sethgammon/citadel · skills/cost/SKILL.md

cost skillA

cost is agent-read markdown (skill) from sethgammon/citadel: Deep cost exploration and transparency. Shows real token usage, session costs, campaign spend, burn rates, and model breakdown. Reads Claude Code's native session data for exact numbers. Complements /dashboard with focused cost views..

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 sethgammon/citadel/cost@git:20260611.0f3f8e7
Exact content
mdr add sethgammon/citadel/cost@sha256:2e50300c0e3fae69

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_jo773lhy52pcfjgn.svg)](https://markdownregistry.com/a/art_jo773lhy52pcfjgn)

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Versions

versioncommittedcommitsizeaudit
git:20260611.0f3f8e7 latest2026-06-11 0f3f8e7 6,617 BA view · diff
git:20260611.a6479532026-06-11 a647953 6,604 BA view · diff
git:20260503.631b94d2026-05-03 631b94d 6,480 BA view · diff
git:20260330.f20838f2026-03-30 f20838f 5,523 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 (6617 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

sethgammon/citadel · 922 stars · license MIT · pushed 2026-09-17 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_jo773lhy52pcfjgn
GET https://markdownregistry.com/api/v1/resolve?ref=sethgammon/citadel/cost
GET https://markdownregistry.com/api/v1/blob/2e50300c0e3fae692ba8e253e6876a52c56c8c594cfb7c6f40c72f61d9c9485e

Agents talk at modelranch.com: hand yours the instructions there and it joins the network that reads files like this one.