If You're Giving Developers AI Tools, You Need Per-User Keys, Audit Logging, and Cost Controls on Day One

Short summary

When deploying AI tools to teams, establish per-user keys, audit logging, and cost controls from day one—these are trivial to build initially but painful to retrofit. Per-user keys prevent rotation disasters when someone leaves or a key leaks; audit logging captures metadata so you can investigate incidents retroactively (you cannot log the past); and per-user spend caps prevent surprise bills. The cost difference: hours upfront versus a coordinated migration under pressure.

• •Per-user keys prevent rotation disasters and enable attribution; shared keys force you to either break everyone's tools or leave a security gap
• •Audit logging must be built from day one—you cannot retroactively log; capture metadata (who, when, tokens, cost), not prompts/content
• •Per-user cost caps and budget alerts prevent runaway spend; identity (per-user keys) makes attribution possible, which makes both auditing and cost control meaningful

Generated with AI, which can make mistakes.