update

.agents/skills/ios-simulator-skill/scripts/xcode/__init__.py

@@ -0,0 +1,13 @@
+"""
+Xcode build automation module.
+
+Provides structured, modular access to xcodebuild and xcresult functionality.
+"""
+
+from .builder import BuildRunner
+from .cache import XCResultCache
+from .config import Config
+from .reporter import OutputFormatter
+from .xcresult import XCResultParser
+
+__all__ = ["BuildRunner", "Config", "OutputFormatter", "XCResultCache", "XCResultParser"]

.agents/skills/ios-simulator-skill/scripts/xcode/builder.py

@@ -0,0 +1,381 @@
+"""
+Xcode build execution.
+
+Handles xcodebuild command construction and execution with xcresult generation.
+"""
+
+import re
+import subprocess
+import sys
+from pathlib import Path
+
+from .cache import XCResultCache
+from .config import Config
+
+
+class BuildRunner:
+    """
+    Execute xcodebuild commands with xcresult bundle generation.
+
+    Handles scheme auto-detection, command construction, and build/test execution.
+    """
+
+    def __init__(
+        self,
+        project_path: str | None = None,
+        workspace_path: str | None = None,
+        scheme: str | None = None,
+        configuration: str = "Debug",
+        simulator: str | None = None,
+        cache: XCResultCache | None = None,
+    ):
+        """
+        Initialize build runner.
+
+        Args:
+            project_path: Path to .xcodeproj
+            workspace_path: Path to .xcworkspace
+            scheme: Build scheme (auto-detected if not provided)
+            configuration: Build configuration (Debug/Release)
+            simulator: Simulator name
+            cache: XCResult cache (creates default if not provided)
+        """
+        self.project_path = project_path
+        self.workspace_path = workspace_path
+        self.scheme = scheme
+        self.configuration = configuration
+        self.simulator = simulator
+        self.cache = cache or XCResultCache()
+
+    def auto_detect_scheme(self) -> str | None:
+        """
+        Auto-detect build scheme from project/workspace.
+
+        Returns:
+            Detected scheme name or None
+        """
+        cmd = ["xcodebuild", "-list"]
+
+        if self.workspace_path:
+            cmd.extend(["-workspace", self.workspace_path])
+        elif self.project_path:
+            cmd.extend(["-project", self.project_path])
+        else:
+            return None
+
+        try:
+            result = subprocess.run(cmd, capture_output=True, text=True, check=True)
+
+            # Parse schemes from output
+            in_schemes_section = False
+            for line in result.stdout.split("\n"):
+                line = line.strip()
+
+                if "Schemes:" in line:
+                    in_schemes_section = True
+                    continue
+
+                if in_schemes_section and line and not line.startswith("Build"):
+                    # First scheme in list
+                    return line
+
+        except subprocess.CalledProcessError as e:
+            print(f"Error auto-detecting scheme: {e}", file=sys.stderr)
+
+        return None
+
+    def get_simulator_destination(self) -> str:
+        """
+        Get xcodebuild destination string.
+
+        Uses config preferences with fallback to auto-detection.
+
+        Priority:
+            1. --simulator CLI flag (self.simulator)
+            2. Config preferred_simulator
+            3. Config last_used_simulator
+            4. Auto-detect first iPhone
+            5. Generic iOS Simulator
+
+        Returns:
+            Destination string for -destination flag
+        """
+        # Priority 1: CLI flag
+        if self.simulator:
+            return f"platform=iOS Simulator,name={self.simulator}"
+
+        # Priority 2-3: Config preferences
+        try:
+            # Determine project directory from project/workspace path
+            project_dir = None
+            if self.project_path:
+                project_dir = Path(self.project_path).parent
+            elif self.workspace_path:
+                project_dir = Path(self.workspace_path).parent
+
+            config = Config.load(project_dir=project_dir)
+            preferred = config.get_preferred_simulator()
+
+            if preferred:
+                # Check if preferred simulator exists
+                if self._simulator_exists(preferred):
+                    return f"platform=iOS Simulator,name={preferred}"
+                print(f"Warning: Preferred simulator '{preferred}' not available", file=sys.stderr)
+                if config.should_fallback_to_any_iphone():
+                    print("Falling back to auto-detection...", file=sys.stderr)
+                else:
+                    # Strict mode: don't fallback
+                    return f"platform=iOS Simulator,name={preferred}"
+
+        except Exception as e:
+            print(f"Warning: Could not load config: {e}", file=sys.stderr)
+
+        # Priority 4-5: Auto-detect
+        return self._auto_detect_simulator()
+
+    def _simulator_exists(self, name: str) -> bool:
+        """
+        Check if simulator with given name exists and is available.
+
+        Args:
+            name: Simulator name (e.g., "iPhone 16 Pro")
+
+        Returns:
+            True if simulator exists and is available
+        """
+        try:
+            result = subprocess.run(
+                ["xcrun", "simctl", "list", "devices", "available", "iOS"],
+                capture_output=True,
+                text=True,
+                check=True,
+            )
+
+            # Check if simulator name appears in available devices
+            return any(name in line and "(" in line for line in result.stdout.split("\n"))
+
+        except subprocess.CalledProcessError:
+            return False
+
+    def _extract_simulator_name_from_destination(self, destination: str) -> str | None:
+        """
+        Extract simulator name from destination string.
+
+        Args:
+            destination: Destination string (e.g., "platform=iOS Simulator,name=iPhone 16 Pro")
+
+        Returns:
+            Simulator name or None
+        """
+        # Pattern: name=<simulator name>
+        match = re.search(r"name=([^,]+)", destination)
+        if match:
+            return match.group(1).strip()
+        return None
+
+    def _auto_detect_simulator(self) -> str:
+        """
+        Auto-detect best available iOS simulator.
