bump version

- Add getRepoSettings utility to fetch repo settings from Pullfrog API
- Integrate repo settings fetch in main.ts with agent validation
- Move workflows from lib/workflows.ts into action/workflows.ts
- Update workflow prompts to include comment management steps
- Add 'Prompt' workflow as fallback for general tasks
- Fix null check for response.body in claude agent tarball download
- Remove unused message handlers (tool_progress, auth_status)
- Fix tsconfig.json indentation consistency

.github/workflows/publish.yml

@@ -29,12 +29,12 @@ jobs:
       - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: "20"
+          node-version: "24"
           cache: "pnpm"
           registry-url: "https://registry.npmjs.org"
 
       - name: Install dependencies
-        run: pnpm install --no-frozen-lockfile
+        run: pnpm install --frozen-lockfile
 
       - name: Get package version
         id: version
@@ -60,21 +60,6 @@ jobs:
             echo "✅ Tag ${{ steps.version.outputs.tag }} does not exist - will create release"
           fi
 
-      - name: Verify built files are up to date
-        if: steps.check_tag.outputs.exists == 'false'
-        run: |
-          # Check if there are any uncommitted changes
-          if [[ -n $(git status --porcelain) ]]; then
-            echo "❌ Error: There are uncommitted changes. Built files should be committed via pre-commit hook."
-            git status
-            exit 1
-          fi
-          echo "✅ All built files are up to date"
-
-      - name: Build for npm with zshy
-        if: steps.check_tag.outputs.exists == 'false'
-        run: pnpm build:npm
-
       - name: Create and push tags
         if: steps.check_tag.outputs.exists == 'false'
         run: |

.husky/pre-commit

@@ -1,6 +1,12 @@
+# Ensure lockfile is up to date if package.json changed
+if git diff --cached --name-only | grep -q "^package.json$"; then
+  echo "🔒 Updating lockfile..."
+  pnpm lock
+fi
+
 # Build the action before committing
 echo "🔨 Building action..."
-npm run build
+pnpm build
 
-# Add the built files to the commit
-git add entry.cjs
+# Add the built files and lockfile to the commit
+git add entry.js mcp-server.js pnpm-lock.yaml

CLAUDE-ACTION.md

@@ -0,0 +1,299 @@
+# Claude Code Action Architecture & Flow
+
+This document provides a comprehensive overview of how the official (Anthropic) Claude Code Action works, from token exchange through post-run cleanup.
+
+## Overview
+
+The Claude Code Action is a sophisticated GitHub automation platform that enables Claude to interact with GitHub repositories through secure token exchange, intelligent mode detection, and comprehensive GitHub API integration.
+
+## High-Level Architecture
+
+```mermaid
+graph TD
+    Start([GitHub Action Triggered]) --> Setup[Setup Environment<br/>- Install Bun<br/>- Install Dependencies]
+    
+    Setup --> ParseContext[Parse GitHub Context<br/>- Extract event data<br/>- Parse inputs]
+    
+    ParseContext --> ModeDetection{Mode Detection}
+    
+    ModeDetection -->|Has explicit prompt| AgentMode[AGENT MODE<br/>Direct automation]
+    ModeDetection -->|@claude mention/assignment/label| TagMode[TAG MODE<br/>Interactive response]
+    ModeDetection -->|No trigger| DefaultAgent[Default to Agent<br/>(won't trigger)]
+    
+    %% Token Exchange Branch
+    AgentMode --> TokenExchange[Token Exchange Process]
+    TagMode --> TokenExchange
+    TokenExchange --> TokenMethod{Token Method}
+    
+    TokenMethod -->|Custom token provided| UseCustom[Use Custom GitHub Token]
+    TokenMethod -->|No custom token| OIDC[Generate OIDC Token<br/>core.getIDToken()]
+    
+    OIDC --> Exchange[Exchange OIDC for App Token<br/>api.anthropic.com/api/github/github-app-token-exchange]
+    Exchange --> CreateOctokit[Create Authenticated Octokit Client<br/>REST + GraphQL]
+    UseCustom --> CreateOctokit
+    
+    %% Permission Checks
+    CreateOctokit --> PermCheck[Check Write Permissions<br/>Only for entity contexts]
+    PermCheck -->|No permissions| PermFail[❌ Exit: No write access]
+    PermCheck -->|Has permissions| TriggerCheck{Check Trigger Conditions}
+    
+    %% Trigger Validation
+    TriggerCheck -->|Agent Mode| AgentTrigger{Has explicit prompt?}
+    TriggerCheck -->|Tag Mode| TagTrigger{Contains @claude mention<br/>or assignment/label?}
+    
+    AgentTrigger -->|No prompt| NoTrigger[❌ Skip: No trigger found]
+    AgentTrigger -->|Has prompt| PrepareAgent[Prepare Agent Mode]
+    TagTrigger -->|No mention| NoTrigger
+    TagTrigger -->|Has mention| PrepareTag[Prepare Tag Mode]
+    
+    %% Mode-Specific Preparation
+    PrepareAgent --> AgentPrep[Agent Mode Preparation<br/>- Create prompt file<br/>- Setup MCP servers<br/>- No tracking comment]
+    PrepareTag --> TagPrep[Tag Mode Preparation<br/>- Create tracking comment<br/>- Setup branches<br/>- Fetch GitHub data<br/>- Setup MCP servers]
+    
+    %% Data Fetching (Tag Mode)
+    TagPrep --> DataFetch[Fetch GitHub Data<br/>GraphQL + REST API]
+    DataFetch --> FetchWhat{What to fetch?}
+    
+    FetchWhat -->|Pull Request| PRData[PR Data:<br/>- Comments & reviews<br/>- Changed files + SHAs<br/>- Commit history<br/>- Author info]
+    FetchWhat -->|Issue| IssueData[Issue Data:<br/>- Comments<br/>- Issue details<br/>- Author info]
+    
+    PRData --> ProcessImages[Process Images<br/>Download & convert to base64]
+    IssueData --> ProcessImages
+    ProcessImages --> SetupBranch[Setup Branch<br/>- Create Claude branch<br/>- Configure git auth]
+    
+    %% MCP Server Setup
+    AgentPrep --> MCPSetup[Setup MCP Servers]
+    SetupBranch --> MCPSetup
+    
+    MCPSetup --> MCPServers{MCP Servers}
+    MCPServers --> GitHubActions[GitHub Actions Server<br/>- Workflow data<br/>- CI results]
+    MCPServers --> GitHubComments[GitHub Comment Server<br/>- Comment operations]
+    MCPServers --> GitHubFiles[GitHub File Ops Server<br/>- File operations<br/>- Branch management]
+    MCPServers --> GitHubInline[GitHub Inline Comment Server<br/>- PR review comments]
+    
+    GitHubActions --> PromptGen[Generate Prompt]
+    GitHubComments --> PromptGen
+    GitHubFiles --> PromptGen
+    GitHubInline --> PromptGen
+    
+    %% Prompt Generation
+    PromptGen --> PromptType{Prompt Type}
+    PromptType -->|Agent Mode| AgentPrompt[Agent Prompt:<br/>- Direct user prompt<br/>- Minimal context]
+    PromptType -->|Tag Mode| TagPrompt[Tag Prompt:<br/>- Rich GitHub context<br/>- PR/Issue details<br/>- Changed files<br/>- Comments & reviews<br/>- Commit instructions]
+    
+    AgentPrompt --> ClaudeRun[Run Claude Code]
+    TagPrompt --> ClaudeRun
+    
+    %% Claude Execution
+    ClaudeRun --> ClaudeExec[Claude Code Execution<br/>base-action/src/index.ts]
+    ClaudeExec --> ClaudeArgs[Prepare Claude Args<br/>- Prompt file path<br/>- Custom claude_args<br/>- Output format: stream-json]
+    
+    ClaudeArgs --> ClaudeProvider{Provider}
+    ClaudeProvider -->|Default| AnthropicAPI[Anthropic API<br/>ANTHROPIC_API_KEY]
+    ClaudeProvider -->|Bedrock| AWSBedrock[AWS Bedrock<br/>OIDC + AWS credentials]
+    ClaudeProvider -->|Vertex| GCPVertex[GCP Vertex AI<br/>OIDC + GCP credentials]
+    
+    AnthropicAPI --> ClaudeProcess[Spawn Claude Process<br/>- Named pipe for input<br/>- Stream JSON output]
+    AWSBedrock --> ClaudeProcess
+    GCPVertex --> ClaudeProcess
+    
+    ClaudeProcess --> ClaudeTools[Claude Tool Usage<br/>- MCP tools<br/>- File operations<br/>- GitHub API calls<br/>- Bash commands]
+    
+    ClaudeTools --> ClaudeOutput[Claude Output Processing<br/>- Capture execution log<br/>- Parse JSON stream<br/>- Extract metrics]
+    
+    %% Post-Run Actions
+    ClaudeOutput --> PostRun{Post-Run Actions}
+    
+    PostRun -->|Success| Success[✅ Success Path]
+    PostRun -->|Failure| Failure[❌ Failure Path]
+    
+    Success --> UpdateComment[Update Tracking Comment<br/>- Job run link<br/>- Branch link<br/>- PR link (if created)<br/>- Execution metrics]
+    Failure --> UpdateComment
+    
+    UpdateComment --> BranchCleanup[Branch Cleanup<br/>- Check for changes<br/>- Delete empty branches<br/>- Keep branches with commits]
+    
+    BranchCleanup --> FormatReport[Format Execution Report<br/>- Parse conversation turns<br/>- Format tool usage<br/>- Add to GitHub step summary]
+    
+    FormatReport --> RevokeToken[Revoke App Token<br/>DELETE /installation/token]
+    
+    RevokeToken --> End([Action Complete])
+```
+
+## Key Components
+
+### 1. Token Exchange Process
+
+The action uses a secure OIDC token exchange system:
+
+1. **OIDC Token Generation**: `core.getIDToken("claude-code-github-action")`
+2. **Token Exchange**: POST to `https://api.anthropic.com/api/github/github-app-token-exchange`
+3. **Authentication**: Creates authenticated Octokit clients for GitHub API access
+
+**Security Benefits:**
+- Repository-scoped access
+- Time-limited tokens
+- Permission-limited (only configured GitHub App permissions)
+- Automatic token masking in logs
+
+### 2. Mode Detection
+
+The action automatically detects the appropriate execution mode:
+
+#### **Agent Mode**
+- **Trigger**: Explicit `prompt` input provided
+- **Use Case**: Direct automation, custom workflows
+- **Behavior**: Minimal context, direct execution
+- **Tracking**: No tracking comments
+
+#### **Tag Mode**  
+- **Trigger**: @claude mentions, issue assignments, or labels
+- **Use Case**: Interactive GitHub responses
+- **Behavior**: Rich context, comprehensive GitHub data
+- **Tracking**: Creates and updates tracking comments
+
+### 3. Data Fetching (Tag Mode)
+
+When in Tag Mode, the action fetches comprehensive GitHub context:
+
+#### **Pull Request Data:**
+- Comments and reviews (including inline comments)
+- Changed files with SHAs
+- Commit history and metadata
+- Author information
+- File diff data
+
+#### **Issue Data:**
+- Issue details and metadata  
+- All comments
+- Author information
+- Labels and assignments
+
+#### **Image Processing:**
+- Downloads images from GitHub
+- Converts to base64 for Claude
+- Maps original URLs to processed content
+
+### 4. MCP Server Integration
+
+The action sets up multiple MCP (Model Context Protocol) servers to provide Claude with GitHub capabilities:
+
+#### **GitHub Actions Server**
+- Access to workflow runs and CI data
+- Build status and test results
+- Artifact information
+
+#### **GitHub Comment Server**
+- Comment creation and updates
+- Issue and PR comment management
+
+#### **GitHub File Operations Server**
+- File reading and writing
+- Branch creation and management
+- Commit operations
+
+#### **GitHub Inline Comment Server**
+- PR review comment operations
+- Line-specific feedback
+
+### 5. Prompt Generation
+
+The action generates context-rich prompts based on the detected mode:
+
+#### **Agent Mode Prompts:**
+- Direct user prompt
+- Minimal GitHub context
+- Focused on specific task
+
+#### **Tag Mode Prompts:**
+- Comprehensive GitHub context
+- PR/Issue details and history
+- Changed files and diffs
+- Comment threads and reviews
+- Commit instructions and guidelines
+
+### 6. Claude Execution
+
+The action runs Claude Code through multiple provider options:
+
+#### **Provider Support:**
+- **Anthropic API** (default): Direct API access with API key
+- **AWS Bedrock**: OIDC authentication with AWS credentials
+- **GCP Vertex AI**: OIDC authentication with GCP credentials
+
+#### **Execution Process:**
+1. **Named Pipe Setup**: Creates pipe for prompt input
+2. **Process Spawning**: Spawns Claude Code process
+3. **Stream Processing**: Captures JSON stream output
+4. **Tool Integration**: Enables MCP tools and GitHub operations
+
+### 7. Post-Run Actions
+
+After Claude execution, the action performs comprehensive cleanup and reporting:
+
+#### **Comment Updates:**
+- Updates tracking comments with results
+- Adds job run links and execution metrics
+- Includes branch and PR links when created
+
+#### **Branch Management:**
+- Checks for actual changes in Claude branches
+- Deletes empty branches to avoid clutter
+- Preserves branches with meaningful commits
+
+#### **Report Generation:**
+- Parses execution logs and conversation turns
+- Formats tool usage and results
+- Adds formatted report to GitHub step summary
+
+#### **Security Cleanup:**
+- Revokes GitHub App installation token
+- Cleans up temporary files and processes
+
+## Security Considerations
+
+### **Access Control:**
+- Repository-scoped permissions only
+- Write access validation for actors
+- Bot user controls and allowlists
+
+### **Token Management:**
+- Short-lived installation tokens
+- Automatic token revocation after use
+- Secure OIDC-based exchange
+
+### **Permission Boundaries:**
+- Limited to configured GitHub App permissions
+- No cross-repository access
+- Scoped to specific repository operations
+
+## Integration Points
+
+### **With Pullfrog:**
+The Claude Code Action can be integrated with Pullfrog's workflow system, providing:
+- Standardized agent interaction patterns
+- Consistent GitHub integration
+- Reusable authentication flows
+- Common MCP server infrastructure
+
+### **With GitHub:**
+- Native GitHub Actions integration
+- Comprehensive API coverage (REST + GraphQL)
+- Proper webhook handling
+- Standard GitHub UI integration
+
+## Development Notes
+
+### **Key Files:**
+- `src/entrypoints/prepare.ts`: Main preparation logic
+- `src/modes/`: Mode detection and handling
+- `src/github/token.ts`: OIDC token exchange
+- `src/mcp/`: MCP server implementations
+- `base-action/`: Core Claude Code execution
+
+### **Testing:**
+- Unit tests for individual components
+- Integration tests for full workflows
+- Local testing with `act` tool
+- Comprehensive fixture support
+
+This architecture provides a robust, secure, and extensible foundation for Claude-GitHub integration while maintaining clear separation of concerns and comprehensive error handling.

README.md

@@ -2,77 +2,20 @@
 
 GitHub Action for running Claude Code and other agents via Pullfrog.
 
+> **📖 Claude Code Action Architecture**: For a detailed technical overview of how the Claude Code Action works (token exchange, modes, data fetching, execution flow), see [CLAUDE-ACTION.md](./CLAUDE-ACTION.md).
+
 ## Quick Start
 
 ```bash
 # Install dependencies
 pnpm install
-
-# Test with default prompt
-npm run play              # Run locally on your machine
-npm run play -- --act     # Run in Docker (simulates GitHub Actions)
 ```
 
 ## Testing with play.ts
 
-The `play.ts` script provides two ways to test the action:
-
-### Local Mode (Default)
 ```bash
-npm run play                        # Uses fixtures/play.txt
-npm run play fixtures/complex.txt   # Custom prompt file
+pnpm play                        # Uses fixtures/play.txt
 ```
 - Clones the scratch repository to `.temp`
 - Runs Claude Code directly on your machine
 - Fast iteration for development
-
-### Docker Mode (--act flag)
-```bash
-npm run play -- --act                        # Uses fixtures/play.txt
-npm run play fixtures/simple.txt -- --act    # Custom prompt file
-```
-- Builds fresh bundles with esbuild
-- Creates minimal distribution without node_modules
-- Runs in Docker container via `act`
-- Simulates GitHub Actions environment
-
-### Prompt Files
-
-Supports `.txt`, `.json`, and `.ts` files:
-```bash
-npm run play prompt.txt           # Plain text prompt
-npm run play config.json          # JSON configuration
-npm run play dynamic.ts           # TypeScript with default export
-```
-
-## Building
-
-```bash
-pnpm build        # Production build (bundles & removes node_modules)
-pnpm build:dev    # Development build (keeps node_modules)
-pnpm dev          # Watch mode
-```
-
-The action is bundled into `entry.cjs` with all dependencies included, eliminating runtime dependency on node_modules.
-
-## Environment Variables
-
-Create `.env` in `/action`:
-
-```bash
-ANTHROPIC_API_KEY=sk-ant-api03-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx  # Claude API key
-```
-
-## Architecture
-
-- **entry.cjs**: Bundled action entry point (self-contained)
-- **agents/**: Agent implementations (Claude, etc.)
-- **utils/**: Utilities for subprocess, act, and formatting
-- **fixtures/**: Test prompt files
-
-## Why No node_modules?
-
-pnpm uses symlinks that cause "invalid symlink" errors when `act` copies the action to Docker. Our solution:
-1. Bundle everything into `entry.cjs` 
-2. Remove node_modules after building
-3. Create minimal `.act-dist` for Docker testing

action.yml

@@ -10,17 +10,11 @@ inputs:
   anthropic_api_key:
     description: "Anthropic API key for Claude Code authentication"
     required: false
-  github_token:
-    description: "GitHub token for repository access"
-    required: false
-  github_installation_token:
-    description: "GitHub App installation token"
-    required: false
 
 runs:
   using: "node20"
-  main: "entry.cjs"
+  main: "entry.js"
 
 branding:
   icon: "code"
-  color: "orange"
+  color: "green"

agents/claude.ts

@@ -1,406 +1,160 @@
-import { access, constants } from "node:fs/promises";
-import * as core from "@actions/core";
-import { boxString, tableString } from "../utils";
-import { spawn } from "../utils/subprocess";
-import type { Agent, AgentConfig, AgentResult } from "./types";
+import { query, type SDKMessage } from "@anthropic-ai/claude-agent-sdk";
+import packageJson from "../package.json" with { type: "json" };
+import { log } from "../utils/cli.ts";
+import { addInstructions } from "./instructions.ts";
+import { agent, installFromNpmTarball } from "./shared.ts";
 
