v1.0.1

src/github/api/client.ts

@@ -1,20 +1,17 @@
-import { Octokit } from "@octokit/rest";
-import { graphql } from "@octokit/graphql";
-import { GITHUB_API_URL } from "./config";
+import { GiteaApiClient, createGiteaClient } from "./gitea-client";
 
-export type Octokits = {
-  rest: Octokit;
-  graphql: typeof graphql;
+export type GitHubClient = {
+  api: GiteaApiClient;
 };
 
-export function createOctokit(token: string): Octokits {
+export function createClient(token: string): GitHubClient {
+  // Use the GITEA_API_URL environment variable if provided
+  const apiUrl = process.env.GITEA_API_URL;
+  console.log(
+    `Creating client with API URL: ${apiUrl || "default (https://api.github.com)"}`,
+  );
+
   return {
-    rest: new Octokit({ auth: token }),
-    graphql: graphql.defaults({
-      baseUrl: GITHUB_API_URL,
-      headers: {
-        authorization: `token ${token}`,
-      },
-    }),
+    api: apiUrl ? new GiteaApiClient(token, apiUrl) : createGiteaClient(token),
   };
 }

src/github/api/config.ts

@@ -1,4 +1,14 @@
-export const GITHUB_API_URL =
-  process.env.GITHUB_API_URL || "https://api.github.com";
-export const GITHUB_SERVER_URL =
-  process.env.GITHUB_SERVER_URL || "https://github.com";
+export const GITEA_API_URL =
+  process.env.GITEA_API_URL || "https://api.github.com";
+
+// Derive server URL from API URL for Gitea instances
+function deriveServerUrl(apiUrl: string): string {
+  if (apiUrl.includes("api.github.com")) {
+    return "https://github.com";
+  }
+  // For Gitea, remove /api/v1 from the API URL to get the server URL
+  return apiUrl.replace(/\/api\/v1\/?$/, "");
+}
+
+export const GITEA_SERVER_URL =
+  process.env.GITEA_SERVER_URL || deriveServerUrl(GITEA_API_URL);

src/github/api/gitea-client.ts

@@ -0,0 +1,318 @@
+import fetch from "node-fetch";
+import { GITEA_API_URL } from "./config";
+
+export interface GiteaApiResponse<T = any> {
+  status: number;
+  data: T;
+  headers: Record<string, string>;
+}
+
+export interface GiteaApiError extends Error {
+  status: number;
+  response?: {
+    data: any;
+    status: number;
+    headers: Record<string, string>;
+  };
+}
+
+export class GiteaApiClient {
+  private baseUrl: string;
+  private token: string;
+
+  constructor(token: string, baseUrl: string = GITEA_API_URL) {
+    this.token = token;
+    this.baseUrl = baseUrl.replace(/\/+$/, ""); // Remove trailing slashes
+  }
+
+  getBaseUrl(): string {
+    return this.baseUrl;
+  }
+
+  private async request<T = any>(
+    method: string,
+    endpoint: string,
+    body?: any,
+  ): Promise<GiteaApiResponse<T>> {
+    const url = `${this.baseUrl}${endpoint}`;
+    console.log(`Making ${method} request to: ${url}`);
+
+    const headers: Record<string, string> = {
+      "Content-Type": "application/json",
+      Authorization: `token ${this.token}`,
+    };
+
+    const options: any = {
+      method,
+      headers,
+    };
+
+    if (body && (method === "POST" || method === "PUT" || method === "PATCH")) {
+      options.body = JSON.stringify(body);
+    }
+
+    try {
+      const response = await fetch(url, options);
+
+      let responseData: any = null;
+      const contentType = response.headers.get("content-type");
+
+      // Only try to parse JSON if the response has JSON content type
+      if (contentType && contentType.includes("application/json")) {
+        try {
+          responseData = await response.json();
+        } catch (parseError) {
+          console.warn(`Failed to parse JSON response: ${parseError}`);
+          responseData = await response.text();
+        }
+      } else {
+        responseData = await response.text();
+      }
+
+      if (!response.ok) {
+        const errorMessage =
+          typeof responseData === "object" && responseData.message
+            ? responseData.message
+            : responseData || response.statusText;
+
+        const error = new Error(
+          `HTTP ${response.status}: ${errorMessage}`,
+        ) as GiteaApiError;
+        error.status = response.status;
+        error.response = {
+          data: responseData,
+          status: response.status,
+          headers: Object.fromEntries(response.headers.entries()),
+        };
+        throw error;
+      }
+
+      return {
+        status: response.status,
+        data: responseData as T,
+        headers: Object.fromEntries(response.headers.entries()),
+      };
+    } catch (error) {
+      if (error instanceof Error && "status" in error) {
+        throw error;
+      }
+      throw new Error(`Request failed: ${error}`);
+    }
+  }
+
+  // Repository operations
+  async getRepo(owner: string, repo: string) {
+    return this.request("GET", `/api/v1/repos/${owner}/${repo}`);
+  }
+
+  // Simple test endpoint to verify API connectivity
+  async testConnection() {
+    return this.request("GET", "/api/v1/version");
+  }
+
+  async getBranch(owner: string, repo: string, branch: string) {
+    return this.request(
+      "GET",
+      `/api/v1/repos/${owner}/${repo}/branches/${encodeURIComponent(branch)}`,
+    );
+  }
+
+  async createBranch(
+    owner: string,
+    repo: string,
+    newBranch: string,
+    fromBranch: string,
+  ) {
+    return this.request("POST", `/api/v1/repos/${owner}/${repo}/branches`, {
+      new_branch_name: newBranch,
+      old_branch_name: fromBranch,
+    });
+  }
+
+  async listBranches(owner: string, repo: string) {
+    return this.request("GET", `/api/v1/repos/${owner}/${repo}/branches`);
+  }
+
+  // Issue operations
+  async getIssue(owner: string, repo: string, issueNumber: number) {
+    return this.request(
+      "GET",
+      `/api/v1/repos/${owner}/${repo}/issues/${issueNumber}`,
+    );
+  }
+
+  async listIssueComments(owner: string, repo: string, issueNumber: number) {
+    return this.request(
+      "GET",
+      `/api/v1/repos/${owner}/${repo}/issues/${issueNumber}/comments`,
+    );
+  }
+
+  async createIssueComment(
+    owner: string,
+    repo: string,
+    issueNumber: number,
+    body: string,
+  ) {
+    return this.request(
+      "POST",
+      `/api/v1/repos/${owner}/${repo}/issues/${issueNumber}/comments`,
+      {
+        body,
+      },
+    );
+  }
+
+  async updateIssueComment(
+    owner: string,
+    repo: string,
+    commentId: number,
+    body: string,
+  ) {
+    return this.request(
+      "PATCH",
+      `/api/v1/repos/${owner}/${repo}/issues/comments/${commentId}`,
+      {
+        body,
+      },
+    );
+  }
+
+  // Pull request operations
+  async getPullRequest(owner: string, repo: string, prNumber: number) {
+    return this.request(
+      "GET",
+      `/api/v1/repos/${owner}/${repo}/pulls/${prNumber}`,
+    );
+  }
+
+  async listPullRequestFiles(owner: string, repo: string, prNumber: number) {
+    return this.request(
+      "GET",
+      `/api/v1/repos/${owner}/${repo}/pulls/${prNumber}/files`,
+    );
+  }
+
+  async listPullRequestComments(owner: string, repo: string, prNumber: number) {
+    return this.request(
+      "GET",
+      `/api/v1/repos/${owner}/${repo}/pulls/${prNumber}/comments`,
+    );
+  }
+
+  async createPullRequestComment(
+    owner: string,
+    repo: string,
+    prNumber: number,
+    body: string,
+  ) {
+    return this.request(
+      "POST",
+      `/api/v1/repos/${owner}/${repo}/pulls/${prNumber}/comments`,
+      {
+        body,
+      },
+    );
+  }
+
+  // File operations
+  async getFileContents(
+    owner: string,
+    repo: string,
+    path: string,
+    ref?: string,
+  ) {
+    let endpoint = `/api/v1/repos/${owner}/${repo}/contents/${encodeURIComponent(path)}`;
+    if (ref) {
+      endpoint += `?ref=${encodeURIComponent(ref)}`;
+    }
+    return this.request("GET", endpoint);
+  }
+
+  async createFile(
+    owner: string,
+    repo: string,
+    path: string,
+    content: string,
+    message: string,
+    branch?: string,
+  ) {
+    const body: any = {
+      message,
+      content: Buffer.from(content).toString("base64"),
+    };
+
+    if (branch) {
+      body.branch = branch;
+    }
+
+    return this.request(
+      "POST",
+      `/api/v1/repos/${owner}/${repo}/contents/${encodeURIComponent(path)}`,
+      body,
+    );
+  }
+
+  async updateFile(
+    owner: string,
+    repo: string,
+    path: string,
+    content: string,
+    message: string,
+    sha: string,
+    branch?: string,
+  ) {
+    const body: any = {
+      message,
+      content: Buffer.from(content).toString("base64"),
+      sha,
+    };
+
+    if (branch) {
+      body.branch = branch;
+    }
+
+    return this.request(
+      "PUT",
+      `/api/v1/repos/${owner}/${repo}/contents/${encodeURIComponent(path)}`,
+      body,
+    );
+  }
+
+  async deleteFile(
+    owner: string,
+    repo: string,
+    path: string,
+    message: string,
+    sha: string,
+    branch?: string,
+  ) {
+    const body: any = {
+      message,
+      sha,
+    };
+
+    if (branch) {
+      body.branch = branch;
+    }
+
+    return this.request(
+      "DELETE",
+      `/api/v1/repos/${owner}/${repo}/contents/${encodeURIComponent(path)}`,
+      body,
+    );
+  }
+
+  // Generic request method for other operations
+  async customRequest<T = any>(
+    method: string,
+    endpoint: string,
+    body?: any,
+  ): Promise<GiteaApiResponse<T>> {
+    return this.request<T>(method, endpoint, body);
+  }
+}
+
+export function createGiteaClient(token: string): GiteaApiClient {
+  return new GiteaApiClient(token);
+}

