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    Optimistic Lock Contract Repair

    1

    Repair optimistic-concurrency drift in a repository using Cursor.

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    Optimistic Lock Contract Repair

    Optimistic Lock Contract Repair

    Example session with this skill installed

    Review our OrderService and the orders table schema to find why concurrent status updates are causing lost updates, then provide a patch using ETags.

    • Read your context and instructions
    • Compiled the optimistic lock contract

    I found that UpdateOrder lacks a version check. I have:

    1. Added a row_version column to the schema.
    2. Updated the Repository to use a WHERE clause with the version.
    3. Added If-Match header support to the API controller.
    4. Created a local test case simulating two concurrent writers.

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

    About this skill

    Repair optimistic-concurrency drift in a repository using Cursor. Compare version fields, ETags, API preconditions, ORM writes, transactions, retries, background jobs, bulk edits, caches, projections, conflict responses, tests, and docs. Detect lost updates, stale-write acceptance, unsafe retries, version gaps, overwritten side effects, and false success responses; prepare bounded patches and tests without production access, merge-policy choices, historical rewrites, migrations, or deployment.

    Find more skills like this on the Claude Skills Marketplace, the Codex Skills Marketplace and the Gemini Skills Marketplace, or browse All Claude Skills.

    • Cannot access live production databases or traffic.
    • Requires user to define business-precedence policies.
    • Cannot guarantee 100% prevention of all race conditions.

    How to use

    1. 1

      Connect your agent to the Agensi MCP

      Copy the prompt and paste it into Claude, ChatGPT, Cursor or any agent that supports MCP. It sets up the connection for you. Manual setup

    2. 2

      Sign in to Agensi

      Your agent shows a sign-in link. Sign in and click Allow.

    3. 3

      Ask for what you need

      Your agent loads this skill and uses it on your task. It always asks before buying a skill.

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    Security scan passed 3 months ago

    Permissions

    Terminal / Shell
    Read Files
    Write Files

    Permissions are limited to the active local workspace and are used to inspect user-supplied or local workspace files; create or modify bounded local fixes, tests, documentation, or review artifacts; run repository-supported local tests, checks, builds, or parsing commands. The skill package does not require bundled credentials, unrestricted external network access, or automatic production changes.

    Listed3 months ago
    Updated9 days ago

    What's inside

    Frequently Asked Questions

    It traces the lifecycle from API headers to DB writes, identifying gaps where stale state overwrites newer data without detection.

    No. It operates strictly on your repository files to generate patches and local tests, keeping your data secure.

    It identifies the drift but requires you to choose the business policy, such as 'last writer wins' or 'client-side merge.'