cost SKILL.md skillA
cost from sethgammon/citadel is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add sethgammon/citadel/cost@git:20260611.0f3f8e7Pins git:20260611.0f3f8e7 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- sethgammon/citadel
- Path
skills/cost/SKILL.md- Versions recorded
- 4
- Latest version
- git:20260611.0f3f8e7, committed Jun 11, 2026
- First version recorded
- Mar 30, 2026
- Size
- 6,617 bytes
- Repository stars
- 929
- License
- MIT
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.
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
# /cost -- Session & Campaign Cost Explorer
## When to Use
- `/cost` -- current session cost and burn rate
- `/cost today` -- today's total spend
- `/cost week` -- this week's spend
- `/cost campaign {slug}` -- total spend for a specific campaign
- `/cost all` -- lifetime cost summary
- When /do routes "how much", "what's the cost", "spending", "tokens", "burn rate"
## Inputs
Optional arguments parsed from user message:
- `today` -- filter to today's sessions
- `week` -- filter to last 7 days
- `campaign {slug}` -- filter to a specific campaign
- `all` -- show all-time data
- No argument -- show current session
## Protocol
### Step 1: READ REAL DATA
Run the session-tokens.js script to get real token data:
```bash
node scripts/session-tokens.js # current/latest session
node scripts/session-tokens.js --today # today's sessions
node scripts/session-tokens.js --all # all sessions (use for week/all/campaign)
```
Also read:
- `.planning/telemetry/cost-tracker-state.json` for live burn rate
- `.planning/telemetry/session-costs.jsonl` for campaign attribution
- `scripts/pricing.json` to show which pricing is being used
…Read the whole file at its exact version.
How to install
mdr add sethgammon/citadel/cost@sha256:2e50300c0e3fae69The line at the top of this page pins the label git:20260611.0f3f8e7, 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.
[](https://markdownregistry.com/a/art_jo773lhy52pcfjgn)
5 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 4 versions of this file, between Mar 30, 2026 and Jun 11, 2026, about one every 24 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260611.0f3f8e7 latest | 2026-06-11 | 0f3f8e7 | 6,617 B | A | view · diff |
| git:20260611.a647953 | 2026-06-11 | a647953 | 6,604 B | A | view · diff |
| git:20260503.631b94d | 2026-05-03 | 631b94d | 6,480 B | A | view · diff |
| git:20260330.f20838f | 2026-03-30 | f20838f | 5,523 B | A | view |
Audit of the latest version
- 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
sethgammon/citadel · 929 stars · license MIT · pushed 2026-10-30 · 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
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.
More from sethgammon/citadel
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