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.
curl -O https://raw.githubusercontent.com/andreapollastri/newsletter/main/AGENTS.mdgit clone --depth 1 https://github.com/andreapollastri/newsletterWrote 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.
[](https://agentmods.dev/instructions/andreapollastri/newsletter/agents-md)<a href="https://agentmods.dev/instructions/andreapollastri/newsletter/agents-md"><img src="https://agentmods.dev/badge/instructions/andreapollastri/newsletter/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.
<a href="https://agentmods.dev/instructions/andreapollastri/newsletter/agents-md"><img src="https://agentmods.dev/badge/instructions/andreapollastri/newsletter/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.01949 | $0.01949 |
| Opus 5.5 | $0.00780 | $0.00780 |
| Sonnet 5.5 | $0.00390 | $0.00390 |
| Haiku 4.5 | $0.00195 | $0.00195 |
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.
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 --directto list direct dependencies with versions, orcomposer show <vendor/package>for a single package. - JS packages: check
package.jsonfor 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, notdiscount(). - 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 buildor ask the user to runnpm run devorcomposer 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-queryto run read-only queries against the database instead of writing raw SQL in tinker. - Use
database-schemato inspect table structure before writing migrations or models. - Use
get-absolute-urlto resolve the correct scheme, domain, and port for project URLs. Always use this before sharing a URL with the user. - Use
browser-logsto read browser logs, errors, and exceptions. Only recent logs are useful, ignore old entries.
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.
- 1mo ago Changed · -253 lines · -2,180 tokens per session 53d833a0466c
- 2mo ago First seen · 411 lines · 4,129 tokens per session scan A 12250300cd53
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.
newsletter AGENTS.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| newsletter AGENTS.mdandreapollastri/newsletter | Instructions file | 18 | 2d ago | MIT | A | 1,949 | 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 | yesterday | 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 |