# Check Vault Onchain > Check our feature flagging against an onchain vault Use when this capability is needed. - Skill: `tomevault-io/check-vault-onchain` (Agent Skill, multi-file: 2 files) - Install (CLI): `npx skillmds@latest add tomevault-io/check-vault-onchain` - Raw SKILL.md: https://api.skillmd.com/api/skills/tomevault-io/check-vault-onchain/raw - Safety review: pending (external: skill-scanner PASS, skillspector PASS) - Works with: Claude Code, Claude.ai, OpenAI Codex - Category: Coding & Dev Tools - Author: tomevault-io (https://skillmd.com/u/tomevault-io) - Updated: 2026-09-17 - Page: https://skillmd.com/skills/tomevault-io/check-vault-onchain --- # Check vault onchain This script will run against a deployed smart contract and see if it detects out as one of our supported vaults. This skill will run a Python script and get you the output back. ## Required inputs 1. Smart ctonract chain and address: User gives this either a link (check the page and blockchain explorer) or directly ## Script source Get the script source code from `scripts/erc-4626/check-vault-onchain.py ## Running the script Clone the script and replace `spec` to be the correct chain id and vault address string. Then run the generated script using `python` console command. ## Display output Send all the script output back to the user, format as a table. --- > Converted and distributed by [TomeVault](https://tomevault.io/claim/tradingstrategy-ai) — claim your Tome and manage your conversions.