+
+        Returns:
+            Destination string for -destination flag
+        """
+        try:
+            result = subprocess.run(
+                ["xcrun", "simctl", "list", "devices", "available", "iOS"],
+                capture_output=True,
+                text=True,
+                check=True,
+            )
+
+            # Parse available simulators, prefer latest iPhone
+            # Looking for lines like: "iPhone 16 Pro (12345678-1234-1234-1234-123456789012) (Shutdown)"
+            for line in result.stdout.split("\n"):
+                if "iPhone" in line and "(" in line:
+                    # Extract device name
+                    name = line.split("(")[0].strip()
+                    if name:
+                        return f"platform=iOS Simulator,name={name}"
+
+            # Fallback to generic iOS Simulator if no iPhone found
+            return "generic/platform=iOS Simulator"
+
+        except subprocess.CalledProcessError as e:
+            print(f"Warning: Could not auto-detect simulator: {e}", file=sys.stderr)
+            return "generic/platform=iOS Simulator"
+
+    def build(self, clean: bool = False) -> tuple[bool, str, str]:
+        """
+        Build the project.
+
+        Args:
+            clean: Perform clean build
+
+        Returns:
+            Tuple of (success: bool, xcresult_id: str, stderr: str)
+        """
+        # Auto-detect scheme if needed
+        if not self.scheme:
+            self.scheme = self.auto_detect_scheme()
+            if not self.scheme:
+                print("Error: Could not auto-detect scheme. Use --scheme", file=sys.stderr)
+                return (False, "", "")
+
+        # Generate xcresult ID and path
+        xcresult_id = self.cache.generate_id()
+        xcresult_path = self.cache.get_path(xcresult_id)
+
+        # Build command
+        cmd = ["xcodebuild", "-quiet"]  # Suppress verbose output
+
+        if clean:
+            cmd.append("clean")
+
+        cmd.append("build")
+
+        if self.workspace_path:
+            cmd.extend(["-workspace", self.workspace_path])
+        elif self.project_path:
+            cmd.extend(["-project", self.project_path])
+        else:
+            print("Error: No project or workspace specified", file=sys.stderr)
+            return (False, "", "")
+
+        cmd.extend(
+            [
+                "-scheme",
+                self.scheme,
+                "-configuration",
+                self.configuration,
+                "-destination",
+                self.get_simulator_destination(),
+                "-resultBundlePath",
+                str(xcresult_path),
+            ]
+        )
+
+        # Execute build
+        try:
+            result = subprocess.run(
+                cmd, capture_output=True, text=True, check=False  # Don't raise on non-zero exit
+            )
+
+            success = result.returncode == 0
+
+            # xcresult bundle should be created even on failure
+            if not xcresult_path.exists():
+                print("Warning: xcresult bundle was not created", file=sys.stderr)
+                return (success, "", result.stderr)
+
+            # Auto-update config with last used simulator (on success only)
+            if success:
+                try:
+                    # Determine project directory from project/workspace path
+                    project_dir = None
+                    if self.project_path:
+                        project_dir = Path(self.project_path).parent
+                    elif self.workspace_path:
+                        project_dir = Path(self.workspace_path).parent
+
+                    config = Config.load(project_dir=project_dir)
+                    destination = self.get_simulator_destination()
+                    simulator_name = self._extract_simulator_name_from_destination(destination)
+
+                    if simulator_name:
+                        config.update_last_used_simulator(simulator_name)
+                        config.save()
+
+                except Exception as e:
+                    # Don't fail build if config update fails
+                    print(f"Warning: Could not update config: {e}", file=sys.stderr)
+
+            return (success, xcresult_id, result.stderr)
+
+        except Exception as e:
+            print(f"Error executing build: {e}", file=sys.stderr)
+            return (False, "", str(e))
+
+    def test(self, test_suite: str | None = None) -> tuple[bool, str, str]:
+        """
+        Run tests.
+
+        Args:
+            test_suite: Specific test suite to run
+
+        Returns:
+            Tuple of (success: bool, xcresult_id: str, stderr: str)
+        """
+        # Auto-detect scheme if needed
+        if not self.scheme:
+            self.scheme = self.auto_detect_scheme()
+            if not self.scheme:
+                print("Error: Could not auto-detect scheme. Use --scheme", file=sys.stderr)
+                return (False, "", "")
+
+        # Generate xcresult ID and path
+        xcresult_id = self.cache.generate_id()
+        xcresult_path = self.cache.get_path(xcresult_id)
+
+        # Build command
+        cmd = ["xcodebuild", "-quiet", "test"]
+
+        if self.workspace_path:
+            cmd.extend(["-workspace", self.workspace_path])
+        elif self.project_path:
+            cmd.extend(["-project", self.project_path])
+        else:
+            print("Error: No project or workspace specified", file=sys.stderr)
+            return (False, "", "")
+
+        cmd.extend(
+            [
+                "-scheme",
+                self.scheme,
+                "-destination",
+                self.get_simulator_destination(),
+                "-resultBundlePath",
+                str(xcresult_path),
+            ]
+        )
+
+        if test_suite:
+            cmd.extend(["-only-testing", test_suite])
+
+        # Execute tests
+        try:
+            result = subprocess.run(cmd, capture_output=True, text=True, check=False)
+
+            success = result.returncode == 0
+
+            # xcresult bundle should be created even on failure
+            if not xcresult_path.exists():
+                print("Warning: xcresult bundle was not created", file=sys.stderr)
+                return (success, "", result.stderr)
+
+            # Auto-update config with last used simulator (on success only)
+            if success:
+                try:
+                    # Determine project directory from project/workspace path
+                    project_dir = None
+                    if self.project_path:
+                        project_dir = Path(self.project_path).parent
+                    elif self.workspace_path:
+                        project_dir = Path(self.workspace_path).parent
+
+                    config = Config.load(project_dir=project_dir)
+                    destination = self.get_simulator_destination()
+                    simulator_name = self._extract_simulator_name_from_destination(destination)
+
+                    if simulator_name:
+                        config.update_last_used_simulator(simulator_name)
+                        config.save()
+
+                except Exception as e:
+                    # Don't fail test if config update fails
+                    print(f"Warning: Could not update config: {e}", file=sys.stderr)
+
+            return (success, xcresult_id, result.stderr)
+
+        except Exception as e:
+            print(f"Error executing tests: {e}", file=sys.stderr)
+            return (False, "", str(e))

.agents/skills/ios-simulator-skill/scripts/xcode/cache.py

@@ -0,0 +1,204 @@
+"""
+XCResult cache management.
