Project ideas from Hacker News discussions.

Xcode 26.3 – Developers can leverage coding agents directly in Xcode

📝 Discussion Summary (Click to expand)

Generating summary…


🚀 Project Ideas

Generating project ideas…

MCP‑Ready Xcode Build Server

Summary

  • Provides a headless, MCP‑compatible build, test, and preview service for Xcode projects.
  • Generates compile_commands.json and .clangd files automatically, exposing full build metadata to agents.
  • Enables agents to run SwiftUI previews, capture screenshots, and perform static analysis without opening Xcode.

Details

Key Value
Target Audience iOS/macOS developers using Claude Code, Copilot, or custom LLM agents.
Core Feature MCP‑enabled Xcode build server with automatic compile command generation and preview rendering.
Tech Stack Swift, XcodeBuildMCP, Docker, gRPC, OpenAPI, optional Rust for performance.
Difficulty Medium
Monetization Revenue‑ready: $9/month per project or $99/year for unlimited projects.

Notes

  • “I built an entire iOS app without opening Xcode UI… What still requires Xcode: Instruments profiling, Signing/provisioning” – this tool removes the UI dependency for most tasks.
  • “I tried the three provider types with xcodes current agent integration pane and just trying to use them crashed xcode itself” – a stable headless server eliminates crashes.
  • Opens discussion on how to standardize MCP tooling across IDEs and encourages open‑source contributions.

Agentic iOS CLI Toolkit

Summary

  • A command‑line interface that wraps XcodeBuildMCP, xcrun, and custom scripts to give agents full control over iOS development workflows.
  • Commands: build, run, simulate, screenshot, describe_ui, profile, sign, deploy.
  • Designed for agents that prefer a terminal‑first workflow and want to avoid Xcode’s UI quirks.

Details

Key Value
Target Audience Developers who use LLM agents (Claude, OpenAI) and prefer CLI over Xcode UI.
Core Feature Unified CLI exposing all Xcode build, run, and debug capabilities to agents.
Tech Stack Bash/Python, XcodeBuildMCP, Fastlane, lldb, Swift Package Manager.
Difficulty Low
Monetization Hobby (open source) with optional paid support add‑ons.

Notes

  • “I built an entire iOS app without opening Xcode UI… I do have claude analyze and test, though” – this toolkit lets agents do everything from the terminal.
  • “What still requires Xcode: Instruments profiling, Signing/provisioning” – the CLI includes profile and sign wrappers.
  • Practical utility for teams that want to integrate agentic coding into CI/CD pipelines.

Xcode Debugger Performance Optimizer

Summary

  • A lightweight lldb plugin that preloads framework symbols, caches symbol tables, and enhances the variable view with richer formatting and multi‑screen support.
  • Reduces “10‑second” symbol loading delays and improves step‑debugging responsiveness.
  • Adds a floating preview window for SwiftUI canvases, solving the “no separate window” issue.

Details

Key Value
Target Audience Xcode users frustrated with slow debugging and UI preview limitations.
Core Feature Symbol caching, enhanced variable pane, floating SwiftUI preview, multi‑screen debugging.
Tech Stack Swift, lldb API, Xcode plugin framework, macOS Accessibility APIs.
Difficulty High
Monetization Revenue‑ready: $4.99 one‑time or $29/year for updates and support.

Notes

  • “The debugger variable view panel is so bare bones… When debug‑stepping, the debugger frontend is quite often stuck for 10s” – this plugin directly addresses those pain points.
  • “SwiftUI preview canvas can’t be floated as a separate window” – the floating preview solves this.
  • Likely to spark discussion on improving Xcode’s core debugging experience and could become a staple for power users.

Read Later