Weir - unit test for your AI agent
Deterministic tests for AI agents — no LLM required
What it does
Weir turns OpenTelemetry GenAI traces into deterministic, machine-checkable evidence of what an AI agent actually did. Measure how observable your agent is, trace data flow across steps, and produce witness paths for CI and security testing - with no LLM in the analysis loop. Built for engineers working on agent evals, observability, security, and CI. check it out! https://github.com/IdoGol24/weir
Weir - unit tests for your agents. Contribute to IdoGol24/weir development by creating an account on GitHub.
It reads the OpenTelemetry traces your agent already emits and fails the build when sensitive data reaches a sink it should not reach. Your agent already answers that question in the traces it emits. Weir reconstructs the session graph, tracks taint through it, and shows the evidence node by node. flowchart LR A["traces your agent<br/>already emits"] --> B{"weir gauge"} B -->|"coverage too low"| C["names the exact<br/>instrumentation switch"] C -.->|"flip it, re-run"| B B -->|"coverage sufficient"| D{"weir scan"} D -->|"no forbidden flow"| E["exit 0"] D -->|"forbidden flow"| F["exit 1 + witness path<br/>n2 → n3 → n4 → n5 → n6"] Loading Try it in two minutes pip install weir-scan weir gauge…from github.com
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