+
+Handles storage, retrieval, and lifecycle of xcresult bundles for progressive disclosure.
+"""
+
+import shutil
+from datetime import datetime
+from pathlib import Path
+
+
+class XCResultCache:
+    """
+    Manage xcresult bundle cache for progressive disclosure.
+
+    Stores xcresult bundles with timestamp-based IDs and provides
+    retrieval and cleanup operations.
+    """
+
+    # Default cache directory
+    DEFAULT_CACHE_DIR = Path.home() / ".ios-simulator-skill" / "xcresults"
+
+    def __init__(self, cache_dir: Path | None = None):
+        """
+        Initialize cache manager.
+
+        Args:
+            cache_dir: Custom cache directory (uses default if not specified)
+        """
+        self.cache_dir = cache_dir or self.DEFAULT_CACHE_DIR
+        self.cache_dir.mkdir(parents=True, exist_ok=True)
+
+    def generate_id(self, prefix: str = "xcresult") -> str:
+        """
+        Generate timestamped xcresult ID.
+
+        Args:
+            prefix: ID prefix (default: "xcresult")
+
+        Returns:
+            ID string like "xcresult-20251018-143052"
+        """
+        timestamp = datetime.now().strftime("%Y%m%d-%H%M%S")
+        return f"{prefix}-{timestamp}"
+
+    def get_path(self, xcresult_id: str) -> Path:
+        """
+        Get full path for xcresult ID.
+
+        Args:
+            xcresult_id: XCResult ID
+
+        Returns:
+            Path to xcresult bundle
+        """
+        # Handle both with and without .xcresult extension
+        if xcresult_id.endswith(".xcresult"):
+            return self.cache_dir / xcresult_id
+        return self.cache_dir / f"{xcresult_id}.xcresult"
+
+    def exists(self, xcresult_id: str) -> bool:
+        """
+        Check if xcresult bundle exists.
+
+        Args:
+            xcresult_id: XCResult ID
+
+        Returns:
+            True if bundle exists
+        """
+        return self.get_path(xcresult_id).exists()
+
+    def save(self, source_path: Path, xcresult_id: str | None = None) -> str:
+        """
+        Save xcresult bundle to cache.
+
+        Args:
+            source_path: Source xcresult bundle path
+            xcresult_id: Optional custom ID (generates if not provided)
+
+        Returns:
+            xcresult ID
+        """
+        if not source_path.exists():
+            raise FileNotFoundError(f"Source xcresult not found: {source_path}")
+
+        # Generate ID if not provided
+        if not xcresult_id:
+            xcresult_id = self.generate_id()
+
+        # Get destination path
+        dest_path = self.get_path(xcresult_id)
+
+        # Copy xcresult bundle (it's a directory)
+        if dest_path.exists():
+            shutil.rmtree(dest_path)
+
+        shutil.copytree(source_path, dest_path)
+
+        return xcresult_id
+
+    def list(self, limit: int = 10) -> list[dict]:
+        """
+        List recent xcresult bundles.
+
+        Args:
+            limit: Maximum number to return
+
+        Returns:
+            List of xcresult metadata dicts
+        """
+        if not self.cache_dir.exists():
+            return []
+
+        results = []
+        for path in sorted(
+            self.cache_dir.glob("*.xcresult"), key=lambda p: p.stat().st_mtime, reverse=True
+        )[:limit]:
+            # Calculate bundle size
+            size_bytes = sum(f.stat().st_size for f in path.rglob("*") if f.is_file())
+
+            results.append(
+                {
+                    "id": path.stem,
+                    "path": str(path),
+                    "created": datetime.fromtimestamp(path.stat().st_mtime).isoformat(),
+                    "size_mb": round(size_bytes / (1024 * 1024), 2),
+                }
+            )
+
+        return results
+
+    def cleanup(self, keep_recent: int = 20) -> int:
+        """
+        Clean up old xcresult bundles.
+
+        Args:
+            keep_recent: Number of recent bundles to keep
+
+        Returns:
+            Number of bundles removed
+        """
+        if not self.cache_dir.exists():
+            return 0
+
+        # Get all bundles sorted by modification time
+        all_bundles = sorted(
+            self.cache_dir.glob("*.xcresult"), key=lambda p: p.stat().st_mtime, reverse=True
+        )
+
+        # Remove old bundles
+        removed = 0
+        for bundle_path in all_bundles[keep_recent:]:
+            shutil.rmtree(bundle_path)
+            removed += 1
+
+        return removed
+
+    def get_size_mb(self, xcresult_id: str) -> float:
+        """
+        Get size of xcresult bundle in MB.
