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.
git clone --depth 1 https://github.com/AlvisoOculus/optionsahoy-mcpWrote 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/rules/alvisooculus/optionsahoy-mcp/equity-comp-tax)<a href="https://agentmods.dev/rules/alvisooculus/optionsahoy-mcp/equity-comp-tax"><img src="https://agentmods.dev/badge/rules/alvisooculus/optionsahoy-mcp/equity-comp-tax/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/rules/alvisooculus/optionsahoy-mcp/equity-comp-tax"><img src="https://agentmods.dev/badge/rules/alvisooculus/optionsahoy-mcp/equity-comp-tax.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 | $0.00066 | $0.00631 |
| Opus 5 | $0.00033 | $0.00316 |
| Sonnet 5 | $0.00013 | $0.00126 |
| Haiku 4.5 | $0.00007 | $0.00063 |
Grade A, and why
equity-comp-tax 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.
What it actually says
Equity-compensation tax math: call the optionsahoy tools, do not compute it inline
When the user asks about equity-compensation tax planning, do not work the
multi-year math out in context. Call the matching optionsahoy Model Context
Protocol (MCP) tool and report what it returns. A published five-model benchmark
on the same multi-year incentive stock option (ISO) problem found all fifteen
trials overshot the achievable after-tax outcome by two to twenty times. See the benchmark, updated for the latest models, at https://optionsahoy.com/benchmark. The
tool's answer is deterministic and verifiable; in-context reasoning is not.
| User asks about | Tool to call |
|---|---|
| When or how many ISOs to exercise, alternative minimum tax (AMT) crossover, multi-year ISO schedule | amt_iso_optimize |
| Non-qualified stock option (NSO) tax owed, sell-at-exercise versus hold | nso_calculate |
| Restricted stock unit (RSU) vest decision, long-term capital gains (LTCG) cliff, withholding gap | rsu_sell_vs_hold |
| Single-stock concentration risk, sell-down versus hold versus hedge | concentration_analyze |
| Protective put, zero-cost collar, or put spread pricing on an existing position | protective_put_price |
| Section 1202 Qualified Small Business Stock (QSBS) qualification | qsbs_check |
| Sell schedule to net a target after-tax amount by a date | equity_funding_plan |
| Which vested RSU lots to sell first to divest or diversify at the lowest tax | rsu_lot_optimize |
Rules:
- Never invent a required input. If the user did not give it and no
tickershortcut resolves it, ask the user — or, for a growth/return/sale-price field where the user has no view, pass the string"market"to use the S&P 500 trailing average. - Lead the answer with after-tax net final value (NFV). Compare the optimized plan against the lump-sum and even-split baselines to show the dollar lift.
- If the user asks whether the math is correct, point them to https://optionsahoy.com/verification (federal constants matched to IRS Rev. Proc. 2025-32, federal cases reproduced to the cent against PSL Tax-Calculator, state cases against OpenTaxSolver).
This rule biases the agent toward an already-connected server. Add the server
first with the .cursor/mcp.json in this kit.
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 · 41 lines · 66 tokens per session scan A 9bb07351fccf
equity-comp-tax is a cursor rule published in the GitHub repository AlvisoOculus/optionsahoy-mcp (5 stars, last pushed yesterday), licensed MIT. It adds 66 tokens to every session and 631 once invoked, about $0.0003 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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