v1.2.1 — CostTracker Improvements

What's New in v1.2.1

CostTracker Improvements

• Per-span cost events: CostTracker now includes running total in span end events (cost_usd field)
• Model pricing accuracy: Updated model pricing for latest OpenAI, Anthropic, and Google models
• Warning on unknown models: estimate_cost() logs a warning when encountering unrecognized model names

Bug Fixes

• Fixed span end events not including accumulated cost data
• Improved CostTracker thread safety

Full Changelog

Full Changelog: v1.2.0...v1.2.1

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Installation

pip install agentguard47==1.2.1

Quick Start

from agentguard import Tracer, BudgetGuard

guard = BudgetGuard(max_budget_usd=5.00)
tracer = Tracer(service="my-agent", guards=[guard])

with tracer.span("agent-run"):
    # Your agent code here
    pass  # BudgetExceeded raised if cost > $5