src/github/data/fetcher.ts

@@ -5,16 +5,13 @@ import type {
   GitHubComment,
   GitHubFile,
   GitHubReview,
-  PullRequestQueryResponse,
-  IssueQueryResponse,
 } from "../types";
-import { PR_QUERY, ISSUE_QUERY } from "../api/queries/github";
-import type { Octokits } from "../api/client";
+import type { GitHubClient } from "../api/client";
 import { downloadCommentImages } from "../utils/image-downloader";
 import type { CommentWithImages } from "../utils/image-downloader";
 
 type FetchDataParams = {
-  octokits: Octokits;
+  client: GitHubClient;
   repository: string;
   prNumber: string;
   isPR: boolean;
@@ -34,7 +31,7 @@ export type FetchDataResult = {
 };
 
 export async function fetchGitHubData({
-  octokits,
+  client,
   repository,
   prNumber,
   isPR,
@@ -50,46 +47,104 @@ export async function fetchGitHubData({
   let reviewData: { nodes: GitHubReview[] } | null = null;
 
   try {
+    // Use REST API for all requests (works with both GitHub and Gitea)
     if (isPR) {
-      // Fetch PR data with all comments and file information
-      const prResult = await octokits.graphql<PullRequestQueryResponse>(
-        PR_QUERY,
-        {
-          owner,
-          repo,
-          number: parseInt(prNumber),
-        },
+      console.log(`Fetching PR #${prNumber} data using REST API`);
+      const prResponse = await client.api.getPullRequest(
+        owner,
+        repo,
+        parseInt(prNumber),
       );
 
-      if (prResult.repository.pullRequest) {
-        const pullRequest = prResult.repository.pullRequest;
-        contextData = pullRequest;
-        changedFiles = pullRequest.files.nodes || [];
-        comments = pullRequest.comments?.nodes || [];
-        reviewData = pullRequest.reviews || [];
+      contextData = {
+        title: prResponse.data.title,
+        body: prResponse.data.body || "",
+        author: { login: prResponse.data.user?.login || "" },
+        baseRefName: prResponse.data.base.ref,
+        headRefName: prResponse.data.head.ref,
+        headRefOid: prResponse.data.head.sha,
+        createdAt: prResponse.data.created_at,
+        additions: prResponse.data.additions || 0,
+        deletions: prResponse.data.deletions || 0,
+        state: prResponse.data.state.toUpperCase(),
+        commits: { totalCount: 0, nodes: [] },
+        files: { nodes: [] },
+        comments: { nodes: [] },
+        reviews: { nodes: [] },
+      };
 
