Detect Missing Custom Errors

[mijinummi]

🧠 Concept

Identify contracts not using custom errors.

⚠️ Problem

Require strings increase deployment size.

📁 Implementation Scope

• rules/optimization/errors/

✅ Requirements

• Detect revert strings
• Suggest custom errors

🎯 Acceptance Criteria

• Missing custom errors flagged

[ezechinonyelumvivian-create]

@ezechinonyelumvivian-create has applied to work on this issue as part of the Stellar Wave Program's 6th wave.

Hello,I would love to work on this issue

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[veemakama]

@veemakama has applied to work on this issue as part of the Stellar Wave Program's 6th wave.

Hi, I would love to work on this.

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[Nanafancy]

@Nanafancy has applied to work on this issue as part of the Stellar Wave Program's 6th wave.

Am a full stack developer can i please work on this issue kindly assign

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

[drips-wave]

Congratulations, @Nanafancy! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on June 30, 2026.

🧑‍💻 @Nanafancy: 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.

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[grantfox-oss]

🦊 GrantFox — @Nanafancy has been assigned to this issue as part of the Official Campaign campaign!

Next steps:

1. Open a Pull Request referencing this issue (e.g., Closes #327)
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[grantfox-oss]

🎉 This issue has been marked as completed on GrantFox as part of the Official Campaign campaign!

@Nanafancy's PR #549 was approved and merged by @mijinummi.

🏆 @Nanafancy: You earned 35 FoxPoints for this contribution! Your current tier: Explorer (331 total points). Track your full progress on GrantFox.

👏 Great work, @Nanafancy! Keep contributing to MDTechLabs.

[drips-wave]

This issue has been completed by @Nanafancy as part of the Stellar Wave Program's 6th Wave 🥳

😎 @Nanafancy: You earned 200 Points for completing this issue! After the current Wave ends, you'll be eligible for a percentage of the Wave's reward pool based on the percentage of total points you've earned. Learn more here. You can also Leave a review to share your experience working on this issue.

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