Your Agent's Budget Check Has a Race Condition. Build a Reservation Ledger in TypeScript.
This story is from 2026-10-10. It is preserved in the archive; the latest stories are on the live feed.
Two agent calls walk into a budget check. Both leave with permission to spend the same money. You have 100 units left. Call A wants 60. Call B wants 60. Each checks the balance before either call finishes. Both pass. Your dashboard later explains that 120 is larger than 100. Excellent observability…
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- 2026-10-10 20:08 · DEV Community — AI
Your Agent's Budget Check Has a Race Condition. Build a Reservation Ledger in TypeScript.