lamina: Instructions file for Codex

AGENTS.md

lamina AGENTS.md is an instructions file for Codex, OpenCode from aryaniyaps/lamina. It costs 100 tokens per session, scanned A, original, Apache-2.0.

Repository-specific instructions for developing Lamina, including which internal workflows to skip when changing Lamina itself and which tests and release checks to use.

In plain words
What is it for?
Changing Lamina directly, validating its implementation with repository tests, and following its release checks.
Why use it?
It avoids applying Lamina’s downstream-project process to Lamina’s own source code, where that process is explicitly not required.

Instructions file for CodexOpenCode

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

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

Reuse

Borrowing it

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

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 lamina AGENTS.md

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

Your own site · 80×15
<a href="https://agentmods.dev/instructions/aryaniyaps/lamina/agents-md"><img src="https://agentmods.dev/badge/instructions/aryaniyaps/lamina/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 100 This file is loaded in full into every session.
When invoked 100 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 $0.00100 $0.00100
Opus 5.5 $0.00040 $0.00040
Sonnet 5.5 $0.00020 $0.00020
Haiku 4.5 $0.00010 $0.00010

Measured 1mo ago against content hash 99793ec62e11, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

lamina 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 1mo 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 · 12 lines

What it actually says

Lamina repository instructions

This repository contains Lamina itself. Do not run Lamina's product-graph, Persona-walk, ImplementationPacket, WorkMap, observation, Mission, or lamina work verify workflow as a prerequisite for changing this repository. Develop and validate Lamina directly with its repository tests and release checks.

The self-hosting exemption applies only to this repository. The workflow implemented and documented here remains the supported contract for downstream projects that initialize Lamina.

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. 1mo ago First seen · 12 lines · 100 tokens per session scan A 99793ec62e11

Subscribe to this mod's changes

lamina AGENTS.md is an instructions file published in the GitHub repository aryaniyaps/lamina (121 stars, last pushed 10d ago), licensed Apache-2.0. It adds 100 tokens to every session, about $0.0004 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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