+
+        Args:
+            xcresult_id: XCResult ID
+
+        Returns:
+            Size in MB
+        """
+        path = self.get_path(xcresult_id)
+        if not path.exists():
+            return 0.0
+
+        size_bytes = sum(f.stat().st_size for f in path.rglob("*") if f.is_file())
+        return round(size_bytes / (1024 * 1024), 2)
+
+    def save_stderr(self, xcresult_id: str, stderr: str) -> None:
+        """
+        Save stderr output alongside xcresult bundle.
+
+        Args:
+            xcresult_id: XCResult ID
+            stderr: stderr output from xcodebuild
+        """
+        if not stderr:
+            return
+
+        stderr_path = self.cache_dir / f"{xcresult_id}.stderr"
+        stderr_path.write_text(stderr, encoding="utf-8")
+
+    def get_stderr(self, xcresult_id: str) -> str:
+        """
+        Retrieve cached stderr output.
+
+        Args:
+            xcresult_id: XCResult ID
+
+        Returns:
+            stderr content or empty string if not found
+        """
+        stderr_path = self.cache_dir / f"{xcresult_id}.stderr"
+        if not stderr_path.exists():
+            return ""
+
+        return stderr_path.read_text(encoding="utf-8")

.agents/skills/ios-simulator-skill/scripts/xcode/config.py

@@ -0,0 +1,178 @@
+"""
+Configuration management for iOS Simulator Skill.
+
+Handles loading, validation, and auto-updating of project-local config files.
+"""
+
+import json
+import sys
+from datetime import datetime
+from pathlib import Path
+from typing import Any
+
+
+class Config:
+    """
+    Project-local configuration with auto-learning.
+
+    Config file location: .claude/skills/<skill-directory-name>/config.json
+
+    The skill directory name is auto-detected from the installation location,
+    so configs work regardless of what users name the skill directory.
+
+    Auto-updates last_used_simulator after successful builds.
+    """
+
+    DEFAULT_CONFIG = {
+        "device": {
+            "preferred_simulator": None,
+            "preferred_os_version": None,
+            "fallback_to_any_iphone": True,
+            "last_used_simulator": None,
+            "last_used_at": None,
+        }
+    }
+
+    def __init__(self, data: dict[str, Any], config_path: Path):
+        """
+        Initialize config.
+
+        Args:
+            data: Config data dict
+            config_path: Path to config file
+        """
+        self.data = data
+        self.config_path = config_path
+
+    @staticmethod
+    def load(project_dir: Path | None = None) -> "Config":
+        """
+        Load config from project directory.
+
+        Args:
+            project_dir: Project root (defaults to cwd)
+
+        Returns:
+            Config instance (creates default if not found)
+
+        Note:
+            The skill directory name is auto-detected from the installation location,
+            so configs work regardless of what users name the skill directory.
+        """
+        if project_dir is None:
+            project_dir = Path.cwd()
+
+        # Auto-detect skill directory name from actual installation location
+        # This file is at: skill/scripts/xcode/config.py
+        # Navigate up to skill/ directory and use its name
+        skill_root = Path(__file__).parent.parent.parent  # xcode/ -> scripts/ -> skill/
+        skill_name = skill_root.name
+
+        config_path = project_dir / ".claude" / "skills" / skill_name / "config.json"
+
+        # Load existing config
+        if config_path.exists():
+            try:
+                with open(config_path) as f:
+                    data = json.load(f)
+
+                # Merge with defaults (in case new fields added)
+                merged = Config._merge_with_defaults(data)
+                return Config(merged, config_path)
+
+            except json.JSONDecodeError as e:
+                print(f"Warning: Invalid JSON in {config_path}: {e}", file=sys.stderr)
+                print("Using default config", file=sys.stderr)
+                return Config(Config.DEFAULT_CONFIG.copy(), config_path)
+            except Exception as e:
+                print(f"Warning: Could not load config: {e}", file=sys.stderr)
+                return Config(Config.DEFAULT_CONFIG.copy(), config_path)
+
+        # Return default config (will be created on first save)
+        return Config(Config.DEFAULT_CONFIG.copy(), config_path)
+
+    @staticmethod
+    def _merge_with_defaults(data: dict[str, Any]) -> dict[str, Any]:
+        """
+        Merge user config with defaults.
+
+        Args:
+            data: User config data
+
+        Returns:
+            Merged config with all default fields
+        """
+        merged = Config.DEFAULT_CONFIG.copy()
+
+        # Deep merge device section
+        if "device" in data:
+            merged["device"].update(data["device"])
+
+        return merged
+
+    def save(self) -> None:
+        """
+        Save config to file atomically.
+
+        Uses temp file + rename for atomic writes.
+        Creates parent directories if needed.
+        """
+        try:
+            # Create parent directories
+            self.config_path.parent.mkdir(parents=True, exist_ok=True)
+
+            # Atomic write: temp file + rename
+            temp_path = self.config_path.with_suffix(".tmp")
+
+            with open(temp_path, "w") as f:
+                json.dump(self.data, f, indent=2)
+                f.write("\n")  # Trailing newline
+
+            # Atomic rename
+            temp_path.replace(self.config_path)
+
+        except Exception as e:
+            print(f"Warning: Could not save config: {e}", file=sys.stderr)
+
+    def update_last_used_simulator(self, name: str) -> None:
+        """
+        Update last used simulator and timestamp.
+
+        Args:
+            name: Simulator name (e.g., "iPhone 16 Pro")
+        """
+        self.data["device"]["last_used_simulator"] = name
+        self.data["device"]["last_used_at"] = datetime.utcnow().isoformat() + "Z"
+
+    def get_preferred_simulator(self) -> str | None:
+        """
+        Get preferred simulator.
