
+		// Best-effort dismissal: attempt all reviews, join any errors.
+		var errs []error
+		for _, old := range oldReviews {

@@ -383,4 +384,16 @@ func (c *Client) doRequestWithBody(ctx context.Context, method, reqURL string, r
 		opts.extraHeaders = map[string]string{"Content-Type": "application/json"}
 	}
 	return c.doRequestCore(ctx, method, reqURL, opts)
+

@@ -54,19 +56,22 @@ func main() {
 	// Logging flags

@@ -443,0 +485,4 @@
+			if err := giteaAdapter.Underlying().RequestReviewer(ctx, owner, repoName, prNumber, authUser); err != nil {
+				slog.Warn("could not self-request as reviewer", "user", authUser, "error", err)
+			} else {
+				slog.Debug("self-requested as reviewer", "user", authUser, "pr", prNumber)

@@ -443,0 +486,4 @@
+				slog.Warn("could not self-request as reviewer", "user", authUser, "error", err)
+			} else {
+				slog.Debug("self-requested as reviewer", "user", authUser, "pr", prNumber)
+			}

@@ -383,4 +384,17 @@ func (c *Client) doRequestWithBody(ctx context.Context, method, reqURL string, r
 		opts.extraHeaders = map[string]string{"Content-Type": "application/json"}
 	}
 	return c.doRequestCore(ctx, method, reqURL, opts)
+

@@ -498,0 +591,4 @@
+			if err := underlying.ResolveComment(ctx, owner, repoName, c.ID); err != nil {
+				slog.Debug("could not resolve inline comment", "comment_id", c.ID, "error", err)
+				failed++
+			} else {

@@ -83,0 +94,4 @@
+	//
+	// ORDERING: This must remain AFTER vcsURL's flag.String declaration and BEFORE
+	// flag.Parse(). The *vcsURL dereference captures the env-var-resolved default
+	// at registration time; moving flag.Parse() above this line would break it.

@@ -144,0 +182,4 @@
+	}
+	slog.Info("VCS client initialized", "provider", *provider)
+
+	// Initialize LLM client

@@ -441,2 +479,2 @@
-		} else {
-			slog.Debug("self-requested as reviewer", "user", authUser, "pr", prNumber)
+	// Self-request as reviewer (Gitea-specific; ensures we appear in required-reviewer checks)
+	if giteaAdapter, ok := client.(*gitea.Adapter); ok {

@@ -504,10 +415,56 @@ func TestIsPatternFile(t *testing.T) {
 	}

@@ -83,2 +98,4 @@
+	flag.StringVar(vcsURL, "gitea-url", *vcsURL, "Deprecated: use --vcs-url instead")
+
 	flag.Parse()
 

@@ -444,3 +492,4 @@
+		slog.Debug("RequestReviewer not supported for provider, skipping")
 	}
 
 	// POST new review

@@ -498,0 +573,4 @@
+		supersededBody := buildSupersededBody(oldReview.Body, oldReview.CommitID, newReviewURL, sentinel)
+		if err := underlying.EditComment(ctx, owner, repoName, cid, supersededBody); err != nil {
+			slog.Warn("could not mark old review as superseded", "review_id", oldReview.ID, "comment_id", cid, "error", err)
+			continue

@@ -498,0 +584,4 @@
+			continue
+		}
+		resolved, failed := 0, 0
+		for _, c := range oldComments {

@@ -498,0 +571,4 @@
+			continue
+		}
+		supersededBody := buildSupersededBody(oldReview.Body, oldReview.CommitID, newReviewURL, sentinel)
+		if err := underlying.EditComment(ctx, owner, repoName, cid, supersededBody); err != nil {

@@ -80,6 +85,18 @@ func main() {
 	aicoreAPIURL := flag.String("aicore-api-url", envOrDefault("AICORE_API_URL", ""), "SAP AI Core API URL (for provider=aicore)")
 	aicoreResourceGroup := flag.String("aicore-resource-group", envOrDefault("AICORE_RESOURCE_GROUP", "default"), "SAP AI Core resource group (for provider=aicore)")
 

@@ -144,3 +185,4 @@
+	// Initialize LLM client
 	llmClient := llm.NewClient(*llmBaseURL, *llmAPIKey, *llmModel)
 	if *llmTemp < 0 || *llmTemp > 2 {
 		slog.Error("invalid LLM temperature", "temperature", *llmTemp, "range", "0-2")

@@ -498,0 +554,4 @@
+	}
+
+	// The type assertion below is guaranteed to succeed: the caller's provider switch
+	// ensures we only reach this point when provider == "gitea", and the gitea provider

@@ -504,10 +415,56 @@ func TestIsPatternFile(t *testing.T) {
 	}

@@ -148,1 +149,4 @@
 		err = dec.Decode(&p)
+		if err == nil {
+			// Reject trailing content after the first valid JSON object.
+			// Without this check, input like `{"name":"x"}garbage` would

@@ -524,11 +636,25 @@ func fetchFileContext(ctx context.Context, client *gitea.Client, owner, repo, re
 // patternsRepo is comma-separated list of owner/name repos.

