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Add "Forbidden Mutation" and "Aggregate Share Request Rejected" docs #196

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jcjones merged 3 commits into from
Aug 5, 2026
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Add "Forbidden Mutation" and "Aggregate Share Request Rejected" docs #196

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Add "Forbidden Mutation" and "Aggregate Share Request Rejected" docs
jcjones Aug 5, 2026
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12 changes: 12 additions & 0 deletions docs/references/janus-errors.md
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Expand Up @@ -80,3 +80,15 @@ header, if provided.
This error indicates the Janus aggregator could not service this request within
a timeout bounds, and it was cancelled by the aggregator. The client should
retry this request, respecting the HTTP `Retry-After` header, if provided.

### Forbidden Mutation

The request attempted to change a resource that is immutable once created by re-
using the identifier but with different parameters. (Note that re-sending the
original request verbatim is always safe.)

### Aggregate Share Request Rejected

A Janus helper has declined to produce an aggregate share for the requested
batch. It may be the case that the batch is old enough to be eligible for
garbage collection, which is then refused to prevent replay.