Issue 1585, S12: grants, builder and checker read with catalogue.Decode and grants holds a module the indexer
refused; the checker asks the Go build seat to run mesh-judge, built at mesh-delivery's trunk or at the group's
mesh-delivery head when it changes the judge, over the catalogue as the change leaves it, and fails on a refusal.
Claude-Session: https://claude.ai/code/session_01NcbgfJ9Gum47zkFKWRaovL
The holder writes a node's changed module keys, then its node key as the commit by compare-and-set at
the revision the proposal was laid over, then the placement.<node> mirror for readers not yet delivered.
Every reader assembles through mesh-sdk's PlacementKeys, which reads both forms.
mesh-wireguard is provided by the mesh itself (mesh-sdk delivery.ProvidedByMesh): no repository builds it, so the
indexer holds no fingerprint of it and the assigner never wants it by one; the controller composes it with the
node's own. The grants part named it "no fingerprint of the new form: the indexer holds no value of it" on every
pass, a warning nothing could clear (sweep 2026-10-30 item 6).
Quick fix: drop mesh-wireguard by name from the missing list.
Thorough fix, chosen as cheap and covering every module the mesh may provide later: MissingGrants passes over any
module ProvidedByMesh names. The controller says the same of it in mesh-control (its grants and switch lines).
Met twice on 2026-10-30 (the engine's acts, then mesh-host_health): the composer refused one principal as a
second writer, and that refusal ended the whole composition, so the list in force stood for every principal
while changes piled up; the next list that composed moved 52 users at once (16:37:28).
Quick fix: leave the refused principal out and write the rest (locks that principal out of the bus).
Thorough fix, chosen because the kind was met twice and it hides every other change: ComposeEach composes each
principal on its own; a refused one keeps its grants of the list in force (the part's sealed grants), written as
the composer writes an entry; one the list in force does not carry stays out; a list that would drop one the
list in force carries, whose grants were not kept, is held, said. The refusal is raised as the warning
mesh-grants.principal-refused, by name and why, cleared once it composes, and listed in the pass
(principals_refused). The entry renderer mirrors buscompose.ComposeAccounts's lines and is pinned to them by the
test (the entry the bus loaded is written back byte for byte); it belongs in mesh-sdk as an exported entry writer.
The sealed-grants value held every user of the last two lists in one value; at 61 users it was refused with
"message size exceeds maximum" (JetStream 10054, 16:37 and 16:55 on 2026-10-30), so the permissions of the
list in force were never kept and a grant judged against them waited.
Quick fix: keep only the newest list in the one value (halves it; it still grows with the mesh).
Thorough fix, chosen because the value grows with every placed module and the kind was met twice: one key per
user and list, sealed-grants.<digest hex>.<user>, and an index sealed-lists naming the kept lists and their users,
written only once every user's key is there; the third list's keys are taken away, and the old one-value key read
as a fallback and removed. mesh-sdk's kvlimit guard (7b02f63) refuses an oversized value before the put through
process.State.Put, which the part's own store (cmd/mesh-grants ownStore.Put) writes through once pinned.
mesh/check checking 57193ab2e474 on f7cd4698db7e | novox/mesh-delivery#115 in group fix/runner-carries-no-engine-state
Second meeting of the engine-state-in-runner kind; thorough: the runner
never carries the engine module. The live placement names mesh-host,
and with its health state the runner was a second writer, so every
grant since 13:54 was held back. The seeded-placement test now carries
the engine's manifest and refuses any runner write of mesh-host_*.
The state memberships held the part's wrapper ({node, module, digest, membership, published, retired}) while every
reader takes the bare membership the assignments stream carries: novox's tool runner decoded an empty one and served
no tool. The part now writes membership.EncodeGrantsMembership of a membership published or unchanged, never one held
back. The pass record moves to the pass the part already keeps (user-list at pass): published or why not was there, the
retired seat verbs are added as Result.Retired; grants_membership reads both, so no new state is declared.
Issue 774 (the bus login list, L3). Quick fix: marshal m.Membership here. Thorough, chosen: one codec in mesh-sdk the
writer and the tool runner share, because a hand-built fixture agreed with the mistake. Pins mesh-sdk at the head of
its fix/memberships-shape.
Why: after the lease write the assignments are frozen, so the part's union kept a module the catalogue takes off a node
with its account, grant, membership and user-list entry. The lease is read as the assigner reads it
(buscompose.LeaseHandedAway); before it, or with no placement on the bus, the union stands. The read stays declared until
the first change after the lease write, named in modules/assignments-readers with the assigner; a TestGrants row refuses
any other module.json that reads mesh-controller.assignments, as mesh-catalog's checks/placement does for the catalogue.
Why: the controller's grant writer skipped link2pay, snake, f1-circuits and txt-game in silence (it read the fingerprint by
their unchanged commit, a build of the old form) and the take-in said 'its grant written'. The part already reads the
fingerprint from the indexer's value, so those four are granted at their src2 done key's fingerprint; a row proves it.
