yoink SKILL.md skillA
yoink from bankrbot/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add bankrbot/skills/yoink@git:20260130.ac7a0f8Pins git:20260130.ac7a0f8 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- bankrbot/skills
- Path
yoink/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260130.ac7a0f8, committed Jan 30, 2026
- Size
- 3,092 bytes
- Repository stars
- 1,209
- License
- none declared
Play Yoink, an onchain capture-the-flag game on Base. Yoink the flag from the current holder, check game stats and leaderboards, view player scores, and compete for the trophy. Uses Bankr for transaction execution.
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
# Yoink
Play Yoink, an onchain capture-the-flag game on Base. Yoink the flag from the current holder to start your clock. The player with the most total yoinks holds the trophy.
**Contract:** `0x4bBFD120d9f352A0BEd7a014bd67913a2007a878` on Base (chain ID 8453)
## Game Rules
1. **Yoink the flag** - Call `yoink()` to take the flag from the current holder
2. **Cooldown** - You must wait 10 minutes (600 seconds) between yoinks
3. **No self-yoink** - You cannot yoink from yourself
4. **Accumulate time** - While you hold the flag, your time score increases
5. **Compete for trophy** - The player with the most total yoinks holds the trophy (token ID 2)
6. **Track yoinks** - Your total yoink count is tracked separately from time
## Contract Interface
**RPC template:**
```bash
curl -s -X POST https://mainnet.base.org -H "Content-Type: application/json" \
-d '{"jsonrpc":"2.0","method":"eth_call","params":[{"to":"0x4bBFD120d9f352A0BEd7a014bd67913a2007a878","data":"SELECTOR+PARAMS"},"latest"],"id":1}' | jq -r '.result'
```
| Function | Selector | Params | Returns |
|----------|----------|--------|---------|
| `yoink()` | `0x9846cd9e` | - | (write) |
…Read the whole file at its exact version.
How to install
mdr add bankrbot/skills/yoink@sha256:e84ca789803084a9The line at the top of this page pins the label git:20260130.ac7a0f8, 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_umbnmed5qvzpfdz4)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Jan 30, 2026.
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 (3092 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
bankrbot/skills · 1,209 stars · license none declared · pushed 2026-11-04 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_umbnmed5qvzpfdz4 GET https://markdownregistry.com/api/v1/resolve?ref=bankrbot/skills/yoink GET https://markdownregistry.com/api/v1/blob/e84ca789803084a93606736db081a293c9f8415f42799fdf569565cfbbe5ec10
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.