+
+        Returns:
+            Simulator name or None
+
+        Priority:
+            1. preferred_simulator (manual preference)
+            2. last_used_simulator (auto-learned)
+            3. None (use auto-detection)
+        """
+        device = self.data.get("device", {})
+
+        # Manual preference takes priority
+        if device.get("preferred_simulator"):
+            return device["preferred_simulator"]
+
+        # Auto-learned preference
+        if device.get("last_used_simulator"):
+            return device["last_used_simulator"]
+
+        return None
+
+    def should_fallback_to_any_iphone(self) -> bool:
+        """
+        Check if fallback to any iPhone is enabled.
+
+        Returns:
+            True if should fallback, False otherwise
+        """
+        return self.data.get("device", {}).get("fallback_to_any_iphone", True)

.agents/skills/ios-simulator-skill/scripts/xcode/reporter.py

@@ -0,0 +1,291 @@
+"""
+Build/test output formatting.
+
+Provides multiple output formats with progressive disclosure support.
+"""
+
+import json
+
+
+class OutputFormatter:
+    """
+    Format build/test results for display.
+
+    Supports ultra-minimal default output, verbose mode, and JSON output.
+    """
+
+    @staticmethod
+    def format_minimal(
+        status: str,
+        error_count: int,
+        warning_count: int,
+        xcresult_id: str,
+        test_info: dict | None = None,
+        hints: list[str] | None = None,
+    ) -> str:
+        """
+        Format ultra-minimal output (5-10 tokens).
+
+        Args:
+            status: Build status (SUCCESS/FAILED)
+            error_count: Number of errors
+            warning_count: Number of warnings
+            xcresult_id: XCResult bundle ID
+            test_info: Optional test results dict
+            hints: Optional list of actionable hints
+
+        Returns:
+            Minimal formatted string
+
+        Example:
+            Build: SUCCESS (0 errors, 3 warnings) [xcresult-20251018-143052]
+            Tests: PASS (12/12 passed, 4.2s) [xcresult-20251018-143052]
+        """
+        lines = []
+
+        if test_info:
+            # Test mode
+            total = test_info.get("total", 0)
+            passed = test_info.get("passed", 0)
+            failed = test_info.get("failed", 0)
+            duration = test_info.get("duration", 0.0)
+
+            test_status = "PASS" if failed == 0 else "FAIL"
+            lines.append(
+                f"Tests: {test_status} ({passed}/{total} passed, {duration:.1f}s) [{xcresult_id}]"
+            )
+        else:
+            # Build mode
+            lines.append(
+                f"Build: {status} ({error_count} errors, {warning_count} warnings) [{xcresult_id}]"
+            )
+
+        # Add hints if provided and build failed
+        if hints and status == "FAILED":
+            lines.append("")
+            lines.extend(hints)
+
+        return "\n".join(lines)
+
+    @staticmethod
+    def format_errors(errors: list[dict], limit: int = 10) -> str:
+        """
+        Format error details.
+
+        Args:
+            errors: List of error dicts
+            limit: Maximum errors to show
+
+        Returns:
+            Formatted error list
+        """
+        if not errors:
+            return "No errors found."
+
+        lines = [f"Errors ({len(errors)}):"]
+        lines.append("")
+
+        for i, error in enumerate(errors[:limit], 1):
+            message = error.get("message", "Unknown error")
+            location = error.get("location", {})
+
+            # Format location
+            loc_parts = []
+            if location.get("file"):
+                file_path = location["file"].replace("file://", "")
+                loc_parts.append(file_path)
+            if location.get("line"):
+                loc_parts.append(f"line {location['line']}")
+
+            location_str = ":".join(loc_parts) if loc_parts else "unknown location"
+
+            lines.append(f"{i}. {message}")
+            lines.append(f"   Location: {location_str}")
+            lines.append("")
+
+        if len(errors) > limit:
+            lines.append(f"... and {len(errors) - limit} more errors")
+
+        return "\n".join(lines)
+
+    @staticmethod
+    def format_warnings(warnings: list[dict], limit: int = 10) -> str:
+        """
+        Format warning details.
+
+        Args:
+            warnings: List of warning dicts
+            limit: Maximum warnings to show
+
+        Returns:
+            Formatted warning list
+        """
+        if not warnings:
+            return "No warnings found."
+
+        lines = [f"Warnings ({len(warnings)}):"]
+        lines.append("")
+
+        for i, warning in enumerate(warnings[:limit], 1):
+            message = warning.get("message", "Unknown warning")
+            location = warning.get("location", {})
+
+            # Format location
+            loc_parts = []
+            if location.get("file"):
+                file_path = location["file"].replace("file://", "")
+                loc_parts.append(file_path)
+            if location.get("line"):
+                loc_parts.append(f"line {location['line']}")
+
+            location_str = ":".join(loc_parts) if loc_parts else "unknown location"
+
+            lines.append(f"{i}. {message}")
+            lines.append(f"   Location: {location_str}")
+            lines.append("")
+
+        if len(warnings) > limit:
+            lines.append(f"... and {len(warnings) - limit} more warnings")
+
+        return "\n".join(lines)
+
+    @staticmethod
+    def format_log(log: str, lines: int = 50) -> str:
+        """
+        Format build log (show last N lines).
+
+        Args:
+            log: Full build log
+            lines: Number of lines to show
+
+        Returns:
+            Formatted log excerpt
+        """
+        if not log:
+            return "No build log available."
+
+        log_lines = log.strip().split("\n")
+
+        if len(log_lines) <= lines:
+            return log
+
+        # Show last N lines
+        excerpt = log_lines[-lines:]
+        return f"... (showing last {lines} lines of {len(log_lines)})\n\n" + "\n".join(excerpt)
+
+    @staticmethod
+    def format_json(data: dict) -> str:
+        """
+        Format data as JSON.
