--- id: AojdevStudio/Finance-Guru/formula-protection version: "29ef8fed" license: NOASSERTION install: manual updated: 2026-07-27 --- # Formula Protection — A guardrail skill that blocks unintended changes to critical formulas in Google Sheets portfolio trackers, preserving data integrity across auto-calculated columns. Permits only safe operations like wrapping errors with IFERROR, correcting broken sheet references, and expanding formula ranges as data grows. Publisher: AojdevStudio · Stars: 315 · Updated: 2026-07-27 Install (manual): `git clone https://github.com/AojdevStudio/Finance-Guru` *Unlicensed repository - metadata only, no file contents reproduced.* [View on SkillFed](https://skillfed.io/AojdevStudio/Finance-Guru/formula-protection) · [View on GitHub](https://github.com/AojdevStudio/Finance-Guru)