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 AlexTeplovCPA/it-contractors-skills --skill checking-shareholder-or-corporate-leakagegit clone --depth 1 https://github.com/AlexTeplovCPA/it-contractors-skillsWrote 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/alexteplovcpa/it-contractors-skills/checking-shareholder-or-corporate-leakage)<a href="https://agentmods.dev/skills/alexteplovcpa/it-contractors-skills/checking-shareholder-or-corporate-leakage"><img src="https://agentmods.dev/badge/skills/alexteplovcpa/it-contractors-skills/checking-shareholder-or-corporate-leakage/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/alexteplovcpa/it-contractors-skills/checking-shareholder-or-corporate-leakage"><img src="https://agentmods.dev/badge/skills/alexteplovcpa/it-contractors-skills/checking-shareholder-or-corporate-leakage.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 | $0.00086 | $0.01280 |
| Opus 5 | $0.00043 | $0.00640 |
| Sonnet 5 | $0.00017 | $0.00256 |
| Haiku 4.5 | $0.00009 | $0.00128 |
Grade A, and why
checking-shareholder-or-corporate-leakage 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 12d 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 — 150 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Checking Shareholder or Corporate Leakage
Review shareholder loan and corporate expense leakage facts for a Canadian IT contractor who operates through a corporation.
Core Rules
- Organize and flag leakage facts, do not advise on corporate tax treatment.
- Do not determine the shareholder benefit amount.
- Do not determine the shareholder loan balance.
- Do not advise on how to correct leakage.
- Preserve uncertainty where the nature of payments is unclear.
- Do not state that any arrangement is compliant or non-compliant.
- Do not state that the user is ready to file.
- Use this phrase where relevant: "That is outside what this workflow covers. It is a question for a CPA before you file."
Inputs
Do not ask the user to share SIN, business number, account numbers, or client names. Use general descriptions and rounded amounts.
Accept any of:
- output from
identifying-expense-categories - description of corporate expense payments
- description of shareholder loan activity
- corporate bank or credit card records
- user explanation in chat
Minimum useful input:
- indication that a corporation exists
- at least one expense or payment that may involve a personal component paid by the corporation
Read from the shared input schema where available: case_id, tax_year, engagement_mode, user_profile, facts.business_activity, facts.corporate_structure, documents.expense_support, form_context, review_state.
Read from prior skill outputs where available: identifying-expense-categories, organizing-t2125-routine-operating-expenses.
Workflow
1. Confirm leakage review is relevant
Check whether the user operates through a corporation. If no corporation is involved, return not_applicable.
2. Identify potential leakage items
Look for items where personal expenses may have been paid by the corporation or where the business purpose is unclear:
- personal travel claimed as business
- personal meals or entertainment with no business purpose
- personal vehicle costs charged to the corporation
- home expenses charged to the corporation without a clear business basis
- personal purchases on corporate accounts
- transfers from the corporation to the user without clear salary or dividend treatment
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.
- 12d ago First seen · 150 lines · 86 tokens per session scan A 691885817bfc
checking-shareholder-or-corporate-leakage is a skill published in the GitHub repository AlexTeplovCPA/it-contractors-skills (2 stars, last pushed 2mo ago), licensed MIT. It adds 86 tokens to every session and 1,280 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 2026-08-31.
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