-        console.log(`Successfully fetched PR #${prNumber} data`);
-      } else {
-        throw new Error(`PR #${prNumber} not found`);
+      // Fetch comments separately
+      try {
+        const commentsResponse = await client.api.listIssueComments(
+          owner,
+          repo,
+          parseInt(prNumber),
+        );
+        comments = commentsResponse.data.map((comment: any) => ({
+          id: comment.id.toString(),
+          databaseId: comment.id.toString(),
+          body: comment.body || "",
+          author: { login: comment.user?.login || "" },
+          createdAt: comment.created_at,
+        }));
+      } catch (error) {
+        console.warn("Failed to fetch PR comments:", error);
+        comments = []; // Ensure we have an empty array
       }
-    } else {
-      // Fetch issue data
-      const issueResult = await octokits.graphql<IssueQueryResponse>(
-        ISSUE_QUERY,
-        {
+
+      // Try to fetch files
+      try {
+        const filesResponse = await client.api.listPullRequestFiles(
           owner,
           repo,
-          number: parseInt(prNumber),
-        },
+          parseInt(prNumber),
+        );
+        changedFiles = filesResponse.data.map((file: any) => ({
+          path: file.filename,
+          additions: file.additions || 0,
+          deletions: file.deletions || 0,
+          changeType: file.status || "modified",
+        }));
+      } catch (error) {
+        console.warn("Failed to fetch PR files:", error);
+        changedFiles = []; // Ensure we have an empty array
+      }
+
+      reviewData = { nodes: [] }; // Simplified for Gitea
+    } else {
+      console.log(`Fetching issue #${prNumber} data using REST API`);
+      const issueResponse = await client.api.getIssue(
+        owner,
+        repo,
+        parseInt(prNumber),
       );
 
-      if (issueResult.repository.issue) {
-        contextData = issueResult.repository.issue;
-        comments = contextData?.comments?.nodes || [];
+      contextData = {
+        title: issueResponse.data.title,
+        body: issueResponse.data.body || "",
+        author: { login: issueResponse.data.user?.login || "" },
+        createdAt: issueResponse.data.created_at,
+        state: issueResponse.data.state.toUpperCase(),
+        comments: { nodes: [] },
+      };
 
-        console.log(`Successfully fetched issue #${prNumber} data`);
-      } else {
-        throw new Error(`Issue #${prNumber} not found`);
+      // Fetch comments
+      try {
+        const commentsResponse = await client.api.listIssueComments(
+          owner,
+          repo,
+          parseInt(prNumber),
+        );
+        comments = commentsResponse.data.map((comment: any) => ({
+          id: comment.id.toString(),
+          databaseId: comment.id.toString(),
+          body: comment.body || "",
+          author: { login: comment.user?.login || "" },
+          createdAt: comment.created_at,
+        }));
+      } catch (error) {
+        console.warn("Failed to fetch issue comments:", error);
+        comments = []; // Ensure we have an empty array
       }
     }
   } catch (error) {
@@ -177,7 +232,7 @@ export async function fetchGitHubData({
   ];
 
   const imageUrlMap = await downloadCommentImages(
-    octokits,
+    client,
     owner,
     repo,
     allComments,

src/github/operations/branch-cleanup.ts

@@ -1,8 +1,14 @@
-import type { Octokits } from "../api/client";
-import { GITHUB_SERVER_URL } from "../api/config";
+import type { GitHubClient } from "../api/client";
+import { GITEA_SERVER_URL } from "../api/config";
+import {
+  branchHasChanges,
+  fetchBranch,
+  branchExists,
+  remoteBranchExists,
+} from "../utils/local-git";
 
 export async function checkAndDeleteEmptyBranch(
-  octokit: Octokits,
+  client: GitHubClient,
   owner: string,
   repo: string,
   claudeBranch: string | undefined,
@@ -12,47 +18,128 @@ export async function checkAndDeleteEmptyBranch(
   let shouldDeleteBranch = false;
 
   if (claudeBranch) {
-    // Check if Claude made any commits to the branch
-    try {
-      const { data: comparison } =
-        await octokit.rest.repos.compareCommitsWithBasehead({
-          owner,
-          repo,
-          basehead: `${baseBranch}...${claudeBranch}`,
-        });
+    // Check if we're using Gitea or GitHub
+    const giteaApiUrl = process.env.GITEA_API_URL?.trim();
+    const isGitea =
+      giteaApiUrl &&
+      giteaApiUrl !== "" &&
+      !giteaApiUrl.includes("api.github.com") &&
+      !giteaApiUrl.includes("github.com");
 
-      // If there are no commits, mark branch for deletion
-      if (comparison.total_commits === 0) {
-        console.log(
-          `Branch ${claudeBranch} has no commits from Claude, will delete it`,
+    if (isGitea) {
+      // Use local git operations for Gitea
+      console.log("Using local git commands for branch check (Gitea mode)");
+
+      try {
+        // Fetch latest changes from remote
+        await fetchBranch(claudeBranch);
+        await fetchBranch(baseBranch);
+
+        // Check if branch exists and has changes
+        const { hasChanges, branchSha, baseSha } = await branchHasChanges(
+          claudeBranch,
+          baseBranch,
         );
-        shouldDeleteBranch = true;
-      } else {
-        // Only add branch link if there are commits
-        const branchUrl = `${GITHUB_SERVER_URL}/${owner}/${repo}/tree/${claudeBranch}`;
+
+        if (branchSha && baseSha) {
+          if (hasChanges) {
+            console.log(
+              `Branch ${claudeBranch} appears to have commits (different SHA from base)`,
+            );
+            const branchUrl = `${GITEA_SERVER_URL}/${owner}/${repo}/src/branch/${claudeBranch}`;
+            branchLink = `\n[View branch](${branchUrl})`;
+          } else {
+            console.log(
+              `Branch ${claudeBranch} has same SHA as base, marking for deletion`,
+            );
+            shouldDeleteBranch = true;
+          }
+        } else {
+          // If we can't get SHAs, check if branch exists at all
+          const localExists = await branchExists(claudeBranch);
+          const remoteExists = await remoteBranchExists(claudeBranch);
+
+          if (localExists || remoteExists) {
+            console.log(
+              `Branch ${claudeBranch} exists but SHA comparison failed, assuming it has commits`,
+            );
+            const branchUrl = `${GITEA_SERVER_URL}/${owner}/${repo}/src/branch/${claudeBranch}`;
+            branchLink = `\n[View branch](${branchUrl})`;
+          } else {
+            console.log(
+              `Branch ${claudeBranch} does not exist yet - this is normal during workflow`,
+            );
+            branchLink = "";
+          }
+        }
+      } catch (error: any) {
+        console.error("Error checking branch with git commands:", error);
+        // For errors, assume the branch has commits to be safe
+        console.log("Assuming branch exists due to git command error");
+        const branchUrl = `${GITEA_SERVER_URL}/${owner}/${repo}/src/branch/${claudeBranch}`;
         branchLink = `\n[View branch](${branchUrl})`;
       }
-    } catch (error) {
-      console.error("Error checking for commits on Claude branch:", error);
-      // If we can't check, assume the branch has commits to be safe
-      const branchUrl = `${GITHUB_SERVER_URL}/${owner}/${repo}/tree/${claudeBranch}`;
-      branchLink = `\n[View branch](${branchUrl})`;
+    } else {
+      // Use API calls for GitHub
+      console.log("Using API calls for branch check (GitHub mode)");
+
+      try {
+        // Get the branch info to see if it exists and has commits
+        const branchResponse = await client.api.getBranch(
+          owner,
+          repo,
+          claudeBranch,
+        );
+
+        // Get base branch info for comparison
+        const baseResponse = await client.api.getBranch(
+          owner,
+          repo,
+          baseBranch,
+        );
+
+        const branchSha = branchResponse.data.commit.sha;
+        const baseSha = baseResponse.data.commit.sha;
+
+        // If SHAs are different, assume there are commits
+        if (branchSha !== baseSha) {
+          console.log(
+            `Branch ${claudeBranch} appears to have commits (different SHA from base)`,
+          );
+          const branchUrl = `${GITEA_SERVER_URL}/${owner}/${repo}/src/branch/${claudeBranch}`;
+          branchLink = `\n[View branch](${branchUrl})`;
+        } else {
+          console.log(
+            `Branch ${claudeBranch} has same SHA as base, marking for deletion`,
+          );
+          shouldDeleteBranch = true;
+        }
+      } catch (error: any) {
+        console.error("Error checking branch:", error);
+
+        // Handle 404 specifically - branch doesn't exist
+        if (error.status === 404) {
+          console.log(
+            `Branch ${claudeBranch} does not exist yet - this is normal during workflow`,
+          );
+          // Don't add branch link since branch doesn't exist
+          branchLink = "";
+        } else {
+          // For other errors, assume the branch has commits to be safe
+          console.log("Assuming branch exists due to non-404 error");
+          const branchUrl = `${GITEA_SERVER_URL}/${owner}/${repo}/src/branch/${claudeBranch}`;
+          branchLink = `\n[View branch](${branchUrl})`;
+        }
+      }
     }
   }
 
