cbrock84/headcount · plugins/finance/skills/cost-accounting/SKILL.md

cost-accounting skillA

cost-accounting is agent-read markdown (skill) from cbrock84/headcount: Establishes what something actually costs — fixed, variable and mixed cost behavior, absorption versus variable costing, job-order, process and activity-based methods, breakeven and operating leverage, and price/volume/mix decomposition. Use this to set a price floor, explain why revenue or margin moved, decide make versus buy, judge whether a product line earns its place, or work out how an allocation basis is distorting a reported margin..

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/cost-accounting@git:20260916.e72e404
Exact content
mdr add cbrock84/headcount/cost-accounting@sha256:88feb85ae659d895

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_u4n3rngjiixkq7kw.svg)](https://markdownregistry.com/a/art_u4n3rngjiixkq7kw)

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Versions

versioncommittedcommitsizeaudit
git:20260916.e72e404 latest2026-09-16 e72e404 4,540 BA view · diff
git:20260901.26b600b2026-09-01 26b600b 4,201 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 (4540 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_u4n3rngjiixkq7kw
GET https://markdownregistry.com/api/v1/resolve?ref=cbrock84/headcount/cost-accounting
GET https://markdownregistry.com/api/v1/blob/88feb85ae659d8958dea54628a25fb0803d66ad3b546d5b3b87039006f6390ab