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    Claude CodeClaude CodeCursorCursorCodex CLICodex CLIGitHub CopilotGitHub CopilotGemini CLIGemini CLI+20 more

    Repair Signed URL Expiry Bugs

    1

    Repair presigned upload and download URLs that expire too early, fail behind proxies, reject valid headers, or remain usable longer than intended.

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    Repair Signed URL Expiry Bugs

    Repair Signed URL Expiry Bugs

    Example session with this skill installed

    My S3 presigned upload URLs are failing with SignatureDoesNotMatch when users upload from our mobile app. Can you fix the signing logic and add a test?

    • Read your context and instructions
    • Compiled the repair signed url

    I have updated the S3 signing service to include the Content-Type header in the canonical request and synced it with the mobile client. I also added a Vitest suite using a fake clock to verify the URL expires exactly after 15 minutes. Updated: s3-signer.ts, upload-service.test.ts.

    Connects securely to your tools. The creator never sees your data.

    What you get

    Fix SignatureDoesNotMatch errors in S3 or GCS uploadsExtend URL expiry safely using server-authorized regenerationResolve header and path mismatches caused by reverse proxies or CDNsAdd deterministic tests for signed URL expiration and lifecycle

    About this skill

    Repair presigned upload and download URLs that expire too early, fail behind proxies, reject valid headers, or remain usable longer than intended.

    This skill traces signing inputs, TTL, clocks, methods, headers, storage, CDN behavior, and client timing. It adds bounded expiry, regeneration, canonical request checks, safe caching, and deterministic tests.

    ✔ Stop mid-flow expiry ✔ Fix signature mismatches ✔ Prevent stale link caching ✔ Verify safe regeneration

    Ideal for SaaS, storage, uploads, and media apps.

    How to install

    Works the same in every agent - Claude, Cursor, Codex, Copilot and 20+ more.

    ~30 seconds
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      Unzip into your skills folder

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      Ask your agent to use it

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    Security scanned

    Verified clean 1 month ago

    • Passed all security checks, Safe to install

    Listed1 month ago
    Updated28 days ago

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