   // Delete the branch if it has no commits
   if (shouldDeleteBranch && claudeBranch) {
-    try {
-      await octokit.rest.git.deleteRef({
-        owner,
-        repo,
-        ref: `heads/${claudeBranch}`,
-      });
-      console.log(`✅ Deleted empty branch: ${claudeBranch}`);
-    } catch (deleteError) {
-      console.error(`Failed to delete branch ${claudeBranch}:`, deleteError);
-      // Continue even if deletion fails
-    }
+    console.log(
+      `Skipping branch deletion - not reliably supported across all Git platforms: ${claudeBranch}`,
+    );
+    // Skip deletion to avoid compatibility issues
   }
 
   return { shouldDeleteBranch, branchLink };

src/github/operations/branch.ts

@@ -10,7 +10,7 @@ import { $ } from "bun";
 import * as core from "@actions/core";
 import type { ParsedGitHubContext } from "../context";
 import type { GitHubPullRequest } from "../types";
-import type { Octokits } from "../api/client";
+import type { GitHubClient } from "../api/client";
 import type { FetchDataResult } from "../data/fetcher";
 
 export type BranchInfo = {
@@ -20,7 +20,7 @@ export type BranchInfo = {
 };
 
 export async function setupBranch(
-  octokits: Octokits,
+  client: GitHubClient,
   githubData: FetchDataResult,
   context: ParsedGitHubContext,
 ): Promise<BranchInfo> {
@@ -70,10 +70,7 @@ export async function setupBranch(
     sourceBranch = baseBranch;
   } else {
     // No base branch provided, fetch the default branch to use as source
-    const repoResponse = await octokits.rest.repos.get({
-      owner,
-      repo,
-    });
+    const repoResponse = await client.api.getRepo(owner, repo);
     sourceBranch = repoResponse.data.default_branch;
   }
 
@@ -93,33 +90,62 @@ export async function setupBranch(
   const newBranch = `claude/${entityType}-${entityNumber}-${timestamp}`;
 
   try {
-    // Get the SHA of the source branch
-    const sourceBranchRef = await octokits.rest.git.getRef({
-      owner,
-      repo,
-      ref: `heads/${sourceBranch}`,
-    });
-
-    const currentSHA = sourceBranchRef.data.object.sha;
-
-    console.log(`Current SHA: ${currentSHA}`);
-
-    // Create branch using GitHub API
-    await octokits.rest.git.createRef({
-      owner,
-      repo,
-      ref: `refs/heads/${newBranch}`,
-      sha: currentSHA,
-    });
-
-    // Checkout the new branch (shallow fetch for performance)
-    await $`git fetch origin --depth=1 ${newBranch}`;
-    await $`git checkout ${newBranch}`;
-
+    // Use local git operations instead of API since Gitea's API is unreliable
     console.log(
-      `Successfully created and checked out new branch: ${newBranch}`,
+      `Setting up local git branch: ${newBranch} from: ${sourceBranch}`,
     );
 
+    // Ensure we're in the repository directory
+    const repoDir = process.env.GITHUB_WORKSPACE || process.cwd();
+    console.log(`Working in directory: ${repoDir}`);
+
+    try {
+      // Check if we're in a git repository
+      console.log(`Checking if we're in a git repository...`);
+      await $`git status`;
+
+      // Ensure we have the latest version of the source branch
+      console.log(`Fetching latest ${sourceBranch}...`);
+      await $`git fetch origin ${sourceBranch}`;
+
+      // Checkout the source branch
+      console.log(`Checking out ${sourceBranch}...`);
+      await $`git checkout ${sourceBranch}`;
+
+      // Pull latest changes
+      console.log(`Pulling latest changes for ${sourceBranch}...`);
+      await $`git pull origin ${sourceBranch}`;
+
+      // Create and checkout the new branch
+      console.log(`Creating new branch: ${newBranch}`);
+      await $`git checkout -b ${newBranch}`;
+
+      // Verify the branch was created
+      const currentBranch = await $`git branch --show-current`;
+      const branchName = currentBranch.text().trim();
+      console.log(`Current branch after creation: ${branchName}`);
+
+      if (branchName === newBranch) {
+        console.log(
+          `✅ Successfully created and checked out branch: ${newBranch}`,
+        );
+      } else {
+        throw new Error(
+          `Branch creation failed. Expected ${newBranch}, got ${branchName}`,
+        );
+      }
+    } catch (gitError: any) {
+      console.error(`❌ Git operations failed:`, gitError);
+      console.error(`Error message: ${gitError.message || gitError}`);
+
+      // This is a critical failure - the branch MUST be created for Claude to work
+      throw new Error(
+        `Failed to create branch ${newBranch}: ${gitError.message || gitError}`,
+      );
+    }
+
+    console.log(`Branch setup completed for: ${newBranch}`);
+
     // Set outputs for GitHub Actions
     core.setOutput("CLAUDE_BRANCH", newBranch);
     core.setOutput("BASE_BRANCH", sourceBranch);
@@ -129,7 +155,7 @@ export async function setupBranch(
       currentBranch: newBranch,
     };
   } catch (error) {
-    console.error("Error creating branch:", error);
+    console.error("Error setting up branch:", error);
     process.exit(1);
   }
 }

