chobo SKILL.md skillA
chobo from i2y/ritsu is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add i2y/ritsu/chobo@git:20261104.5b400fcPins git:20261104.5b400fc in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- i2y/ritsu
- Path
skills/chobo/SKILL.md- Versions recorded
- 9
- Latest version
- git:20261104.5b400fc, committed Nov 4, 2026
- First version recorded
- Oct 4, 2026
- Size
- 19,045 bytes
- Repository stars
- 3
- License
- Apache-2.0
Write, check and build chobo books (`.book` files), a small language for the things counted and moved between accounts (stock, money, points, seats), whose only conditions are the lower and upper bounds of accounts, each kept in one write on PostgreSQL, TigerBeetle or a database of the MySQL family (MySQL, TiDB, Vitess). Use when stock has to be reserved without selling more than there is, a wallet or points kept from going below 0, refunds kept within the sale, a payment split between parties…
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
## When this applies The job is a **quantity that moves between accounts and must stay within bounds**: stock that orders reserve and shipments take, a wallet that payments draw on, points earned and spent, seats of a day, what is left to refund on an order, a shop's balance that sales fill and payouts empty. Two orders after the last item at the same moment, a refund retried twice, a hold nobody ended: chobo writes the code where those go wrong, from a book a person can read. It does not apply to computing amounts: a fee, a rate, a rounding. A book moves amounts it is given; the caller works them out, or a rulec rule does (rulec has a skill of its own). Nor to the steps of a process (wait, retry, ask a person): that is a workflow, which dandori writes and which calls the book's transfers as tasks. Nor to a general ledger: a balance in chobo is what came in less what went out, not debits and credits. The files bundled with this skill are listed in §8. Read them when you need them, not all up front. --- # Working with chobo Your part is to write the `.book`, get it past `ritsu chobo check`, and build it. Two things stay with people: …
Read the whole file at its exact version.
How to install
mdr add i2y/ritsu/chobo@sha256:b68c43178605b59bThe line at the top of this page pins the label git:20261104.5b400fc, 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_mh2q4aqkrzvypnrs)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 9 versions of this file, between Oct 4, 2026 and Nov 4, 2026, about one every 4 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261104.5b400fc latest | 2026-11-04 | 5b400fc | 19,045 B | A | view · diff |
| git:20261103.15fe5b0 | 2026-11-03 | 15fe5b0 | 18,745 B | A | view · diff |
| git:20261103.ab10e93 | 2026-11-03 | ab10e93 | 18,224 B | A | view · diff |
| git:20261103.ede945c | 2026-11-03 | ede945c | 18,050 B | A | view · diff |
| git:20261023.ab8f92e | 2026-10-23 | ab8f92e | 17,533 B | A | view · diff |
| git:20261017.4ad48ee | 2026-10-17 | 4ad48ee | 16,850 B | A | view · diff |
| git:20261016.092f0a8 | 2026-10-16 | 092f0a8 | 15,847 B | A | view · diff |
| git:20261006.922bf71 | 2026-10-06 | 922bf71 | 15,679 B | A | view · diff |
| git:20261004.634440d | 2026-10-04 | 634440d | 15,418 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 (19045 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
i2y/ritsu · 3 stars · license Apache-2.0 · pushed 2026-11-07 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_mh2q4aqkrzvypnrs GET https://markdownregistry.com/api/v1/resolve?ref=i2y/ritsu/chobo GET https://markdownregistry.com/api/v1/blob/b68c43178605b59b2d23c7aa6ffbd8ba489f9b69914f545d6a89c1fb8fd8e6ee
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.