Define MIN_INTERVAL_SECS, MAX_INTERVAL_SECS, and MAX_ACTIVE_RECURRING constants with documented rationale

[thegreatfeez]

Smart Contract — New Feature

Summary

The recurring feature needs well-defined constants for the minimum and maximum interval, and the active schedule cap. This adds them with documented rationale beside the existing validation constants.

Background

The contract in contracts/accord/src/lib.rs already defines validation constants like MIN_AMOUNT and MAX_ACTIVE_PROPOSALS. Recurring schedules need MIN_INTERVAL_SECS, MAX_INTERVAL_SECS, and MAX_ACTIVE_RECURRING with comments explaining why each value was chosen.

What Needs to Be Done

1. Add MIN_INTERVAL_SECS, MAX_INTERVAL_SECS, and MAX_ACTIVE_RECURRING constants near the existing validation constants.
2. Write a documentation comment beside each explaining the rationale (e.g. minimum interval prevents spam, maximum interval bounds the payback period, active cap limits storage cost).
3. Choose sensible defaults that align with the proposal model's existing cap.

Acceptance Criteria

• The three constants are defined and documented.
• The rationale for each value is explained in a code comment.
• The contract compiles with the new constants.

Files to Look At

• contracts/accord/src/lib.rs — add the constants in the validation constants section

Difficulty: Easy

[devgbmuyiwa]

@devgbmuyiwa has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

Kindly assign me to this issue.
I can work on it.

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

[Musab1258]

@Musab1258 has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

Hello maintainer,

I recently came across your project and would love to work on this issue. Could you please assign it to me?

I am a full-stack developer with hands-on experience building responsive, user-friendly interfaces, robust backends, and smart contracts.

My specific technical experience includes:

• Frontend: Building intuitive, responsive UIs (e.g., with React).
• Smart Contracts & Blockchain: Writing secure, scalable decentralized logic.
• Backend: Developing reliable server-side systems to tie everything together.

I enjoy writing clean, scalable code and am highly focused on improving overall user experience. I am a fast learner, highly motivated, and available to get started immediately.

I would appreciate the opportunity to contribute to your team and would be glad to discuss the next steps. Thank you for your time and consideration.

Best regards,

Musab Habeeb

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Musab1258 to this issue.

[drips-wave]

Congratulations, @Musab1258! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on August 31, 2026.

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