cbrock84/headcount · plugins/finance/skills/tax/SKILL.md

tax skillA

tax is agent-read markdown (skill) from cbrock84/headcount: Structures the tax questions a growing business faces — corporate income, sales and use, payroll, nexus, and the obligations created by hiring or selling somewhere new. Use this to work out what a new state or country obligates you to, prepare for a tax filing or audit, understand sales tax on your product, or check what a remote hire or new market triggers..

Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.

How to install

Latest version
mdr add cbrock84/headcount/tax@git:20260916.0e7cd01
Exact content
mdr add cbrock84/headcount/tax@sha256:cf6d604e114e0ade

Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_ojfb4wgtzsuvrcbz.svg)](https://markdownregistry.com/a/art_ojfb4wgtzsuvrcbz)

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Versions

versioncommittedcommitsizeaudit
git:20260916.0e7cd01 latest2026-09-16 0e7cd01 3,915 BA view · diff
git:20260901.39852182026-09-01 3985218 3,576 BA view · diff
git:20260829.4a2c1332026-08-29 4a2c133 3,576 BA view

Audit of the latest version

A  17 of 17 checks passed. Deterministic, no model, 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 (3915 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

cbrock84/headcount · 1,590 stars · license MIT · pushed 2026-09-17 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_ojfb4wgtzsuvrcbz
GET https://markdownregistry.com/api/v1/resolve?ref=cbrock84/headcount/tax
GET https://markdownregistry.com/api/v1/blob/cf6d604e114e0ade016bf9c3967eac1ee8b11cdf6acd8826e2c1af507146a473