Cap Table

Deterministic SAFE/priced-round dilution math with rule-pack citations, not LLM arithmetic.

Works with setup

Test report

Verdict
Works with setup
Score
8.8/10
Tested
Jul 14, 2026
Environment
Claude Code 2.x (agent harness)
Upstream re-checked
Aug 10, 2026 · 1bf22f7

Ran all 9 producer scripts for real on a small cap table (1 founder, 1M option pool, one $500K SAFE at a $5M post-money cap) through a Series A scenario: cap-implied SAFE ownership came out to exactly 10.0% (matches hand math), and the priced-round solver correctly netted the YC post-money-cap denominator gotcha that naive LLM arithmetic reliably gets wrong, landing founders at 65.2% post-round with full rule-pack provenance and one counsel-review flag (QSBS date sensitivity). The catch: SKILL.md calls ${CLAUDE_PLUGIN_ROOT}/scripts/founder_context.py at Step 1, which lives outside the cap-table folder — a plain `cp -r skills/cap-table` install breaks on the very first step.

Scored on four weighted criteria — install, triggering, output vs. baseline, docs. How scoring works

  • Installs cleanly 4/5
  • Triggers reliably 5/5
  • Output vs. baseline 9/10
  • Docs & honesty 4/5

What Cap Table does

Runs a 9-script deterministic pipeline (SAFE/note conversion, priced rounds, anti-dilution, option-pool top-ups, Israeli/Delaware flips) that turns a founder's SAFE, term sheet, or Carta export into cited dilution math and a counsel-handoff packet. Triggers only when the user has actual cap-table content and asks to model conversion, dilution, or a flip — explicitly not on general fundraising or term-glossary questions. Ships as part of a Claude Cowork/Code plugin; a bare skill-folder copy is missing the shared founder_context.py script it calls at startup.

How to install Cap Table

git clone https://github.com/lool-ventures/founder-skills
cd founder-skills
mkdir -p ~/.claude/skills
cp -r founder-skills/skills/cap-table ~/.claude/skills/cap-table

Skills live in ~/.claude/skills/ (global) or .claude/skills/ (per-project). Restart Claude Code after installing.

Commands — how to trigger Cap Table

  • /cap-table Deterministic SAFE/priced-round dilution math with rule-pack citations, not LLM arithmetic.

It also activates on plain-language prompts like these:

  • Model our Series A dilution with the existing SAFE notes
  • Calculate founder ownership after this priced round closes
  • Run our cap table through a 10% option pool top-up scenario

Frequently asked questions

Is the Cap Table skill free?
Yes. The skill itself is free from lool-ventures/founder-skills. SkillProof publishes the install command and an independent test verdict at no cost.
Does Cap Table work with Claude Code?
We tested it with Claude Code 2.x (agent harness) on Jul 14, 2026. Verdict: Works with setup. Ran all 9 producer scripts for real on a small cap table (1 founder, 1M option pool, one $500K SAFE at a $5M post-money cap) through a Series A scenario: cap-implied SAFE ownership came out to exactly 10.0% (matches hand math), and the priced-round solver correctly netted the YC post-money-cap denominator gotcha that naive LLM arithmetic reliably gets wrong, landing founders at 65.2% post-round with full rule-pack provenance and one counsel-review flag (QSBS date sensitivity). The catch: SKILL.md calls ${CLAUDE_PLUGIN_ROOT}/scripts/founder_context.py at Step 1, which lives outside the cap-table folder — a plain `cp -r skills/cap-table` install breaks on the very first step.
What is the Cap Table SkillProof Score?
8.8/10 — installs cleanly 4/5, triggers reliably 5/5, output vs. baseline 9/10, docs & honesty 4/5.
How do I install Cap Table?
Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.
Can I use Cap Table with Cursor, Copilot, Gemini CLI, Codex or other AI tools?
The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.