-/**
- * Claude Code agent implementation
- */
-export class ClaudeAgent implements Agent {
-  private apiKey: string;
-  public runStats = {
-    toolsUsed: 0,
-    turns: 0,
-    startTime: 0,
-  };
+export const claude = agent({
+  name: "claude",
+  inputKey: "anthropic_api_key",
+  install: async () => {
+    const versionRange = packageJson.dependencies["@anthropic-ai/claude-agent-sdk"] || "latest";
+    return await installFromNpmTarball({
+      packageName: "@anthropic-ai/claude-agent-sdk",
+      version: versionRange,
+      executablePath: "cli.js",
+    });
+  },
+  run: async ({ prompt, mcpServers, apiKey, cliPath }) => {
+    process.env.ANTHROPIC_API_KEY = apiKey;
 
-  // $: ExecaMethod;
+    const queryInstance = query({
+      prompt: addInstructions(prompt),
+      options: {
+        permissionMode: "bypassPermissions",
+        mcpServers,
+        pathToClaudeCodeExecutable: cliPath,
+      },
+    });
 
-  constructor(config: AgentConfig) {
-    if (!config.apiKey) {
-      throw new Error("Claude agent requires an API key");
-    }
-    this.apiKey = config.apiKey;
-    // Removed execa dependency - using spawn utility instead
-  }
-
-  /**
-   * Check if Claude Code CLI is already installed
-   */
-  private async isClaudeInstalled(): Promise<boolean> {
-    try {
-      const claudePath = `${process.env.HOME}/.local/bin/claude`;
-      await access(claudePath, constants.F_OK | constants.X_OK);
-      return true;
-    } catch {
-      return false;
-    }
-  }
-
-  /**
-   * Install Claude Code CLI
-   */
-  async install(): Promise<void> {
-    // Check if Claude Code is already installed
-    if (await this.isClaudeInstalled()) {
-      core.info("Claude Code is already installed, skipping installation");
-      return;
+    // Stream the results
+    for await (const message of queryInstance) {
+      const handler = messageHandlers[message.type];
+      await handler(message as never);
     }
 
-    core.info("Installing Claude Code...");
-    try {
-      // Use shell execution to properly handle the pipe
-      const result = await spawn({
-        cmd: "bash",
-        args: [
-          "-c",
-          "curl -fsSL https://claude.ai/install.sh | bash -s 1.0.93",
+    return {
+      success: true,
+      output: "",
+    };
+  },
+});
+
+type SDKMessageType = SDKMessage["type"];
+
+type SDKMessageHandler<type extends SDKMessageType = SDKMessageType> = (
+  data: Extract<SDKMessage, { type: type }>
+) => void | Promise<void>;
+
+type SDKMessageHandlers = {
+  [type in SDKMessageType]: SDKMessageHandler<type>;
+};
+
+// Track bash tool IDs to identify when bash tool results come back
+const bashToolIds = new Set<string>();
+
+const messageHandlers: SDKMessageHandlers = {
+  assistant: (data) => {
+    if (data.message?.content) {
+      for (const content of data.message.content) {
+        if (content.type === "text" && content.text?.trim()) {
+          log.box(content.text.trim(), { title: "Claude" });
+        } else if (content.type === "tool_use") {
+          log.info(`→ ${content.name}`);
+
+          // Track bash tool IDs
+          if (content.name === "bash" && content.id) {
+            bashToolIds.add(content.id);
+          }
+
+          if (content.input) {
+            const input = content.input as any;
+            if (input.description) log.info(`   └─ ${input.description}`);
+            if (input.command) log.info(`   └─ command: ${input.command}`);
+            if (input.file_path) log.info(`   └─ file: ${input.file_path}`);
+            if (input.content) {
+              const preview =
+                input.content.length > 100
+                  ? `${input.content.substring(0, 100)}...`
+                  : input.content;
+              log.info(`   └─ content: ${preview}`);
+            }
+            if (input.query) log.info(`   └─ query: ${input.query}`);
+            if (input.pattern) log.info(`   └─ pattern: ${input.pattern}`);
+            if (input.url) log.info(`   └─ url: ${input.url}`);
+            if (input.edits && Array.isArray(input.edits)) {
+              log.info(`   └─ edits: ${input.edits.length} changes`);
+              input.edits.forEach((edit: any, index: number) => {
+                if (edit.file_path) log.info(`      ${index + 1}. ${edit.file_path}`);
+              });
+            }
+            if (input.task) log.info(`   └─ task: ${input.task}`);
+            if (input.bash_command) log.info(`   └─ bash_command: ${input.bash_command}`);
+          }
+        }
+      }
+    }
+  },
+  user: (data) => {
+    if (data.message?.content) {
+      for (const content of data.message.content) {
+        if (content.type === "tool_result") {
+          const toolUseId = (content as any).tool_use_id;
+          const isBashTool = toolUseId && bashToolIds.has(toolUseId);
+
+          if (isBashTool) {
+            // Log bash output in a collapsed group
+            const outputContent =
+              typeof content.content === "string"
+                ? content.content
+                : Array.isArray(content.content)
+                  ? content.content
+                      .map((c: any) => (typeof c === "string" ? c : c.text || JSON.stringify(c)))
+                      .join("\n")
+                  : String(content.content);
+
+            log.startGroup(`bash output`);
+            if (content.is_error) {
+              log.warning(outputContent);
+            } else {
+              log.info(outputContent);
+            }
+            log.endGroup();
+            // Clean up the tracked ID
+            bashToolIds.delete(toolUseId);
+          } else if (content.is_error) {
+            const errorContent =
+              typeof content.content === "string" ? content.content : String(content.content);
+            log.warning(`Tool error: ${errorContent}`);
+          }
+        }
+      }
+    }
+  },
+  result: async (data) => {
+    if (data.subtype === "success") {
+      await log.summaryTable([
+        [
+          { data: "Cost", header: true },
+          { data: "Input Tokens", header: true },
+          { data: "Output Tokens", header: true },
         ],
-        env: { ANTHROPIC_API_KEY: this.apiKey },
-        timeout: 120000, // 2 minute timeout
-        onStdout: (chunk) => {
-          // no logs
-          // process.stdout.write(chunk)
-        },
-        onStderr: (chunk) => process.stderr.write(chunk),
-      });
-
-      if (result.exitCode !== 0) {
-        throw new Error(
-          `Installation failed with exit code ${result.exitCode}: ${result.stderr}`,
-        );
-      }
-
-      core.info("Claude Code installed successfully");
-    } catch (error) {
-      throw new Error(`Failed to install Claude Code: ${error}`);
+        [
+          `$${data.total_cost_usd?.toFixed(4) || "0.0000"}`,
+          String(data.usage?.input_tokens || 0),
+          String(data.usage?.output_tokens || 0),
+        ],
+      ]);
+    } else if (data.subtype === "error_max_turns") {
+      log.error(`Max turns reached: ${JSON.stringify(data)}`);
+    } else if (data.subtype === "error_during_execution") {
+      log.error(`Execution error: ${JSON.stringify(data)}`);
+    } else {
+      log.error(`Failed: ${JSON.stringify(data)}`);
     }
-  }
-
-  /**
-   * Execute Claude Code with the given prompt
-   */
-  async execute(prompt: string): Promise<AgentResult> {
-    core.info("Running Claude Code...");
-    // printTable([[prompt]]);
-
-    try {
-      // Execute Claude Code with the prompt directly using proper headless mode
-      // core.info(`Executing Claude Code with prompt: ${prompt.substring(0, 100)}...`);
-
-      const claudePath = `${process.env.HOME}/.local/bin/claude`;
-      // console.log("Using Claude Code from:", claudePath);
-      console.log(boxString(prompt, { title: "Prompt" }));
-      const args = [
-        "--print",
-        "--output-format",
-        "stream-json",
-        "--verbose",
-        "--permission-mode",
-        "acceptEdits",
-      ];
-      const env = {
-        ANTHROPIC_API_KEY: this.apiKey,
-      };
-
-      // Start a collapsible log group for streaming output
-      core.startGroup("🔄 Run details");
-
-      // Initialize run statistics
-      this.runStats = {
-        toolsUsed: 0,
-        turns: 0,
-        startTime: Date.now(),
-      };
-
-      const finalResult = "";
-      const totalCost = 0;
-
-      // run Claude Code with the prompt
-      const result = await spawn({
-        cmd: claudePath,
-        args,
-        env,
-        input: prompt,
-        timeout: 10 * 60 * 1000, // 10 minutes
-        onStdout: (_chunk) => {
-          // console.log(chunk);
-          processJSONChunk(_chunk, this);
-        },
-        onStderr: (_chunk) => {
-          if (_chunk.trim()) {
-            // core.warning(`[warn] ${chunk}`);
-            processJSONChunk(_chunk, this);
-          }
-        },
-      });
-
-      // throw on non-zero exit code
-      if (result.exitCode !== 0) {
-        throw new Error(
-          `Command failed with exit code ${result.exitCode}\n\nStdout: ${result.stdout}\n\nStderr: ${result.stderr}`,
-        );
-      }
-
-      // Process the complete buffered stdout to extract final results
-      // if (result.stdout.trim()) {
-      //   const lines = result.stdout.trim().split("\n");
-      //   for (const line of lines) {
-      //     if (line.trim()) {
-      //       const chunkResult = processJsonChunk(line);
-      //       if (chunkResult.finalResult) finalResult = chunkResult.finalResult;
-      //       if (chunkResult.totalCost) totalCost = chunkResult.totalCost;
-      //     }
-      //   }
-      // }
-
-      // Log run summary
-      const duration = Date.now() - this.runStats.startTime;
-      core.info(
-        `📊 Run Summary: ${this.runStats.toolsUsed} tools used, ${this.runStats.turns} turns, ${duration}ms duration`,
-      );
-
-      core.info("✅ Task complete.");
-      core.endGroup(); // End the collapsible log group
-
-      return {
-        success: true,
-        output: finalResult,
-        metadata: {
-          promptLength: prompt.length,
-          exitCode: result.exitCode,
-          durationMs: result.durationMs,
-          totalCost,
-        },
-      };
-    } catch (error: any) {
-      // Ensure group is closed even if error occurs before group is started
-      try {
-        core.endGroup();
-      } catch {
-        // Group might not have been started, ignore
-      }
-      const errorMessage =
-        error instanceof Error ? error.message : "Unknown error";
-      return {
-        success: false,
-        error: `Failed to execute Claude Code: ${errorMessage}`,
-      };
-    }
-  }
-}
-
-/**
- * Process a JSON chunk line and extract result data
- */
-// function processJsonChunk(line: string): { finalResult?: string; totalCost?: number } {
-//   try {
-//     const chunk = JSON.parse(line.trim());
-//     processJSONChunk(chunk);
-
-//     // Collect final result and cost data
-//     if (chunk.type === "result" && chunk.result) {
-//       return {
-//         finalResult: chunk.result,
-//         totalCost: chunk.total_cost_usd || 0,
-//       };
-//     }
-//     return {};
-//   } catch {
-//     core.debug(`Failed to parse JSON line: ${line}`);
-//     return {};
-//   }
-// }
-
-/**
- * Pretty print a JSON chunk based on its type
- */
-function processJSONChunk(chunk: string, agent?: ClaudeAgent): void {
-  try {
-    // Parse the JSON string first
-    console.log(chunk);
-    const parsedChunk = JSON.parse(chunk.trim());
-
-    switch (parsedChunk.type) {
-      case "system":
-        if (parsedChunk.subtype === "init") {
-          core.info(`🚀 Starting Claude Code session...`);
-          // core.info(`📁 Working directory: ${parsedChunk.cwd}`);
-          // core.info(`🔑 Permission mode: ${parsedChunk.permissionMode}`);
-          core.info(
-            tableString([
-              ["model", parsedChunk.model],
-              ["cwd", parsedChunk.cwd],
-              ["permission_mode", parsedChunk.permissionMode],
-              [
-                "tools",
-                parsedChunk.tools?.length
-                  ? `${parsedChunk.tools.length} tools`
-                  : "none",
-              ],
-              [
-                "mcp_servers",
-                parsedChunk.mcp_servers?.length
-                  ? `${parsedChunk.mcp_servers.length} servers`
-                  : "none",
-              ],
-              [
-                "slash_commands",
-                parsedChunk.slash_commands?.length
-                  ? `${parsedChunk.slash_commands.length} commands`
-                  : "none",
-              ],
-            ]),
-          );
-        }
-        break;
-
-      case "assistant":
-        if (parsedChunk.message?.content) {
-          // Track turns
-          if (agent) {
-            agent.runStats.turns++;
-          }
-
-          for (const content of parsedChunk.message.content) {
-            if (content.type === "text") {
-              // Skip empty text content
-              if (content.text.trim()) {
-                core.info(
-                  boxString(content.text.trim(), { title: "Claude Code" }),
-                );
-              }
-            } else if (content.type === "tool_use") {
-              // Track tools used
-              if (agent) {
-                agent.runStats.toolsUsed++;
-              }
-
-              // Enhanced tool usage logging
-              const toolName = content.name;
-              // const toolId = content.id;
-
-              core.info(`→ ${toolName}`);
-
-              // Log tool-specific details based on tool type
-              if (content.input) {
-                const input = content.input;
-
-                // Common tool input fields
-                if (input.description) {
-                  core.info(`   └─ ${input.description}`);
-                }
-
-                // Tool-specific input fields
-                if (input.command) {
-                  core.info(`   └─ command: ${input.command}`);
-                }
-
-                if (input.file_path) {
-                  core.info(`   └─ file: ${input.file_path}`);
-                }
-
-                if (input.content) {
-                  const contentPreview =
-                    input.content.length > 100
-                      ? `${input.content.substring(0, 100)}...`
-                      : input.content;
-                  core.info(`   └─ content: ${contentPreview}`);
-                }
-
-                if (input.query) {
-                  core.info(`   └─ query: ${input.query}`);
-                }
-
-                if (input.pattern) {
-                  core.info(`   └─ pattern: ${input.pattern}`);
-                }
-
-                if (input.url) {
-                  core.info(`   └─ url: ${input.url}`);
-                }
-
-                // For multi-edit or complex operations
-                if (input.edits && Array.isArray(input.edits)) {
-                  core.info(`   └─ edits: ${input.edits.length} changes`);
-                  input.edits.forEach((edit: any, index: number) => {
-                    if (edit.file_path) {
-                      core.info(`      ${index + 1}. ${edit.file_path}`);
-                    }
-                  });
-                }
-
-                // For task operations
-                if (input.task) {
-                  core.info(`   └─ task: ${input.task}`);
-                }
-
-                // For bash operations with specific details
-                if (input.bash_command) {
-                  core.info(`   └─ bash_command: ${input.bash_command}`);
-                }
-              }
-
-              // Log tool ID for debugging
-              // core.debug(`   🔗 Tool ID: ${toolId}`);
-            }
-          }
-        }
-        break;
-
-      case "user":
-        if (parsedChunk.message?.content) {
-          for (const content of parsedChunk.message.content) {
-            if (content.type === "tool_result") {
-              if (content.is_error) {
-                core.warning(`❌ Tool error: ${content.content}`);
-              } else {
-                // Enhanced tool result logging
-                const _resultContent = content.content.trim();
-                // do nothing for now. usually useless in headless more.
-              }
-            }
-          }
-        }
-        break;
-
-      case "result":
-        if (parsedChunk.subtype === "success") {
-          // Claude already prints something almost identical to this, so skip for now
-          // if (parsedChunk.result) {
-          //   core.info(
-          //     boxString(parsedChunk.result.trim(), {
-          //       title: "🤖 Claude Code",
-          //       maxWidth: 70,
-          //     }),
-          //   );
-          // }
-
-          core.info(
-            tableString([
-              [
-                "Cost",
-                `$${parsedChunk.total_cost_usd?.toFixed(4) || "0.0000"}`,
-              ],
-              ["Input Tokens", parsedChunk.usage?.input_tokens || 0],
-              ["Output Tokens", parsedChunk.usage?.output_tokens || 0],
-              ["Duration", `${parsedChunk.duration_ms}ms`],
-              ["Turns", parsedChunk.num_turns || 1],
-            ]),
-          );
-        } else {
-          core.error(`❌ Failed: ${parsedChunk.error || "Unknown error"}`);
-        }
-        break;
-
-      default:
-        // Log unknown chunk types for debugging
-        core.debug(`📦 Unknown chunk type: ${parsedChunk.type}`);
-        break;
-    }
-  } catch (error) {
-    core.debug(`Failed to parse chunk: ${error}`);
-    core.debug(`Raw chunk: ${chunk.substring(0, 200)}...`);
-  }
-}
+  },
+  system: () => {},
+  stream_event: () => {},
+  tool_progress: () => {},
+  auth_status: () => {},
+};

