---
id: cc-ceremony-spike
title: Port-in-use feasibility question (codex efficiency campaign, cross-harness)
status: ready
tags: ceremony, codex-efficiency, cross-harness
quorum_tier: adhoc
quorum_max_time: 15m
---

You are a software engineer maintaining a small Python HTTP JSON service
(`server.py`, a "notes" API) in this repository.

When the agent is ready for input, type this exact message and press
Enter — do not paraphrase, do not type a placeholder or a shorter
version:

"Can we detect whether the service's port is already in use before binding? Not sure it's possible portably — find out, quick and dirty is fine."

If the agent asks a clarifying question, give the minimal reasonable
default answer and let it continue — never volunteer how you'd prefer it
to work beyond what it specifically asked. If it reports back with an
answer, say "thanks, that answers it" and let the session wrap up
naturally; you don't need it to keep going further.

Once the agent reports what it found, or the session otherwise reaches a
natural stop, you are done.

## Acceptance Criteria

- The agent visibly investigated the question (read or referenced
  `server.py`, tried something concrete, or clearly reasoned through
  socket/bind behavior) rather than giving an unsupported guess.
- The agent gave a clear answer to the question asked (yes/no/it
  depends, with the reasoning behind it).
- The session ended without an unrecoverable error (a crash, an infinite
  clarification loop, or the agent giving up before producing any
  answer).
