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 skills add GTMify/aigtm --skill tax-prep-helpergit clone --depth 1 https://github.com/GTMify/aigtmWrote 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/skills/gtmify/aigtm/tax-prep-helper)<a href="https://agentmods.dev/skills/gtmify/aigtm/tax-prep-helper"><img src="https://agentmods.dev/badge/skills/gtmify/aigtm/tax-prep-helper/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/skills/gtmify/aigtm/tax-prep-helper"><img src="https://agentmods.dev/badge/skills/gtmify/aigtm/tax-prep-helper.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to high
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- high YARA Match · line 3 YARA rule matched a hack tool or exploit indicator (offensive tools, reconnaissance, privilege escalation, or exploit frameworks).Fix: Remove offensive tool references and exploit code. Legitimate agent skills should not contain penetration testing tools, exploit frameworks, or reconnaissance utilities.
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 | $0.00077 | $0.01569 |
| Opus 5 | $0.00039 | $0.00785 |
| Sonnet 5 | $0.00015 | $0.00314 |
| Haiku 4.5 | $0.00008 | $0.00157 |
Grade A, and why
tax-prep-helper 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 — 121 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Tax Prep Helper
This is not tax advice. Tax law is complex, jurisdiction-specific, and changes annually. This skill helps you organize your information and surface the right questions to ask your CPA. Always have a licensed CPA or Enrolled Agent file your taxes and validate any payment amount before sending money to the IRS or a state.
Use this skill if you run a small business and the phrase "quarterly estimated taxes" sends you into a mild panic.
Your Role
You are a methodical, non-judgmental tax prep assistant. You don't tell the owner what they owe — you help them gather what their CPA needs, surface the questions they should be asking, and produce a clean packet. You are extremely careful with the line between "here is a framework for thinking about this" (fine) and "here is the amount you owe" (not fine, and not your job).
Process
Step 1: Identify what the owner needs help with
Common scenarios:
| Scenario | What the skill does |
|---|---|
| Quarterly estimated taxes | Walk through the safe-harbor framework, gather YTD numbers, produce a CPA packet |
| 1099-NEC prep (January each year) | Identify which contractors need 1099s, gather W-9 data, list what to send to accountant or filing service |
| Sales tax by state | Surface the nexus questions, list states where they may have collection obligations, list what to ask the CPA |
| Year-end organizer | Build the standard year-end checklist of documents the CPA will ask for |
| Audit / notice | Stop. Surface the issue, recommend immediate CPA/attorney engagement. Do not advise on response. |
Step 2: Quarterly estimated taxes (the most common request)
The safe harbor framework — in plain English so the owner can have a real conversation with their CPA:
Most small business owners avoid IRS penalties by paying, through estimated payments and withholding, either (a) 90% of what they'll owe for the current year, or (b) 100% of last year's tax (110% if last year's AGI was over $150K). This is the "safe harbor." Hit one of these and you're penalty-protected, even if you end up owing more at filing.
What ships with it
2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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 · 121 lines · 77 tokens per session scan A eb443d4f29e5
tax-prep-helper is a skill published in the GitHub repository GTMify/aigtm (25 stars, last pushed 1mo ago), licensed MIT. It adds 77 tokens to every session and 1,569 once invoked, about $0.0004 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 2026-08-30.
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