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/CLAUDE.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/claude-md)<a href="https://agentmods.dev/instructions/andreapollastri/newsletter/claude-md"><img src="https://agentmods.dev/badge/instructions/andreapollastri/newsletter/claude-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/claude-md"><img src="https://agentmods.dev/badge/instructions/andreapollastri/newsletter/claude-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 | $0.03401 | $0.03401 |
| Opus 5 | $0.01700 | $0.01700 |
| Sonnet 5 | $0.00680 | $0.00680 |
| Haiku 4.5 | $0.00340 | $0.00340 |
Grade A, and why
newsletter CLAUDE.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 9d 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 — 324 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Laravel Boost Guidelines
The Laravel Boost guidelines are specifically curated by Laravel maintainers for this application. These guidelines should be followed closely to ensure the best experience when building Laravel applications.
Foundational Context
This application is a Laravel application and its main Laravel ecosystems package & versions are below. You are an expert with them all. Ensure you abide by these specific packages & versions.
- php - 8.5
- filament/filament (FILAMENT) - v5
- laravel/framework (LARAVEL) - v13
- laravel/prompts (PROMPTS) - v0
- livewire/livewire (LIVEWIRE) - v4
- laravel/boost (BOOST) - v2
- laravel/mcp (MCP) - v0
- laravel/pail (PAIL) - v1
- laravel/pint (PINT) - v1
- laravel/sail (SAIL) - v1
- phpunit/phpunit (PHPUNIT) - v12
Skills Activation
This project has domain-specific skills available. You MUST activate the relevant skill whenever you work in that domain—don't wait until you're stuck.
laravel-best-practices— Apply this skill whenever writing, reviewing, or refactoring Laravel PHP code. This includes creating or modifying controllers, models, migrations, form requests, policies, jobs, scheduled commands, service classes, and Eloquent queries. Triggers for N+1 and query performance issues, caching strategies, authorization and security patterns, validation, error handling, queue and job configuration, route definitions, and architectural decisions. Also use for Laravel code reviews and refactoring existing Laravel code to follow best practices. Covers any task involving Laravel backend PHP code patterns.
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.
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.
- 9d ago First seen · 324 lines · 3,401 tokens per session scan A 90eea797f029
newsletter CLAUDE.md is an instructions file published in the GitHub repository andreapollastri/newsletter (11 stars, last pushed 3d ago), licensed MIT. It adds 3,401 tokens to every session, about $0.0170 per session on Opus 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.
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