Works with the AI tools you already use

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

    Optimistic Lock Contract Repair

    1

    Repair optimistic-concurrency drift in a repository using Cursor.

    $6.99

    Secure checkout via Stripe

    30-day refund guarantee

    Converts to your local currency at checkout

    0 installsSecurity scanned
    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.

    What you get

    Detect and fix lost updates in API and ORM layers.Synchronize version fields between database schemas and API responses.Implement ETag and If-Match header logic for concurrent writes.Add deterministic local tests for race condition verification.

    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.

    How to install

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

    ~30 seconds
    1. 1

      Download the ZIP

      Free skills download straight away. Paid skills unlock right after purchase.

    2. 2

      Unzip into your skills folder

      Every agent reads skills from one folder on your machine. Drop the unzipped folder in there.

    3. 3

      Ask your agent to use it

      Restart the agent if it was already running. It picks the skill up automatically - no config needed.

    Skills folder by agent

    Click the path to copy it. Create the folder if it does not exist yet.

    Reviews

    No reviews yet

    Be one of the first to try it. Every listed skill passes our trust checks below.

    Security scanned

    Passed our 8-point scan before listing

    Fresh listing

    Recently published to Agensi

    30-day refund

    Not a fit? Get your money back

    Trust & safety

    Security scanned

    Verified clean 29 days ago

    • Passed all security checks, Safe to install

    Listed29 days ago
    Updated22 days ago

    Frequently Asked Questions