Symbol ρ

The passage around this formula

The two axes are not independent, and the coupling matters more than either axis alone. Picture agent-produced candidate changes arriving at an organization’s review-and-merge gate at rate $\lambda$ , while the organization’s verification stage — tests, evaluators, human reviewers — disposes of them at rate $\mu$ . Treated as a simple queue, it is stable only while $\rho = \frac{\lambda}{\mu} < 1$. Parallel agent sessions raise $\lambda$ directly; that part is already happening, as the “agent teams” and fan-out patterns in Claude Code’s own documentation for running many sessions at once make explicit [ 3 ] . What raises $\mu$ is the less obvious half, and it is exactly where the two axes touch: if evidence…

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