kent: Instructions file for Codex

AGENTS.md

kent AGENTS.md is an instructions file for Codex, OpenCode from respawn-llc/kent. It costs 4,438 tokens per session, scanned A, original, AGPL-3.0.

A project guide for kent, describing its repository layout, product principles, Rust code that must remain unchanged, and coding guidelines. The supplied information does not provide enough detail about the project's purpose.

In plain words
What is it for?
Use it when exploring or changing kent, especially when repository structure or frozen Rust code matters.
Why use it?
It helps an assistant understand which parts of the repository are fixed and which development rules apply before making changes.

Instructions file for CodexOpenCode

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

This is respawn-llc/kent's own configuration. It tells Codex and OpenCode how to work on kent 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 kent configures →

Reuse

Borrowing it

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

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 kent AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/respawn-llc/kent/agents-md/github.svg)](https://agentmods.dev/instructions/respawn-llc/kent/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/respawn-llc/kent/agents-md"><img src="https://agentmods.dev/badge/instructions/respawn-llc/kent/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 kent AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/respawn-llc/kent/agents-md"><img src="https://agentmods.dev/badge/instructions/respawn-llc/kent/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 4,438 This file is loaded in full into every session.
When invoked 4,438 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 unknown 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 $0.04438 $0.04438
Opus 5.5 $0.01775 $0.01775
Sonnet 5.5 $0.00888 $0.00888
Haiku 4.5 $0.00444 $0.00444

Measured 2d ago against content hash 2439999a23a4, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

kent 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 2d 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 · 143 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

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. 2d ago Changed · +5 lines · +249 tokens per session 2439999a23a4
  2. 4d ago Changed · +2 lines · +80 tokens per session 04ddfc99fd97
  3. 9d ago Changed · +4 tokens per session a60016493d14
  4. 11d ago Changed · +2 lines · +24 tokens per session cf8c545f13f8
  5. 12d ago Changed · +1 lines · +63 tokens per session 9af2fe6eaee9
  6. 20d ago Changed · +1 lines · +55 tokens per session 18b680625f8e
  7. 1mo ago Changed · -1 tokens per session f3705a7a30f9
  8. 1mo ago Changed · +1 lines · +49 tokens per session 704238c019f0
  9. 1mo ago Changed c68062ebb6bf
  10. 1mo ago First seen · 131 lines · 3,915 tokens per session scan A 64c960aa0084

Subscribe to this mod's changes

kent AGENTS.md is an instructions file published in the GitHub repository respawn-llc/kent (82 stars, last pushed yesterday), licensed AGPL-3.0. It adds 4,438 tokens to every session, about $0.0178 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 2026-08-30.

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