Data Consistency & Concurrency Repair
Repair the data-consistency failures that appear under retries, replication lag, concurrent edits, partial batches, and uncertain API outcomes. This bundle covers zero-downtime database changes, read-replica consistency, duplicate-write prevention, stale-form overwrite protection, rerunnable imports, reconciliation of unknown API results, partial-batch recovery, and soft-delete leakage. Use it when a system works in simple tests but produces duplicate, stale, partial, or missing state under real load.
Works with every agent that reads SKILL.md — Claude Code, Cursor, Codex CLI, Gemini CLI, GitHub Copilot, Windsurf, OpenClaw, and more.
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What's included
8 skills
Safely prepare database schema changes for live apps without breaking existing code.
Repair stale reads when apps write to a primary database but immediately read from lagging replicas.
Repair duplicate writes, oversold inventory, double charges, and other concurrency bugs in APIs.
Repair stale forms, autosaves, and API clients that silently overwrite newer changes made by another user or process.
Repair fragile CSV, JSON, API, and database import scripts so they can be rerun safely.
Repair API calls that time out after possibly succeeding, leaving payments, orders, or provisioning in an unknown state.
Repair bulk APIs, imports, and workers where one failed item hides successful work or triggers unsafe full retries.
Repair apps where deleted records reappear in searches, exports, relations, counts, jobs, or APIs.
See it in action
Make Database Changes Zerodowntime
Example session with this skill installed
I need to rename the user_email column to email in my Postgres database without any downtime during the deployment.
- Read your context and instructions
- Compiled the make database changes
I have analyzed your schema. To avoid downtime, I created a three-stage plan:
- Add new 'email' column (nullable).
- Update models for dual-writing to both fields.
- Added a resumable backfill script. See the generated migration files in /migrations.
How to install
Works the same in every agent - Claude, Cursor, Codex, Copilot and 20+ more.
- 1
Download the ZIP
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- 2
Unzip into your skills folder
Every agent reads skills from one folder on your machine. Drop the unzipped folder in there.
- 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.
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