tasse

tasse is a command for coding agents from mikececco/mastro. It costs 26 tokens per session (848 once invoked), scanned A, original, MIT.

A command for estimating Italy’s substitute tax, INPS contributions, and advance payments under the forfettario tax regime, using cash received during the year.

In plain words
What is it for?
Use it to estimate taxes and contributions for an Italian forfettario freelancer or business owner.
Why use it?
It helps turn incomplete tax details into a structured estimate while identifying information that is still needed, such as the ATECO activity code and INPS scheme.

Command

Installs and runs on its own, but its text points at files inside its plugin — anything it tells you to read at a ${CLAUDE_PLUGIN_ROOT} path is only there once the plugin is installed. Installing the plugin gets both.

Part of the mastro plugin — 6 commands shipped together

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add commands/mikececco/mastro/tasse
Clone the repo
git clone --depth 1 https://github.com/mikececco/mastro

Or install mastro, the plugin that ships this one along with the rest of its 6 commands.

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 tasse

README.md
[![agentmods](https://agentmods.dev/badge/commands/mikececco/mastro/tasse.svg)](https://agentmods.dev/commands/mikececco/mastro/tasse)
Your own site
<a href="https://agentmods.dev/commands/mikececco/mastro/tasse"><img src="https://agentmods.dev/badge/commands/mikececco/mastro/tasse.svg" alt="Measured on agentmods" height="20"></a>
Per session 26 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 848 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00026 $0.00848
Opus 5 $0.00013 $0.00424
Sonnet 5 $0.00005 $0.00170
Haiku 4.5 $0.00003 $0.00085

Measured 5d ago against content hash b370096253ba, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

tasse 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 5d 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.

commands/tasse.md · 42 lines

What it actually says

Segui le regole in ${CLAUDE_PLUGIN_ROOT}/knowledge/regole.md.

Input grezzo dell'utente: $ARGUMENTS

Procedura:

  1. Raccogli gli input (chiedi quelli mancanti, uno alla volta se serve):
    • ricavi incassati nell'anno (principio di cassa: non il fatturato emesso)
    • codice ATECO o descrizione attività → serve per il coefficiente
    • sei nei primi 5 anni e hai i requisiti start-up? (aliquota 5% vs 15% — vedi forfettario.md)
    • gestione INPS: separata | artigiani | commercianti | cassa professionale
    • contributi già versati nell'anno (per la deduzione, principio di cassa). Se non noti, puoi stimarli dall'INPS — dillo chiaramente.
  2. Risolvi il coefficiente da ${CLAUDE_PLUGIN_ROOT}/knowledge/2026/coefficienti-ateco.md.
    • Se il codice non è elencato esplicitamente in una riga (es. ATECO 62 software/IT), applica "Altre attività" = 67%. Non assumere 78% per i codici non in 64–66/69–75/85/86–88.
    • Se l'attività prevalente non è determinabile (più attività, descrizione ambigua) → non inventare: fermati e chiedi il codice/l'attività prevalente (regola cita-o-rifiuta).
  3. Leggi aliquote/minimali INPS da forfettario.md (ricorda all'utente che le cifre INPS vanno confermate per l'anno corrente).
  4. Esegui il calcolo deterministico (non fare i conti a mente):
    sh ${CLAUDE_PLUGIN_ROOT}/scripts/calc.sh \
      --ricavi <incassati> --coefficiente <0..1> --aliquota <0.05|0.15> \
      [--contributi <versati>] \
      [--inps separata|artigiani --inps-aliquota <F> --inps-fisso <N> --inps-minimale <N> --inps-riduzione <0|0.35>] \
      [--imposta-precedente <N>]
    
    Acconti — primo anno: se è il primo anno di attività non c'è imposta dell'anno precedente, quindi non è dovuto acconto da storico: passa --imposta-precedente 0 (oppure ignora gli acconti) e spiega che l'eventuale acconto si valuta col metodo previsionale. Negli anni successivi usa l'imposta sostitutiva effettiva dell'anno prima.
  5. ECHO-AND-CONFIRM: prima dei numeri, ripeti il coefficiente, l'aliquota e l'assunzione "ricavi incassati" che hai usato. Così l'utente vede subito se si è classificato male.
  6. Se i ricavi superano 85.000 €: segnala in evidenza la conseguenza sul regime (uscita anno successivo vs immediata, vedi forfettario.md), non limitarti al numero.
  7. Cita le fonti. Chiudi con il disclaimer.
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. 5d ago First seen · 42 lines · 26 tokens per session scan A b370096253ba

Subscribe to this mod's changes

tasse is a command published in the GitHub repository mikececco/mastro (3 stars, last pushed 24d ago), licensed MIT. It adds 26 tokens to every session and 848 once invoked, about $0.0001 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.