+
+        Args:
+            data: Data to format
+
+        Returns:
+            Pretty-printed JSON string
+        """
+        return json.dumps(data, indent=2)
+
+    @staticmethod
+    def generate_hints(errors: list[dict]) -> list[str]:
+        """
+        Generate actionable hints based on error types.
+
+        Args:
+            errors: List of error dicts
+
+        Returns:
+            List of hint strings
+        """
+        hints = []
+        error_types: set[str] = set()
+
+        # Collect error types
+        for error in errors:
+            error_type = error.get("type", "unknown")
+            error_types.add(error_type)
+
+        # Generate hints based on error types
+        if "provisioning" in error_types:
+            hints.append("Provisioning profile issue detected:")
+            hints.append("  • Ensure you have a valid provisioning profile for iOS Simulator")
+            hints.append(
+                '  • For simulator builds, use CODE_SIGN_IDENTITY="" CODE_SIGNING_REQUIRED=NO'
+            )
+            hints.append("  • Or specify simulator explicitly: --simulator 'iPhone 16 Pro'")
+
+        if "signing" in error_types:
+            hints.append("Code signing issue detected:")
+            hints.append("  • For simulator builds, code signing is not required")
+            hints.append("  • Ensure build settings target iOS Simulator, not physical device")
+            hints.append("  • Check destination: platform=iOS Simulator,name=<device>")
+
+        if not error_types or "build" in error_types:
+            # Generic hints when error type is unknown
+            if any("destination" in error.get("message", "").lower() for error in errors):
+                hints.append("Device selection issue detected:")
+                hints.append("  • List available simulators: xcrun simctl list devices available")
+                hints.append("  • Specify simulator: --simulator 'iPhone 16 Pro'")
+
+        return hints
+
+    @staticmethod
+    def format_verbose(
+        status: str,
+        error_count: int,
+        warning_count: int,
+        xcresult_id: str,
+        errors: list[dict] | None = None,
+        warnings: list[dict] | None = None,
+        test_info: dict | None = None,
+    ) -> str:
+        """
+        Format verbose output with error/warning details.
+
+        Args:
+            status: Build status
+            error_count: Error count
+            warning_count: Warning count
+            xcresult_id: XCResult ID
+            errors: Optional error list
+            warnings: Optional warning list
+            test_info: Optional test results
+
+        Returns:
+            Verbose formatted output
+        """
+        lines = []
+
+        # Header
+        if test_info:
+            total = test_info.get("total", 0)
+            passed = test_info.get("passed", 0)
+            failed = test_info.get("failed", 0)
+            duration = test_info.get("duration", 0.0)
+
+            test_status = "PASS" if failed == 0 else "FAIL"
+            lines.append(f"Tests: {test_status}")
+            lines.append(f"  Total: {total}")
+            lines.append(f"  Passed: {passed}")
+            lines.append(f"  Failed: {failed}")
+            lines.append(f"  Duration: {duration:.1f}s")
+        else:
+            lines.append(f"Build: {status}")
+
+        lines.append(f"XCResult: {xcresult_id}")
+        lines.append("")
+
+        # Errors
+        if errors and len(errors) > 0:
+            lines.append(OutputFormatter.format_errors(errors, limit=5))
+            lines.append("")
+
+        # Warnings
+        if warnings and len(warnings) > 0:
+            lines.append(OutputFormatter.format_warnings(warnings, limit=5))
+            lines.append("")
+
+        # Summary
+        lines.append(f"Summary: {error_count} errors, {warning_count} warnings")
+
+        return "\n".join(lines)

.agents/skills/ios-simulator-skill/scripts/xcode/xcresult.py

@@ -0,0 +1,404 @@
+"""
+XCResult bundle parser.
+
+Extracts structured data from xcresult bundles using xcresulttool.
+"""
+
+import json
+import re
+import subprocess
+import sys
+from pathlib import Path
+from typing import Any
+
+
+class XCResultParser:
+    """
+    Parse xcresult bundles to extract build/test data.
+
+    Uses xcresulttool to extract structured JSON data from Apple's
+    xcresult bundle format.
+    """
+
+    def __init__(self, xcresult_path: Path, stderr: str = ""):
+        """
+        Initialize parser.
+
+        Args:
+            xcresult_path: Path to xcresult bundle
+            stderr: Optional stderr output for fallback parsing
+        """
+        self.xcresult_path = xcresult_path
+        self.stderr = stderr
+
+        if xcresult_path and not xcresult_path.exists():
+            raise FileNotFoundError(f"XCResult bundle not found: {xcresult_path}")
+
+    def get_build_results(self) -> dict | None:
+        """
+        Get build results as JSON.
+
+        Returns:
+            Parsed JSON dict or None on error
+        """
+        return self._run_xcresulttool(["get", "build-results"])
+
+    def get_test_results(self) -> dict | None:
+        """
+        Get test results summary as JSON.
+
+        Returns:
+            Parsed JSON dict or None on error
+        """
+        return self._run_xcresulttool(["get", "test-results", "summary"])
+
+    def get_build_log(self) -> str | None:
+        """
+        Get build log as plain text.
+
+        Returns:
+            Build log string or None on error
+        """
+        result = self._run_xcresulttool(["get", "log", "--type", "build"], parse_json=False)
+        return result if result else None
+
+    def count_issues(self) -> tuple[int, int]:
+        """
+        Count errors and warnings from build results.
