# Tip Jar

> ⚠️ **Experimental — generated with no human supervision** by the daily MCP pipeline to exercise gno tooling. Not audited. See [r/moul/x/daily](https://github.com/moul/gno-contracts/blob/main/r/moul/x/daily/README.md).

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A public tip jar realm: anyone can send real ugnot with an optional message via Tip, and the realm tracks a leaderboard of the most generous tippers plus a feed of recent tips, both rendered live in Markdown. Only the deployer (captured as owner at deploy time) can withdraw the accumulated balance. It's a small, complete example of the payment-guard pattern (OriginSend + IsUserCall) paired with a sorted avl.Tree leaderboard.

Built for gno 0.9.

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Part of **[moul/gno-contracts](https://github.com/moul/gno-contracts)** — moul's versioned gno.land contracts. See the repository for the full catalog, build/test tooling, and usage.

**Dependency graph:**

![gno.land/r/moul/x/daily/tipjar/v0 dependency graph](https://raw.githubusercontent.com/moul/gno-contracts/main/_assets/gno.land/r/moul/x/daily/tipjar/v0/deps.png)

> 🧪 **Highly experimental — potentially vibe-coded.** Not audited; may break, change, or be removed at any time. Do not use with anything of value. Full disclaimer: [DISCLAIMER](https://github.com/moul/gno-contracts/blob/main/DISCLAIMER.md).

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