cap-table-manager SKILL.md skillA

cap-table-manager from skillmedev/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add skillmedev/skills/cap-table-manager@git:20260705.a28c4ce

Pins git:20260705.a28c4ce in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
skillmedev/skills
Path
skills/cap-table-manager/SKILL.md
Versions recorded
2
Latest version
git:20260705.a28c4ce, committed Jul 5, 2026
First version recorded
Jul 5, 2026
Size
2,996 bytes
Repository stars
19
License
MIT

Use when a founder needs to understand or model ownership and dilution. Triggers on "model my cap table", "how much will I be diluted", "option pool", "SAFE conversion", "post-money vs pre-money", "what do I own after this round", "pro rata". Turns equity from a black box into a model the founder controls.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Cap Table Manager

Founders lose more value to cap-table mistakes they did not model than to
valuation they negotiated badly. This skill makes dilution legible: you should
be able to state what you own after the next two rounds, and why.

## When to use this skill

Use it during [[fundraising-stage-selector]] to pressure-test dilution, before
signing any SAFE or term sheet, and whenever someone says "we'll just expand the
pool." Pair instrument mechanics with [[safe-vs-priced-round]].

## The mechanics that actually move ownership

### Pre-money vs post-money
- Post-money valuation = pre-money + new investment.
- Investor ownership = investment ÷ post-money. ($2M into $8M pre => $10M post
  => 20% to investors.)
- Modern SAFEs (post-money SAFEs) lock the investor's percentage; founders
  dilute *around* them when later money comes in. Know which kind you signed.

### The option pool shuffle
- Investors usually require the new option pool to be carved out of the
  *pre-money* - so founders, not investors, bear its dilution.
- A "20% pool on a $10M post" can quietly cost founders several points. Model
  the pool inside the pre-money and negotiate its size to the actual hiring plan
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add skillmedev/skills/cap-table-manager@sha256:2cbc19b81ccad402

The line at the top of this page pins the label git:20260705.a28c4ce, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_577f23ntu2rdczqg.svg)](https://markdownregistry.com/a/art_577f23ntu2rdczqg)

2 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 2 versions of this file, all committed on Jul 5, 2026.

versioncommittedcommitsizeaudit
git:20260705.a28c4ce latest2026-07-05 a28c4ce 2,996 BA view · diff
git:20260705.acb55712026-07-05 acb5571 3,000 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (2996 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

skillmedev/skills · 19 stars · license MIT · pushed 2026-10-13 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_577f23ntu2rdczqg
GET https://markdownregistry.com/api/v1/resolve?ref=skillmedev/skills/cap-table-manager
GET https://markdownregistry.com/api/v1/blob/2cbc19b81ccad4026226cd05ca5841920e6dd262dd9c756ae539d7d265ac0157

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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