What is vibe-modeling AGENTS.md?

Repository instructions for vibe-modeling covering project rules, documentation accuracy, planning, journaling, and periods when no work is being done.

Use them when working on the vibe-modeling repository, especially before planning, editing documentation, or making code changes.

They define how an agent should organize work and keep its changes and documentation consistent.

How cjtrowbridge/vibe-modeling configures Codex and OpenCode

Reuse

Borrowing it

Nothing to install: this file belongs to cjtrowbridge/vibe-modeling. 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/cjtrowbridge/vibe-modeling/main/AGENTS.md

Clone the repo

git clone --depth 1 https://github.com/cjtrowbridge/vibe-modeling

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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/cjtrowbridge/vibe-modeling/agents-md/github.svg)](https://agentmods.dev/instructions/cjtrowbridge/vibe-modeling/agents-md)

Your own site

<a href="https://agentmods.dev/instructions/cjtrowbridge/vibe-modeling/agents-md"><img src="https://agentmods.dev/badge/instructions/cjtrowbridge/vibe-modeling/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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/cjtrowbridge/vibe-modeling/agents-md"><img src="https://agentmods.dev/badge/instructions/cjtrowbridge/vibe-modeling/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 4,156 This file is loaded in full into every session.

When invoked 4,156 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.

Model	Per session	Once invoked
Fable 5.1	$0.04156	$0.04156
Opus 5.5	$0.01662	$0.01662
Sonnet 5.5	$0.00831	$0.00831
Haiku 4.5	$0.00416	$0.00416

Measured 16d ago against content hash c3e72f0ce03b, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

vibe-modeling 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 16d 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 · 319 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

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.

16d ago Changed · +7 lines · +138 tokens per session c3e72f0ce03b
18d ago Changed · +2 lines · +71 tokens per session 8b009755e015
1mo ago Changed · +8 lines · +128 tokens per session 81692c1d8bfd
1mo ago Changed · +1 lines · +24 tokens per session fe6d5a0cbf77
1mo ago Changed · +11 lines · +160 tokens per session f6a6ea680563
1mo ago Changed · +1 lines · +39 tokens per session d2f4eb3d2194
2mo ago First seen · 289 lines · 3,596 tokens per session scan A 8dc3924a6552

Subscribe to this mod's changes

vibe-modeling AGENTS.md is an instructions file published in the GitHub repository cjtrowbridge/vibe-modeling (119 stars, last pushed 16d ago), with no licence file. It adds 4,156 tokens to every session, about $0.0166 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.

Planning

vibe-modeling AGENTS.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
vibe-modeling AGENTS.mdcjtrowbridge/vibe-modeling	Instructions file	119	16d ago	none	A	4,156	Codex, OpenCode
vscode buildNext.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	9,719	GitHub Copilot
next.js AGENTS.mdvercel/next.js	Instructions file	143k	today	MIT	A	7,461	Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchain	Instructions file	149k	yesterday	MIT	A	4,680	Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	5,516	GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	3,093	GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness	Instructions file	274k	2d ago	MIT	A	4,313	Codex, OpenCode

vibe-modeling: Instructions file for Codex