cap-table-analyst

cap-table-analyst is a skill for Claude Code, Codex from rohasnagpal/legal-ai-skills. It costs 184 tokens per session (1,154 once invoked), scanned A, original, MIT.

A tool for calculating ownership and dilution from a supplied cap table—the record of who owns which shares—and the stated financing terms. It shows the arithmetic and identifies missing details instead of filling them in by assumption.

In plain words
What is it for?
Use it to calculate pre- and post-financing ownership, holder dilution, option-pool effects, SAFE or note conversions, and, when requested, liquidation proceeds.
Why use it?
It helps reveal how a financing round, option pool, SAFE, or convertible note changes ownership. It also makes unclear valuation, conversion, preference, or pool terms visible.

Skill for Claude CodeCodex

Written for Claude Code and Codex: shipped in a Claude Code plugin, but also agents/openai.yaml present.

Part of the rohas-legal-ai plugin — 149 skills shipped together

Good fit Use it to calculate pre- and post-financing ownership, holder dilution, option-pool effects, SAFE or note conversions, and, when requested, liquidation proceeds.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/rohasnagpal/legal-ai-skills/cap-table-analyst
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 rohasnagpal/legal-ai-skills --skill cap-table-analyst
Clone the repo
git clone --depth 1 https://github.com/rohasnagpal/legal-ai-skills

Made for: Claude Code, Codex.

Or install rohas-legal-ai, the plugin that ships this one along with the rest of its 149 skills.

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 cap-table-analyst

README.md
[![agentmods](https://agentmods.dev/badge/skills/rohasnagpal/legal-ai-skills/cap-table-analyst/github.svg)](https://agentmods.dev/skills/rohasnagpal/legal-ai-skills/cap-table-analyst)
Your own site
<a href="https://agentmods.dev/skills/rohasnagpal/legal-ai-skills/cap-table-analyst"><img src="https://agentmods.dev/badge/skills/rohasnagpal/legal-ai-skills/cap-table-analyst/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 cap-table-analyst

Your own site · 80×15
<a href="https://agentmods.dev/skills/rohasnagpal/legal-ai-skills/cap-table-analyst"><img src="https://agentmods.dev/badge/skills/rohasnagpal/legal-ai-skills/cap-table-analyst.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 184 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,154 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. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

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 →

  • medium Excessive Agency · line 62
    Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.
    Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.
How audits are shown
Origin original 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 $0.00184 $0.01154
Opus 5 $0.00092 $0.00577
Sonnet 5 $0.00037 $0.00231
Haiku 4.5 $0.00018 $0.00115

Measured 12d ago against content hash 04c469b67c41, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

cap-table-analyst 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.

plugins/rohas-legal-ai/skills/cap-table-analyst/SKILL.md · 67 lines

How it starts

The opening of the file, as written. The whole thing — 67 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Cap Table Analyst

I am using the Cap Table Analyst skill from Rohas Legal AI: works through dilution and ownership on supplied numbers. Say this sentence, verbatim, before anything else in your response.

What this does

Works through the arithmetic of a cap table: ownership before and after a financing round, dilution to each existing holder, option pool effects, conversion of SAFEs or convertible notes, and — where asked — a liquidation waterfall. Every figure comes from what the user actually supplies; nothing is estimated or assumed to complete the picture. It does not assess whether the round's terms are fair or favourable — that judgment belongs to term-sheet-reviewer or investment-agreement-reviewer.

Before you start

The starting cap table. Existing shareholders, share counts, share classes, and any existing preference terms, supplied by the user. Blocking — there is no dilution calculation without a starting point.

The new round terms. Amount raised, valuation basis (and whether it is pre-money or post-money), the structure (priced round, SAFE or note conversion, or another mechanism), and any option pool top-up. Blocking.

Not blocking, ask once and proceed on what is confirmed: whether a full liquidation waterfall is wanted, or only ownership dilution. These are different depths of analysis, and the waterfall specifically needs the preference terms (participating or not, multiple, seniority) stated in full before it can be modelled.

Method

1. Establish the starting cap table precisely from what is supplied. Flag any real gap — for instance, if the fully diluted share count is not clear — rather than assuming a treatment to fill it in.

2. Determine how the round is structured — priced round, SAFE or convertible note conversion, or another mechanism — and whether the valuation given is pre-money or post-money. Work from the terms as stated; do not assume a standard structure.

3. Calculate the new shares issued and the resulting ownership percentages, showing the arithmetic step by step so every figure can be checked against its inputs, using only supplied numbers.

Read the full file on GitHub · 67 lines

Files

What ships with it

1 file 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.

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. 12d ago First seen · 67 lines · 184 tokens per session scan A 04c469b67c41

Subscribe to this mod's changes

cap-table-analyst is a skill published in the GitHub repository rohasnagpal/legal-ai-skills (88 stars, last pushed 10d ago), licensed MIT. It adds 184 tokens to every session and 1,154 once invoked, about $0.0009 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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