src/github/operations/comment-logic.ts

@@ -1,4 +1,4 @@
-import { GITHUB_SERVER_URL } from "../api/config";
+import { GITEA_SERVER_URL } from "../api/config";
 
 export type ExecutionDetails = {
   cost_usd?: number;
@@ -160,7 +160,7 @@ export function updateCommentBody(input: CommentUpdateInput): string {
       // Extract owner/repo from jobUrl
       const repoMatch = jobUrl.match(/github\.com\/([^\/]+)\/([^\/]+)\//);
       if (repoMatch) {
-        branchUrl = `${GITHUB_SERVER_URL}/${repoMatch[1]}/${repoMatch[2]}/tree/${finalBranchName}`;
+        branchUrl = `${GITEA_SERVER_URL}/${repoMatch[1]}/${repoMatch[2]}/src/branch/${finalBranchName}`;
       }
     }
 

src/github/operations/comments/common.ts

@@ -1,14 +1,19 @@
-import { GITHUB_SERVER_URL } from "../../api/config";
+import { GITEA_SERVER_URL } from "../../api/config";
+import { readFileSync } from "fs";
+import { join } from "path";
 
-export const SPINNER_HTML =
-  '<img src="https://github.com/user-attachments/assets/5ac382c7-e004-429b-8e35-7feb3e8f9c6f" width="14px" height="14px" style="vertical-align: middle; margin-left: 4px;" />';
+function getSpinnerHtml(): string {
+  return `<img src="https://raw.githubusercontent.com/markwylde/claude-code-gitea-action/refs/heads/gitea/assets/spinner.gif" width="14px" height="14px" style="vertical-align: middle; margin-left: 4px;" />`;
+}
+
+export const SPINNER_HTML = getSpinnerHtml();
 
 export function createJobRunLink(
   owner: string,
   repo: string,
   runId: string,
 ): string {
-  const jobRunUrl = `${GITHUB_SERVER_URL}/${owner}/${repo}/actions/runs/${runId}`;
+  const jobRunUrl = `${GITEA_SERVER_URL}/${owner}/${repo}/actions/runs/${runId}`;
   return `[View job run](${jobRunUrl})`;
 }
 
@@ -17,7 +22,7 @@ export function createBranchLink(
   repo: string,
   branchName: string,
 ): string {
-  const branchUrl = `${GITHUB_SERVER_URL}/${owner}/${repo}/tree/${branchName}`;
+  const branchUrl = `${GITEA_SERVER_URL}/${owner}/${repo}/src/branch/${branchName}/`;
   return `\n[View branch](${branchUrl})`;
 }
 

src/github/operations/comments/create-initial.ts

@@ -11,10 +11,10 @@ import {
   isPullRequestReviewCommentEvent,
   type ParsedGitHubContext,
 } from "../../context";
-import type { Octokit } from "@octokit/rest";
+import type { GiteaApiClient } from "../../api/gitea-client";
 
 export async function createInitialComment(
-  octokit: Octokit,
+  api: GiteaApiClient,
   context: ParsedGitHubContext,
 ) {
   const { owner, repo } = context.repository;
@@ -25,23 +25,30 @@ export async function createInitialComment(
   try {
     let response;
 
+    console.log(
+      `Creating comment for ${context.isPR ? "PR" : "issue"} #${context.entityNumber}`,
+    );
+    console.log(`Repository: ${owner}/${repo}`);
+
     // Only use createReplyForReviewComment if it's a PR review comment AND we have a comment_id
     if (isPullRequestReviewCommentEvent(context)) {
-      response = await octokit.rest.pulls.createReplyForReviewComment({
-        owner,
-        repo,
-        pull_number: context.entityNumber,
-        comment_id: context.payload.comment.id,
-        body: initialBody,
-      });
+      console.log(`Creating PR review comment reply`);
+      response = await api.customRequest(
+        "POST",
+        `/api/v1/repos/${owner}/${repo}/pulls/${context.entityNumber}/comments/${context.payload.comment.id}/replies`,
+        {
+          body: initialBody,
+        },
+      );
     } else {
       // For all other cases (issues, issue comments, or missing comment_id)
-      response = await octokit.rest.issues.createComment({
+      console.log(`Creating issue comment via API`);
+      response = await api.createIssueComment(
         owner,
         repo,
-        issue_number: context.entityNumber,
-        body: initialBody,
-      });
+        context.entityNumber,
+        initialBody,
+      );
     }
 
     // Output the comment ID for downstream steps using GITHUB_OUTPUT
@@ -54,12 +61,12 @@ export async function createInitialComment(
 
     // Always fall back to regular issue comment if anything fails
     try {
-      const response = await octokit.rest.issues.createComment({
+      const response = await api.createIssueComment(
         owner,
         repo,
-        issue_number: context.entityNumber,
-        body: initialBody,
-      });
+        context.entityNumber,
+        initialBody,
+      );
 
       const githubOutput = process.env.GITHUB_OUTPUT!;
       appendFileSync(githubOutput, `claude_comment_id=${response.data.id}\n`);

src/github/operations/comments/update-with-branch.ts

@@ -10,14 +10,14 @@ import {
   createBranchLink,
   createCommentBody,
 } from "./common";
-import { type Octokits } from "../../api/client";
+import { type GitHubClient } from "../../api/client";
 import {
   isPullRequestReviewCommentEvent,
   type ParsedGitHubContext,
 } from "../../context";
 
 export async function updateTrackingComment(
-  octokit: Octokits,
+  client: GitHubClient,
   context: ParsedGitHubContext,
   commentId: number,
   branch?: string,
@@ -38,21 +38,17 @@ export async function updateTrackingComment(
   try {
     if (isPullRequestReviewCommentEvent(context)) {
       // For PR review comments (inline comments), use the pulls API
-      await octokit.rest.pulls.updateReviewComment({
-        owner,
-        repo,
-        comment_id: commentId,
-        body: updatedBody,
-      });
+      await client.api.customRequest(
+        "PATCH",
+        `/api/v1/repos/${owner}/${repo}/pulls/comments/${commentId}`,
+        {
+          body: updatedBody,
+        },
+      );
       console.log(`✅ Updated PR review comment ${commentId} with branch link`);
     } else {
       // For all other comments, use the issues API
-      await octokit.rest.issues.updateComment({
-        owner,
-        repo,
-        comment_id: commentId,
-        body: updatedBody,
-      });
+      await client.api.updateIssueComment(owner, repo, commentId, updatedBody);
       console.log(`✅ Updated issue comment ${commentId} with branch link`);
     }
   } catch (error) {

src/github/token.ts

@@ -2,96 +2,6 @@
 
 import * as core from "@actions/core";
 
