cap-table

cap-table is a skill for Claude Code from lool-ventures/founder-skills. It costs 163 tokens per session (36,161 once invoked), scanned A, original, Apache-2.0.

A cap-table analysis guide for founders. A cap table is a record of who owns what in a company, including the effects of SAFEs, convertible notes, warrants, and funding rounds.

In plain words
What is it for?
It calculates or explains SAFE and note conversions, funding-round dilution, option-pool increases, anti-dilution terms, and company moves between Israel and Delaware.
Why use it?
It helps founders understand ownership changes and dilution before signing financing documents, while flagging tax and legal questions for counsel.

Skill for Claude Code

Written for Claude Code: user-invocable in frontmatter. Also seen: mentions subagents; names the AskUserQuestion tool; positional $N argument.

Runs only inside its plugin — its command needs a path that Claude Code sets for a plugin’s own hooks and for nothing else. Install the plugin, not this.

Part of the founder-skills plugin — 6 skills, 1 command, 6 agents shipped together

Good fit It calculates or explains SAFE and note conversions, funding-round dilution, option-pool increases, anti-dilution terms, and company moves between Israel and Delaware.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.

Claude Code
/plugin marketplace add lool-ventures/founder-skills
Claude Code
/plugin install founder-skills

Made for: Claude Code.

Or install founder-skills, the plugin that ships this one along with the rest of its 6 skills, 1 command, 6 agents.

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

README.md
[![agentmods](https://agentmods.dev/badge/skills/lool-ventures/founder-skills/cap-table.svg)](https://agentmods.dev/skills/lool-ventures/founder-skills/cap-table)
Your own site
<a href="https://agentmods.dev/skills/lool-ventures/founder-skills/cap-table"><img src="https://agentmods.dev/badge/skills/lool-ventures/founder-skills/cap-table.svg" alt="Measured on agentmods" height="20"></a>
Per session 163 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 36,161 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.
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 $0.00163 $0.36161
Opus 5 $0.00081 $0.18080
Sonnet 5 $0.00033 $0.07232
Haiku 4.5 $0.00016 $0.03616

Measured 3d ago against content hash 1644d7c8bdb5, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, 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 3d ago.

The scan reads SKILL.md. This mod also ships 37 executable files (scripts/_artifact_io.py, scripts/_artifact_writer.py, scripts/_cap_table_schema_validator.py, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

founder-skills/skills/cap-table/SKILL.md · 1,242 lines

How it starts

The opening of the file, as written. The whole thing — 1,242 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Cap-Table Skill

Model cap-table mechanics for founders so they understand what their term sheets, SAFEs, and convertible notes actually do to their ownership — before they sign. Produce rule-pack-cited math for SAFE conversion, convertible-note conversion, priced-round dilution, option-pool top-ups, anti-dilution, and Israeli ↔ Delaware flips. Every counsel-review item links back to a primary source (YC SAFE primer, NVCA model docs, Israeli Companies Law / Income Tax Ordinance, etc.). Tone is founder-first: a candid coach who's read the documents you can't be expected to read.

Reliance Boundary (mandatory)

For any eligibility, qualification, or status determination that turns on tax or legal facts the cap-table data cannot settle — QSBS (IRC §1202), Israeli §102 track / holding period, IIA obligations, or any rule carrying counsel_review — state the cited fact (the date window, threshold, or clock) and stop there. Never conclude that the founder does or will qualify ("yes, you qualify", "you're eligible", "strong eligibility posture"). The date or threshold is a fact you may assert with its citation; the conclusion is a counsel determination — present it as such and emit a counsel item. This holds whether the engagement runs the full pipeline, fast-assess, or a one-line directional answer: the boundary is about what you may conclude, not how deep the analysis went.

Skill Metadata

  • Author: lool-ventures
  • Version: managed in founder-skills/.claude-plugin/plugin.json
  • Compatibility: Python 3.10+ and uv for script execution.
  • Rule pack: consumes data/cap-table-rules.json at script runtime.
  • Exports (full pipeline, in cap-table-{slug}/):
    • inputs.json + scenarios.jsonfinancial-model-review (cross-validates revenue/dilution scenarios)
    • cap_state.jsonic-sim (IC partners ask about dilution exposure)
    • counsel_packet.jsonfundraise-readiness (overall readiness scorecard)
    • report.jsonfundraise-readiness, future cross-document-consistency skill
  • Exports (fast-assess mode, in cap-table-{slug}-fastassess/):
    • fast_assess_only.json — sentinel marking that fast-assess ran (no canonical artifacts). See references/sentinel-schema.md. Future cross-skill consumers MUST check for this sentinel before treating a missing canonical artifact as "cap-table never ran."
    • report_fast_assess.md — founder-facing markdown deliverable
  • Imports:
    • market-sizing:sizing.json — sanity-check that the planned raise + cap is consistent with modeled SAM/SOM
    • financial-model-review:report.json — current revenue scale + runway, to gate scenario plausibility

Read the full file on GitHub · 1,242 lines

Files

What ships with it

60 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.

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. 3d ago Changed · +14 lines 1644d7c8bdb5
  2. 8d ago First seen · 1,228 lines · 163 tokens per session scan A 343d26587ca8

Subscribe to this mod's changes

cap-table is a skill published in the GitHub repository lool-ventures/founder-skills (33 stars, last pushed 6d ago), licensed Apache-2.0. It adds 163 tokens to every session and 36,161 once invoked, about $0.0008 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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