By NeoTeo
Publication Date: 2026-11-03 00:11:00
Cisco announced Project Quarry as an open-source rule language and engine for analyzing AI-agent traces on October 28, 2026. Developers can follow the repository’s quick start by cloning it, entering its directory, and running uv sync --frozen. The demonstrated input is an OpenAI-shaped JSON conversation with a messages array. (Project Quarry repository)
What Project Quarry examines
Quarry evaluates rules against agent messages, tool calls, results, and the order of events. Cisco says its described scope includes single- and multi-turn conversations, tool use, interactions with the Model Context Protocol (MCP), and multimodal inputs. The repository also says rules are parsed, validated, and compiled when loaded.
A rule can look for patterns in text, structured fields, regular expressions, tool use, or multi-turn flows. Cisco says a finding includes the matching steps and fields, plus a short excerpt; common secret formats are masked. Those details help a team inspect why a trace…