repl: Instructions file for Codex

AGENTS.md

repl AGENTS.md is an instructions file for Codex, OpenCode from yllibed/repl. It costs 74 tokens per session, scanned A, original, MIT.

A project instruction file for repl, a .NET command graph with a command-line interface, interactive shell, remote sessions, and MCP support. It documents how releases should be prepared.

In plain words
What is it for?
Use it when preparing a release or changing the release workflow; preparation must run from the main branch with Nerdbank.GitVersioning.
Why use it?
It keeps release preparation consistent and prevents creating local release packages when the project's CI system should produce them.

Instructions file for CodexOpenCode

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

This is yllibed/repl's own configuration. It tells Codex and OpenCode how to work on repl 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 repl configures →

Reuse

Borrowing it

Nothing to install: this file belongs to yllibed/repl. 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/yllibed/repl/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/yllibed/repl

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 repl AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/yllibed/repl/agents-md/github.svg)](https://agentmods.dev/instructions/yllibed/repl/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/yllibed/repl/agents-md"><img src="https://agentmods.dev/badge/instructions/yllibed/repl/agents-md/github.svg" alt="Measured on agentmods" height="20"></a>

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.

agentmods 80×15 button for repl AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/yllibed/repl/agents-md"><img src="https://agentmods.dev/badge/instructions/yllibed/repl/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 74 This file is loaded in full into every session.
When invoked 74 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 $0.00074 $0.00074
Opus 5.5 $0.00030 $0.00030
Sonnet 5.5 $0.00015 $0.00015
Haiku 4.5 $0.00007 $0.00007

Measured 2mo ago against content hash b138125240d2, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

repl 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 2mo 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 · 7 lines

What it actually says

Repository Guidance

  • Release and publishing guidance lives in docs/publishing.md.
  • Use Nerdbank.GitVersioning (nbgv prepare-release) for release preparation.
  • Always run release preparation from main, not from a feature or pull request branch.
  • CI builds and packs release artifacts; do not create local release packages unless explicitly needed for diagnostics.
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. 2mo ago First seen · 7 lines · 74 tokens per session scan A b138125240d2

Subscribe to this mod's changes

repl AGENTS.md is an instructions file published in the GitHub repository yllibed/repl (10 stars, last pushed 3d ago), licensed MIT. It adds 74 tokens to every session, about $0.0003 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 2026-08-31.

Related

repl AGENTS.md compared with instructions from other repositories

repl AGENTS.md next to 6 instructions from other repositories
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