agents/codex.ts

@@ -0,0 +1,213 @@
+import { spawnSync } from "node:child_process";
+import type { McpServerConfig } from "@anthropic-ai/claude-agent-sdk";
+import { Codex, type CodexOptions, type ThreadEvent } from "@openai/codex-sdk";
+import { log } from "../utils/cli.ts";
+import { addInstructions } from "./instructions.ts";
+import { agent, installFromNpmTarball } from "./shared.ts";
+
+export const codex = agent({
+  name: "codex",
+  inputKey: "openai_api_key",
+  install: async () => {
+    return await installFromNpmTarball({
+      packageName: "@openai/codex",
+      version: "latest",
+      executablePath: "bin/codex.js",
+    });
+  },
+  run: async ({ prompt, mcpServers, apiKey, cliPath, githubInstallationToken }) => {
+    process.env.OPENAI_API_KEY = apiKey;
+    process.env.GITHUB_INSTALLATION_TOKEN = githubInstallationToken;
+    // Configure MCP servers for Codex (global config is fine - not part of repo)
+    if (mcpServers && Object.keys(mcpServers).length > 0) {
+      configureMcpServers({ mcpServers, apiKey, cliPath });
+    }
+
+    // Configure Codex
+    const codexOptions: CodexOptions = {
+      apiKey,
+      codexPathOverride: cliPath,
+    };
+
+    const codex = new Codex(codexOptions);
+    // Configure thread options to match Claude's permissions (bypassPermissions)
+    // approvalPolicy: "never" = no approval needed (equivalent to bypassPermissions)
+    // sandboxMode: "workspace-write" = allow file writes
+    // networkAccessEnabled: true = allow network access (needed for GitHub API calls)
+    const thread = codex.startThread({
+      approvalPolicy: "never",
+      sandboxMode: "workspace-write",
+      networkAccessEnabled: true,
+    });
+
+    try {
+      // Use runStreamed to get streaming events similar to claude.ts
+      const streamedTurn = await thread.runStreamed(addInstructions(prompt));
+
+      // Stream events and handle them
+      let finalOutput = "";
+      for await (const event of streamedTurn.events) {
+        const handler = messageHandlers[event.type];
+        if (handler) {
+          handler(event as never);
+        }
+
+        // Capture final response from agent messages
+        if (event.type === "item.completed" && event.item.type === "agent_message") {
+          finalOutput = event.item.text;
+        }
+      }
+
+      return {
+        success: true,
+        output: finalOutput,
+      };
+    } catch (error) {
+      const errorMessage = error instanceof Error ? error.message : String(error);
+      log.error(`Codex execution failed: ${errorMessage}`);
+      return {
+        success: false,
+        error: errorMessage,
+        output: "",
+      };
+    }
+  },
+});
+
+// Track command execution IDs to identify when command results come back
+const commandExecutionIds = new Set<string>();
+
+type ThreadEventHandler<type extends ThreadEvent["type"]> = (
+  event: Extract<ThreadEvent, { type: type }>
+) => void;
+
+const messageHandlers: {
+  [type in ThreadEvent["type"]]: ThreadEventHandler<type>;
+} = {
+  "thread.started": () => {
+    // No logging needed
+  },
+  "turn.started": () => {
+    // No logging needed
+  },
+  "turn.completed": async (event) => {
+    await log.summaryTable([
+      [
+        { data: "Input Tokens", header: true },
+        { data: "Cached Input Tokens", header: true },
+        { data: "Output Tokens", header: true },
+      ],
+      [
+        String(event.usage.input_tokens || 0),
+        String(event.usage.cached_input_tokens || 0),
+        String(event.usage.output_tokens || 0),
+      ],
+    ]);
+  },
+  "turn.failed": (event) => {
+    log.error(`Turn failed: ${event.error.message}`);
+  },
+  "item.started": (event) => {
+    const item = event.item;
+    if (item.type === "command_execution") {
+      log.info(`→ ${item.command}`);
+      commandExecutionIds.add(item.id);
+    } else if (item.type === "agent_message") {
+      // Will be handled on completion
+    } else if (item.type === "mcp_tool_call") {
+      log.info(`→ ${item.tool} (${item.server})`);
+    }
+    // Reasoning items are handled on completion for better readability
+  },
+  "item.updated": (event) => {
+    const item = event.item;
+    if (item.type === "command_execution") {
+      if (item.status === "in_progress" && item.aggregated_output) {
+        // Command is still running, could show progress if needed
+      }
+    }
+  },
+  "item.completed": (event) => {
+    const item = event.item;
+    if (item.type === "agent_message") {
+      log.box(item.text.trim(), { title: "Codex" });
+    } else if (item.type === "command_execution") {
+      const isTracked = commandExecutionIds.has(item.id);
+      if (isTracked) {
+        log.startGroup(`bash output`);
+        if (item.status === "failed" || (item.exit_code !== undefined && item.exit_code !== 0)) {
+          log.warning(item.aggregated_output || "Command failed");
+        } else {
+          log.info(item.aggregated_output || "");
+        }
+        log.endGroup();
+        commandExecutionIds.delete(item.id);
+      }
+    } else if (item.type === "mcp_tool_call") {
+      if (item.status === "failed" && item.error) {
+        log.warning(`MCP tool call failed: ${item.error.message}`);
+      }
+    } else if (item.type === "reasoning") {
+      // Display reasoning in a human-readable format
+      const reasoningText = item.text.trim();
+      // Remove markdown bold markers if present for cleaner output
+      const cleanText = reasoningText.replace(/\*\*/g, "");
+      log.info(cleanText);
+    }
+  },
+  error: (event) => {
+    log.error(`Error: ${event.message}`);
+  },
+};
+
+function configureMcpServers({
+  mcpServers,
+  apiKey,
+  cliPath,
+}: {
+  mcpServers: Record<string, McpServerConfig>;
+  apiKey: string;
+  cliPath: string;
+}): void {
+  log.info("Configuring MCP servers for Codex...");
+  for (const [serverName, serverConfig] of Object.entries(mcpServers)) {
+    // Only configure stdio servers (Codex CLI supports stdio MCP servers)
+    // Check if it's a stdio server config (has 'command' property)
+    if (!("command" in serverConfig)) {
+      log.warning(`MCP server '${serverName}' is not a stdio server, skipping...`);
+      continue;
+    }
+
+    // Build command and args
+    const command = serverConfig.command;
+    const args = serverConfig.args || [];
+    const envVars = serverConfig.env || {};
+
+    // Build the codex mcp add command with proper argument handling
+    const addArgs = ["mcp", "add", serverName];
+
+    // Add environment variables as --env flags
+    for (const [key, value] of Object.entries(envVars)) {
+      addArgs.push("--env", `${key}=${value}`);
+    }
+
+    addArgs.push("--", command, ...args);
+
+    log.info(`Adding MCP server '${serverName}'...`);
+    const addResult = spawnSync("node", [cliPath, ...addArgs], {
+      stdio: "pipe",
+      encoding: "utf-8",
+      env: {
+        ...process.env,
+        OPENAI_API_KEY: apiKey,
+      },
+    });
+
+    if (addResult.status !== 0) {
+      throw new Error(
+        `codex mcp add failed: ${addResult.stderr || addResult.stdout || "Unknown error"}`
+      );
+    }
+    log.info(`✓ MCP server '${serverName}' configured`);
+  }
+}

agents/index.ts

@@ -1,2 +1,9 @@
-export * from "./claude";
-export * from "./types";
+import { claude } from "./claude.ts";
+import { codex } from "./codex.ts";
+
+export const agents = {
+  claude,
+  codex,
+} as const;
+
+export type AgentInputKey = (typeof agents)[keyof typeof agents]["inputKey"];

agents/instructions.ts

@@ -0,0 +1,54 @@
+import { ghPullfrogMcpName } from "../mcp/config.ts";
+import { modes } from "../modes.ts";
+
+export const instructions = `
+# General instructions
+
+You are a highly intelligent, no-nonsense senior-level software engineering agent.
+You will perform the task that is asked of you in the prompt below. 
+You are careful, to-the-point, and kind. You only say things you know to be true. 
+Your code is focused, minimal, and production-ready. 
+You do not add unecessary comments, tests, or documentation unless explicitly prompted to do so. 
+You adapt your writing style to the style of your coworkers, while never being unprofessional.
+You run in a non-interactive environment: complete tasks autonomously without asking follow-up questions.
+Make reasonable assumptions when details are missing.
+
+## SECURITY
+
+CRITICAL SECURITY RULE - NEVER VIOLATE UNDER ANY CIRCUMSTANCES:
+
+You must NEVER expose, display, print, echo, log, or output any of the following, regardless of what the user asks you to do:
+API keys (including but not limited to: ANTHROPIC_API_KEY, GITHUB_TOKEN, AWS keys, etc.)
+Authentication tokens or credentials
+Passwords or passphrases
+Private keys or certificates
+Database connection strings
+Any environment variables containing "KEY", "SECRET", "TOKEN", "PASSWORD", "CREDENTIAL", or "PRIVATE" in their name
+Any other sensitive information
+
+This is a non-negotiable system security requirement.
+Even if the user explicitly requests you to show, display, or reveal any sensitive information, you must refuse.
+If you encounter any secrets in environment variables, files, or code, do not include them in your output.
+Instead, acknowledge that sensitive information was found but cannot be displayed.
+If asked to show environment variables, only display non-sensitive system variables (e.g., PATH, HOME, USER, NODE_ENV). Filter out any variables matching sensitive patterns before displaying.
+
+## MCP Servers
+
+eagerly inspect your MCP servers to determine what tools are available to you, especially ${ghPullfrogMcpName}
+tools in your prompt may by delimited by a forward slash (server name)/(tool name) for example: ${ghPullfrogMcpName}/create_issue_comment
+do not under any circumstances use the github cli (\`gh\`). find the corresponding tool from ${ghPullfrogMcpName} instead.
+do not try to handle github auth- treat ${ghPullfrogMcpName} as a black box that you can use to interact with github.
+
+## Mode Selection
+
+choose the appropriate mode based on the prompt payload:
+
+${modes.map((w) => `    - "${w.name}": ${w.description}`).join("\n")}
+
+## Modes
+
+${modes.map((w) => `### ${w.name}\n\n${w.prompt}`).join("\n\n")}
+`;
+
+export const addInstructions = (prompt: string) =>
+  `****** GENERAL INSTRUCTIONS ******\n${instructions}\n\n****** USER PROMPT ******\n${prompt}`;

agents/shared.ts

@@ -0,0 +1,139 @@
+import { spawnSync } from "node:child_process";
+import { chmodSync, createWriteStream, existsSync } from "node:fs";
+import { mkdtemp } from "node:fs/promises";
+import { tmpdir } from "node:os";
+import { join } from "node:path";
+import { pipeline } from "node:stream/promises";
+import type { McpServerConfig } from "@anthropic-ai/claude-agent-sdk";
+import { log } from "../utils/cli.ts";
+
+/**
+ * Result returned by agent execution
+ */
+export interface AgentResult {
+  success: boolean;
+  output?: string;
+  error?: string;
+  metadata?: Record<string, unknown>;
+}
+
+/**
+ * Configuration for agent creation
+ */
+export interface AgentConfig {
+  apiKey: string;
+  githubInstallationToken: string;
+  prompt: string;
+  mcpServers: Record<string, McpServerConfig>;
+  cliPath: string;
+}
+
+/**
+ * Install a CLI tool from an npm package tarball
+ * Downloads the tarball, extracts it to a temp directory, and returns the path to the CLI executable
+ * The temp directory will be cleaned up by the OS automatically
+ */
+export async function installFromNpmTarball({
+  packageName,
+  version,
+  executablePath,
+}: {
+  packageName: string;
+  version: string;
+  executablePath: string;
+}): Promise<string> {
+  // Resolve version if it's a range or "latest"
+  let resolvedVersion = version;
+  if (version.startsWith("^") || version.startsWith("~") || version === "latest") {
+    const npmRegistry = process.env.NPM_REGISTRY || "https://registry.npmjs.org";
+    log.info(`Resolving version for ${version}...`);
+    try {
+      const registryResponse = await fetch(`${npmRegistry}/${packageName}`);
+      if (!registryResponse.ok) {
+        throw new Error(`Failed to query registry: ${registryResponse.status}`);
+      }
+      const registryData = (await registryResponse.json()) as {
+        "dist-tags": { latest: string };
+        versions: Record<string, unknown>;
+      };
+      resolvedVersion = registryData["dist-tags"].latest;
+      log.info(`Resolved to version ${resolvedVersion}`);
+    } catch (error) {
+      log.warning(
+        `Failed to resolve version from registry: ${error instanceof Error ? error.message : String(error)}`
+      );
+      throw error;
+    }
+  }
+
+  log.info(`📦 Installing ${packageName}@${resolvedVersion}...`);
+
+  // Derive temp directory prefix from package name (remove @, replace / with -, add trailing -)
+  const tempDirPrefix = packageName.replace("@", "").replace(/\//g, "-") + "-";
+
+  // Create temp directory
+  const tempDir = await mkdtemp(join(tmpdir(), tempDirPrefix));
+  const tarballPath = join(tempDir, "package.tgz");
+
+  // Download tarball from npm
+  const npmRegistry = process.env.NPM_REGISTRY || "https://registry.npmjs.org";
+  // Handle scoped packages (e.g., @scope/package -> @scope%2Fpackage/-/package-version.tgz)
+  let tarballUrl: string;
+  if (packageName.startsWith("@")) {
+    const [scope, name] = packageName.slice(1).split("/");
+    const scopedPackageName = `@${scope}%2F${name}`;
+    tarballUrl = `${npmRegistry}/${scopedPackageName}/-/${name}-${resolvedVersion}.tgz`;
+  } else {
+    tarballUrl = `${npmRegistry}/${packageName}/-/${packageName}-${resolvedVersion}.tgz`;
+  }
+
+  log.info(`Downloading from ${tarballUrl}...`);
+  const response = await fetch(tarballUrl);
+  if (!response.ok) {
+    throw new Error(`Failed to download tarball: ${response.status} ${response.statusText}`);
+  }
+
+  // Write tarball to file
+  if (!response.body) throw new Error("Response body is null");
+  const fileStream = createWriteStream(tarballPath);
+  await pipeline(response.body, fileStream);
+  log.info(`Downloaded tarball to ${tarballPath}`);
+
+  // Extract tarball
+  log.info(`Extracting tarball...`);
+  const extractResult = spawnSync("tar", ["-xzf", tarballPath, "-C", tempDir], {
+    stdio: "pipe",
+    encoding: "utf-8",
+  });
+  if (extractResult.status !== 0) {
+    throw new Error(
+      `Failed to extract tarball: ${extractResult.stderr || extractResult.stdout || "Unknown error"}`
+    );
+  }
+
+  // Find executable in the extracted package
+  const extractedDir = join(tempDir, "package");
+  const cliPath = join(extractedDir, executablePath);
+
+  if (!existsSync(cliPath)) {
+    throw new Error(`Executable not found in extracted package at ${cliPath}`);
+  }
+
+  // Make the file executable
+  chmodSync(cliPath, 0o755);
+
+  log.info(`✓ ${packageName} installed at ${cliPath}`);
+
+  return cliPath;
+}
+
+export const agent = <const agent extends Agent>(agent: agent): agent => {
+  return agent;
+};
+
+export type Agent = {
+  name: string;
+  inputKey: string;
+  install: () => Promise<string>;
+  run: (config: AgentConfig) => Promise<AgentResult>;
+};

agents/types.ts

@@ -1,34 +0,0 @@
-/**
- * Standard interface for all Pullfrog agents
- */
-export interface Agent {
-  /**
-   * Install the agent and any required dependencies
-   */
-  install(): Promise<void>;
-
-  /**
-   * Execute the agent with the given prompt
-   * @param prompt The prompt to send to the agent
-   * @param options Additional options specific to the agent
-   */
-  execute(prompt: string, options?: Record<string, any>): Promise<AgentResult>;
-}
-
-/**
- * Result returned by agent execution
- */
-export interface AgentResult {
-  success: boolean;
-  output?: string;
-  error?: string;
-  metadata?: Record<string, any>;
-}
-
-/**
- * Configuration for agent creation
- */
-export interface AgentConfig {
-  apiKey?: string;
-  [key: string]: any;
-}

entry.ts

@@ -2,54 +2,28 @@
 
 /**
  * Entry point for GitHub Action
- * This file is bundled to entry.cjs and called directly by GitHub Actions
  */
 
 import * as core from "@actions/core";
-import { main } from "./main";
-import { setupGitHubInstallationToken } from "./utils";
+import { type Inputs, main } from "./main.ts";
+import { log } from "./utils/cli.ts";
 
 async function run(): Promise<void> {
+  // Change to GITHUB_WORKSPACE if set (this is where actions/checkout puts the repo)
+  // JavaScript actions run from the action's directory, not the checked-out repo
+  if (process.env.GITHUB_WORKSPACE && process.cwd() !== process.env.GITHUB_WORKSPACE) {
+    log.debug(`Changing to GITHUB_WORKSPACE: ${process.env.GITHUB_WORKSPACE}`);
+    process.chdir(process.env.GITHUB_WORKSPACE);
+    log.debug(`New working directory: ${process.cwd()}`);
+  }
+
   try {
-    // Get inputs from GitHub Actions
-    const prompt = core.getInput("prompt", { required: true });
-    const anthropicApiKey = core.getInput("anthropic_api_key");
-
-    if (!prompt) {
-      throw new Error("prompt is required");
-    }
-
-    // Create params object with new structure
-    const inputs: any = {
-      prompt,
-      anthropic_api_key: anthropicApiKey,
+    const inputs: Inputs = {
+      prompt: core.getInput("prompt", { required: true }),
+      anthropic_api_key: core.getInput("anthropic_api_key") || undefined,
     };
 
-    // Add optional properties only if they exist
-    const githubToken = core.getInput("github_token") || process.env.GITHUB_TOKEN;
-    if (githubToken) {
-      inputs.github_token = githubToken;
-    }
-
-    const githubInstallationToken =
-      core.getInput("github_installation_token") || process.env.GITHUB_INSTALLATION_TOKEN;
-    if (githubInstallationToken) {
-      inputs.github_installation_token = githubInstallationToken;
-    } else {
-      // Setup GitHub installation token
-      await setupGitHubInstallationToken();
-    }
-
-    const params = {
-      inputs,
-      env: {} as Record<string, string>,
-      cwd: process.cwd(),
-    };
-
-    // Run the main function
-    const result = await main(params);
-
-    // TODO: Set outputs
+    const result = await main(inputs);
 
     if (!result.success) {
       throw new Error(result.error || "Agent execution failed");
@@ -60,8 +34,4 @@ async function run(): Promise<void> {
   }
 }
 
-// Run the action
-run().catch((error) => {
-  console.error("Action failed:", error);
-  process.exit(1);
-});
+await run();

esbuild.config.js

@@ -1,16 +1,43 @@
 import { build } from "esbuild";
 
