Smart Contract: Security - Handle Failed Swaps

[Tybravo]

🎯 Goal

Implement fallback logic if the AMM lacks liquidity.

📋 Requirements

• Catch swap failures
• Fallback to paying out the original asset directly

📂 Target Directory

Contributors should work within this directory:
contracts/settlement_contract

🔗 Architecture & Dependencies

• Architecture Reference: Smart Contract Architecture Docs
• Dependencies: Implement Slippage Protection

🔧 Technical Scope

• Rust
• Soroban SDK

🌿 Fork & Branch

• Fork the repository
• Branch: git checkout -b sec-failed-swaps

✅ Acceptance Criteria

• All tests must pass successfully
• Test cases pass on testnet

💬 Example Commit Message

feat: implement fallback logic if the amm lacks liquidity.

[jaynomyaro]

@jaynomyaro has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

Hi! I’m a full-stack developer with a strong blockchain background. I’d love to handle this issue and can deliver a clean, reliable solution. Kindly assign it to me.

ℹ️ Repo Maintainers: To accept this application, review their application or assign @jaynomyaro to this issue.

[Agbeleshe]

@Agbeleshe has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

Hi, I would love to fix this. I have worked on similar tasks before and can provide a clean implementation with appropriate tests and documentation where needed. I can start immediately.

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Agbeleshe to this issue.

[MerlinTheWhiz]

@MerlinTheWhiz has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

Let me handle this. Please assign

ℹ️ Repo Maintainers: To accept this application, review their application or assign @MerlinTheWhiz to this issue.

[binayyub4211]

@binayyub4211 has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

Hey maintainer
Please assign me to work on this issue

ℹ️ Repo Maintainers: To accept this application, review their application or assign @binayyub4211 to this issue.

[drips-wave]

Congratulations, @Agbeleshe! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on June 2, 2026.

🧑‍💻 @Agbeleshe: Please resolve the issue such that the repo's maintainers have enough time to review your contribution before the due date. You'll earn Points for completing the issue on-time, which will make you eligible for a share of the Stellar Wave Program's reward pool.

Warning

When opening a PR, please link it to this issue to ensure it gets tracked accurately. Points are awarded when this issue is marked as completed by the maintainer.

🤠 Repo maintainers: Please keep an eye on the contributor's progress and review their work before the due date. You can manage this issue, including adjusting its complexity and points, here.

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