-type RetryOptions = {
-  maxAttempts?: number;
-  initialDelayMs?: number;
-  maxDelayMs?: number;
-  backoffFactor?: number;
-};
-
-async function retryWithBackoff<T>(
-  operation: () => Promise<T>,
-  options: RetryOptions = {},
-): Promise<T> {
-  const {
-    maxAttempts = 3,
-    initialDelayMs = 5000,
-    maxDelayMs = 20000,
-    backoffFactor = 2,
-  } = options;
-
-  let delayMs = initialDelayMs;
-  let lastError: Error | undefined;
-
-  for (let attempt = 1; attempt <= maxAttempts; attempt++) {
-    try {
-      console.log(`Attempt ${attempt} of ${maxAttempts}...`);
-      return await operation();
-    } catch (error) {
-      lastError = error instanceof Error ? error : new Error(String(error));
-      console.error(`Attempt ${attempt} failed:`, lastError.message);
-
-      if (attempt < maxAttempts) {
-        console.log(`Retrying in ${delayMs / 1000} seconds...`);
-        await new Promise((resolve) => setTimeout(resolve, delayMs));
-        delayMs = Math.min(delayMs * backoffFactor, maxDelayMs);
-      }
-    }
-  }
-
-  console.error(`Operation failed after ${maxAttempts} attempts`);
-  throw lastError;
-}
-
-async function getOidcToken(): Promise<string> {
-  try {
-    const oidcToken = await core.getIDToken("claude-code-github-action");
-
-    return oidcToken;
-  } catch (error) {
-    console.error("Failed to get OIDC token:", error);
-    throw new Error(
-      "Could not fetch an OIDC token. Did you remember to add `id-token: write` to your workflow permissions?",
-    );
-  }
-}
-
-async function exchangeForAppToken(oidcToken: string): Promise<string> {
-  const response = await fetch(
-    "https://api.anthropic.com/api/github/github-app-token-exchange",
-    {
-      method: "POST",
-      headers: {
-        Authorization: `Bearer ${oidcToken}`,
-      },
-    },
-  );
-
-  if (!response.ok) {
-    const responseJson = (await response.json()) as {
-      error?: {
-        message?: string;
-      };
-    };
-    console.error(
-      `App token exchange failed: ${response.status} ${response.statusText} - ${responseJson?.error?.message ?? "Unknown error"}`,
-    );
-    throw new Error(`${responseJson?.error?.message ?? "Unknown error"}`);
-  }
-
-  const appTokenData = (await response.json()) as {
-    token?: string;
-    app_token?: string;
-  };
-  const appToken = appTokenData.token || appTokenData.app_token;
-
-  if (!appToken) {
-    throw new Error("App token not found in response");
-  }
-
-  return appToken;
-}
-
 export async function setupGitHubToken(): Promise<string> {
   try {
     // Check if GitHub token was provided as override
@@ -103,22 +13,21 @@ export async function setupGitHubToken(): Promise<string> {
       return providedToken;
     }
 
-    console.log("Requesting OIDC token...");
-    const oidcToken = await retryWithBackoff(() => getOidcToken());
-    console.log("OIDC token successfully obtained");
+    // Use the standard GITHUB_TOKEN from the workflow environment
+    const workflowToken = process.env.GITHUB_TOKEN;
 
-    console.log("Exchanging OIDC token for app token...");
-    const appToken = await retryWithBackoff(() =>
-      exchangeForAppToken(oidcToken),
+    if (workflowToken) {
+      console.log("Using workflow GITHUB_TOKEN for authentication");
+      core.setOutput("GITHUB_TOKEN", workflowToken);
+      return workflowToken;
+    }
+
+    throw new Error(
+      "No GitHub token available. Please provide a github_token input or ensure GITHUB_TOKEN is available in the workflow environment.",
     );
-    console.log("App token successfully obtained");
-
-    console.log("Using GITHUB_TOKEN from OIDC");
-    core.setOutput("GITHUB_TOKEN", appToken);
-    return appToken;
   } catch (error) {
     core.setFailed(
-      `Failed to setup GitHub token: ${error}.\n\nIf you instead wish to use this action with a custom GitHub token or custom GitHub app, provide a \`github_token\` in the \`uses\` section of the app in your workflow yml file.`,
+      `Failed to setup GitHub token: ${error}.\n\nPlease provide a \`github_token\` in the \`with\` section of the action in your workflow yml file, or ensure the workflow has access to the default GITHUB_TOKEN.`,
     );
     process.exit(1);
   }

src/github/utils/image-downloader.ts

@@ -1,12 +1,4 @@
-import fs from "fs/promises";
-import path from "path";
-import type { Octokits } from "../api/client";
-import { GITHUB_SERVER_URL } from "../api/config";
-
-const IMAGE_REGEX = new RegExp(
-  `!\\[[^\\]]*\\]\\((${GITHUB_SERVER_URL.replace(/[.*+?^${}()|[\]\\]/g, "\\$&")}\\/user-attachments\\/assets\\/[^)]+)\\)`,
-  "g",
-);
+import type { GitHubClient } from "../api/client";
 
 type IssueComment = {
   type: "issue_comment";
@@ -47,186 +39,15 @@ export type CommentWithImages =
   | PullRequestBody;
 