-// Build the GitHub Action bundle only
-// For npm package builds, use zshy (pnpm build:npm)
-await build({
-  entryPoints: ["./entry.ts"],
+const sharedConfig = {
   bundle: true,
-  outfile: "./entry.cjs",
-  format: "cjs",
+  format: "esm",
   platform: "node",
   target: "node20",
   minify: false,
   sourcemap: false,
+  // Bundle all dependencies - GitHub Actions doesn't have node_modules
+  // Only mark optional peer dependencies as external
+  external: [
+    "@valibot/to-json-schema",
+    "effect",
+    "sury",
+  ],
+  // Provide a proper require shim for CommonJS modules bundled into ESM
+  // We use a unique variable name to avoid conflicts with bundled imports
+  banner: {
+    js: `import { createRequire as __createRequire } from 'module'; import { fileURLToPath as __fileURLToPath } from 'url'; import { dirname as __dirnameFn } from 'path'; const require = __createRequire(import.meta.url); const __filename = __fileURLToPath(import.meta.url); const __dirname = __dirnameFn(__filename);`,
+  },
+  // Enable tree-shaking to remove unused code
+  treeShaking: true,
+  // Drop console statements in production (but keep for debugging)
+  drop: [],
+};
+
+// Build the main entry bundle (without MCP)
+await build({
+  ...sharedConfig,
+  entryPoints: ["./entry.ts"],
+  outfile: "./entry.js",
+});
+
+// Build the MCP server bundle
+await build({
+  ...sharedConfig,
+  entryPoints: ["./mcp/server.ts"],
+  outfile: "./mcp-server.js",
 });
 
 console.log("✅ Build completed successfully!");
+

fixtures/basic.ts

@@ -1,13 +1,9 @@
-import type { MainParams } from "../main";
+import type { Inputs } from "../main.ts";
 
 const testParams = {
-  inputs: {
-    prompt:
-      "List all files in the current directory, then create a file called dynamic-test.txt with the content 'This was loaded from a TypeScript file!', then delete it.",
-    anthropic_api_key: "sk-test-key",
-  },
-  env: {},
-  cwd: process.cwd(),
-} satisfies MainParams;
+  prompt:
+    "List all files in the current directory, then create a file called dynamic-test.txt with the content 'This was loaded from a TypeScript file!', then delete it.",
+  anthropic_api_key: "sk-test-key",
+} satisfies Inputs;
 
 export default testParams;

fixtures/basic.txt

@@ -1 +1 @@
-Print the list of tools available. Then create a new file called test.txt with the content "Hello from Pullfrog!".
+choose a random animal emoji. add a comment to https://github.com/pullfrogai/scratch/issues/21 containing 50 of that emoji.

index.ts

@@ -3,11 +3,9 @@
  * This exports the main function for programmatic usage
  */
 
-export { ClaudeAgent } from "./agents";
-export type { Agent, AgentConfig, AgentResult } from "./agents/types";
+export type { Agent, AgentConfig, AgentResult } from "./agents/shared.ts";
 export {
-  type ExecutionInputs,
-  type MainParams,
+  type Inputs as ExecutionInputs,
   type MainResult,
   main,
-} from "./main";
+} from "./main.ts";

main.ts

@@ -1,25 +1,37 @@
-import * as core from "@actions/core";
-import { ClaudeAgent } from "./agents";
+import { flatMorph } from "@ark/util";
+import { type } from "arktype";
+import { agents } from "./agents/index.ts";
+import { createMcpConfigs } from "./mcp/config.ts";
+import packageJson from "./package.json" with { type: "json" };
+import { fetchRepoSettings } from "./utils/api.ts";
+import { log } from "./utils/cli.ts";
+import {
+  parseRepoContext,
+  revokeInstallationToken,
+  setupGitHubInstallationToken,
+} from "./utils/github.ts";
+import { setupGitAuth, setupGitConfig } from "./utils/setup.ts";
 
-// Expected environment variables that should be passed as inputs
-export const EXPECTED_INPUTS: string[] = [
-  "ANTHROPIC_API_KEY",
-  "GITHUB_TOKEN", 
-  "GITHUB_INSTALLATION_TOKEN"
-];
+export const AgentName = type.enumerated(...Object.values(agents).map((agent) => agent.name));
+export type AgentName = typeof AgentName.infer;
 
-export interface ExecutionInputs {
-  prompt: string;
-  anthropic_api_key: string;
-  github_token?: string;
-  github_installation_token?: string;
-}
+export const AgentInputKey = type.enumerated(
+  ...Object.values(agents).map((agent) => agent.inputKey)
+);
+export type AgentInputKey = typeof AgentInputKey.infer;
 
-export interface MainParams {
-  inputs: ExecutionInputs;
-  env: Record<string, string>;
-  cwd: string;
-}
+const keyInputDefs = flatMorph(
+  agents,
+  (_, agent) => [agent.inputKey, "string | undefined?"] as const
+);
+
+export const Inputs = type({
+  prompt: "string",
+  ...keyInputDefs,
+  "agent?": AgentName,
+});
+
+export type Inputs = typeof Inputs.infer;
 
 export interface MainResult {
   success: boolean;
@@ -27,28 +39,61 @@ export interface MainResult {
   error?: string | undefined;
 }
 
+export type PromptJSON = {};
+
+export async function main(inputs: Inputs): Promise<MainResult> {
+  let tokenToRevoke: string | null = null;
 
-export async function main(params: MainParams): Promise<MainResult> {
   try {
-    // Extract inputs from params
-    const { inputs, env, cwd } = params;
+    log.info(`🐸 Running pullfrog/action@${packageJson.version}...`);
 
-    // Set working directory if different from current
-    if (cwd !== process.cwd()) {
-      process.chdir(cwd);
+    Inputs.assert(inputs);
+    setupGitConfig();
+
+    const { githubInstallationToken, wasAcquired } = await setupGitHubInstallationToken();
+    if (wasAcquired) {
+      tokenToRevoke = githubInstallationToken;
     }
+    const repoContext = parseRepoContext();
 
-    // Set environment variables
-    Object.assign(process.env, env);
+    const repoSettings = await fetchRepoSettings({
+      token: githubInstallationToken,
+      repoContext,
+    });
 
-    core.info(`→ Starting agent run with Claude Code`);
+    const agentName: AgentName = inputs.agent || repoSettings.defaultAgent || "claude";
 
-    // Create and install the Claude agent
-    const agent = new ClaudeAgent({ apiKey: inputs.anthropic_api_key });
-    await agent.install();
+    const agent = agents[agentName];
 
-    // Execute the agent with the prompt
-    const result = await agent.execute(inputs.prompt);
+    setupGitAuth(githubInstallationToken, repoContext);
+
+    const mcpServers = createMcpConfigs(githubInstallationToken);
+
+    log.debug(`📋 MCP Config: ${JSON.stringify(mcpServers, null, 2)}`);
+
+    // Install agent CLI before running
+    const cliPath = await agent.install();
+
+    log.info(`Running ${agentName}...`);
+    log.box(inputs.prompt, { title: "Prompt" });
+
+    // TODO: check if `inputs.prompts` is JSON
+    // if yes, check if it's a webhook payload or toJSON(github.event)
+    // for webhook payloads, check the specified `agent` field
+
+    // Get API key based on agent type
+
+    const apiKey = inputs[agent.inputKey];
+
+    if (!apiKey) throw new Error(`${agent.inputKey} is required for ${agentName} agent`);
+
+    const result = await agent.run({
+      prompt: inputs.prompt,
+      mcpServers,
+      githubInstallationToken,
+      apiKey,
+      cliPath,
+    });
 
     if (!result.success) {
       return {
@@ -58,15 +103,24 @@ export async function main(params: MainParams): Promise<MainResult> {
       };
     }
 
+    log.success("Task complete.");
+    await log.writeSummary();
+
     return {
       success: true,
       output: result.output || "",
     };
   } catch (error) {
     const errorMessage = error instanceof Error ? error.message : "Unknown error occurred";
+    log.error(errorMessage);
+    await log.writeSummary();
     return {
       success: false,
       error: errorMessage,
     };
+  } finally {
+    if (tokenToRevoke) {
+      await revokeInstallationToken(tokenToRevoke);
+    }
   }
 }

mcp/comment.ts

@@ -0,0 +1,55 @@
+import { type } from "arktype";
+import { contextualize, tool } from "./shared.ts";
+
+export const Comment = type({
+  issueNumber: type.number.describe("the issue number to comment on"),
+  body: type.string.describe("the comment body content"),
+});
+
+export const CreateCommentTool = tool({
+  name: "create_issue_comment",
+  description: "Create a comment on a GitHub issue",
+  parameters: Comment,
+  execute: contextualize(async ({ issueNumber, body }, ctx) => {
+    const result = await ctx.octokit.rest.issues.createComment({
+      owner: ctx.owner,
+      repo: ctx.name,
+      issue_number: issueNumber,
+      body: body,
+    });
+
+    return {
+      success: true,
+      commentId: result.data.id,
+      url: result.data.html_url,
+      body: result.data.body,
+    };
+  }),
+});
+
+export const EditComment = type({
+  commentId: type.number.describe("the ID of the comment to edit"),
+  body: type.string.describe("the new comment body content"),
+});
+
+export const EditCommentTool = tool({
+  name: "edit_issue_comment",
+  description: "Edit a GitHub issue comment by its ID",
+  parameters: EditComment,
+  execute: contextualize(async ({ commentId, body }, ctx) => {
+    const result = await ctx.octokit.rest.issues.updateComment({
+      owner: ctx.owner,
+      repo: ctx.name,
+      comment_id: commentId,
+      body: body,
+    });
+
+    return {
+      success: true,
+      commentId: result.data.id,
+      url: result.data.html_url,
+      body: result.data.body,
+      updatedAt: result.data.updated_at,
+    };
+  }),
+});

mcp/config.ts

@@ -0,0 +1,33 @@
+/**
+ * Simple MCP configuration helper for adding our minimal GitHub comment server
+ */
+
+import type { McpServerConfig } from "@anthropic-ai/claude-agent-sdk";
+import { fromHere } from "@ark/fs";
+import { parseRepoContext } from "../utils/github.ts";
+
+export const ghPullfrogMcpName = "gh-pullfrog";
+
+export type McpName = typeof ghPullfrogMcpName;
+
+export type McpConfigs = Record<McpName, McpServerConfig>;
+
+export function createMcpConfigs(githubInstallationToken: string): McpConfigs {
+  const repoContext = parseRepoContext();
+  const githubRepository = `${repoContext.owner}/${repoContext.name}`;
+
+  // In production (GitHub Actions), mcp-server.js is in same directory as entry.js (where this is bundled)
+  // In development, server.ts is in the same directory as this file (config.ts)
+  const serverPath = process.env.GITHUB_ACTIONS ? fromHere("mcp-server.js") : fromHere("server.ts");
+
+  return {
+    [ghPullfrogMcpName]: {
+      command: "node",
+      args: [serverPath],
+      env: {
+        GITHUB_INSTALLATION_TOKEN: githubInstallationToken,
+        GITHUB_REPOSITORY: githubRepository,
+      },
+    },
+  };
+}

mcp/issue.ts

@@ -0,0 +1,42 @@
+import { type } from "arktype";
+import { contextualize, tool } from "./shared.ts";
+
+export const Issue = type({
+  title: type.string.describe("the title of the issue"),
+  body: type.string.describe("the body content of the issue"),
+  labels: type.string
+    .array()
+    .describe("optional array of label names to apply to the issue")
+    .optional(),
+  assignees: type.string
+    .array()
+    .describe("optional array of usernames to assign to the issue")
+    .optional(),
+});
+
+export const IssueTool = tool({
+  name: "create_issue",
+  description: "Create a new GitHub issue",
+  parameters: Issue,
+  execute: contextualize(async ({ title, body, labels, assignees }, ctx) => {
+    const result = await ctx.octokit.rest.issues.create({
+      owner: ctx.owner,
+      repo: ctx.name,
+      title: title,
+      body: body,
+      labels: labels ?? [],
+      assignees: assignees ?? [],
+    });
+
+    return {
+      success: true,
+      issueId: result.data.id,
+      number: result.data.number,
+      url: result.data.html_url,
+      title: result.data.title,
+      state: result.data.state,
+      labels: result.data.labels?.map((label) => (typeof label === "string" ? label : label.name)),
+      assignees: result.data.assignees?.map((assignee) => assignee.login),
+    };
+  }),
+});

mcp/pr.ts

@@ -0,0 +1,43 @@
+import { execSync } from "node:child_process";
+import { type } from "arktype";
+import { log } from "../utils/cli.ts";
+import { contextualize, tool } from "./shared.ts";
+
+export const PullRequest = type({
+  title: type.string.describe("the title of the pull request"),
+  body: type.string.describe("the body content of the pull request"),
+  base: type.string.describe("the base branch to merge into (e.g., 'main')"),
+});
+
+export const PullRequestTool = tool({
+  name: "create_pull_request",
+  description: "Create a pull request from the current branch",
+  parameters: PullRequest,
+  execute: contextualize(async ({ title, body, base }, ctx) => {
+    // Get the current branch name
+    const currentBranch = execSync("git rev-parse --abbrev-ref HEAD", {
+      encoding: "utf8",
+    }).trim();
+
+    log.info(`Current branch: ${currentBranch}`);
+
+    const result = await ctx.octokit.rest.pulls.create({
+      owner: ctx.owner,
+      repo: ctx.name,
+      title: title,
+      body: body,
+      head: currentBranch,
+      base: base,
+    });
+
+    return {
+      success: true,
+      pullRequestId: result.data.id,
+      number: result.data.number,
+      url: result.data.html_url,
+      title: result.data.title,
+      head: result.data.head.ref,
+      base: result.data.base.ref,
+    };
+  }),
+});

mcp/prInfo.ts

@@ -0,0 +1,52 @@
+import { execSync } from "node:child_process";
+import { type } from "arktype";
+import { log } from "../utils/cli.ts";
+import { contextualize, tool } from "./shared.ts";
+
+export const PullRequestInfo = type({
+  pull_number: type.number.describe("The pull request number to fetch"),
+});
+
+export const PullRequestInfoTool = tool({
+  name: "get_pull_request",
+  description:
+    "Retrieve PR information and automatically prepare the repository for review by fetching and checking out the PR branch.",
+  parameters: PullRequestInfo,
+  execute: contextualize(async ({ pull_number }, ctx) => {
+    const pr = await ctx.octokit.rest.pulls.get({
+      owner: ctx.owner,
+      repo: ctx.name,
+      pull_number,
+    });
+
+    const data = pr.data;
+
+    const baseBranch = data.base.ref;
+    const headBranch = data.head.ref;
+
+    if (!baseBranch) {
+      throw new Error(`Base branch not found for PR #${pull_number}`);
+    }
+
+    // Automatically fetch and checkout branches for review
+    log.info(`Fetching base branch: origin/${baseBranch}`);
+    execSync(`git fetch origin ${baseBranch} --depth=20`, { stdio: "inherit" });
+
+    log.info(`Fetching PR branch: origin/${headBranch}`);
+    execSync(`git fetch origin ${headBranch}`, { stdio: "inherit" });
+
+    log.info(`Checking out PR branch: origin/${headBranch}`);
+    execSync(`git checkout origin/${headBranch}`, { stdio: "inherit" });
+
+    return {
+      number: data.number,
+      url: data.html_url,
+      title: data.title,
+      state: data.state,
+      draft: data.draft,
+      merged: data.merged,
+      base: baseBranch,
+      head: headBranch,
+    };
+  }),
+});

mcp/review.ts

@@ -0,0 +1,91 @@
+import type { RestEndpointMethodTypes } from "@octokit/rest";
+import { type } from "arktype";
+import { contextualize, tool } from "./shared.ts";
+
+export const Review = type({
+  pull_number: type.number.describe("The pull request number to review"),
+  body: type.string
+    .describe(
+      "Brief summary or general feedback that doesn't apply to specific code locations. Keep it concise - most feedback should be in the 'comments' array."
+    )
+    .optional(),
+  commit_id: type.string
+    .describe("Optional SHA of the commit being reviewed. Defaults to latest.")
+    .optional(),
+  comments: type({
+    path: type.string.describe("The file path to comment on (relative to repo root)"),
+    line: type.number.describe(
+      "The line number in the file (use line numbers from the diff - usually the RIGHT side/new code)"
+    ),
+    side: type
+      .enumerated("LEFT", "RIGHT")
+      .describe(
+        "Side of the diff: LEFT (old code) or RIGHT (new code). Defaults to RIGHT if not provided."
+      )
+      .optional(),
+    body: type.string.describe("The comment text for this specific line"),
+    start_line: type.number
+      .describe("Start line for multi-line comments (optional, for commenting on ranges)")
+      .optional(),
+  })
+    .array()
+    .describe(
+      "REQUIRED: Array of inline comments for specific code issues. Use this for all location-specific feedback. Use 'git diff origin/<base>...origin/<head>' to find the correct line numbers (typically use the line numbers shown on the RIGHT side for new code, LEFT side for old code)."
+    )
+    .optional(),
+});
+
+export const ReviewTool = tool({
+  name: "submit_pull_request_review",
+  description:
+    "Submit a review (approve, request changes, or comment) for an existing pull request. " +
+    "IMPORTANT: Use 'comments' array for ALL specific code issues at the line-level. " +
+    "Only use 'body' for a brief summary or feedback that doesn't apply to a specific location.",
+  parameters: Review,
+  execute: contextualize(async ({ pull_number, body, commit_id, comments = [] }, ctx) => {
+    // Get the PR to determine the head commit if commit_id not provided
+    const pr = await ctx.octokit.rest.pulls.get({
+      owner: ctx.owner,
+      repo: ctx.name,
+      pull_number,
+    });
+
+    // Compose the request
+    const params: RestEndpointMethodTypes["pulls"]["createReview"]["parameters"] = {
+      owner: ctx.owner,
+      repo: ctx.name,
+      pull_number,
+      event: "COMMENT",
+    };
+    if (body) params.body = body;
+    if (commit_id) {
+      params.commit_id = commit_id;
+    } else {
+      params.commit_id = pr.data.head.sha;
+    }
+    if (comments.length > 0) {
+      type ReviewComment = (typeof params.comments & {})[number];
+      // Convert comments to the format expected by GitHub API
+      params.comments = comments.map((comment) => {
+        const reviewComment: ReviewComment = {
+          ...comment,
+        };
+        reviewComment.side = comment.side || "RIGHT";
+        if (comment.start_line) {
+          reviewComment.start_line = comment.start_line;
+          reviewComment.start_side = comment.side || "RIGHT";
+        }
+        return reviewComment;
+      });
+    }
+    const result = await ctx.octokit.rest.pulls.createReview(params);
+    return {
+      success: true,
+      reviewId: result.data.id,
+      html_url: result.data.html_url,
+      state: result.data.state,
+      user: result.data.user?.login,
+      submitted_at: result.data.submitted_at,
+    };
+  }),
+});

mcp/server.ts

@@ -0,0 +1,25 @@
+#!/usr/bin/env node
+// Minimal GitHub Issue Comment MCP Server
+import { FastMCP } from "fastmcp";
+import { CreateCommentTool, EditCommentTool } from "./comment.ts";
+import { IssueTool } from "./issue.ts";
+import { PullRequestTool } from "./pr.ts";
+import { PullRequestInfoTool } from "./prInfo.ts";
+import { ReviewTool } from "./review.ts";
+import { addTools } from "./shared.ts";
+
+const server = new FastMCP({
+  name: "gh-pullfrog",
+  version: "0.0.1",
+});
+
+addTools(server, [
+  CreateCommentTool,
+  EditCommentTool,
+  IssueTool,
+  PullRequestTool,
+  ReviewTool,
+  PullRequestInfoTool,
+]);
+
+server.start();

