Deep Link Contract Repair

    by Mariusz Wrzeszczynski

    1

    Repair deep-link drift across web, iOS, Android, auth handoffs, route parameters, fallbacks, manifests, tests, and documentation.

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    Works with the AI tools you already use

    CClaude CodeCCursorCCodex CLIGGitHub CopilotGGemini CLIVVS CodeWWindsurfMManus+14 more

    See it in action

    You say

    iOS universal links are opening the app but landing on the home screen instead of the product page. Web uses /p/:slug but the app expects /product/:id. Repair the drift locally.

    Your agent does

    Created a canonical route registry mapping 'product_detail' to both web and mobile patterns. Added a navigation intent handler to retain the validated route during cold-starts. Updated the iOS associated-domain fixtures and added a test suite for path-to-ID parameter conversion.

    What you get

    Sync web and mobile route registries to eliminate path disagreement.Preserve validated navigation intents across authentication handoffs.Prevent open-redirect vulnerabilities in passwordless and magic-link flows.Implement idempotent consumption for deferred-link referral events.Audit Android manifests against application parsers to find overmatch gaps.

    About this skill

    The problem

    Deep-link behavior often drifts across platforms, causing universal links to land on Home, auth handoffs to lose destinations, and legacy URLs to fail. Managing disparate route registries for web, iOS, and Android without a canonical contract leads to broken navigation and security risks like open redirects.

    What it does

    • Identifies and repairs routing drift between web route registries and mobile navigation configurations.
    • Fixes authentication handoffs to ensure users reach their intended destination after login or magic-link consumption.
    • Resolves parameter encoding issues and double-decoding bugs across different platform URI parsers.
    • Normalizes legacy route aliases to map directly to canonical intents without recursive redirect loops.
    • Synchronizes repository-based platform configurations like AASA templates, Android manifests, and assetlinks fixtures.

    Frameworks & tools

    React Native, Expo, Flutter, iOS (universal links, custom schemes), Android (App Links, intent filters), Next.js, and hybrid-app frameworks.

    Why this beats prompting it yourself

    This skill traces the entire link lifecycle from producer to consumer, handling edge cases like cold-start vs. warm-start navigation and deferred-link idempotency. It enforces a strict "decode once" boundary and tenant-safe resolution that generic prompts often overlook, preventing security regressions.

    Use cases

    • Fixing iOS universal links that open the app but fail to navigate to the specific content.
    • Ensuring locale and campaign context survive the app-install process via deferred links.
    • Hardening authentication callbacks to prevent arbitrary "next" URL redirects to untrusted hosts.
    • Consolidating analytics route naming so web and mobile events share a stable identity.

    Known limitations

    Does not access live DNS, app store consoles, or production identity providers. It cannot verify if a live domain is correctly associated with an installed production app.

    How to install

    Drop the file into your AI Agent. Works with Claude, Cursor, ChatGPT, and 20+ more.

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    Creator

    Mariusz Wrzeszczynski
    Mariusz Wrzeszczynski

    109 skills on Agensi

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