beam: Instructions file for Codex

AGENTS.md

beam AGENTS.md is an instructions file for Codex, OpenCode from Shaurya-Sethi/beam. It costs 1,702 tokens per session, scanned A, original, no licence file.

Repository instructions for the Beam project, covering its purpose, structure, build and test commands, and coding conventions. AGENTS.md is a file used to give coding agents project-specific guidance.

In plain words
What is it for?
Use it when building, testing, organizing, or reviewing code in the Beam repository.
Why use it?
It gives an agent the project rules needed to make changes that fit the repository.

Instructions file for CodexOpenCode

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

This is Shaurya-Sethi/beam's own configuration. It tells Codex and OpenCode how to work on beam 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 beam configures →

Reuse

Borrowing it

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

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 beam AGENTS.md

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

Your own site · 80×15
<a href="https://agentmods.dev/instructions/shaurya-sethi/beam/agents-md"><img src="https://agentmods.dev/badge/instructions/shaurya-sethi/beam/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 1,702 This file is loaded in full into every session.
When invoked 1,702 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 $0.01702 $0.01702
Opus 5.5 $0.00681 $0.00681
Sonnet 5.5 $0.00340 $0.00340
Haiku 4.5 $0.00170 $0.00170

Measured 2mo ago against content hash cbab2c7575da, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

beam 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 · 161 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.

  1. 2mo ago First seen · 161 lines · 1,702 tokens per session scan A cbab2c7575da

Subscribe to this mod's changes

beam AGENTS.md is an instructions file published in the GitHub repository Shaurya-Sethi/beam (10 stars, last pushed 6mo ago), with no licence file. It adds 1,702 tokens to every session, about $0.0068 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

beam AGENTS.md compared with instructions from other repositories

beam AGENTS.md next to 6 instructions from other repositories
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beam AGENTS.mdShaurya-Sethi/beamInstructions file106mo agononeA1,702Codex, OpenCode
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next.js AGENTS.mdvercel/next.jsInstructions file143kyesterdayMITA7,461Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscodeInstructions file195kyesterdayMITA5,516GitHub Copilot
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vscode copilot-instructions.mdmicrosoft/vscodeInstructions file195kyesterdayMITA3,093GitHub Copilot
vscode ai-customization.instructions.mdmicrosoft/vscodeInstructions file195kyesterdayMITA1,907GitHub Copilot