File, Import & Export Reliability
Protect file and data-transfer workflows from upload through import, export, delivery, and cleanup. This bundle covers file-upload contracts, upload implementation, signed-URL expiry, customer-export verification, stable export snapshots, CSV import contracts, rerunnable imports, and soft-delete leakage. Use it when files or bulk data can disappear, duplicate, expire, include stale records, or become impossible to reconcile safely.
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
Repair file-upload drift across validation, object keys, authorization, quarantine, scanning, finalization, retries, downloads, cleanup, tests, and docs.
Automatically add secure file uploads to existing apps.
Repair presigned upload and download URLs that expire too early, fail behind proxies, reject valid headers, or remain usable longer than intended.
Verify SaaS customer data exports before account closure, migration, or delivery.
Repair long-running exports that produce missing, duplicate, mixed-version, or inconsistent rows when source data changes mid-run.
Repair CSV and spreadsheet import drift across encoding, headers, mappings, types, row identity, validation, retries, partial success, and cleanup.
Repair fragile CSV, JSON, API, and database import scripts so they can be rerun safely.
Repair apps where deleted records reappear in searches, exports, relations, counts, jobs, or APIs.
See it in action
File Upload Contract Repair
Example session with this skill installed
Repair the file upload lifecycle in our Django app. We currently trust browser MIME types, use filenames as keys, and files are available before the Celery scan task finishes.
- Read your context and instructions
- Compiled the file upload contract
I have mapped your upload drift. I will now add an 'uploaded_pending_verification' state to the File model, implement opaque key generation in the storage adapter, and update the scan callback to use atomic versioned updates. Safe local patches and dry-run cleanup tests are ready for review.
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
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- 3
Ask your agent to use it
Restart the agent if it was already running. It picks the skill up automatically - no config needed.
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