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enhancement(contract): validate submit_apy_prediction input and manage its storage TTL #980

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Description

@Abidoyesimze

Problem

submit_apy_prediction accepts any ApyPrediction: the protocol symbol is not checked against the supported set, and APY and confidence fields are not range-checked. It writes to persistent storage without extending the TTL, so predictions can silently expire, and arbitrary protocol symbols create unbounded keys.

Acceptance criteria

  • Restrict protocol to blend / dex.
  • Range-check numeric fields (bps ≤ 10_000, etc.).
  • Extend TTL on write, and emit an event so off-chain consumers can index predictions.
  • Tests for invalid input.

Activity

  1. Ade-Pheebs commented on Oct 15, 2026

    @Ade-Pheebs

    @Ade-Pheebs has applied to work on this issue as part of the Stellar Wave Program's 10th wave.

    maintainer can you please assign me to this issue?

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

  2. k-deejah commented on Oct 15, 2026

    @k-deejah
    Contributor

    @k-deejah has applied to work on this issue as part of the Stellar Wave Program's 10th wave.

    Hi maintainer, i would like to work on this issue

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

  3. drips-wave commented on Oct 15, 2026

    @drips-wave

    Congratulations, @k-deejah! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on October 22, 2026.

    🧑‍💻 @k-deejah: 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.

    🌊 Happy Wave 🌊

  4. grantfox-oss commented on Oct 23, 2026

    @grantfox-oss

    🎉 This issue has been marked as completed on GrantFox!

    @k-deejah's PR #1010 was approved and merged by @Abidoyesimze.

    🏆 @k-deejah: You earned 40 FoxPoints for this contribution! Your current tier: Builder (2,268 total points). Track your full progress on GrantFox.

    👏 Great work, @k-deejah! Keep contributing to Neurowealth.

  5. drips-wave commented on Oct 23, 2026

    @drips-wave

    This issue has been completed by @k-deejah as part of the Stellar Wave Program's 10th Wave 🥳

    😎 @k-deejah: You earned 200 Points for completing this issue! Once the Wave's rewards are finalized, 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.

    🧑‍💻 Repo maintainers: How'd the contributor do? Leave a review to share your experience working with them.

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