+
+        Returns:
+            Tuple of (error_count, warning_count)
+        """
+        error_count = 0
+        warning_count = 0
+
+        build_results = self.get_build_results()
+
+        if build_results:
+            try:
+                # Try top-level errors/warnings first (newer xcresult format)
+                if "errors" in build_results and isinstance(build_results.get("errors"), list):
+                    error_count = len(build_results["errors"])
+                if "warnings" in build_results and isinstance(build_results.get("warnings"), list):
+                    warning_count = len(build_results["warnings"])
+
+                # If not found, try legacy format: actions[0].buildResult.issues
+                if error_count == 0 and warning_count == 0:
+                    actions = build_results.get("actions", {}).get("_values", [])
+                    if actions:
+                        build_result = actions[0].get("buildResult", {})
+                        issues = build_result.get("issues", {})
+
+                        # Count errors
+                        error_summaries = issues.get("errorSummaries", {}).get("_values", [])
+                        error_count = len(error_summaries)
+
+                        # Count warnings
+                        warning_summaries = issues.get("warningSummaries", {}).get("_values", [])
+                        warning_count = len(warning_summaries)
+
+            except (KeyError, IndexError, TypeError) as e:
+                print(f"Warning: Could not parse issue counts from xcresult: {e}", file=sys.stderr)
+
+        # If no errors found in xcresult but stderr available, count stderr errors
+        if error_count == 0 and self.stderr:
+            stderr_errors = self._parse_stderr_errors()
+            error_count = len(stderr_errors)
+
+        return (error_count, warning_count)
+
+    def get_errors(self) -> list[dict]:
+        """
+        Get detailed error information.
+
+        Returns:
+            List of error dicts with message, file, line info
+        """
+        build_results = self.get_build_results()
+        errors = []
+
+        # Try to get errors from xcresult
+        if build_results:
+            try:
+                # Try top-level errors first (newer xcresult format)
+                if "errors" in build_results and isinstance(build_results.get("errors"), list):
+                    for error in build_results["errors"]:
+                        errors.append(
+                            {
+                                "message": error.get("message", "Unknown error"),
+                                "type": error.get("issueType", "error"),
+                                "location": self._extract_location_from_url(error.get("sourceURL")),
+                            }
+                        )
+
+                # If not found, try legacy format: actions[0].buildResult.issues
+                if not errors:
+                    actions = build_results.get("actions", {}).get("_values", [])
+                    if actions:
+                        build_result = actions[0].get("buildResult", {})
+                        issues = build_result.get("issues", {})
+                        error_summaries = issues.get("errorSummaries", {}).get("_values", [])
+
+                        for error in error_summaries:
+                            errors.append(
+                                {
+                                    "message": error.get("message", {}).get(
+                                        "_value", "Unknown error"
+                                    ),
+                                    "type": error.get("issueType", {}).get("_value", "error"),
+                                    "location": self._extract_location(error),
+                                }
+                            )
+
+            except (KeyError, IndexError, TypeError) as e:
+                print(f"Warning: Could not parse errors from xcresult: {e}", file=sys.stderr)
+
+        # If no errors found in xcresult but stderr available, parse stderr
+        if not errors and self.stderr:
+            errors = self._parse_stderr_errors()
+
+        return errors
+
+    def get_warnings(self) -> list[dict]:
+        """
+        Get detailed warning information.
+
+        Returns:
+            List of warning dicts with message, file, line info
+        """
+        build_results = self.get_build_results()
+        if not build_results:
+            return []
+
+        warnings = []
+
+        try:
+            # Try top-level warnings first (newer xcresult format)
+            if "warnings" in build_results and isinstance(build_results.get("warnings"), list):
+                for warning in build_results["warnings"]:
+                    warnings.append(
+                        {
+                            "message": warning.get("message", "Unknown warning"),
+                            "type": warning.get("issueType", "warning"),
+                            "location": self._extract_location_from_url(warning.get("sourceURL")),
+                        }
+                    )
+
+            # If not found, try legacy format: actions[0].buildResult.issues
+            if not warnings:
+                actions = build_results.get("actions", {}).get("_values", [])
+                if not actions:
+                    return []
+
+                build_result = actions[0].get("buildResult", {})
+                issues = build_result.get("issues", {})
+                warning_summaries = issues.get("warningSummaries", {}).get("_values", [])
+
+                for warning in warning_summaries:
+                    warnings.append(
+                        {
+                            "message": warning.get("message", {}).get("_value", "Unknown warning"),
+                            "type": warning.get("issueType", {}).get("_value", "warning"),
+                            "location": self._extract_location(warning),
+                        }
+                    )
+
+        except (KeyError, IndexError, TypeError) as e:
+            print(f"Warning: Could not parse warnings: {e}", file=sys.stderr)
+
+        return warnings
+
+    def _extract_location(self, issue: dict) -> dict:
+        """
+        Extract file location from issue.
+
+        Args:
+            issue: Issue dict from xcresult
+
+        Returns:
+            Location dict with file, line, column
+        """
+        location = {"file": None, "line": None, "column": None}
+
+        try:
+            doc_location = issue.get("documentLocationInCreatingWorkspace", {})
+            location["file"] = doc_location.get("url", {}).get("_value")
+            location["line"] = doc_location.get("startingLineNumber", {}).get("_value")
+            location["column"] = doc_location.get("startingColumnNumber", {}).get("_value")
+        except (KeyError, TypeError):
+            pass
+
+        return location
+
+    def _extract_location_from_url(self, source_url: str | None) -> dict:
+        """
+        Extract file location from sourceURL (newer xcresult format).
+
+        Args:
+            source_url: Source URL like "file:///path/to/file.swift#StartingLineNumber=134&..."
