{"slug": "show-hn-y-a-malleable-coding-agent-desktop-app-built-with-electron", "title": "Show HN: Y – A malleable coding-agent desktop app built with Electron", "summary": "Developer y-times-y released Y, an open-source desktop coding-agent app built with Electron that allows users to modify its own interface through a protected Modify surface while running local agents like Claude Code and Codex. The app separates a protected Kernel from a mutable Userland, enabling self-modifying UI changes with rollback capabilities, and is currently available for macOS Apple Silicon.", "body_md": "**y** is a self-modifying desktop coding-agent app.\n\nIt is built around a simple idea: software should become malleable while you use it. The main interface is a chat, but the app can reshape its own UI through a protected Modify surface. You can ask y to change how y itself works, keep the change if it renders safely, or roll it back if it does not.\n\ny is not a new agent model. It is a local, chat-first workspace for the coding agents you already use: Claude Code, OpenAI Codex, and other CLI-native agents over time.\n\nMost coding-agent apps are fixed products. You can use them, configure them, maybe install plugins, but the product itself still belongs to someone else.\n\ny is different. It treats the app as malleable software:\n\n**Chat first.** The default surface is a focused conversation, not an editor clone.**Self-modifying.** The Modify rail can edit the live Userland UI while the protected Kernel stays locked.**Local agents.** Claude Code and Codex run as official local CLIs with the user's own login.**Parallel work.** Chats can use isolated workspaces so agents can work in parallel without stepping on the same files.**Diff-gated changes.** UI changes compile, render, show a diff, and can be kept or discarded.**Rollback built in.** The app keeps known-good snapshots so broken UI changes can recover.\n\ny is split into two parts:\n\n| Layer | What it does |\n|---|---|\nProtected Kernel |\nAuth, local engine adapters, app state, safety rails, filesystem boundaries, terminal bridge, Modify rail, and rollback runway. |\nMutable Userland |\nThe chat UI and app surface that can be edited live by the user or by Modify. |\n\nThis split lets y feel self-modifying without giving the modification agent control over the protected core. The app can change its own interface, but the Kernel still owns the trust boundaries.\n\ny runs coding agents locally instead of proxying them through a hosted account.\n\n**Claude Code** uses the official Claude Code CLI.**Codex** uses the official Codex CLI.- Model and effort settings stay visible in the composer.\n- Multiple chats can run against different engines.\n- Isolated workspaces let parallel agents work without interfering with each other.\n\nThe user's local CLI auth remains the source of truth. y orchestrates the experience; it does not replace the agent providers.\n\nThe latest macOS build is published on GitHub Releases:\n\nCurrent release target: **macOS Apple Silicon**.\n\n```\ncd app\npnpm install\npnpm dev\n```\n\nUseful checks:\n\n```\npnpm typecheck\npnpm test:ui\n```\n\nBuild a local macOS bundle:\n\n```\npnpm build:mac\n```\n\nThe generated app artifacts are written to `app/dist/`\n\nand are intentionally not committed.\n\ny keeps the coding workflow local. Project files, terminal commands, and agent prompts are not sent to y's product analytics.\n\nProduct analytics are for app usage health: sign-in state, feature usage, feedback, and missing-brick requests. Missing-brick reports are structured and should describe the missing capability, not the user's private prompt or source code.\n\ny is under active development. The current focus is launch-readiness for macOS: packaging, auth, analytics, local app-state durability, and the self-modifying Modify workflow.\n\nMIT. See [LICENSE](/y-times-y/y/blob/main/LICENSE).", "url": "https://wpnews.pro/news/show-hn-y-a-malleable-coding-agent-desktop-app-built-with-electron", "canonical_source": "https://github.com/y-times-y/y", "published_at": "2026-06-24 00:15:31+00:00", "updated_at": "2026-06-24 01:14:14.521777+00:00", "lang": "en", "topics": ["ai-agents", "developer-tools", "ai-tools"], "entities": ["y-times-y", "Claude Code", "OpenAI Codex", "Electron", "macOS", "Apple Silicon", "MIT"], "alternates": {"html": "https://wpnews.pro/news/show-hn-y-a-malleable-coding-agent-desktop-app-built-with-electron", "markdown": "https://wpnews.pro/news/show-hn-y-a-malleable-coding-agent-desktop-app-built-with-electron.md", "text": "https://wpnews.pro/news/show-hn-y-a-malleable-coding-agent-desktop-app-built-with-electron.txt", "jsonld": "https://wpnews.pro/news/show-hn-y-a-malleable-coding-agent-desktop-app-built-with-electron.jsonld"}}