 export async function downloadCommentImages(
-  octokits: Octokits,
-  owner: string,
-  repo: string,
-  comments: CommentWithImages[],
+  _client: GitHubClient,
+  _owner: string,
+  _repo: string,
+  _comments: CommentWithImages[],
 ): Promise<Map<string, string>> {
-  const urlToPathMap = new Map<string, string>();
-  const downloadsDir = "/tmp/github-images";
-
-  await fs.mkdir(downloadsDir, { recursive: true });
-
-  const commentsWithImages: Array<{
-    comment: CommentWithImages;
-    urls: string[];
-  }> = [];
-
-  for (const comment of comments) {
-    const imageMatches = [...comment.body.matchAll(IMAGE_REGEX)];
-    const urls = imageMatches.map((match) => match[1] as string);
-
-    if (urls.length > 0) {
-      commentsWithImages.push({ comment, urls });
-      const id =
-        comment.type === "issue_body"
-          ? comment.issueNumber
-          : comment.type === "pr_body"
-            ? comment.pullNumber
-            : comment.id;
-      console.log(`Found ${urls.length} image(s) in ${comment.type} ${id}`);
-    }
-  }
-
-  // Process each comment with images
-  for (const { comment, urls } of commentsWithImages) {
-    try {
-      let bodyHtml: string | undefined;
-
-      // Get the HTML version based on comment type
-      switch (comment.type) {
-        case "issue_comment": {
-          const response = await octokits.rest.issues.getComment({
-            owner,
-            repo,
-            comment_id: parseInt(comment.id),
-            mediaType: {
-              format: "full+json",
-            },
-          });
-          bodyHtml = response.data.body_html;
-          break;
-        }
-        case "review_comment": {
-          const response = await octokits.rest.pulls.getReviewComment({
-            owner,
-            repo,
-            comment_id: parseInt(comment.id),
-            mediaType: {
-              format: "full+json",
-            },
-          });
-          bodyHtml = response.data.body_html;
-          break;
-        }
-        case "review_body": {
-          const response = await octokits.rest.pulls.getReview({
-            owner,
-            repo,
-            pull_number: parseInt(comment.pullNumber),
-            review_id: parseInt(comment.id),
-            mediaType: {
-              format: "full+json",
-            },
-          });
-          bodyHtml = response.data.body_html;
-          break;
-        }
-        case "issue_body": {
-          const response = await octokits.rest.issues.get({
-            owner,
-            repo,
-            issue_number: parseInt(comment.issueNumber),
-            mediaType: {
-              format: "full+json",
-            },
-          });
-          bodyHtml = response.data.body_html;
-          break;
-        }
-        case "pr_body": {
-          const response = await octokits.rest.pulls.get({
-            owner,
-            repo,
-            pull_number: parseInt(comment.pullNumber),
-            mediaType: {
-              format: "full+json",
-            },
-          });
-          // Type here seems to be wrong
-          bodyHtml = (response.data as any).body_html;
-          break;
-        }
-      }
-      if (!bodyHtml) {
-        const id =
-          comment.type === "issue_body"
-            ? comment.issueNumber
-            : comment.type === "pr_body"
-              ? comment.pullNumber
-              : comment.id;
-        console.warn(`No HTML body found for ${comment.type} ${id}`);
-        continue;
-      }
-
-      // Extract signed URLs from HTML
-      const signedUrlRegex =
-        /https:\/\/private-user-images\.githubusercontent\.com\/[^"]+\?jwt=[^"]+/g;
-      const signedUrls = bodyHtml.match(signedUrlRegex) || [];
-
-      // Download each image
-      for (let i = 0; i < Math.min(signedUrls.length, urls.length); i++) {
-        const signedUrl = signedUrls[i];
-        const originalUrl = urls[i];
-
-        if (!signedUrl || !originalUrl) {
-          continue;
-        }
-
-        // Check if we've already downloaded this URL
-        if (urlToPathMap.has(originalUrl)) {
-          continue;
-        }
-
-        const fileExtension = getImageExtension(originalUrl);
-        const filename = `image-${Date.now()}-${i}${fileExtension}`;
-        const localPath = path.join(downloadsDir, filename);
-
-        try {
-          console.log(`Downloading ${originalUrl}...`);
-
-          const imageResponse = await fetch(signedUrl);
-          if (!imageResponse.ok) {
-            throw new Error(
-              `HTTP ${imageResponse.status}: ${imageResponse.statusText}`,
-            );
-          }
-
-          const arrayBuffer = await imageResponse.arrayBuffer();
-          const buffer = Buffer.from(arrayBuffer);
-
-          await fs.writeFile(localPath, buffer);
-          console.log(`✓ Saved: ${localPath}`);
-
-          urlToPathMap.set(originalUrl, localPath);
-        } catch (error) {
-          console.error(`✗ Failed to download ${originalUrl}:`, error);
-        }
-      }
-    } catch (error) {
-      const id =
-        comment.type === "issue_body"
-          ? comment.issueNumber
-          : comment.type === "pr_body"
-            ? comment.pullNumber
-            : comment.id;
-      console.error(
-        `Failed to process images for ${comment.type} ${id}:`,
-        error,
-      );
-    }
-  }
-
-  return urlToPathMap;
-}
-
-function getImageExtension(url: string): string {
-  const urlParts = url.split("/");
-  const filename = urlParts[urlParts.length - 1];
-  if (!filename) {
-    throw new Error("Invalid URL: No filename found");
-  }
-
-  const match = filename.match(/\.(png|jpg|jpeg|gif|webp|svg)$/i);
-  return match ? match[0] : ".png";
+  // Temporarily simplified - return empty map to avoid Octokit dependencies
+  // TODO: Implement image downloading with direct Gitea API calls if needed
+  console.log(
+    "Image downloading temporarily disabled during Octokit migration",
+  );
+  return new Map<string, string>();
 }

src/github/utils/local-git.ts

@@ -0,0 +1,96 @@
+#!/usr/bin/env bun
+
+import { $ } from "bun";
+
+/**
+ * Check if a branch exists locally using git commands
+ */
+export async function branchExists(branchName: string): Promise<boolean> {
+  try {
+    await $`git show-ref --verify --quiet refs/heads/${branchName}`;
+    return true;
+  } catch {
+    return false;
+  }
+}
+
+/**
+ * Check if a remote branch exists using git commands
+ */
+export async function remoteBranchExists(branchName: string): Promise<boolean> {
+  try {
+    await $`git show-ref --verify --quiet refs/remotes/origin/${branchName}`;
+    return true;
+  } catch {
+    return false;
+  }
+}
+
+/**
+ * Get the SHA of a branch using git commands
+ */
+export async function getBranchSha(branchName: string): Promise<string | null> {
+  try {
+    // Try local branch first
+    if (await branchExists(branchName)) {
+      const result = await $`git rev-parse refs/heads/${branchName}`;
+      return result.text().trim();
+    }
+
+    // Try remote branch if local doesn't exist
+    if (await remoteBranchExists(branchName)) {
+      const result = await $`git rev-parse refs/remotes/origin/${branchName}`;
+      return result.text().trim();
+    }
+
+    return null;
+  } catch (error) {
+    console.error(`Error getting SHA for branch ${branchName}:`, error);
+    return null;
+  }
+}
+
+/**
+ * Check if a branch has commits different from base branch
+ */
+export async function branchHasChanges(
+  branchName: string,
+  baseBranch: string,
+): Promise<{
+  hasChanges: boolean;
+  branchSha: string | null;
+  baseSha: string | null;
+}> {
+  try {
+    const branchSha = await getBranchSha(branchName);
+    const baseSha = await getBranchSha(baseBranch);
+
+    if (!branchSha || !baseSha) {
+      return { hasChanges: false, branchSha, baseSha };
+    }
+
+    const hasChanges = branchSha !== baseSha;
+    return { hasChanges, branchSha, baseSha };
+  } catch (error) {
+    console.error(
+      `Error comparing branches ${branchName} and ${baseBranch}:`,
+      error,
+    );
+    return { hasChanges: false, branchSha: null, baseSha: null };
+  }
+}
+
+/**
+ * Fetch latest changes from remote to ensure we have up-to-date branch info
+ */
+export async function fetchBranch(branchName: string): Promise<boolean> {
+  try {
+    await $`git fetch origin ${branchName}`;
+    return true;
+  } catch (error) {
+    console.log(
+      `Could not fetch branch ${branchName} from remote (may not exist yet)`,
+    );
+    return false;
+  }
+}

src/github/validation/actor.ts

@@ -5,27 +5,53 @@
  * Prevents automated tools or bots from triggering Claude
  */
 