+
+        Returns:
+            Location dict with file, line, column
+        """
+        location = {"file": None, "line": None, "column": None}
+
+        if not source_url:
+            return location
+
+        try:
+            # Split URL and fragment
+            if "#" in source_url:
+                file_part, fragment = source_url.split("#", 1)
+
+                # Extract file path
+                location["file"] = file_part.replace("file://", "")
+
+                # Parse fragment parameters
+                params = {}
+                for param in fragment.split("&"):
+                    if "=" in param:
+                        key, value = param.split("=", 1)
+                        params[key] = value
+
+                # Extract line and column
+                location["line"] = (
+                    int(params.get("StartingLineNumber", 0)) + 1
+                    if "StartingLineNumber" in params
+                    else None
+                )
+                location["column"] = (
+                    int(params.get("StartingColumnNumber", 0)) + 1
+                    if "StartingColumnNumber" in params
+                    else None
+                )
+            else:
+                # No fragment, just file path
+                location["file"] = source_url.replace("file://", "")
+
+        except (ValueError, AttributeError):
+            pass
+
+        return location
+
+    def _run_xcresulttool(self, args: list[str], parse_json: bool = True) -> Any | None:
+        """
+        Run xcresulttool command.
+
+        Args:
+            args: Command arguments (after 'xcresulttool')
+            parse_json: Whether to parse output as JSON
+
+        Returns:
+            Parsed JSON dict, plain text, or None on error
+        """
+        if not self.xcresult_path:
+            return None
+
+        cmd = ["xcrun", "xcresulttool"] + args + ["--path", str(self.xcresult_path)]
+
+        try:
+            result = subprocess.run(cmd, capture_output=True, text=True, check=True)
+
+            if parse_json:
+                return json.loads(result.stdout)
+            return result.stdout
+
+        except subprocess.CalledProcessError as e:
+            print(f"Error running xcresulttool: {e}", file=sys.stderr)
+            print(f"stderr: {e.stderr}", file=sys.stderr)
+            return None
+        except json.JSONDecodeError as e:
+            print(f"Error parsing JSON from xcresulttool: {e}", file=sys.stderr)
+            return None
+
+    def _parse_stderr_errors(self) -> list[dict]:
+        """
+        Parse common errors from stderr output as fallback.
+
+        Returns:
+            List of error dicts parsed from stderr
+        """
+        errors = []
+
+        if not self.stderr:
+            return errors
+
+        # Pattern 0: Swift/Clang compilation errors (e.g., "/path/file.swift:135:59: error: message")
+        compilation_error_pattern = (
+            r"^(?P<file>[^:]+):(?P<line>\d+):(?P<column>\d+):\s*error:\s*(?P<message>.+?)$"
+        )
+        for match in re.finditer(compilation_error_pattern, self.stderr, re.MULTILINE):
+            errors.append(
+                {
+                    "message": match.group("message").strip(),
+                    "type": "compilation",
+                    "location": {
+                        "file": match.group("file"),
+                        "line": int(match.group("line")),
+                        "column": int(match.group("column")),
+                    },
+                }
+            )
+
+        # Pattern 1: xcodebuild top-level errors (e.g., "xcodebuild: error: Unable to find...")
+        xcodebuild_error_pattern = r"xcodebuild:\s*error:\s*(?P<message>.*?)(?:\n\n|\Z)"
+        for match in re.finditer(xcodebuild_error_pattern, self.stderr, re.DOTALL):
+            message = match.group("message").strip()
+            # Clean up multi-line messages
+            message = " ".join(line.strip() for line in message.split("\n") if line.strip())
+            errors.append(
+                {
+                    "message": message,
+                    "type": "build",
+                    "location": {"file": None, "line": None, "column": None},
+                }
+            )
+
+        # Pattern 2: Provisioning profile errors
+        provisioning_pattern = r"error:.*?provisioning profile.*?(?:doesn't|does not|cannot).*?(?P<message>.*?)(?:\n|$)"
+        for match in re.finditer(provisioning_pattern, self.stderr, re.IGNORECASE):
+            errors.append(
+                {
+                    "message": f"Provisioning profile error: {match.group('message').strip()}",
+                    "type": "provisioning",
+                    "location": {"file": None, "line": None, "column": None},
+                }
+            )
+
+        # Pattern 3: Code signing errors
+        signing_pattern = r"error:.*?(?:code sign|signing).*?(?P<message>.*?)(?:\n|$)"
+        for match in re.finditer(signing_pattern, self.stderr, re.IGNORECASE):
+            errors.append(
+                {
+                    "message": f"Code signing error: {match.group('message').strip()}",
+                    "type": "signing",
+                    "location": {"file": None, "line": None, "column": None},
+                }
+            )
+
+        # Pattern 4: Generic compilation errors (but not if already captured)
+        if not errors:
+            generic_error_pattern = r"^(?:\*\*\s)?(?:error|❌):\s*(?P<message>.*?)(?:\n|$)"
+            for match in re.finditer(generic_error_pattern, self.stderr, re.MULTILINE):
+                message = match.group("message").strip()
+                errors.append(
+                    {
+                        "message": message,
+                        "type": "build",
+                        "location": {"file": None, "line": None, "column": None},
+                    }
+                )
+
+        # Pattern 5: Specific "No profiles" error
+        if "No profiles for" in self.stderr:
+            no_profile_pattern = r"No profiles for '(?P<bundle_id>.*?)' were found"
+            for match in re.finditer(no_profile_pattern, self.stderr):
+                errors.append(
+                    {
+                        "message": f"No provisioning profile found for bundle ID '{match.group('bundle_id')}'",
+                        "type": "provisioning",
+                        "location": {"file": None, "line": None, "column": None},
+                    }
+                )
+
+        return errors