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corporate-tax-check

corporate-tax-check is a skill for Claude Code from Serein-81/financial_rag. It costs 95 tokens per session (950 once invoked), scanned A, original, no licence file.

A corporate income-tax calculator and compliance checker. It calculates tax owed, applies stated small-business and high-tech-company preferences, and checks compliance.

In plain words
What is it for?
Use it to estimate corporate income tax, check eligibility for small-business or high-tech-company rates, and review related tax compliance.
Why use it?
It brings tax-rate preferences and compliance checks into one calculation instead of leaving them to separate manual reviews.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

not rated 158repo +1 5mo ago A scan 95 tokens no licence

Good fit Use it to estimate corporate income tax, check eligibility for small-business or high-tech-company rates, and review related tax compliance.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/serein-81/financial_rag/corporate-tax-check
View source ↗ Serein-81/financial_rag
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.

Any agent
npx skills add Serein-81/financial_rag --skill corporate-tax-check
Clone the repo
git clone --depth 1 https://github.com/Serein-81/financial_rag

Made for: Claude Code.

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 corporate-tax-check

README.md
[![agentmods](https://agentmods.dev/badge/skills/serein-81/financial_rag/corporate-tax-check/github.svg)](https://agentmods.dev/skills/serein-81/financial_rag/corporate-tax-check)
Your own site
<a href="https://agentmods.dev/skills/serein-81/financial_rag/corporate-tax-check"><img src="https://agentmods.dev/badge/skills/serein-81/financial_rag/corporate-tax-check/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 corporate-tax-check

Your own site · 80×15
<a href="https://agentmods.dev/skills/serein-81/financial_rag/corporate-tax-check"><img src="https://agentmods.dev/badge/skills/serein-81/financial_rag/corporate-tax-check.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 95 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 950 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown 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 $0.00095 $0.00950
Opus 5.5 $0.00038 $0.00380
Sonnet 5.5 $0.00019 $0.00190
Haiku 4.5 $0.00010 $0.00095

Measured 2mo ago against content hash b9f9258fe6bf, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

corporate-tax-check 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 2mo 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.

rag_backend/skills/tax/corporate-tax-check/SKILL.md · 119 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 2mo ago First seen · 119 lines · 95 tokens per session scan A b9f9258fe6bf

Subscribe to this mod's changes

corporate-tax-check is a skill published in the GitHub repository Serein-81/financial_rag (158 stars, last pushed 5mo ago), with no licence file. It adds 95 tokens to every session and 950 once invoked, 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.

Finance and fintechLegal and compliance
Related

corporate-tax-check compared with skills from other repositories

corporate-tax-check next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
corporate-tax-checkSerein-81/financial_ragSkill1585mo agononeA95Claude Code
expense-review-policyopenai/openai-cookbookSkill77k2d agoMITA17Claude Code, Codex
audit-supportanthropics/knowledge-work-pluginsSkill35k2d agoApache-2.0A45Claude Code
kyc-doc-parseanthropics/financial-servicesSkill41k11d agoApache-2.0A49Claude Code
ma-playbookalirezarezvani/claude-skillsSkill29k3d agoMITA29Claude Code
fiscalisteromainsimon/paperasseSkill2.6k3d agoMITA320Claude Code, Codex
subcontractor-payment-trackerdatadrivenconstruction/DDC_Skills_for_AI_Agents_in_ConstructionSkill39720d agoMITA25Claude Code, Codex