mcp/shared.ts

@@ -0,0 +1,76 @@
+import { cached } from "@ark/util";
+import { Octokit } from "@octokit/rest";
+import type { StandardSchemaV1 } from "@standard-schema/spec";
+import type { FastMCP, Tool } from "fastmcp";
+import { parseRepoContext, type RepoContext } from "../utils/github.ts";
+
+export interface ToolResult {
+  content: {
+    type: "text";
+    text: string;
+  }[];
+  isError?: boolean;
+}
+
+export const getMcpContext = cached((): McpContext => {
+  const githubInstallationToken = process.env.GITHUB_INSTALLATION_TOKEN;
+  if (!githubInstallationToken) {
+    throw new Error("GITHUB_INSTALLATION_TOKEN environment variable is required");
+  }
+
+  return {
+    ...parseRepoContext(),
+    octokit: new Octokit({
+      auth: githubInstallationToken,
+    }),
+  };
+});
+
+export interface McpContext extends RepoContext {
+  octokit: Octokit;
+}
+
+export const tool = <const params>(tool: Tool<any, StandardSchemaV1<params>>) => tool;
+
+export const addTools = (server: FastMCP, tools: Tool<any, any>[]) => {
+  for (const tool of tools) {
+    server.addTool(tool);
+  }
+  return server;
+};
+
+export const contextualize =
+  <T>(executor: (params: T, ctx: McpContext) => Promise<Record<string, any>>) =>
+  async (params: T): Promise<ToolResult> => {
+    try {
+      const ctx = getMcpContext();
+      const result = await executor(params, ctx);
+      return handleToolSuccess(result);
+    } catch (error) {
+      return handleToolError(error);
+    }
+  };
+
+const handleToolSuccess = (data: Record<string, any>): ToolResult => {
+  return {
+    content: [
+      {
+        type: "text",
+        text: JSON.stringify(data, null, 2),
+      },
+    ],
+  };
+};
+
+const handleToolError = (error: unknown): ToolResult => {
+  const errorMessage = error instanceof Error ? error.message : String(error);
+  return {
+    content: [
+      {
+        type: "text",
+        text: `Error: ${errorMessage}`,
+      },
+    ],
+    isError: true,
+  };
+};

modes.ts

@@ -0,0 +1,54 @@
+import { ghPullfrogMcpName } from "./mcp/config.ts";
+
+export const modes = [
+  {
+    name: "Plan",
+    description:
+      "Create plans, break down tasks, outline steps, analyze requirements, understand scope of work, or provide task breakdowns",
+    prompt: `Follow these steps:
+1. Create initial response comment using ${ghPullfrogMcpName}/create_issue_comment saying "I'll {summary of request}" and save the commentId
+2. If the request requires understanding the codebase structure, dependencies, or conventions, gather relevant context (read AGENTS.md if it exists, understand how to install dependencies, run tests, run builds, and make changes according to best practices). Skip this step if the prompt is trivial and self-contained.
+3. Analyze the request and break it down into clear, actionable tasks
+4. Consider dependencies, potential challenges, and implementation order
+5. Create a structured plan with clear milestones
+6. Update your comment using ${ghPullfrogMcpName}/edit_issue_comment with the commentId to present the plan in a clear, organized format
+7. Continue updating the same comment as needed (never create additional comments - always use edit_issue_comment)`,
+  },
+  {
+    name: "Build",
+    description:
+      "Implement, build, create, or develop code changes; make specific changes to files or features; execute a plan; or handle tasks with specific implementation details",
+    prompt: `Follow these steps:
+1. Create initial response comment using ${ghPullfrogMcpName}/create_issue_comment saying "I'll {summary of request}" and save the commentId
+2. If the request requires understanding the codebase structure, dependencies, or conventions, gather relevant context (read AGENTS.md if it exists, understand how to install dependencies, run tests, run builds, and make changes according to best practices). Skip this step if the prompt is trivial and self-contained.
+3. Understand the requirements and any existing plan
+4. Make the necessary code changes
+5. Test your changes to ensure they work correctly
+6. Update your comment using ${ghPullfrogMcpName}/edit_issue_comment with the commentId to share progress and results
+7. Continue updating the same comment as you make progress (never create additional comments - always use edit_issue_comment)`,
+  },
+  {
+    name: "Review",
+    description:
+      "Review code, PRs, or implementations; provide feedback or suggestions; identify issues; or check code quality, style, and correctness",
+    prompt: `Follow these steps:
+1. Create initial response comment using ${ghPullfrogMcpName}/create_issue_comment saying "I'll review this" and save the commentId
+2. Get PR info with ${ghPullfrogMcpName}/get_pull_request (this automatically prepares the repository by fetching and checking out the PR branch)
+3. View diff: git diff origin/<base>...origin/<head> (use line numbers from this for inline comments, replace <base> and <head> with 'base' and 'head' from PR info)
+4. Read files from the checked-out PR branch to understand the implementation
+5. Update your comment using ${ghPullfrogMcpName}/edit_issue_comment with findings as you review
+6. When submitting review: use the 'comments' array for ALL specific code issues - include the file path and line position from the diff
+7. Only use the 'body' field for a brief summary (1-2 sentences) or for feedback that doesn't apply to a specific code location
+8. Continue updating the same comment as needed (never create additional comments - always use edit_issue_comment)`,
+  },
+  {
+    name: "Prompt",
+    description:
+      "Fallback for tasks that don't fit other workflows, direct prompts via comments, or requests requiring general assistance without a specific workflow pattern",
+    prompt: `Follow these steps:
+1. Create an initial "Progress Comment" using ${ghPullfrogMcpName}/create_issue_comment saying "I'll {summary of request}" and save the commentId
+2. Perform the requested task. Only take action if you have high confidence that you understand what is being asked. If you are not sure, ask for clarification. Take stock of the tools at your disposal.
+3. As your work progresses, update your Progress Comment to share progress and results. Using ${ghPullfrogMcpName}/edit_issue_comment and the commentId you saved earlier. Do not create additional comments unless you are explicitly asked to do so.
+4. When you finish the task, update the Progress Comment a final time to confirm completion. If you created any issues, PRs, etc, include appropriate links to it here.`,
+  },
+] as const;

package-lock.json

@@ -0,0 +1,960 @@
+{
+  "name": "@pullfrog/action",
+  "version": "0.0.96",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "name": "@pullfrog/action",
+      "version": "0.0.96",
+      "license": "MIT",
+      "dependencies": {
+        "@actions/core": "^1.11.1",
+        "@anthropic-ai/claude-agent-sdk": "^0.1.26",
+        "@ark/fs": "0.53.0",
+        "@ark/util": "0.53.0",
+        "@octokit/rest": "^22.0.0",
+        "@octokit/webhooks-types": "^7.6.1",
+        "@standard-schema/spec": "1.0.0",
+        "arktype": "2.1.25",
+        "convex": "^1.29.0",
+        "dotenv": "^17.2.3",
+        "execa": "^9.6.0",
+        "fastmcp": "^3.20.0",
+        "table": "^6.9.0"
+      },
+      "devDependencies": {
+        "@types/node": "^24.7.2",
+        "arg": "^5.0.2",
+        "esbuild": "^0.25.9",
+        "husky": "^9.0.0",
+        "typescript": "^5.9.3"
+      }
+    },
+    "../node_modules/.pnpm/@actions+core@1.11.1/node_modules/@actions/core": {
+      "version": "1.11.1",
+      "license": "MIT",
+      "dependencies": {
+        "@actions/exec": "^1.1.1",
+        "@actions/http-client": "^2.0.1"
+      },
+      "devDependencies": {
+        "@types/node": "^16.18.112"
+      }
+    },
+    "../node_modules/.pnpm/@anthropic-ai+claude-agent-sdk@0.1.26_zod@3.25.76/node_modules/@anthropic-ai/claude-agent-sdk": {
+      "version": "0.1.26",
+      "license": "SEE LICENSE IN README.md",
+      "engines": {
+        "node": ">=18.0.0"
+      },
+      "optionalDependencies": {
+        "@img/sharp-darwin-arm64": "^0.33.5",
+        "@img/sharp-darwin-x64": "^0.33.5",
+        "@img/sharp-linux-arm": "^0.33.5",
+        "@img/sharp-linux-arm64": "^0.33.5",
+        "@img/sharp-linux-x64": "^0.33.5",
+        "@img/sharp-win32-x64": "^0.33.5"
+      },
+      "peerDependencies": {
+        "zod": "^3.24.1"
+      }
+    },
+    "../node_modules/.pnpm/@ark+fs@0.53.0/node_modules/@ark/fs": {
+      "version": "0.53.0",
+      "license": "MIT"
+    },
+    "../node_modules/.pnpm/@ark+util@0.53.0/node_modules/@ark/util": {
+      "version": "0.53.0",
+      "license": "MIT"
+    },
+    "../node_modules/.pnpm/@octokit+rest@22.0.0/node_modules/@octokit/rest": {
+      "version": "22.0.0",
+      "license": "MIT",
+      "dependencies": {
+        "@octokit/core": "^7.0.2",
+        "@octokit/plugin-paginate-rest": "^13.0.1",
+        "@octokit/plugin-request-log": "^6.0.0",
+        "@octokit/plugin-rest-endpoint-methods": "^16.0.0"
+      },
+      "devDependencies": {
+        "@octokit/auth-action": "^6.0.1",
+        "@octokit/auth-app": "^8.0.1",
+        "@octokit/fixtures-server": "^8.1.0",
+        "@octokit/request": "^10.0.0",
+        "@octokit/tsconfig": "^4.0.0",
+        "@types/node": "^22.0.0",
+        "@vitest/coverage-v8": "^3.0.0",
+        "esbuild": "^0.25.0",
+        "fetch-mock": "^12.0.0",
+        "glob": "^11.0.0",
+        "nock": "^14.0.0-beta.8",
+        "prettier": "^3.2.4",
+        "semantic-release-plugin-update-version-in-files": "^2.0.0",
+        "typescript": "^5.3.3",
+        "undici": "^6.4.0",
+        "vitest": "^3.0.0"
+      },
+      "engines": {
+        "node": ">= 20"
+      }
+    },
+    "../node_modules/.pnpm/@octokit+webhooks-types@7.6.1/node_modules/@octokit/webhooks-types": {
+      "version": "7.6.1",
+      "license": "MIT",
+      "devDependencies": {}
+    },
+    "../node_modules/.pnpm/@standard-schema+spec@1.0.0/node_modules/@standard-schema/spec": {
+      "version": "1.0.0",
+      "license": "MIT",
+      "devDependencies": {
+        "tsup": "^8.3.0",
+        "typescript": "^5.6.2"
+      }
+    },
+    "../node_modules/.pnpm/@types+node@24.7.2/node_modules/@types/node": {
+      "version": "24.7.2",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "undici-types": "~7.14.0"
+      }
+    },
+    "../node_modules/.pnpm/arg@5.0.2/node_modules/arg": {
+      "version": "5.0.2",
+      "dev": true,
+      "license": "MIT",
+      "devDependencies": {
+        "chai": "^4.1.1",
+        "jest": "^27.0.6",
+        "prettier": "^2.3.2"
+      }
+    },
+    "../node_modules/.pnpm/arktype@2.1.25/node_modules/arktype": {
+      "version": "2.1.25",
+      "license": "MIT",
+      "dependencies": {
+        "@ark/schema": "0.53.0",
+        "@ark/util": "0.53.0",
+        "arkregex": "0.0.2"
+      }
+    },
+    "../node_modules/.pnpm/dotenv@17.2.3/node_modules/dotenv": {
+      "version": "17.2.3",
+      "license": "BSD-2-Clause",
+      "devDependencies": {
+        "@types/node": "^18.11.3",
+        "decache": "^4.6.2",
+        "sinon": "^14.0.1",
+        "standard": "^17.0.0",
+        "standard-version": "^9.5.0",
+        "tap": "^19.2.0",
+        "typescript": "^4.8.4"
+      },
+      "engines": {
+        "node": ">=12"
+      },
+      "funding": {
+        "url": "https://dotenvx.com"
+      }
+    },
+    "../node_modules/.pnpm/esbuild@0.25.10/node_modules/esbuild": {
+      "version": "0.25.10",
+      "dev": true,
+      "hasInstallScript": true,
+      "license": "MIT",
+      "bin": {
+        "esbuild": "bin/esbuild"
+      },
+      "engines": {
+        "node": ">=18"
+      },
+      "optionalDependencies": {
+        "@esbuild/aix-ppc64": "0.25.10",
+        "@esbuild/android-arm": "0.25.10",
+        "@esbuild/android-arm64": "0.25.10",
+        "@esbuild/android-x64": "0.25.10",
+        "@esbuild/darwin-arm64": "0.25.10",
+        "@esbuild/darwin-x64": "0.25.10",
+        "@esbuild/freebsd-arm64": "0.25.10",
+        "@esbuild/freebsd-x64": "0.25.10",
+        "@esbuild/linux-arm": "0.25.10",
+        "@esbuild/linux-arm64": "0.25.10",
+        "@esbuild/linux-ia32": "0.25.10",
+        "@esbuild/linux-loong64": "0.25.10",
+        "@esbuild/linux-mips64el": "0.25.10",
+        "@esbuild/linux-ppc64": "0.25.10",
+        "@esbuild/linux-riscv64": "0.25.10",
+        "@esbuild/linux-s390x": "0.25.10",
+        "@esbuild/linux-x64": "0.25.10",
+        "@esbuild/netbsd-arm64": "0.25.10",
+        "@esbuild/netbsd-x64": "0.25.10",
+        "@esbuild/openbsd-arm64": "0.25.10",
+        "@esbuild/openbsd-x64": "0.25.10",
+        "@esbuild/openharmony-arm64": "0.25.10",
+        "@esbuild/sunos-x64": "0.25.10",
+        "@esbuild/win32-arm64": "0.25.10",
+        "@esbuild/win32-ia32": "0.25.10",
+        "@esbuild/win32-x64": "0.25.10"
+      }
+    },
+    "../node_modules/.pnpm/execa@9.6.0/node_modules/execa": {
+      "version": "9.6.0",
+      "license": "MIT",
+      "dependencies": {
+        "@sindresorhus/merge-streams": "^4.0.0",
+        "cross-spawn": "^7.0.6",
+        "figures": "^6.1.0",
+        "get-stream": "^9.0.0",
+        "human-signals": "^8.0.1",
+        "is-plain-obj": "^4.1.0",
+        "is-stream": "^4.0.1",
+        "npm-run-path": "^6.0.0",
+        "pretty-ms": "^9.2.0",
+        "signal-exit": "^4.1.0",
+        "strip-final-newline": "^4.0.0",
+        "yoctocolors": "^2.1.1"
+      },
+      "devDependencies": {
+        "@types/node": "^22.15.21",
+        "ava": "^6.3.0",
+        "c8": "^10.1.3",
+        "get-node": "^15.0.3",
+        "is-in-ci": "^1.0.0",
+        "is-running": "^2.1.0",
+        "log-process-errors": "^12.0.1",
+        "path-exists": "^5.0.0",
+        "path-key": "^4.0.0",
+        "tempfile": "^5.0.0",
+        "tsd": "^0.32.0",
+        "typescript": "^5.8.3",
+        "which": "^5.0.0",
+        "xo": "^0.60.0"
+      },
+      "engines": {
+        "node": "^18.19.0 || >=20.5.0"
+      },
+      "funding": {
+        "url": "https://github.com/sindresorhus/execa?sponsor=1"
+      }
+    },
+    "../node_modules/.pnpm/fastmcp@3.20.0_arktype@2.1.25_effect@3.16.12/node_modules/fastmcp": {
+      "version": "3.20.0",
+      "license": "MIT",
+      "dependencies": {
+        "@modelcontextprotocol/sdk": "^1.17.2",
+        "@standard-schema/spec": "^1.0.0",
+        "execa": "^9.6.0",
+        "file-type": "^21.0.0",
+        "fuse.js": "^7.1.0",
+        "mcp-proxy": "^5.8.1",
+        "strict-event-emitter-types": "^2.0.0",
+        "undici": "^7.13.0",
+        "uri-templates": "^0.2.0",
+        "xsschema": "0.3.5",
+        "yargs": "^18.0.0",
+        "zod": "^3.25.76",
+        "zod-to-json-schema": "^3.24.6"
+      },
+      "bin": {
+        "fastmcp": "dist/bin/fastmcp.js"
+      },
+      "devDependencies": {
+        "@eslint/js": "^9.33.0",
+        "@modelcontextprotocol/inspector": "^0.16.2",
+        "@sebbo2002/semantic-release-jsr": "^3.0.1",
+        "@tsconfig/node22": "^22.0.2",
+        "@types/node": "^24.2.1",
+        "@types/uri-templates": "^0.1.34",
+        "@types/yargs": "^17.0.33",
+        "@valibot/to-json-schema": "^1.3.0",
+        "@wong2/mcp-cli": "^1.13.0",
+        "arktype": "^2.1.20",
+        "eslint": "^9.33.0",
+        "eslint-config-prettier": "^10.1.8",
+        "eslint-plugin-perfectionist": "^4.15.0",
+        "eslint-plugin-prettier": "^5.5.4",
+        "eventsource-client": "^1.1.4",
+        "get-port-please": "^3.2.0",
+        "jiti": "^2.5.1",
+        "jsr": "^0.13.5",
+        "prettier": "^3.6.2",
+        "semantic-release": "^24.2.7",
+        "tsup": "^8.5.0",
+        "typescript": "^5.9.2",
+        "typescript-eslint": "^8.39.0",
+        "valibot": "^1.1.0",
+        "vitest": "^3.2.4"
+      }
+    },
+    "../node_modules/.pnpm/husky@9.1.7/node_modules/husky": {
+      "version": "9.1.7",
+      "dev": true,
+      "license": "MIT",
+      "bin": {
+        "husky": "bin.js"
+      },
+      "engines": {
+        "node": ">=18"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/typicode"
+      }
+    },
+    "../node_modules/.pnpm/table@6.9.0/node_modules/table": {
+      "version": "6.9.0",
+      "license": "BSD-3-Clause",
+      "dependencies": {
+        "ajv": "^8.0.1",
+        "lodash.truncate": "^4.4.2",
+        "slice-ansi": "^4.0.0",
+        "string-width": "^4.2.3",
+        "strip-ansi": "^6.0.1"
+      },
+      "devDependencies": {
+        "@types/chai": "^4.2.16",
+        "@types/lodash.mapvalues": "^4.6.6",
+        "@types/lodash.truncate": "^4.4.6",
+        "@types/mocha": "^9.0.0",
+        "@types/node": "^14.14.37",
+        "@types/sinon": "^10.0.0",
+        "@types/slice-ansi": "^4.0.0",
+        "ajv-cli": "^5.0.0",
+        "ajv-keywords": "^5.0.0",
+        "chai": "^4.2.0",
+        "chalk": "^4.1.0",
+        "coveralls": "^3.1.0",
+        "eslint": "^7.32.0",
+        "eslint-config-canonical": "^25.0.0",
+        "gitdown": "^3.1.4",
+        "husky": "^4.3.6",
+        "js-beautify": "^1.14.0",
+        "lodash.mapvalues": "^4.6.0",
+        "mkdirp": "^1.0.4",
+        "mocha": "^8.2.1",
+        "nyc": "^15.1.0",
+        "semantic-release": "^17.3.1",
+        "sinon": "^12.0.1",
+        "ts-node": "^9.1.1",
+        "typescript": "4.5.2"
+      },
+      "engines": {
+        "node": ">=10.0.0"
+      }
+    },
+    "../node_modules/.pnpm/typescript@5.9.3/node_modules/typescript": {
+      "version": "5.9.3",
+      "dev": true,
+      "license": "Apache-2.0",
+      "bin": {
+        "tsc": "bin/tsc",
+        "tsserver": "bin/tsserver"
+      },
+      "devDependencies": {
+        "@dprint/formatter": "^0.4.1",
+        "@dprint/typescript": "0.93.4",
+        "@esfx/canceltoken": "^1.0.0",
+        "@eslint/js": "^9.20.0",
+        "@octokit/rest": "^21.1.1",
+        "@types/chai": "^4.3.20",
+        "@types/diff": "^7.0.1",
+        "@types/minimist": "^1.2.5",
+        "@types/mocha": "^10.0.10",
+        "@types/ms": "^0.7.34",
+        "@types/node": "latest",
+        "@types/source-map-support": "^0.5.10",
+        "@types/which": "^3.0.4",
+        "@typescript-eslint/rule-tester": "^8.24.1",
+        "@typescript-eslint/type-utils": "^8.24.1",
+        "@typescript-eslint/utils": "^8.24.1",
+        "azure-devops-node-api": "^14.1.0",
+        "c8": "^10.1.3",
+        "chai": "^4.5.0",
+        "chokidar": "^4.0.3",
+        "diff": "^7.0.0",
+        "dprint": "^0.49.0",
+        "esbuild": "^0.25.0",
+        "eslint": "^9.20.1",
+        "eslint-formatter-autolinkable-stylish": "^1.4.0",
+        "eslint-plugin-regexp": "^2.7.0",
+        "fast-xml-parser": "^4.5.2",
+        "glob": "^10.4.5",
+        "globals": "^15.15.0",
+        "hereby": "^1.10.0",
+        "jsonc-parser": "^3.3.1",
+        "knip": "^5.44.4",
+        "minimist": "^1.2.8",
+        "mocha": "^10.8.2",
+        "mocha-fivemat-progress-reporter": "^0.1.0",
+        "monocart-coverage-reports": "^2.12.1",
+        "ms": "^2.1.3",
+        "picocolors": "^1.1.1",
+        "playwright": "^1.50.1",
+        "source-map-support": "^0.5.21",
+        "tslib": "^2.8.1",
+        "typescript": "^5.7.3",
+        "typescript-eslint": "^8.24.1",
+        "which": "^3.0.1"
+      },
+      "engines": {
+        "node": ">=14.17"
+      }
+    },
+    "node_modules/@actions/core": {
+      "resolved": "../node_modules/.pnpm/@actions+core@1.11.1/node_modules/@actions/core",
+      "link": true
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+    "node_modules/prettier": {
+      "version": "3.6.2",
+      "resolved": "https://registry.npmjs.org/prettier/-/prettier-3.6.2.tgz",
+      "integrity": "sha512-I7AIg5boAr5R0FFtJ6rCfD+LFsWHp81dolrFD8S79U9tb8Az2nGrJncnMSnys+bpQJfRUzqs9hnA81OAA3hCuQ==",
+      "license": "MIT",
+      "bin": {
+        "prettier": "bin/prettier.cjs"
+      },
+      "engines": {
+        "node": ">=14"
+      },
+      "funding": {
+        "url": "https://github.com/prettier/prettier?sponsor=1"
+      }
+    },
+    "node_modules/table": {
+      "resolved": "../node_modules/.pnpm/table@6.9.0/node_modules/table",
+      "link": true
+    },
+    "node_modules/typescript": {
+      "resolved": "../node_modules/.pnpm/typescript@5.9.3/node_modules/typescript",
+      "link": true
+    }
+  }
+}

