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    Repair Quota Enforcement Races

    1

    Repair quota races that let concurrent requests exceed seats, projects, storage, credits, jobs, or other SaaS limits.

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    Repair Quota Enforcement Races

    Repair Quota Enforcement Races

    Example session with this skill installed

    Users are exceeding their 5-project limit when they click 'create' rapidly. We use Node.js, PostgreSQL, and Redis. Fix the race condition in the project creation flow.

    • Read your context and instructions
    • Compiled the repair quota enforcement

    I have implemented atomic quota enforcement for project creation.

    • Added a conditional UPDATE to the quotas table to increment used only if used < limit.
    • Integrated a reservation ledger to track pending creations.
    • Added a contention test confirming zero oversubscription.

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

    About this skill

    The problem

    Standard check-then-act logic fails under concurrency. Distributed workers and retries often cause oversubscription of seats, storage, or credits because individual requests pass limit checks before the database reflects other pending operations.

    What it does

    • Detects check-then-act races in distributed services and concurrent workers.
    • Implements atomic quota claims using conditional updates, durable reservations, and idempotency ledgers.
    • Prevents duplicate consumption from retries or message redelivery using stable operation identities.
    • Builds reconciliation workers to sync counters with authoritative resource states.
    • Handles plan downgrades and limit version fencing to prevent stale policy enforcement.

    Why this beats prompting it yourself

    Concurrency bugs are notoriously difficult to reproduce and fix with generic prompts. This tool uses deterministic contention testing and strict reservation lifecycle rules to ensure quotas remain accurate even during worker crashes or network timeouts. It enforces a formal quota contract rather than just suggesting a mutex.

    Use cases

    • Preventing seat over-allocation in SaaS multi-tenant environments.
    • Enforcing AI credit limits across parallel API requests.
    • Managing concurrent job slots in distributed worker queues.
    • Synchronizing variable storage quotas during long-running file uploads.

    Known limitations

    Does not define business pricing, billing policies, or grace periods. Requires an authoritative source for limits and resources.

    Find more skills like this on the Claude Skills Marketplace, the Codex Skills Marketplace and the Gemini Skills Marketplace, or browse Claude Skills for Agents & Orchestration.

    Does not define business logic like pricing or billing cycles. Requires a database or cache capable of atomic operations. Cannot repair eventually consistent replicas without a central authority.

    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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    Permissions

    Terminal / Shell
    Read Files
    Write Files

    Permissions are limited to the active local workspace. They are used to inspect user-supplied or local project 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

    This skill identifies and fixes 'check-then-act' race conditions where concurrent requests bypass your limits, ensuring your SaaS seats, storage, and AI credits remain accurate under heavy load.

    The skill provides production-ready logic for atomic quota claims, durable reservations, and idempotency ledgers that integrate with PostgreSQL, Redis, and most distributed database environments.

    Yes, the skill is designed to handle distributed worker crashes and network timeouts by using stable operation identities and reconciliation workers to keep counters in sync.

    You receive the complete logic for detecting contention, implementing reservation lifecycle rules, and building reconciliation workers to sync authoritative resource states.

    While the skill enforces the technical limits, it does not define your business pricing, billing tiers, or grace period policies; these must be provided by your authoritative system.

    New in Agents & Orchestration