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The engine's constants, your class priors, and which store this deployment is really using.

Class priors

How much each risk class contributes to the score. Normalised before use, so only the relative sizes matter.

  • 1.00
  • 1.00
  • 1.00
  • 1.00
  • 1.00
  • 1.00
  • 1.00
  • 1.00
  • 1.00
  • 1.00

Engine constants

version
herbarium-grade/1.0.0
saturation
1.2
gap threshold
35%
classes
10

Tier weights

monograph
1
standard
0.95
survey
0.85
empirical
0.8
theoretical
0.65
position
0.45

Status weights

read
1
reading
0.55
queued
0.2
parked
0.1
rejected
0

A rejected sheet contributes nothing. A queued sheet contributes 0.2 of a read sheet's weight, so unread material opens a gap but cannot close one.

Store health

checking

This session

ownership
anonymous http-only cookie
fingerprint
a42f9dd1

The fingerprint is a one-way summary of your token, shown so you can recognise the session without the token ever being displayed. There are no accounts, so clearing cookies means losing access to these volumes — export first if they matter.

Abuse controls

  • 40 writes per minute per session.
  • 20 mounts per minute per session.
  • 12 volume changes per five minutes per session.

Counters live in the database, not in process memory, so a cold start cannot reset them. This is best-effort on serverless: two concurrent requests for a brand-new bucket can both insert, so the count can briefly under-report. It reliably stops a single misbehaving client. A hard guarantee needs a hosted limiter in front of these routes.