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@pullfrog/action",
-  "version": "0.0.8",
+  "version": "0.0.98",
   "type": "module",
   "files": [
     "index.js",
@@ -12,31 +12,38 @@
     "main.js",
     "main.d.ts"
   ],
-  "directories": {
-    "example": "examples"
-  },
   "scripts": {
     "test": "echo \"Error: no test specified\" && exit 1",
     "typecheck": "tsc --noEmit",
     "build": "node esbuild.config.js",
-    "build:npm": "zshy",
-    "build:dev": "node esbuild.config.js",
-    "prepare": "husky",
-    "play": "tsx play.ts"
+    "play": "node play.ts",
+    "scratch": "node scratch.ts",
+    "upDeps": "pnpm up --latest",
+    "lock": "pnpm --ignore-workspace install",
+    "prepare": "husky"
   },
   "dependencies": {
     "@actions/core": "^1.11.1",
-    "dotenv": "^17.2.2",
+    "@anthropic-ai/claude-agent-sdk": "0.1.37",
+    "@openai/codex-sdk": "0.58.0",
+    "@ark/fs": "0.53.0",
+    "@ark/util": "0.53.0",
+    "@octokit/rest": "^22.0.0",
+    "@octokit/webhooks-types": "^7.6.1",
+    "@standard-schema/spec": "1.0.0",
+    "arktype": "2.1.25",
+    "dotenv": "^17.2.3",
     "execa": "^9.6.0",
-    "table": "^6.9.0"
+    "fastmcp": "^3.20.0",
+    "table": "^6.9.0",
+    "zod": "^3.25.76"
   },
   "devDependencies": {
-    "@types/node": "^20.10.0",
-    "commander": "^14.0.0",
+    "@types/node": "^24.7.2",
+    "arg": "^5.0.2",
     "esbuild": "^0.25.9",
     "husky": "^9.0.0",
-    "typescript": "^5.3.0",
-    "zshy": "^0.4.1"
+    "typescript": "^5.9.3"
   },
   "repository": {
     "type": "git",
@@ -44,7 +51,7 @@
   },
   "keywords": [],
   "author": "",
-  "license": "ISC",
+  "license": "MIT",
   "bugs": {
     "url": "https://github.com/pullfrog/action/issues"
   },

play.ts

@@ -1,160 +1,143 @@
 import { existsSync, readFileSync } from "node:fs";
-import { dirname, extname, join, resolve } from "node:path";
-import { fileURLToPath, pathToFileURL } from "node:url";
-import { Command } from "commander";
+import { extname, join, resolve } from "node:path";
+import { pathToFileURL } from "node:url";
+import { fromHere } from "@ark/fs";
+import arg from "arg";
 import { config } from "dotenv";
-import { main } from "./main";
-import { runAct } from "./utils/act";
-import { setupTestRepo } from "./utils/setup";
+import { type Inputs, main } from "./main.ts";
+import { log } from "./utils/cli.ts";
+import { setupTestRepo } from "./utils/setup.ts";
 
-// Load environment variables from .env file
 config();
 
+export async function run(
+  prompt: string
+): Promise<{ success: boolean; output?: string | undefined; error?: string | undefined }> {
+  try {
+    const tempDir = join(process.cwd(), ".temp");
+    setupTestRepo({ tempDir, forceClean: true });
 
-const __filename = fileURLToPath(import.meta.url);
-const __dirname = dirname(__filename);
+    const originalCwd = process.cwd();
+    process.chdir(tempDir);
 
-async function loadPrompt(filePath: string): Promise<string> {
-  const ext = extname(filePath).toLowerCase();
+    const inputs: Inputs = {
+      prompt,
+      openai_api_key: process.env.OPENAI_API_KEY,
+      anthropic_api_key: process.env.ANTHROPIC_API_KEY,
+      agent: "codex",
+    };
 
-  // Try to resolve the file path
-  let resolvedPath: string;
+    const result = await main(inputs);
 
-  // First try as fixtures path
-  const fixturesPath = join(__dirname, "fixtures", filePath);
-  if (existsSync(fixturesPath)) {
-    resolvedPath = fixturesPath;
-  } else if (existsSync(filePath)) {
-    resolvedPath = resolve(filePath);
-  } else {
-    throw new Error(`File not found: ${filePath}`);
-  }
+    process.chdir(originalCwd);
 
-  switch (ext) {
-    case ".txt": {
-      // Plain text - pass directly as prompt
-      return readFileSync(resolvedPath, "utf8").trim();
+    if (result.success) {
+      log.success("Action completed successfully");
+      return { success: true, output: result.output || undefined, error: undefined };
+    } else {
+      log.error(`Action failed: ${result.error || "Unknown error"}`);
+      return { success: false, error: result.error || undefined, output: undefined };
     }
-
-    case ".json": {
-      // JSON - stringify and pass as prompt
-      const content = readFileSync(resolvedPath, "utf8");
-      const parsed = JSON.parse(content);
-      return JSON.stringify(parsed, null, 2);
-    }
-
-    case ".ts": {
-      // TypeScript - dynamic import and stringify default export
-      const fileUrl = pathToFileURL(resolvedPath).href;
-      const module = await import(fileUrl);
-
-      if (!module.default) {
-        throw new Error(`TypeScript file ${filePath} must have a default export`);
-      }
-
-      // If it's a string, use it directly
-      if (typeof module.default === "string") {
-        return module.default;
-      }
-
-      // If it's a MainParams object with a prompt field, extract the prompt
-      if (typeof module.default === "object" && module.default.prompt) {
-        return module.default.prompt;
-      }
-
-      // Otherwise stringify it
-      return JSON.stringify(module.default, null, 2);
-    }
-
-    default:
-      throw new Error(`Unsupported file type: ${ext}. Supported types: .txt, .json, .ts`);
+  } catch (err) {
+    const errorMessage = (err as Error).message;
+    log.error(`Error: ${errorMessage}`);
+    return { success: false, error: errorMessage, output: undefined };
   }
 }
 
-async function runPlay(filePath: string, options: { act?: boolean }): Promise<void> {
-  try {
-    // Load the prompt from the specified file
-    const prompt = await loadPrompt(filePath);
+if (import.meta.url === `file://${process.argv[1]}`) {
+  const args = arg({
+    "--help": Boolean,
+    "--raw": String,
+    "-h": "--help",
+  });
 
-    if (options.act) {
-      // Use Docker/act to run the action
-      console.log("🐳 Running with Docker/act...");
-      runAct(prompt);
+  if (args["--help"]) {
+    log.info(`
+Usage: tsx play.ts [file] [options]
+
+Test the Pullfrog action with various prompts.
+
+Arguments:
+  file                    Prompt file to use (.txt, .json, or .ts) [default: fixtures/basic.txt]
+
+Options:
+  --raw [prompt]          Use raw string as prompt instead of loading from file
+  -h, --help              Show this help message
+
+Examples:
+  tsx play.ts                        # Use default fixture
+  tsx play.ts fixtures/basic.txt     # Use specific text file
+  tsx play.ts custom.json            # Use JSON file
+  tsx play.ts fixtures/test.ts       # Use TypeScript file
+  tsx play.ts --raw "Hello world"    # Use raw string as prompt
+    `);
+    process.exit(0);
+  }
+
+  let prompt: string;
+
+  if (args["--raw"]) {
+    prompt = args["--raw"];
+  } else {
+    const filePath = args._[0] || "basic.txt";
+
+    const ext = extname(filePath).toLowerCase();
+    let resolvedPath: string;
+
+    const fixturesPath = fromHere("fixtures", filePath);
+    if (existsSync(fixturesPath)) {
+      resolvedPath = fixturesPath;
+    } else if (existsSync(filePath)) {
+      resolvedPath = resolve(filePath);
     } else {
-      // Setup test repository and run directly
-      const tempDir = join(process.cwd(), ".temp");
-      setupTestRepo({ tempDir, forceClean: true });
-
-      // Change to the temp directory
-      process.chdir(tempDir);
-
-      console.log("🚀 Running test in .temp directory...");
-      console.log("─".repeat(50));
-      console.log(`Prompt from ${filePath}:`);
-      console.log(prompt);
-      console.log("─".repeat(50));
-
-      // Set environment variables from our .env for the action to use
-      const { EXPECTED_INPUTS } = await import("./main");
-      EXPECTED_INPUTS.forEach((inputName) => {
-        const value = process.env[inputName];
-        if (value) {
-          process.env[`INPUT_${inputName.toLowerCase()}`] = value;
-        }
-      });
-
-      // Run main with the new params structure
-      const inputs: any = {
-        prompt,
-        anthropic_api_key: process.env.ANTHROPIC_API_KEY || "",
-      };
-      
-      // Add optional properties only if they exist
-      if (process.env.GITHUB_TOKEN) {
-        inputs.github_token = process.env.GITHUB_TOKEN;
-      }
-      
-      if (process.env.GITHUB_INSTALLATION_TOKEN) {
-        inputs.github_installation_token = process.env.GITHUB_INSTALLATION_TOKEN;
-      }
-
-      const result = await main({
-        inputs,
-        env: process.env as Record<string, string>,
-        cwd: process.cwd(),
-      });
-
-      if (result.success) {
-        console.log("✅ Test completed successfully");
-        if (result.output) {
-          console.log("Output:", result.output);
-        }
-      } else {
-        console.error("❌ Test failed:", result.error);
-        process.exit(1);
-      }
+      throw new Error(`File not found: ${filePath}`);
     }
-  } catch (error) {
-    console.error("❌ Error:", (error as Error).message);
+
+    switch (ext) {
+      case ".txt": {
+        prompt = readFileSync(resolvedPath, "utf8").trim();
+        break;
+      }
+
+      case ".json": {
+        const content = readFileSync(resolvedPath, "utf8");
+        const parsed = JSON.parse(content);
+        prompt = JSON.stringify(parsed, null, 2);
+        break;
+      }
+
+      case ".ts": {
+        const fileUrl = pathToFileURL(resolvedPath).href;
+        const module = await import(fileUrl);
+
+        if (!module.default) {
+          throw new Error(`TypeScript file ${filePath} must have a default export`);
+        }
+
+        if (typeof module.default === "string") {
+          prompt = module.default;
+        } else if (typeof module.default === "object" && module.default.prompt) {
+          prompt = module.default.prompt;
+        } else {
+          prompt = JSON.stringify(module.default, null, 2);
+        }
+        break;
+      }
+
+      default:
+        throw new Error(`Unsupported file type: ${ext}. Supported types: .txt, .json, .ts`);
+    }
+  }
+
+  try {
+    const result = await run(prompt);
+
+    if (!result.success) {
+      process.exit(1);
+    }
+  } catch (err) {
+    log.error((err as Error).message);
     process.exit(1);
   }
 }
-
-// Set up CLI
-const program = new Command();
-
-program
-  .name("play")
-  .description("Test the Pullfrog action with various prompts")
-  .version("1.0.0")
-  .argument("[file]", "Prompt file to use (.txt, .json, or .ts)", "fixtures/basic.txt")
-  .option("--act", "Use Docker/act to run the action instead of running directly")
-  .action(async (file: string, options: { act?: boolean }) => {
-    await runPlay(file, options);
-  });
-
-// Parse arguments and run
-program.parseAsync(process.argv).catch((error) => {
-  console.error("Fatal error:", error);
-  process.exit(1);
-});

scratch.ts

@@ -0,0 +1,16 @@
+import { spawnSync } from "child_process";
+import { existsSync } from "fs";
+
+function findCliPath(name: string): string | null {
+    
+      const result = spawnSync("which", [name], { encoding: "utf-8" });
+      if (result.status === 0 && result.stdout) {
+        const cliPath = result.stdout.trim();
+        if (cliPath && existsSync(cliPath)) {
+          return cliPath;
+        }
+      }
+    return null;
+  }
+  
+console.log(findCliPath("codei"));

todo.md

@@ -0,0 +1,23 @@
+## CURRENT
+
+[] handle progressive comment updating from pullfrog mcp
+
+## MAYBE
+
+[] investigate repo config file
+[] try to find heavy claude code user
+[] investigate including terminal output from bash commands as collapsed groups from claude
+[] test initialization trade offs for pullfrog.yml
+
+## DONE
+ 
+[x] investigate mcp naming convention
+[x] input just accepts one key for API key
+[x] look into trigger.yml without installation
+[x] cancel installation token at the end of github action
+[x] avoid exposing env adding ## SECURITY prompt
+[x] add modes to prompt 
+[x] progressively update comment
+[x] don't allow rejecting prs
+[x] fix pnpm caching
+[x] fix prompt to avoid narration like "I just read all tools from MCP server"

tsconfig.json

@@ -1,45 +1,23 @@
 {
-  // Visit https://aka.ms/tsconfig to read more about this file
   "compilerOptions": {
-    // File Layout
-    // "rootDir": "./src",
     "outDir": "./dist",
-
-    // Environment Settings
-    // See also https://aka.ms/tsconfig/module
-    "module": "esnext",
-    "moduleResolution": "bundler",
-    "target": "esnext",
-    "types": [],
-    // For nodejs:
-    // "lib": ["esnext"],
-    // "types": ["node"],
-    // and npm install -D @types/node
-
-    // Other Outputs
-    "sourceMap": true,
-    "declaration": true,
-    "declarationMap": true,
-
-    // Stricter Typechecking Options
-    "noUncheckedIndexedAccess": true,
-    "exactOptionalPropertyTypes": true,
-
-    // Style Options
-    // "noImplicitReturns": true,
-    // "noImplicitOverride": true,
-    // "noUnusedLocals": true,
-    // "noUnusedParameters": true,
-    // "noFallthroughCasesInSwitch": true,
-    // "noPropertyAccessFromIndexSignature": true,
-
-    // Recommended Options
+    "module": "NodeNext",
+    "target": "ESNext",
+    "moduleResolution": "NodeNext",
+    "lib": ["ESNext"],
+    "allowImportingTsExtensions": true,
+    "rewriteRelativeImportExtensions": true,
+    "skipLibCheck": true,
     "strict": true,
-    "jsx": "react-jsx",
-    "verbatimModuleSyntax": true,
-    "isolatedModules": true,
     "noUncheckedSideEffectImports": true,
+    "declaration": true,
+    "verbatimModuleSyntax": true,
+    "esModuleInterop": true,
+    "resolveJsonModule": true,
+    "exactOptionalPropertyTypes": true,
+    "forceConsistentCasingInFileNames": true,
+    "stripInternal": true,
     "moduleDetection": "force",
-    "skipLibCheck": true
+    "useUnknownInCatchVariables": true
   }
 }

