cap-table

A capitalization-table tool for listing who owns a company and how shares, options, warrants, SAFEs, and convertible notes affect ownership. It can also model how a new funding round or sale changes the outcome.

In plain words
What is it for?
Use it to clean up a pre-funding ownership table, model new-round dilution, estimate SAFE or note conversions, assess option-pool changes, price secondary sales, and calculate exit proceeds at different sale prices.
Why use it?
It helps replace manual ownership calculations that can miss dilution, investor rights, or who receives money first in a sale.

Command

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.

agentmods
npx agentmods add commands/brainbytes-dev/everything-claude-finance/cap-table
Clone the repo
git clone --depth 1 https://github.com/brainbytes-dev/everything-claude-finance
Per session 8 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,485 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00008 $0.01485
Opus 5 $0.00004 $0.00743
Sonnet 5 $0.00002 $0.00297
Haiku 4.5 $0.00001 $0.00148

Measured 2d ago against content hash 3c7ac4ebcda4, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

cap-table 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 2d 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.

commands/cap-table.md · 121 lines

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.

/cap-table — Cap Table Analysis

What This Command Does

Builds, analyzes, and models capitalization tables including common stock, preferred stock (with all preference features), options/warrants, convertible instruments, and SAFEs. Models dilution impact of new rounds and produces waterfall analyses for exit scenarios.

When to Use

  • Pre-funding cap table cleanup and modeling
  • New round impact analysis (dilution to existing holders)
  • Exit waterfall calculation (who gets what at various exit prices)
  • SAFE/convertible note conversion modeling
  • Option pool creation or expansion impact
  • Secondary transaction pricing

How It Works

  1. Current State: Maps all outstanding securities — common, preferred (each series), options (vested/unvested), warrants, convertible notes, SAFEs
  2. Rights Mapping: Documents liquidation preferences, participation rights, anti-dilution provisions, conversion ratios
  3. Round Modeling: Applies new investment terms — pre/post-money valuation, option pool shuffle, pro-rata rights
  4. Dilution Analysis: Shows ownership percentages before and after, dilution per stakeholder class
  5. Waterfall Analysis: Calculates distribution at various exit values considering preference stacks

Example Usage

Input:

/cap-table company:"HealthOS" action:model-round round:series-a

Output:

# Cap Table — HealthOS Inc.
## Action: Series A Round Modeling | Date: 2026-03-14

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
## Pre-Money Cap Table (Current State)
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

| Holder              | Shares      | Type          | Ownership |
|---------------------|-------------|---------------|-----------|
| Founder A           | 4,000,000   | Common        | 40.0%     |
| Founder B           | 3,000,000   | Common        | 30.0%     |
| Angel Investors     | 1,000,000   | Common        | 10.0%     |
| SAFE Holders        | (converts)  | SAFE          | ~8.3%     |
| ESOP (allocated)    | 800,000     | Options       | 8.0%      |
| ESOP (unallocated)  | 200,000     | Option pool   | 2.0%      |
| Advisor pool        | 170,000     | Options       | 1.7%      |
| **Fully Diluted**   |**10,000,000**|              | **100.0%**|

Outstanding SAFEs:
- SAFE 1: $500K at $6M cap, no discount (Angel Group Alpha)
- SAFE 2: $300K at $8M cap, 20% discount (Accelerator Beta)

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
## Series A Terms (Proposed)
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

| Term                      | Value                              |
|---------------------------|------------------------------------|
| Pre-money valuation       | $12,000,000                        |
| Investment amount         | $4,000,000                         |
| Post-money valuation      | $16,000,000                        |
| Price per share           | $1.20                              |
| New shares issued         | 3,333,333                          |
| Option pool increase to   | 15% post-money (shuffle)           |
| Liquidation preference    | 1x non-participating               |
| Anti-dilution             | Broad-based weighted average        |

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
## Post-Series A Cap Table
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

| Holder              | Shares      | Type        | Pre-A % | Post-A % | Dilution |
|---------------------|-------------|-------------|---------|----------|----------|
| Founder A           | 4,000,000   | Common      | 40.0%   | 27.6%    | -12.4pp  |
| Founder B           | 3,000,000   | Common      | 30.0%   | 20.7%    | -9.3pp   |
| Angel Investors     | 1,000,000   | Common      | 10.0%   | 6.9%     | -3.1pp   |
| SAFE → Common       | 1,136,111   | Common      | 8.3%    | 7.8%     | -0.5pp   |
| Series A Investor   | 3,333,333   | Pref A      | —       | 23.0%    | New      |
| ESOP (total)        | 2,030,556   | Options     | 10.0%   | 14.0%    | +4.0pp   |
| Advisors            | 170,000     | Options     | 1.7%    | —        | (in ESOP)|
| **Fully Diluted**   |**14,500,000**|            |**100%** | **100%** |          |

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
## Exit Waterfall (1x Non-Participating Pref)
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

| Exit Value ($M) | Series A   | Founders   | Angels/SAFEs | ESOP     |
|-----------------|------------|------------|--------------|----------|
| $8M             | $4.0M (pref)| $2.5M     | $0.8M       | $0.7M    |
| $16M (1x)       | $4.0M→conv | $4.4M     | $2.4M       | $2.2M    |
| $30M            | $6.9M      | $8.3M     | $4.4M       | $4.2M    |
| $50M            | $11.5M     | $13.8M    | $7.4M       | $7.0M    |
| $100M           | $23.0M     | $27.6M    | $14.7M      | $14.0M   |

Note: Series A converts to common at exit values where conversion
yields more than 1x preference ($17.4M+ exit).

Read the full file on GitHub · 121 lines

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. 2d ago First seen · 121 lines · 8 tokens per session scan A 3c7ac4ebcda4

Subscribe to this mod's changes

cap-table is a command published in the GitHub repository brainbytes-dev/everything-claude-finance (5 stars, last pushed 5mo ago), licensed MIT. It adds 8 tokens to every session and 1,485 once invoked, about $0.0000 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.