Show HN: Face, a browser window over agents that keeps the plan in files

Hi HN, I'm the author. FACE is a single Go binary. You run `face` in
the folder that holds your projects and it serves a page on
127.0.0.1. It speaks ACP (the Agent Client Protocol that Zed
published) to the official CLI of the agent you already use: Claude
Code, Codex, Copilot, Cursor, OpenCode, Qwen Code or Antigravity,
signed in with your own account. FACE has no model, no key and no
agent loop of its own.Why I built it: a coding agent ships a feature in an afternoon, and
three people and five sessions later nobody can answer "what is in
flight, what did it cost, why was it decided this way". The answer I
landed on is not a dashboard but a method where every decision and
every delivery is a versioned file: a handful of docs written once, a
queue with one line per delivery (docs/06), and one page per delivery
(work/.md) that says what will be built and how it is proven
before any code changes. The method is four slash commands the agent
reads from one file (brainstorm, analyze, propose, apply); it works
without FACE. FACE is the window: the queue becomes a five-lane board,
a card opens into the page plus the live session, and the commit
window shows exactly what the agent…