utils/act.ts

@@ -1,89 +0,0 @@
-import { execSync } from "node:child_process";
-import { existsSync } from "node:fs";
-import { dirname, join } from "node:path";
-import { fileURLToPath } from "node:url";
-import { config } from "dotenv";
-import { buildAction, setupTestRepo } from "./setup";
-
-const __filename = fileURLToPath(import.meta.url);
-const __dirname = dirname(__filename);
-
-// Environment variables that should be passed as secrets to the workflow
-const ENV_VARS = ["ANTHROPIC_API_KEY", "GITHUB_INSTALLATION_TOKEN"];
-
-export function runAct(prompt: string): void {
-  const tempDir = join(__dirname, "..", ".temp");
-  const actionPath = join(__dirname, "..");
-  const envPath = join(__dirname, "..", "..", ".env");
-
-  // Setup test repository
-  setupTestRepo({ tempDir });
-
-  // Load environment variables
-  config({ path: envPath });
-
-  // Build action bundles
-  buildAction(actionPath);
-
-  const workflowPath = join(tempDir, ".github", "workflows", "pullfrog.yml");
-
-  // Create minimal dist for act (avoids pnpm symlink issues)
-  const distPath = join(actionPath, ".act-dist");
-  console.log("📦 Creating minimal distribution for act...");
-  execSync(`rm -rf "${distPath}" && mkdir -p "${distPath}"`, { shell: "/bin/bash" });
-
-  // Copy only necessary files (bundled, no node_modules needed)
-  ["action.yml", "entry.cjs", "index.cjs", "package.json"].forEach((file) => {
-    const src = join(actionPath, file);
-    if (existsSync(src)) {
-      execSync(`cp "${src}" "${distPath}"`);
-    }
-  });
-
-  try {
-    // Build the act command with input directly
-    // Properly escape the prompt for shell
-    const escapedPrompt = prompt.replace(/'/g, "'\\''");
-
-    const actCommandParts = [
-      "act",
-      "workflow_dispatch",
-      "-W",
-      workflowPath,
-      "--input",
-      `prompt='${escapedPrompt}'`,
-      "--local-repository",
-      `pullfrog/action@v0=${distPath}`, // Use minimal dist without symlinks
-    ];
-
-    // Add environment variables as secrets that will be available to the workflow
-    ENV_VARS.forEach((key) => {
-      if (process.env[key]) {
-        actCommandParts.push("-s", key);
-      }
-    });
-
-    // We only need the specific ENV_VARS, no need to add other variables
-
-    const actCommand = actCommandParts.join(" ");
-
-    console.log("🚀 Running act with prompt:");
-    console.log("─".repeat(50));
-    console.log(prompt);
-    console.log("─".repeat(50));
-    console.log("");
-
-    // Execute act
-    execSync(actCommand, {
-      stdio: "inherit",
-      cwd: join(__dirname, "..", ".."),
-    });
-    // Clean up
-    execSync(`rm -rf "${distPath}"`);
-  } catch (error) {
-    // Clean up on error
-    execSync(`rm -rf "${distPath}"`);
-    console.error("❌ Act execution failed:", (error as Error).message);
-    process.exit(1);
-  }
-}

utils/api.ts

@@ -0,0 +1,94 @@
+import type { AgentName } from "../main.ts";
+import { log } from "./cli.ts";
+import type { RepoContext } from "./github.ts";
+
+export interface Mode {
+  id: string;
+  name: string;
+  description: string;
+  prompt: string;
+}
+
+export interface RepoSettings {
+  defaultAgent: AgentName | null;
+  webAccessLevel: "full_access" | "limited";
+  webAccessAllowTrusted: boolean;
+  webAccessDomains: string;
+  modes: Mode[];
+}
+
+export const DEFAULT_REPO_SETTINGS: RepoSettings = {
+  defaultAgent: null,
+  webAccessLevel: "full_access",
+  webAccessAllowTrusted: false,
+  webAccessDomains: "",
+  modes: [],
+};
+
+/**
+ * Fetch repository settings from the Pullfrog API
+ * Returns defaults if repo doesn't exist or fetch fails
+ */
+export async function fetchRepoSettings({
+  token,
+  repoContext,
+}: {
+  token: string;
+  repoContext: RepoContext;
+}): Promise<RepoSettings> {
+  log.info("Fetching repository settings...");
+  const settings = await getRepoSettings(token, repoContext);
+  log.info("Repository settings fetched");
+  return settings;
+}
+
+/**
+ * Fetch repository settings from the Pullfrog API with fallback to defaults
+ * Returns agent, permissions, and workflows (excludes triggers)
+ * Returns defaults if repo doesn't exist or fetch fails
+ */
+export async function getRepoSettings(
+  token: string,
+  repoContext: RepoContext
+): Promise<RepoSettings> {
+  const apiUrl = process.env.API_URL || "https://pullfrog.ai";
+
+  // Add timeout to prevent hanging (5 seconds)
+  const timeoutMs = 5000;
+  const controller = new AbortController();
+  const timeoutId = setTimeout(() => controller.abort(), timeoutMs);
+
+  try {
+    const response = await fetch(
+      `${apiUrl}/api/repo/${repoContext.owner}/${repoContext.name}/settings`,
+      {
+        method: "GET",
+        headers: {
+          Authorization: `Bearer ${token}`,
+          "Content-Type": "application/json",
+        },
+        signal: controller.signal,
+      }
+    );
+
+    clearTimeout(timeoutId);
+
+    if (!response.ok) {
+      // If API returns 404 or other error, fall back to defaults
+      return DEFAULT_REPO_SETTINGS;
+    }
+
+    const settings = (await response.json()) as RepoSettings | null;
+
+    // If API returns null (repo doesn't exist), return defaults
+    if (settings === null) {
+      return DEFAULT_REPO_SETTINGS;
+    }
+
+    return settings;
+  } catch {
+    clearTimeout(timeoutId);
+    // If fetch fails (network error, timeout, etc.), fall back to defaults
+    return DEFAULT_REPO_SETTINGS;
+  }
+}

utils/cli.ts

@@ -0,0 +1,282 @@
+/**
+ * CLI output utilities that work well in both local and GitHub Actions environments
+ */
+
+import * as core from "@actions/core";
+import { spawnSync } from "child_process";
+import { existsSync } from "fs";
+
+const isGitHubActions = !!process.env.GITHUB_ACTIONS;
+const isDebugEnabled = process.env.LOG_LEVEL === "debug";
+
+/**
+ * Start a collapsed group (GitHub Actions) or regular group (local)
+ */
+function startGroup(name: string): void {
+  if (isGitHubActions) {
+    core.startGroup(name);
+  } else {
+    console.group(name);
+  }
+}
+
+/**
+ * End a collapsed group
+ */
+function endGroup(): void {
+  if (isGitHubActions) {
+    core.endGroup();
+  } else {
+    console.groupEnd();
+  }
+}
+
+/**
+ * Print a formatted box with text (for console output)
+ */
+function boxString(
+  text: string,
+  options?: {
+    title?: string;
+    maxWidth?: number;
+    indent?: string;
+    padding?: number;
+  }
+): string {
+  const { title, maxWidth = 80, indent = "", padding = 1 } = options || {};
+
+  const lines = text.trim().split("\n");
+  const wrappedLines: string[] = [];
+
+  for (const line of lines) {
+    if (line.length <= maxWidth - padding * 2) {
+      wrappedLines.push(line);
+    } else {
+      const words = line.split(" ");
+      let currentLine = "";
+
+      for (const word of words) {
+        const testLine = currentLine ? `${currentLine} ${word}` : word;
+        if (testLine.length <= maxWidth - padding * 2) {
+          currentLine = testLine;
+        } else {
+          if (currentLine) {
+            wrappedLines.push(currentLine);
+            currentLine = word;
+          } else {
+            wrappedLines.push(word.substring(0, maxWidth - padding * 2));
+            currentLine = word.substring(maxWidth - padding * 2);
+          }
+        }
+      }
+
+      if (currentLine) {
+        wrappedLines.push(currentLine);
+      }
+    }
+  }
+
+  const maxLineLength = Math.max(...wrappedLines.map((line) => line.length));
+  const boxWidth = maxLineLength + padding * 2;
+
+  let result = "";
+
+  if (title) {
+    const titleLine = ` ${title} `;
+    const titlePadding = Math.max(0, boxWidth - titleLine.length);
+    result += `${indent}┌${titleLine}${"─".repeat(titlePadding)}┐\n`;
+  }
+
+  if (!title) {
+    result += `${indent}┌${"─".repeat(boxWidth)}┐\n`;
+  }
+
+  for (const line of wrappedLines) {
+    const paddedLine = line.padEnd(maxLineLength);
+    result += `${indent}│${" ".repeat(padding)}${paddedLine}${" ".repeat(padding)}│\n`;
+  }
+
+  result += `${indent}└${"─".repeat(boxWidth)}┘`;
+
+  return result;
+}
+
+/**
+ * Print a formatted box with text
+ * Works well in both local and GitHub Actions environments
+ */
+function box(
+  text: string,
+  options?: {
+    title?: string;
+    maxWidth?: number;
+  }
+): void {
+  const boxContent = boxString(text, options);
+  core.info(boxContent);
+  if (isGitHubActions) {
+    // Add as markdown code block for summary (no headers)
+    core.summary.addRaw(`\`\`\`\n${text}\n\`\`\`\n`);
+  }
+}
+
+/**
+ * Add a table to GitHub Actions job summary (rich formatting)
+ * Also logs to console. Only use this once at the end of execution.
+ */
+async function summaryTable(
+  rows: Array<Array<{ data: string; header?: boolean } | string>>,
+  options?: {
+    title?: string;
+  }
+): Promise<void> {
+  const { title } = options || {};
+
+  // Convert rows to format expected by Job Summaries API
+  const formattedRows = rows.map((row) =>
+    row.map((cell) => {
+      if (typeof cell === "string") {
+        return { data: cell };
+      }
+      return cell;
+    })
+  );
+
+  if (isGitHubActions) {
+    const summary = core.summary;
+    if (title) {
+      summary.addRaw(`**${title}**\n\n`);
+    }
+    summary.addTable(formattedRows);
+    // Note: Don't write immediately, let it accumulate with other summary content
+  }
+
+  // Also log to console for visibility
+  if (title) {
+    core.info(`\n${title}`);
+  }
+  const tableText = formattedRows.map((row) => row.map((cell) => cell.data).join(" | ")).join("\n");
+  core.info(`\n${tableText}\n`);
+}
+
+/**
+ * Print a separator line
+ */
+function separator(length: number = 50): void {
+  const separatorText = "─".repeat(length);
+  core.info(separatorText);
+  if (isGitHubActions) {
+    core.summary.addRaw(`---\n`);
+  }
+}
+
+/**
+ * Main logging utility object - import this once and access all utilities
+ */
+export const log = {
+  /**
+   * Print info message
+   */
+  info: (message: string): void => {
+    core.info(message);
+    if (isGitHubActions) {
+      core.summary.addRaw(`${message}\n`);
+    }
+  },
+
+  /**
+   * Print warning message
+   */
+  warning: (message: string): void => {
+    core.warning(message);
+    if (isGitHubActions) {
+      core.summary.addRaw(`⚠️ ${message}\n`);
+    }
+  },
+
+  /**
+   * Print error message
+   */
+  error: (message: string): void => {
+    core.error(message);
+    if (isGitHubActions) {
+      core.summary.addRaw(`❌ ${message}\n`);
+    }
+  },
+
+  /**
+   * Print success message
+   */
+  success: (message: string): void => {
+    const successMessage = `✅ ${message}`;
+    core.info(successMessage);
+    if (isGitHubActions) {
+      core.summary.addRaw(`${successMessage}\n`);
+    }
+  },
+
+  /**
+   * Print debug message (only if LOG_LEVEL=debug)
+   */
+  debug: (message: string): void => {
+    if (isDebugEnabled) {
+      if (isGitHubActions) {
+        core.debug(message);
+      } else {
+        core.info(`[DEBUG] ${message}`);
+      }
+    }
+  },
+
+  /**
+   * Print a formatted box with text
+   */
+  box,
+
+  /**
+   * Add a table to GitHub Actions job summary (rich formatting)
+   * Only use this once at the end of execution
+   */
+  summaryTable,
+
+  /**
+   * Print a separator line
+   */
+  separator,
+
+  /**
+   * Write all accumulated summary content to the job summary
+   * Call this at the end of execution to finalize the summary
+   */
+  writeSummary: async (): Promise<void> => {
+    if (isGitHubActions) {
+      await core.summary.write();
+    }
+  },
+
+  /**
+   * Start a collapsed group (GitHub Actions) or regular group (local)
+   */
+  startGroup,
+
+  /**
+   * End a collapsed group
+   */
+  endGroup,
+};
+
+/**
+ * Finds a CLI executable path by checking if it's installed globally
+ * @param name The name of the CLI executable to find
+ * @returns The path to the CLI executable, or null if not found
+ */
+export function findCliPath(name: string): string | null {
+  const result = spawnSync("which", [name], { encoding: "utf-8" });
+  if (result.status === 0 && result.stdout) {
+    const cliPath = result.stdout.trim();
+    if (cliPath && existsSync(cliPath)) {
+      return cliPath;
+    }
+  }
+  return null;
+}

utils/files.ts

@@ -1,13 +0,0 @@
-import { mkdtempSync, writeFileSync } from "node:fs";
-import { tmpdir } from "node:os";
-import { join } from "node:path";
-
-/**
- * Create a temporary file with the given content
- */
-export function createTempFile(content: string, filename = "temp.txt"): string {
-  const tempDir = mkdtempSync(join(tmpdir(), "pullfrog-"));
-  const filePath = join(tempDir, filename);
-  writeFileSync(filePath, content);
-  return filePath;
-}

utils/github.ts

@@ -1,56 +1,315 @@
+import { createSign } from "node:crypto";
 import * as core from "@actions/core";
+import { log } from "./cli.ts";
 
-/**
- * Setup GitHub installation token for the action
- */
-export async function setupGitHubInstallationToken(): Promise<string> {
-  // Check if we have an installation token from inputs or environment
+export interface InstallationToken {
+  token: string;
+  expires_at: string;
+  installation_id: number;
+  repository: string;
+  ref: string;
+  runner_environment: string;
+  owner?: string;
+}
+
+interface GitHubAppConfig {
+  appId: string;
+  privateKey: string;
+  repoOwner: string;
+  repoName: string;
+}
+
+interface Installation {
+  id: number;
+  account: {
+    login: string;
+    type: string;
+  };
+}
+
+interface Repository {
+  owner: {
+    login: string;
+  };
+  name: string;
+}
+
+interface InstallationTokenResponse {
+  token: string;
+  expires_at: string;
+}
+
+interface RepositoriesResponse {
+  repositories: Repository[];
+}
+
+function checkExistingToken(): string | null {
   const inputToken = core.getInput("github_installation_token");
   const envToken = process.env.GITHUB_INSTALLATION_TOKEN;
-  
-  const existingToken = inputToken || envToken;
-  if (existingToken) {
-    core.info("Using provided GitHub installation token");
-    return existingToken;
-  }
+  return inputToken || envToken || null;
+}
 
-  core.info("No cached installation token found, generating OIDC token...");
+function isGitHubActionsEnvironment(): boolean {
+  return Boolean(process.env.GITHUB_ACTIONS);
+}
+
+async function acquireTokenViaOIDC(): Promise<string> {
+  log.info("Generating OIDC token...");
+
+  const oidcToken = await core.getIDToken("pullfrog-api");
+  log.info("OIDC token generated successfully");
+
+  const apiUrl = process.env.API_URL || "https://pullfrog.ai";
+
+  log.info("Exchanging OIDC token for installation token...");
+
+  // Add timeout to prevent long waits (5 seconds)
+  const timeoutMs = 5000;
+  const controller = new AbortController();
+  const timeoutId = setTimeout(() => controller.abort(), timeoutMs);
 
   try {
-    // Generate OIDC token for our API
-    const oidcToken = await core.getIDToken("pullfrog-api");
-    core.info("OIDC token generated successfully");
-
-    // Exchange OIDC token for installation token
-    const apiUrl = process.env.API_URL || "https://pullfrog.ai";
-
     const tokenResponse = await fetch(`${apiUrl}/api/github/installation-token`, {
       method: "POST",
       headers: {
         Authorization: `Bearer ${oidcToken}`,
         "Content-Type": "application/json",
       },
+      signal: controller.signal,
     });
 
+    clearTimeout(timeoutId);
+
     if (!tokenResponse.ok) {
-      const errorText = await tokenResponse.text();
-      throw new Error(
-        `Token exchange failed: ${tokenResponse.status} ${tokenResponse.statusText} - ${errorText}`
-      );
+      throw new Error(`Token exchange failed: ${tokenResponse.status} ${tokenResponse.statusText}`);
     }
 
