newsletter: Instructions file for Codex

AGENTS.md

newsletter AGENTS.md is an instructions file for Codex, OpenCode from andreapollastri/newsletter. It costs 1,949 tokens per session, scanned A, original, MIT.

Project instructions for a Laravel application using Filament, Livewire, Tailwind, and other Laravel tools. Laravel is a PHP framework for building web applications.

In plain words
What is it for?
Use them when developing or reviewing this Laravel project, especially when choosing framework APIs, packages, file conventions, or verification steps.
Why use it?
They give coding agents the project’s versions, conventions, and required skill-activation rules before changes are made. This reduces the chance of writing code that conflicts with the application.

Instructions file for CodexOpenCode

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

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

Reuse

Borrowing it

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

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.

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README.md
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Your own site
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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.

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Your own site · 80×15
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Per session 1,949 This file is loaded in full into every session.
When invoked 1,949 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 $0.01949 $0.01949
Opus 5.5 $0.00780 $0.00780
Sonnet 5.5 $0.00390 $0.00390
Haiku 4.5 $0.00195 $0.00195

Measured 1mo ago against content hash 53d833a0466c, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

newsletter 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 · 158 lines

How it starts

The opening of the file, as written. The whole thing — 158 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Laravel Boost Guidelines

Foundational Context

This application is a Laravel application running on PHP 8.5. Always use the APIs that match the installed major version of each package — do not assume a version.

Before relying on a package's API, confirm its installed version:

  • PHP packages: run composer show --direct to list direct dependencies with versions, or composer show <vendor/package> for a single package.
  • JS packages: check package.json for the installed versions.

Skills Activation

This project has domain-specific skills available in **/skills/**. You MUST activate the relevant skill whenever you work in that domain—don't wait until you're stuck.

Conventions

  • You must follow all existing code conventions used in this application. When creating or editing a file, check sibling files for the correct structure, approach, and naming.
  • Use descriptive names for variables and methods. For example, isRegisteredForDiscounts, not discount().
  • Check for existing components to reuse before writing a new one.

Verification Scripts

  • Do not create verification scripts or tinker when tests cover that functionality and prove they work. Unit and feature tests are more important.

Application Structure & Architecture

  • Stick to existing directory structure; don't create new base folders without approval.
  • Do not change the application's dependencies without approval.

Frontend Bundling

  • If a frontend change doesn't show in the UI or you get a "Unable to locate file in Vite manifest" error, run npm run build or ask the user to run npm run dev or composer run dev.

Documentation Files

  • You must only create documentation files if explicitly requested by the user.

=== boost rules ===

Laravel Boost

Tools

  • Laravel Boost is an MCP server with tools designed specifically for this application. Prefer Boost tools over manual alternatives like shell commands or file reads.
  • Use database-query to run read-only queries against the database instead of writing raw SQL in tinker.
  • Use database-schema to inspect table structure before writing migrations or models.
  • Use get-absolute-url to resolve the correct scheme, domain, and port for project URLs. Always use this before sharing a URL with the user.
  • Use browser-logs to read browser logs, errors, and exceptions. Only recent logs are useful, ignore old entries.

Read the full file on GitHub · 158 lines

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 Changed · -253 lines · -2,180 tokens per session 53d833a0466c
  2. 2mo ago First seen · 411 lines · 4,129 tokens per session scan A 12250300cd53

Subscribe to this mod's changes

newsletter AGENTS.md is an instructions file published in the GitHub repository andreapollastri/newsletter (18 stars, last pushed 2d ago), licensed MIT. It adds 1,949 tokens to every session, about $0.0078 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

newsletter AGENTS.md compared with instructions from other repositories

newsletter AGENTS.md next to 6 instructions from other repositories
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newsletter AGENTS.mdandreapollastri/newsletterInstructions file182d agoMITA1,949Codex, OpenCode
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vscode oss-third-party-notices.instructions.mdmicrosoft/vscodeInstructions file195kyesterdayMITA5,516GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscodeInstructions file195kyesterdayMITA3,093GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harnessInstructions file274k2d agoMITA4,313Codex, OpenCode