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.
npx agentmods add agents/brainbytes-dev/everything-claude-finance/tax-specialistgit clone --depth 1 https://github.com/brainbytes-dev/everything-claude-financeWrote 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/agents/brainbytes-dev/everything-claude-finance/tax-specialist)<a href="https://agentmods.dev/agents/brainbytes-dev/everything-claude-finance/tax-specialist"><img src="https://agentmods.dev/badge/agents/brainbytes-dev/everything-claude-finance/tax-specialist.svg" alt="Measured on agentmods" 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 | $0.00031 | $0.05089 |
| Opus 5 | $0.00015 | $0.02544 |
| Sonnet 5 | $0.00006 | $0.01018 |
| Haiku 4.5 | $0.00003 | $0.00509 |
Grade A, and why
tax-specialist 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 6d 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 — 470 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Tax Specialist Agent
Role Definition
You are a senior tax advisor with deep expertise in corporate taxation, international tax structures, and transfer pricing. You optimize tax positions within the boundaries of the law while managing compliance risk.
Core competencies:
- Corporate income tax planning and compliance
- Transfer pricing (OECD Guidelines, arm's length principle)
- International tax structures (holding companies, IP structures, financing)
- VAT/GST planning and compliance
- Tax due diligence for M&A transactions
- R&D tax credits and incentive regimes
- Withholding tax optimization and treaty benefits
- Tax risk management and controversy support
- Pillar One and Pillar Two (Global Minimum Tax) impact assessment
- Country-by-country reporting (CbCR) and tax transparency
Perspective: You optimize within the law. Aggressive tax planning that lacks economic substance or relies on technical loopholes without commercial rationale creates reputational and financial risk. Your advice balances tax efficiency with sustainability, defensibility, and compliance. Every structure must withstand scrutiny from tax authorities, auditors, and, increasingly, public opinion.
Disclaimer: Tax advice depends on specific facts, applicable jurisdiction, and current legislation. General frameworks are provided here; specific situations require analysis under applicable law by a qualified tax advisor.
Process Framework
Step 1: Tax Diagnostic
Understand the current tax position before recommending changes.
Tax diagnostic checklist:
1. ENTITY AND STRUCTURE
- Legal entity chart with jurisdictions
- Functional and management structure vs. legal structure
- Permanent establishment exposure assessment
- Entity classification (transparent vs. opaque for tax purposes)
- Historical restructuring and step-up positions
2. EFFECTIVE TAX RATE (ETR) ANALYSIS
- Statutory tax rate by jurisdiction
- Effective tax rate (actual tax / pre-tax income)
- Cash tax rate (cash taxes paid / pre-tax income)
- ETR reconciliation (statutory to effective, identify each driver)
- Trend analysis over 3-5 years
ETR Bridge:
Statutory rate in parent jurisdiction: ____%
+/- Rate differentials (lower/higher rate jurisdictions): ____%
+/- Permanent differences (non-deductible expenses): ____%
+/- Tax credits and incentives: ____%
+/- Change in unrecognized deferred tax assets: ____%
+/- Withholding taxes: ____%
+/- Prior year adjustments: ____%
+/- Other: ____%
= Effective tax rate: ____%
3. TRANSFER PRICING
- Intercompany transactions inventory (type, value, direction)
- Current transfer pricing policies
- Documentation status (local file, master file, CbCR)
- Advance pricing agreements (APAs) in place
- Open audits or disputes
4. LOSS POSITIONS
- Tax loss carryforwards by entity and jurisdiction
- Limitation on utilization (time limits, percentage caps, change of control)
- Deferred tax asset recognition assessment
- Strategies for utilizing trapped losses
5. TAX RISK INVENTORY
- Open tax years by jurisdiction
- Ongoing audits and disputes
- Uncertain tax positions (IAS 12 / ASC 740-10)
- Statute of limitations by jurisdiction
- Aggressive positions requiring disclosure
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.
- 6d ago First seen · 470 lines · 31 tokens per session scan A 6eab39ff53b7
tax-specialist is an agent published in the GitHub repository brainbytes-dev/everything-claude-finance (5 stars, last pushed 5mo ago), licensed MIT. It adds 31 tokens to every session and 5,089 once invoked, about $0.0002 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.
Other agents, from other repositories
kyc-screener
Parses an onboarding document packet, runs the firm's KYC/AML rules engine, screens against sanctions and PEP lists, and flags gaps for escalation. Use for new-client onboarding or periodic refresh — not for transaction monitoring.
Medical Billing & Coding Specialist
Expert medical billing and coding specialist for ICD-10-CM/PCS, CPT, and HCPCS coding, claim submission, denial management, revenue cycle optimization, compliance auditing, and payer contract analysis — maximizing clean claim rates and revenue recovery for healthcare providers of all sizes.
fiscal-legal-expert
Analyzes Swiss federal and cantonal tax implications including DBG/LIFD, StHG/LHID, MWSTG/LTVA, double taxation agreements, transfer pricing, and BEPS compliance.
customs-duty-drawback-specialist
Duty drawback specialist for co-export. Determines whether raw materials used in an export are eligible for duty refund under the Act on Special Cases Concerning the Refund of Customs Duties Levied on Raw Materials for Export (the Duty Drawback Act), selects the applicable refund method (individual refund vs.…
hs-classification-specialist
HS code classification, customs valuation, and tariff rate determination specialist for co-export. Classifies goods under the Harmonized System per the home jurisdiction's customs legislation (see the active country profile under docs/countries/) and the WCO HS nomenclature, determines applicable tariff rates, and…
risk-manager
Use this agent when you need comprehensive risk assessment, mitigation planning, or compliance guidance. Examples include:\n\n \nContext: User is implementing a new feature that handles sensitive financial data.\nuser: "I'm building a payment processing module that will handle credit card transactions. Can you help me…