-import type { Octokit } from "@octokit/rest";
+import type { GiteaApiClient } from "../api/gitea-client";
 import type { ParsedGitHubContext } from "../context";
 
 export async function checkHumanActor(
-  octokit: Octokit,
+  api: GiteaApiClient,
   githubContext: ParsedGitHubContext,
 ) {
-  // Fetch user information from GitHub API
-  const { data: userData } = await octokit.users.getByUsername({
-    username: githubContext.actor,
-  });
+  // Check if we're in a Gitea environment
+  const isGitea =
+    process.env.GITEA_API_URL &&
+    !process.env.GITEA_API_URL.includes("api.github.com");
 
-  const actorType = userData.type;
-
-  console.log(`Actor type: ${actorType}`);
-
-  if (actorType !== "User") {
-    throw new Error(
-      `Workflow initiated by non-human actor: ${githubContext.actor} (type: ${actorType}).`,
+  if (isGitea) {
+    console.log(
+      `Detected Gitea environment, skipping actor type validation for: ${githubContext.actor}`,
     );
+    return;
   }
 
-  console.log(`Verified human actor: ${githubContext.actor}`);
+  try {
+    // Fetch user information from GitHub API
+    const response = await api.customRequest(
+      "GET",
+      `/api/v1/users/${githubContext.actor}`,
+    );
+    const userData = response.data;
+
+    const actorType = userData.type;
+
+    console.log(`Actor type: ${actorType}`);
+
+    if (actorType !== "User") {
+      throw new Error(
+        `Workflow initiated by non-human actor: ${githubContext.actor} (type: ${actorType}).`,
+      );
+    }
+
+    console.log(`Verified human actor: ${githubContext.actor}`);
+  } catch (error) {
+    console.warn(
+      `Failed to check actor type for ${githubContext.actor}:`,
+      error,
+    );
+
+    // For compatibility, assume human actor if API call fails
+    console.log(
+      `Assuming human actor due to API failure: ${githubContext.actor}`,
+    );
+  }
 }

src/github/validation/permissions.ts

@@ -1,28 +1,71 @@
 import * as core from "@actions/core";
 import type { ParsedGitHubContext } from "../context";
-import type { Octokit } from "@octokit/rest";
+import type { GiteaApiClient } from "../api/gitea-client";
 
 /**
  * Check if the actor has write permissions to the repository
- * @param octokit - The Octokit REST client
+ * @param api - The Gitea API client
  * @param context - The GitHub context
  * @returns true if the actor has write permissions, false otherwise
  */
 export async function checkWritePermissions(
-  octokit: Octokit,
+  api: GiteaApiClient,
   context: ParsedGitHubContext,
 ): Promise<boolean> {
   const { repository, actor } = context;
 
-  try {
-    core.info(`Checking permissions for actor: ${actor}`);
+  core.info(
+    `Environment check - GITEA_API_URL: ${process.env.GITEA_API_URL || "undefined"}`,
+  );
+  core.info(`API client base URL: ${api.getBaseUrl?.() || "undefined"}`);
 
+  // For Gitea compatibility, check if we're in a non-GitHub environment
+  const giteaApiUrl = process.env.GITEA_API_URL?.trim();
+  const isGitea =
+    giteaApiUrl &&
+    giteaApiUrl !== "" &&
+    !giteaApiUrl.includes("api.github.com") &&
+    !giteaApiUrl.includes("github.com");
+
+  if (isGitea) {
+    core.info(
+      `Detected Gitea environment (${giteaApiUrl}), assuming actor has permissions`,
+    );
+    return true;
+  }
+
+  // Also check if the API client base URL suggests we're using Gitea
+  const apiUrl = api.getBaseUrl?.() || "";
+  if (
+    apiUrl &&
+    !apiUrl.includes("api.github.com") &&
+    !apiUrl.includes("github.com")
+  ) {
+    core.info(
+      `Detected non-GitHub API URL (${apiUrl}), assuming actor has permissions`,
+    );
+    return true;
+  }
+
+  // If we're still here, we might be using GitHub's API, so attempt the permissions check
+  core.info(
+    `Proceeding with GitHub-style permission check for actor: ${actor}`,
+  );
+
+  // However, if the API client is clearly pointing to a non-GitHub URL, skip the check
+  if (apiUrl && apiUrl !== "https://api.github.com") {
+    core.info(
+      `API URL ${apiUrl} doesn't look like GitHub, assuming permissions and skipping check`,
+    );
+    return true;
+  }
+
+  try {
     // Check permissions directly using the permission endpoint
-    const response = await octokit.repos.getCollaboratorPermissionLevel({
-      owner: repository.owner,
-      repo: repository.repo,
-      username: actor,
-    });
+    const response = await api.customRequest(
+      "GET",
+      `/api/v1/repos/${repository.owner}/${repository.repo}/collaborators/${actor}/permission`,
+    );
 
     const permissionLevel = response.data.permission;
     core.info(`Permission level retrieved: ${permissionLevel}`);

src/github/validation/trigger.ts

@@ -15,6 +15,10 @@ export function checkContainsTrigger(context: ParsedGitHubContext): boolean {
     inputs: { assigneeTrigger, triggerPhrase, directPrompt },
   } = context;
 
+  console.log(
+    `Checking trigger: event=${context.eventName}, action=${context.eventAction}, phrase='${triggerPhrase}', assignee='${assigneeTrigger}', direct='${directPrompt}'`,
+  );
+
   // If direct prompt is provided, always trigger
   if (directPrompt) {
     console.log(`Direct prompt provided, triggering action`);
@@ -24,9 +28,13 @@ export function checkContainsTrigger(context: ParsedGitHubContext): boolean {
   // Check for assignee trigger
   if (isIssuesEvent(context) && context.eventAction === "assigned") {
     // Remove @ symbol from assignee_trigger if present
-    let triggerUser = assigneeTrigger.replace(/^@/, "");
+    let triggerUser = assigneeTrigger?.replace(/^@/, "") || "";
     const assigneeUsername = context.payload.issue.assignee?.login || "";
 
+    console.log(
+      `Checking assignee trigger: user='${triggerUser}', assignee='${assigneeUsername}'`,
+    );
+
     if (triggerUser && assigneeUsername === triggerUser) {
       console.log(`Issue assigned to trigger user '${triggerUser}'`);
       return true;