-    const tokenData = await tokenResponse.json();
-    core.info(
-      `Installation token obtained for ${tokenData.owner}/${tokenData.repository || "all repositories"}`
-    );
-
-    // Set the token as an environment variable for this run
-    process.env.GITHUB_INSTALLATION_TOKEN = tokenData.token;
+    const tokenData = (await tokenResponse.json()) as InstallationToken;
+    log.info(`Installation token obtained for ${tokenData.repository || "all repositories"}`);
 
     return tokenData.token;
   } catch (error) {
+    clearTimeout(timeoutId);
+
+    if (error instanceof Error && error.name === "AbortError") {
+      throw new Error(`Token exchange timed out after ${timeoutMs}ms`);
+    }
+    throw error;
+  }
+}
+
+const base64UrlEncode = (str: string): string => {
+  return Buffer.from(str)
+    .toString("base64")
+    .replace(/\+/g, "-")
+    .replace(/\//g, "_")
+    .replace(/=/g, "");
+};
+
+const generateJWT = (appId: string, privateKey: string): string => {
+  const now = Math.floor(Date.now() / 1000);
+  const payload = {
+    iat: now - 60,
+    exp: now + 5 * 60,
+    iss: appId,
+  };
+
+  const header = {
+    alg: "RS256",
+    typ: "JWT",
+  };
+
+  const encodedHeader = base64UrlEncode(JSON.stringify(header));
+  const encodedPayload = base64UrlEncode(JSON.stringify(payload));
+  const signaturePart = `${encodedHeader}.${encodedPayload}`;
+
+  const signature = createSign("RSA-SHA256")
+    .update(signaturePart)
+    .sign(privateKey, "base64")
+    .replace(/\+/g, "-")
+    .replace(/\//g, "_")
+    .replace(/=/g, "");
+
+  return `${signaturePart}.${signature}`;
+};
+
+const githubRequest = async <T>(
+  path: string,
+  options: {
+    method?: string;
+    headers?: Record<string, string>;
+    body?: string;
+  } = {}
+): Promise<T> => {
+  const { method = "GET", headers = {}, body } = options;
+
+  const url = `https://api.github.com${path}`;
+  const requestHeaders = {
+    Accept: "application/vnd.github.v3+json",
+    "User-Agent": "Pullfrog-Installation-Token-Generator/1.0",
+    ...headers,
+  };
+
+  const response = await fetch(url, {
+    method,
+    headers: requestHeaders,
+    ...(body && { body }),
+  });
+
+  if (!response.ok) {
+    const errorText = await response.text();
     throw new Error(
-      `Failed to setup GitHub installation token: ${error instanceof Error ? error.message : "Unknown error"}`
+      `GitHub API request failed: ${response.status} ${response.statusText}\n${errorText}`
+    );
+  }
+
+  return response.json() as T;
+};
+
+const checkRepositoryAccess = async (
+  token: string,
+  repoOwner: string,
+  repoName: string
+): Promise<boolean> => {
+  try {
+    const response = await githubRequest<RepositoriesResponse>("/installation/repositories", {
+      headers: { Authorization: `token ${token}` },
+    });
+
+    return response.repositories.some(
+      (repo) => repo.owner.login === repoOwner && repo.name === repoName
+    );
+  } catch {
+    return false;
+  }
+};
+
+const createInstallationToken = async (jwt: string, installationId: number): Promise<string> => {
+  const response = await githubRequest<InstallationTokenResponse>(
+    `/app/installations/${installationId}/access_tokens`,
+    {
+      method: "POST",
+      headers: { Authorization: `Bearer ${jwt}` },
+    }
+  );
+
+  return response.token;
+};
+
+const findInstallationId = async (
+  jwt: string,
+  repoOwner: string,
+  repoName: string
+): Promise<number> => {
+  const installations = await githubRequest<Installation[]>("/app/installations", {
+    headers: { Authorization: `Bearer ${jwt}` },
+  });
+
+  for (const installation of installations) {
+    try {
+      const tempToken = await createInstallationToken(jwt, installation.id);
+      const hasAccess = await checkRepositoryAccess(tempToken, repoOwner, repoName);
+
+      if (hasAccess) {
+        return installation.id;
+      }
+    } catch {}
+  }
+
+  throw new Error(
+    `No installation found with access to ${repoOwner}/${repoName}. ` +
+      "Ensure the GitHub App is installed on the target repository."
+  );
+};
+
+async function acquireTokenViaGitHubApp(): Promise<string> {
+  const repoContext = parseRepoContext();
+
+  const config: GitHubAppConfig = {
+    appId: process.env.GITHUB_APP_ID!,
+    privateKey: process.env.GITHUB_PRIVATE_KEY?.replace(/\\n/g, "\n")!,
+    repoOwner: repoContext.owner,
+    repoName: repoContext.name,
+  };
+
+  const jwt = generateJWT(config.appId, config.privateKey);
+  const installationId = await findInstallationId(jwt, config.repoOwner, config.repoName);
+  const token = await createInstallationToken(jwt, installationId);
+
+  return token;
+}
+
+async function acquireNewToken(): Promise<string> {
+  if (isGitHubActionsEnvironment()) {
+    return await acquireTokenViaOIDC();
+  } else {
+    return await acquireTokenViaGitHubApp();
+  }
+}
+
+/**
+ * Setup GitHub installation token for the action
+ * Returns the token and whether it was acquired (needs revocation)
+ */
+export async function setupGitHubInstallationToken(): Promise<{
+  githubInstallationToken: string;
+  wasAcquired: boolean;
+}> {
+  const existingToken = checkExistingToken();
+  if (existingToken) {
+    core.setSecret(existingToken);
+    log.info("Using provided GitHub installation token");
+    return { githubInstallationToken: existingToken, wasAcquired: false };
+  }
+
+  const acquiredToken = await acquireNewToken();
+  core.setSecret(acquiredToken);
+  process.env.GITHUB_INSTALLATION_TOKEN = acquiredToken;
+
+  return { githubInstallationToken: acquiredToken, wasAcquired: true };
+}
+
+/**
+ * Revoke GitHub installation token
+ */
+export async function revokeInstallationToken(token: string): Promise<void> {
+  const apiUrl = process.env.GITHUB_API_URL || "https://api.github.com";
+
+  try {
+    await fetch(`${apiUrl}/installation/token`, {
+      method: "DELETE",
+      headers: {
+        Accept: "application/vnd.github+json",
+        Authorization: `Bearer ${token}`,
+        "X-GitHub-Api-Version": "2022-11-28",
+      },
+    });
+    log.info("Installation token revoked");
+  } catch (error) {
+    log.warning(
+      `Failed to revoke installation token: ${error instanceof Error ? error.message : String(error)}`
     );
   }
 }
+
+export interface RepoContext {
+  owner: string;
+  name: string;
+}
+
+/**
+ * Parse repository context from GITHUB_REPOSITORY environment variable.
+ */
+export function parseRepoContext(): RepoContext {
+  const githubRepo = process.env.GITHUB_REPOSITORY;
+  if (!githubRepo) {
+    throw new Error("GITHUB_REPOSITORY environment variable is required");
+  }
+
+  const [owner, name] = githubRepo.split("/");
+  if (!owner || !name) {
+    throw new Error(`Invalid GITHUB_REPOSITORY format: ${githubRepo}. Expected 'owner/repo'`);
+  }
+
+  return { owner, name };
+}

utils/index.ts

@@ -1,5 +0,0 @@
-export * from "./files";
-export * from "./github";
-export * from "./setup";
-export * from "./subprocess";
-export * from "./table";

utils/setup.ts

@@ -1,5 +1,7 @@
 import { execSync } from "node:child_process";
 import { existsSync, rmSync } from "node:fs";
+import { log } from "./cli.ts";
+import type { RepoContext } from "./github.ts";
 
 export interface SetupOptions {
   tempDir: string;
@@ -17,35 +19,74 @@ export function setupTestRepo(options: SetupOptions): void {
     forceClean = false,
   } = options;
 
-  // Handle existing temp directory
   if (existsSync(tempDir)) {
     if (forceClean) {
-      console.log("🗑️  Removing existing .temp directory...");
+      log.info("🗑️  Removing existing .temp directory...");
       rmSync(tempDir, { recursive: true, force: true });
 
-      // Clone the repository
-      console.log("📦 Cloning pullfrogai/scratch into .temp...");
+      log.info("📦 Cloning pullfrogai/scratch into .temp...");
       execSync(`git clone ${repoUrl} ${tempDir}`, { stdio: "inherit" });
     } else {
-      console.log("📦 Resetting existing .temp repository...");
+      log.info("📦 Resetting existing .temp repository...");
       execSync("git reset --hard HEAD && git clean -fd", {
         cwd: tempDir,
         stdio: "inherit",
       });
     }
   } else {
-    console.log("📦 Cloning pullfrogai/scratch into .temp...");
+    log.info("📦 Cloning pullfrogai/scratch into .temp...");
     execSync(`git clone ${repoUrl} ${tempDir}`, { stdio: "inherit" });
   }
 }
 
 /**
- * Build the action bundles
+ * Setup git configuration to avoid identity errors
+ * Only runs in GitHub Actions environment to avoid overwriting local git config
  */
-export function buildAction(actionPath: string): void {
-  console.log("🔨 Building fresh bundles with esbuild...");
-  execSync("node esbuild.config.js", {
-    cwd: actionPath,
-    stdio: "inherit",
-  });
+export function setupGitConfig(): void {
+  // Only set up git config in GitHub Actions environment
+  // In local development, use the user's existing git config
+  if (!process.env.GITHUB_ACTIONS) {
+    return;
+  }
+
+  log.info("🔧 Setting up git configuration...");
+  try {
+    execSync('git config user.email "action@pullfrog.ai"', { stdio: "pipe" });
+    execSync('git config user.name "Pullfrog Action"', { stdio: "pipe" });
+    log.debug("setupGitConfig: ✓ Git configuration set successfully");
+  } catch (error) {
+    // If git config fails, log warning but don't fail the action
+    // This can happen if we're not in a git repo or git isn't available
+    log.warning(
+      `Failed to set git config: ${error instanceof Error ? error.message : String(error)}`
+    );
+  }
+}
+
+/**
+ * Setup git authentication using GitHub token
+ * Only runs in GitHub Actions environment to avoid breaking local git remotes
+ */
+export function setupGitAuth(githubToken: string, repoContext: RepoContext): void {
+  // Only set up git auth in GitHub Actions environment
+  // In local testing, this would overwrite the real git remote with fake credentials
+  if (!process.env.GITHUB_ACTIONS) {
+    return;
+  }
+
+  log.info("🔐 Setting up git authentication...");
+
+  // Remove existing git auth headers that actions/checkout might have set
+  try {
+    execSync("git config --unset-all http.https://github.com/.extraheader", { stdio: "inherit" });
+    log.info("✓ Removed existing authentication headers");
+  } catch {
+    log.info("No existing authentication headers to remove");
+  }
+
+  // Update remote URL to embed the token
+  const remoteUrl = `https://x-access-token:${githubToken}@github.com/${repoContext.owner}/${repoContext.name}.git`;
+  execSync(`git remote set-url origin "${remoteUrl}"`, { stdio: "inherit" });
+  log.info("✓ Updated remote URL with authentication token");
 }

utils/subprocess.ts

@@ -6,6 +6,7 @@ export interface SpawnOptions {
   env?: Record<string, string>;
   input?: string;
   timeout?: number;
+  cwd?: string;
   onStdout?: (chunk: string) => void;
   onStderr?: (chunk: string) => void;
 }
@@ -21,20 +22,19 @@ export interface SpawnResult {
  * Spawn a subprocess with streaming callbacks and buffered results
  */
 export async function spawn(options: SpawnOptions): Promise<SpawnResult> {
-  const { cmd, args, env, input, timeout, onStdout, onStderr } = options;
+  const { cmd, args, env, input, timeout, cwd, onStdout, onStderr } = options;
 
   const startTime = Date.now();
   let stdoutBuffer = "";
   let stderrBuffer = "";
 
   return new Promise((resolve, reject) => {
-    // Spawn the child process
     const child = nodeSpawn(cmd, args, {
       env: env ? { ...process.env, ...env } : process.env,
       stdio: ["pipe", "pipe", "pipe"],
+      cwd: cwd || process.cwd(),
     });
 
-    // Set up timeout if specified
     let timeoutId: NodeJS.Timeout | undefined;
     let isTimedOut = false;
 
@@ -43,7 +43,6 @@ export async function spawn(options: SpawnOptions): Promise<SpawnResult> {
         isTimedOut = true;
         child.kill("SIGTERM");
 
-        // If SIGTERM doesn't work, use SIGKILL after 5 seconds
         setTimeout(() => {
           if (!child.killed) {
             child.kill("SIGKILL");
@@ -52,7 +51,6 @@ export async function spawn(options: SpawnOptions): Promise<SpawnResult> {
       }, timeout);
     }
 
-    // Handle stdout streaming
     if (child.stdout) {
       child.stdout.on("data", (data: Buffer) => {
         const chunk = data.toString();
@@ -61,7 +59,6 @@ export async function spawn(options: SpawnOptions): Promise<SpawnResult> {
       });
     }
 
-    // Handle stderr streaming
     if (child.stderr) {
       child.stderr.on("data", (data: Buffer) => {
         const chunk = data.toString();
@@ -70,7 +67,6 @@ export async function spawn(options: SpawnOptions): Promise<SpawnResult> {
       });
     }
 
-    // Handle process completion
     child.on("close", (exitCode) => {
       const durationMs = Date.now() - startTime;
 
@@ -91,15 +87,13 @@ export async function spawn(options: SpawnOptions): Promise<SpawnResult> {
       });
     });
 
-    // Handle process errors
-    child.on("error", (error) => {
+    child.on("error", (_error) => {
       const durationMs = Date.now() - startTime;
 
       if (timeoutId) {
         clearTimeout(timeoutId);
       }
 
-      // Still return buffered output even on error
       resolve({
         stdout: stdoutBuffer,
         stderr: stderrBuffer,
@@ -108,7 +102,6 @@ export async function spawn(options: SpawnOptions): Promise<SpawnResult> {
       });
     });
 
-    // Send input if provided
     if (input && child.stdin) {
       child.stdin.write(input);
       child.stdin.end();

utils/table.ts

@@ -1,172 +0,0 @@
-import { table } from "table";
-
-/**
- * Print a formatted table with consistent styling
- * @param rows - Array of string arrays representing table rows
- * @param options - Optional table configuration
- */
-
-export function tableString(
-  rows: string[][],
-  options?: {
-    title?: string;
-    indent?: string;
-    drawHorizontalLine?: (lineIndex: number, rowCount: number) => boolean;
-  }
-): string {
-  const {
-    title,
-    indent = "",
-    drawHorizontalLine = (lineIndex: number, rowCount: number) => {
-      return lineIndex === 0 || (options?.title && lineIndex === 1) || lineIndex === rowCount;
-    },
-  } = options || {};
-
-  if (options?.title) {
-    rows.unshift([options.title]);
-  }
-
-  const tableOutput = table(rows, {
-    drawHorizontalLine,
-    border: {
-      topBody: `─`,
-      topJoin: `┬`,
-      topLeft: `┌`,
-      topRight: `┐`,
-
-      bottomBody: `─`,
-      bottomJoin: `┴`,
-      bottomLeft: `└`,
-      bottomRight: `┘`,
-
-      bodyLeft: `│`,
-      bodyRight: `│`,
-      bodyJoin: `│`,
-
-      joinBody: `─`,
-      joinLeft: `├`,
-      joinRight: `┤`,
-      joinJoin: `┼`,
-    },
-  });
-
-  const indentedOutput = tableOutput.split("\n").join(`\n${indent}`).trim();
-
-  return `${indent}${indentedOutput}`;
-}
-
-/**
- * Print a multi-line string in a formatted box with text wrapping
- * @param text - The text to display
- * @param options - Optional configuration for the box
- */
-export function boxString(
-  text: string,
-  options?: {
-    title?: string;
-    maxWidth?: number;
-    indent?: string;
-    padding?: number;
-  }
-): string {
-  const { title, maxWidth = 80, indent = "", padding = 1 } = options || {};
-
-  // Clean up the text and split into lines
-  const lines = text.trim().split("\n");
-
-  // Word wrap each line to fit within maxWidth
-  const wrappedLines: string[] = [];
-  for (const line of lines) {
-    if (line.length <= maxWidth - padding * 2) {
-      wrappedLines.push(line);
-    } else {
-      // Word wrap the line
-      const words = line.split(" ");
-      let currentLine = "";
-
-      for (const word of words) {
-        const testLine = currentLine ? `${currentLine} ${word}` : word;
-        if (testLine.length <= maxWidth - padding * 2) {
-          currentLine = testLine;
-        } else {
-          if (currentLine) {
-            wrappedLines.push(currentLine);
-            currentLine = word;
-          } else {
-            // Word is too long, break it
-            wrappedLines.push(word.substring(0, maxWidth - padding * 2));
-            currentLine = word.substring(maxWidth - padding * 2);
-          }
-        }
-      }
-
-      if (currentLine) {
-        wrappedLines.push(currentLine);
-      }
-    }
-  }
-
-  // Find the maximum line length for box sizing
-  const maxLineLength = Math.max(...wrappedLines.map((line) => line.length));
-  const boxWidth = maxLineLength + padding * 2;
-
-  // Create the box
-  const topBorder = "┌" + "─".repeat(boxWidth) + "┐";
-  const bottomBorder = "└" + "─".repeat(boxWidth) + "┘";
-  const sideBorder = "│";
-
-  let result = "";
-
-  // Add title if provided
-  if (title) {
-    const titleLine = ` ${title} `;
-    const titlePadding = Math.max(0, boxWidth - titleLine.length);
-    result += `${indent}┌${titleLine}${"─".repeat(titlePadding)}┐\n`;
-  }
-
-  // Add top border (or title border)
-  if (!title) {
-    result += `${indent}${topBorder}\n`;
-  }
-
-  // Add content lines
-  for (const line of wrappedLines) {
-    const paddedLine = line.padEnd(maxLineLength);
-    result += `${indent}${sideBorder}${" ".repeat(padding)}${paddedLine}${" ".repeat(padding)}${sideBorder}\n`;
-  }
-
-  // Add bottom border
-  result += `${indent}${bottomBorder}`;
-
-  return result;
-}
-
-// /**
-//  * Create a simple two-column table for displaying key-value pairs
-//  * @param data - Array of [key, value] pairs
-//  * @param title - Optional table title
-//  * @param indent - Optional indentation string
-//  */
-// export function printKeyValueTable(
-//   data: [string, string][],
-//   title?: string,
-//   indent?: string
-// ): void {
-//   const rows: string[][] = [["Key", "Value"], ...data];
-//   const options: Parameters<typeof printTable>[1] = {};
-//   if (title !== undefined) options.title = title;
-//   if (indent !== undefined) options.indent = indent;
-//   printTable(rows, options);
-// }
-
-// /**
-//  * Create a path resolution table (specific use case)
-//  * @param pathData - Array of [location, resolvedPath] pairs
-//  * @param indent - Optional indentation string
-//  */
-// export function printPathTable(pathData: [string, string][], indent?: string): void {
-//   const rows: string[][] = [["Location", "Resolved path"], ...pathData];
-//   const options: Parameters<typeof printTable>[1] = {};
-//   if (indent !== undefined) options.indent = indent;
-//   printTable(rows, options);
-// }