> ## Documentation Index
> Fetch the complete documentation index at: https://docs.lerian.studio/llms.txt
> Use this file to discover all available pages before exploring further.

# Matcher consent, audit, and fee contracts

> Matcher now documents consent-bound aggregator connections, resumable audit verification, and rate-shaped fee-expression limits.

<Badge stroke icon="calendar-days" iconType="regular">August 25, 2026</Badge> <Badge stroke icon="file-code" iconType="regular">Documentation correction</Badge> <Badge color="purple" size="lg" stroke icon="eye" iconType="regular">Review recommended</Badge>

## Affects

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Teams operating Matcher aggregator connections, audit-chain checks, or fee expressions.

## What changed

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An aggregator connection can be created without `accountRef` while it awaits end-customer consent. A hosted consent token binds or renews the vendor reference; only bound connections can be tested.

Audit-chain verification accepts `fromSeq` as a resumable floor. A run above sequence 1 trusts that record's stored previous hash, so it does not verify earlier records. Rate-shaped expressions that scale exactly one `gross` by numeric literals must stay between `0` and `1`.

This corrects documentation of implemented contracts. It does not announce a runtime release.

## Impact

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**Classification: Review recommended.** Consent orchestration, incremental audit checks, and fee formula validation need to reflect their documented boundaries.

## What you need to do

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<Steps>
  <Step>Offer connection testing only after hosted consent binds the vendor account reference.</Step>
  <Step>Use `fromSeq` only when the trusted lower audit-chain boundary is explicit.</Step>
  <Step>Validate rate-shaped fee expressions as fractions between `0` and `1`.</Step>
</Steps>

### Deadline

Review before changing Matcher integrations, audit jobs, or fee schedules.