mesh-grants' sealed grants and the controller's merge record each met "message size exceeds maximum" (JetStream
10054) only after the put, and a writer that retries looped on a value that can never land; an update over the
limit was even answered as a revision mismatch, which every compare-and-set writer retries.
Quick fix: cap the two values in their modules. Thorough fix, chosen because the kind was met twice and every
module writes through the SDK: the package kvlimit checks a value against its bucket's largest message (read from
its stream and kept) before the put, naming the bucket, the key, the size and the limit, and turns the bus's own
refusal into the same *TooLarge (errors.Is kvlimit.ErrTooLarge), so no writer retries it. The SDK's own writers
use it: process.State (Put, Create, CreateTTL, Update), process.AwaitedBucket, the runtime state of a bundle
(stdio KeptState, against the module state's 256 KiB) and mesh-hand-compose. A value that can outgrow its bucket
is split over keys or kept in the object store with its name in the key.
mesh/check failed: the composition: the composer of the mesh-sdk mesh-controller at bdb8193456e17c9df59215c7f3e69a83a2e5a262 pins did not run: failed …
main's mesh-compose is the composer command (ADR 0482 clause 4) and keeps its name, which composer.Package and the
build steps name; feat/r6's hand path tool, which composes one module for one node and signs it with the operator's key
(ADR 0539 clause 10), moves to cmd/mesh-hand-compose.