codex-copilot-relay: Instructions file for Codex

AGENTS.md

codex-copilot-relay AGENTS.md is an instructions file for Codex, OpenCode from madhavsomani/codex-copilot-relay. It costs 700 tokens per session, scanned A, original, MIT.

Repository instructions for a relay that connects Codex and GitHub Copilot. They define how live deployments are versioned, restarted safely, recovered after failures, and verified through a health endpoint.

In plain words
What is it for?
Use them when changing the relay or its dashboard, preparing a release, repairing a deployment, or verifying that the live service runs the intended version.
Why use it?
They prevent an unversioned change from being deployed, avoid interrupting active exchanges, and require checking the running version rather than trusting a refreshed dashboard.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: mentions Codex.

This is madhavsomani/codex-copilot-relay's own configuration. It tells Codex and OpenCode how to work on codex-copilot-relay itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything codex-copilot-relay configures →

Reuse

Borrowing it

Nothing to install: this file belongs to madhavsomani/codex-copilot-relay. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/madhavsomani/codex-copilot-relay/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/madhavsomani/codex-copilot-relay

Made for: Codex, OpenCode.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for codex-copilot-relay AGENTS.md

README.md
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Your own site
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Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

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Your own site · 80×15
<a href="https://agentmods.dev/instructions/madhavsomani/codex-copilot-relay/agents-md"><img src="https://agentmods.dev/badge/instructions/madhavsomani/codex-copilot-relay/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 700 This file is loaded in full into every session.
When invoked 700 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00700 $0.00700
Opus 5.5 $0.00280 $0.00280
Sonnet 5.5 $0.00140 $0.00140
Haiku 4.5 $0.00070 $0.00070

Measured 7d ago against content hash 79c69f33f5c3, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

codex-copilot-relay AGENTS.md scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 7d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

AGENTS.md · 50 lines

How it starts

The opening of the file, as written. The whole thing — 50 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Codex Copilot Relay agent instructions

Deployment invariant

  • Every runtime or dashboard change intended for the live relay must increment the version in both package.json and package-lock.json.
  • After the version bump, run Start or Repair so a fresh watchdog is staged. The watchdog reads expectedVersion once at startup. Arbitrary file edits and an unchanged version do not hot-reload or deploy automatically.
  • Repair, internal Start-Codex-CopilotProxy and automatic recovery must never force-restart healthy active work. They use deferred promotion so in-memory continuations can finish.
  • Explicit desktop Start Relay and Stop & Restore are intentional cancellation exceptions: disable recovery, cancel both adapters (including pending uploads/continuations), stop only verified owned processes. Stop restores the protected TOML; Start keeps the managed configuration and starts the latest local package. Never reuse -CancelActive in internal Start, Repair or automatic upgrades/recovery.
  • The legacy automatic recovery exception is Start-Codex-CopilotProxy.ps1 -RecoverDeadBackend: it must prove, across repeated samples, an owned listener, a fatal CLI heap crash after startup, and no remaining Copilot worker. Those stale exchanges are already lost. Supervised releases recover the SDK in-process and must never use this legacy exception to terminate a healthy worker.
  • Verify deployment by reading http://127.0.0.1:4144/health and matching its version to package.json. Refreshing the dashboard alone is not proof.

Required verification

  • Preserve OpenAI desktop identity, native account/Remote services, device pairings and managed Remote policies when changing model routing. Never expose the loopback relay to make mobile access work. Keep the paired desktop-auth flag and nonsecret model bearer override together.
  • For config/lifecycle changes, run remote-compatibility.test.ps1; after a Codex engine upgrade rerun probe-desktop-auth.mjs against that installed engine. Do not claim iPhone Remote is verified without a phone-to-host prompt/reply round trip. See docs/IPHONE-REMOTE.md.
  • Support unmodified stock Codex only. Do not ship or install custom engines. Native app voice is unsupported on the tested engine; never weaken model credential isolation to enable it. See docs/NATIVE-VOICE.md.
  • Native OpenAI helpers are images-only. Search is removed, including legacy opt-ins. Browser and connector tools are separate, harness-owned capabilities.
  • Run basic-revert.test.ps1 for lifecycle work. Connection status must distinguish configured routing from observed traffic and authentication.
  • The connection center is guided/read-only, not an automatic installer.

Read the full file on GitHub · 50 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 7d ago Changed · +8 lines · +141 tokens per session 79c69f33f5c3
  2. 1mo ago Changed · +8 lines · +121 tokens per session 9f4542baaaa9
  3. 1mo ago Changed · +9 lines · +129 tokens per session 0033c0d8b08c
  4. 1mo ago First seen · 25 lines · 309 tokens per session scan A b7208c0a571c

Subscribe to this mod's changes

codex-copilot-relay AGENTS.md is an instructions file published in the GitHub repository madhavsomani/codex-copilot-relay (1 stars, last pushed yesterday), licensed MIT. It adds 700 tokens to every session, about $0.0028 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-05.

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