Measuring the tier knob showed it works — one creature against the four
agents check-lethality freezes, deaths per fight climb 0.01, 0.04, 0.32,
0.91, 1.43 across the five tiers for a large brute, and monotonically for
hunters and flyers too.
It also showed the labels oversell. "Deadly" at tier 3 kills a third of an
agent and wipes the team three times in a thousand. A GM reaching for a word
like that is owed the figure behind it, and the forge's whole argument is
that its output can be interrogated — the tier list was the one part of it
that could not be. Each tier now carries a measured `worth` line, printed by
`forge list` and under the tier selector in the dialog.
check-forge measures the ladder and fails if it ever goes down, across three
roles and five tiers. Both the labels and the worth lines are claims about
behaviour that any change to the skill bands, the hide base or the
characteristic multiplier could falsify without touching a word. Proved by
weakening tier 4: three roles report the inversion by name.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