@@ -83,0 +94,4 @@
+	//
+	// ORDERING: This must remain AFTER vcsURL's flag.String declaration and BEFORE
+	// flag.Parse(). The *vcsURL dereference captures the env-var-resolved default
+	// at registration time; moving flag.Parse() above this line would break it.

@@ -144,0 +181,4 @@
+		client = github.NewClient(*reviewerToken, ghBaseURL)
+	}
+	slog.Info("VCS client initialized", "provider", *provider)
+

@@ -444,2 +491,4 @@
+	} else {
+		slog.Debug("RequestReviewer not supported for provider, skipping")
 	}
 

@@ -498,0 +531,4 @@
+// For GitHub: dismisses old reviews (vcsURL is unused in this path).
+// For Gitea: edits the review body with a link to the new review and resolves inline comments.
+//
+// The vcsURL parameter is only used in the Gitea path to construct review permalink URLs;

@@ -384,3 +385,15 @@ func (c *Client) doRequestWithBody(ctx context.Context, method, reqURL string, r
 	}
 	return c.doRequestCore(ctx, method, reqURL, opts)
 }
+

@@ -144,0 +176,4 @@
+	case "github":
+		ghBaseURL := *baseURL
+		if ghBaseURL == "" {
+			ghBaseURL = "https://api.github.com"

@@ -498,0 +545,4 @@
+			} else {
+				slog.Info("dismissed old review", "review_id", old.ID, "new_review_id", newReviewID, "pr", prNumber)
+			}
+		}

@@ -501,3 +613,3 @@
-func fetchFileContext(ctx context.Context, client *gitea.Client, owner, repo, ref string, files []gitea.ChangedFile) string {
+func fetchFileContext(ctx context.Context, client vcs.PRReader, owner, repo, ref string, files []vcs.ChangedFile) string {
 	var sb strings.Builder
 	for _, f := range files {

@@ -80,6 +84,10 @@ func main() {
 	aicoreAPIURL := flag.String("aicore-api-url", envOrDefault("AICORE_API_URL", ""), "SAP AI Core API URL (for provider=aicore)")
 	aicoreResourceGroup := flag.String("aicore-resource-group", envOrDefault("AICORE_RESOURCE_GROUP", "default"), "SAP AI Core resource group (for provider=aicore)")
 
+	// Backward-compatible alias: --gitea-url shares vcsURL's pointer (last flag wins).

@@ -492,2 +498,2 @@
-			if failed > 0 {
-				slog.Warn("some inline comments could not be resolved", "review_id", oldReview.ID, "failed", failed, "pr", prNumber)
+		if superseder, ok := client.(vcs.ReviewSuperseder); ok {
+			if err := superseder.SupersedeReviews(ctx, owner, repoName, prNumber, oldReviews, posted.ID, *vcsURL, sentinel); err != nil {

@@ -702,36 +721,13 @@ func validateWorkspacePath(path, pathName string) (string, error) {
 	return resolvedPath, nil

@@ -233,0 +254,4 @@
+	if !strings.HasPrefix(baseURL, "http://") && !strings.HasPrefix(baseURL, "https://") {
+		return fmt.Errorf("SupersedeReviews: baseURL must have http or https scheme, got %q", baseURL)
+	}
+

@@ -0,0 +7,4 @@
+
+const (
+	ProviderGitea  VCSProvider = "gitea"
+	ProviderGithub VCSProvider = "github"

@@ -80,6 +84,11 @@ func main() {
 	aicoreAPIURL := flag.String("aicore-api-url", envOrDefault("AICORE_API_URL", ""), "SAP AI Core API URL (for provider=aicore)")

@@ -144,2 +172,4 @@
+
+	// Initialize LLM client
 	llmClient := llm.NewClient(*llmBaseURL, *llmAPIKey, *llmModel)
 	if *llmTemp < 0 || *llmTemp > 2 {

@@ -443,1 +477,4 @@
+			}
 		}
+	} else {
+		slog.Debug("RequestReviewer not supported for provider, skipping")

@@ -230,3 +233,84 @@ func (a *Adapter) DismissReview(ctx context.Context, owner, repo string, number
 func (a *Adapter) GetAuthenticatedUser(ctx context.Context) (string, error) {

@@ -387,0 +392,4 @@
+// (e.g. PostReview, DismissReview).
+func (c *Client) doJSONRequest(ctx context.Context, method, reqURL string, payload any) ([]byte, error) {
+	jsonBody, err := json.Marshal(payload)
+	if err != nil {

@@ -144,0 +167,4 @@
+		client = github.NewClient(*reviewerToken, *baseURL)
+	default:
+		panic("unreachable: provider validation should have caught " + vcsProvider.String())
+	}

@@ -431,74 +464,63 @@ func main() {
 		}
 	}