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Early Stage — Agent Journal is in active design. The trace capture patterns described here are currently implemented ad-hoc in the experiment repos and being extracted into a standalone library.

Overview

Agent Journal captures the behavioral traces that make agent research possible. Every tool call, state transition, and decision point is logged in a structured format that feeds directly into Markov chain analysis and behavioral fingerprinting.

What It Captures

  • Tool-call sequences — Ordered trace of every tool invocation
  • State transitions — Movement between the 9-state taxonomy (ORIENT, READ, EDIT, BUILD, TEST, etc.)
  • Timing data — Duration per state, time-per-intent analysis
  • Decision metadata — What the agent considered vs. what it chose

Why It Matters

Without structured traces, agent behavior is a black box. Agent Journal transforms agent runs into analyzable data — enabling Markov fingerprinting, loop detection, and cross-variant behavioral comparison.

Methodology

How traces become Markov chains — the analysis pipeline

Feeds Into