What a pass leaves without a grant (no fingerprint of the new form with the indexer's none2, a refused manifest, no
hashed account) is now said rather than passed over. Quick: log it. Thorough (chosen): the pass's Missing, shown by the
grants tool, and a warning condition raised and cleared on change, as consumer-differs is.
Why: the assigner switches its grants source when the controller's lease is handed away; until then the written keys are compared with the controller's, so the switch rests on a measured equality. Needs the group's mesh-sdk pin (PartGrantKey) before it builds.
Live since the take-over the shadow list was written every 3 s (revision 99270
to 99357 in 90 s, nothing differing): the sealed key read back says [] for the
nil left-out a pass composes, so every pass wrote the key again; each write
moved the bus node's report of what it loaded, whose revision and time were
inputs of the shadow list, and woke the next pass. The bus itself reloads only
when the list's bytes change (its log: two configurations alternating with the
placement, f8567865 and 473f9ad3), so this loop was load, not the reload.
Review round 1 of issue 1945's fix found two ways the guard could let a loss
through or hide one from the operator.
A publish deny was never compared: grants.User carried no deny, so a widened
allow that brings a new deny (a lost publish right) passed as an added right.
The user now carries its deny; a deny the shadow adds is a loss, and while
nats_users answers no deny for the loaded list, a user whose grants differ
and whose shadow grant has a deny refuses, named as a deny the loaded list
cannot be compared on. None of today's 41 differing users carries a deny
(only the four node-tools users do, and they are the same in both lists).
The ask said "takes none away" whenever rights were added, whatever else
differed. Its words now name the added rights only when nothing else refuses
(Refusals: unread list, Removing, a missing hash), and otherwise say what the
yes would be refused for, naming the users; Decide uses the same Refusals.
issue 1945
The operator's yes to take-over was refused twice (2026-10-26 13:48 and
2026-10-27 21:19 UTC) because 41 users differ, every difference a right the
grants part's list adds. The controller's list is not changed (ADR 0547 §1),
so ADR 0547 §8's equality could never hold again. ADR 0562 changes it:
take-over is allowed when no user is added or dropped, no loaded user loses a
publish, subscribe or responses right and every hash is held; the ask names
the added rights by user and kind, and a yes after they changed is refused.
Tests: rows from the captured live comparison of 21:19 (testdata, no
hashes) in the compare table, and rows in the take-over table for a right
removed, added rights changed since the ask, and only added rights recorded.
issue 1945
A node composing a consumer reads the served keys of the trunk's manifest of a
provider elsewhere, which may serve a setting the build it runs does not.
mesh-grants declares each module's served settings (catalogue.ServedSettings), so
the user list grants every other node's agent those keys of mesh-config_resolved
alone: shanks then settles what novox's mailu serves. The assigner's check of
every node reads no build, archive or served value: it composes as before.
mesh/check being carried to ec0b7e2dcc06 on da514816204b | from 24cb379434f5
A dropped verified-sender comes from a root-free word that failed for one
pass, not from a release, and losing it cut the operator's approvals on
2026-10-27. Holdings.CapabilitiesLost holds such a membership with its own
reason while the holder is assigned and its manifest still asks for it; a
dropped tool or field and a moved seat stay published.
Holding the user list on any loss would freeze it after take-over at the
first release that drops a tool or moves a seat (ADR 0547 §7), with nothing
to accept a deliberate loss; memberships had the same gap. The lead's decision
in review round 1: one pure guard, Holdings.LastHolders, holds the list and
each membership only when a seat held in force would have no holder in what
is composed now while an assigned module still claims it, the 09:21 kind.
A dropped tool, verb or field, or a seat handed to another node, is written.
The user list of 2026-10-27 09:21 granted no holder for nine seats: the seeded
placements hold only the seats the controller had on record, and the grants part
read those holds as every holder (records.go heldWherePlaced). A placement's
holds are now the holders on record, as catalogue.World's Holdings are: a mesh
seat no placement holds is held by derivation, wherever its claimant is placed.
The membership loss guard (Losses) did not cover the user list: after take-over
the list that lost those seats went out. UserLosses applies the same guard per
user against the loaded list, and holdsBack holds a list that would lose a grant,
or whose loaded grants cannot be read, raising the held warning.
Quick fix chosen over moving the on-record rule into mesh-sdk: mesh-grants is the
only part reading placement holds itself; the others pass them to the catalogue.
The bus node can only take over a list that exists: each pass composes the accounts block with the vault's hashes, seals
it to the key the bus node says in its have, puts it in the part's own object bucket by digest and writes the key with
digest, revision, user count, users left out and which list to follow. take-over is refused, naming why, while no list is
sealed to the bus node's current key or the loaded list does not grant the bus node its read.
Review of fix/1945-takeover-blockers: no responders on the router's record is an error, not 'no record'; an answer whose
record cannot be reached is not closed; an ask that failed to publish is taken back at the router; an error acting on an
answer is logged. Pins mesh-sdk 175a5567.
jschoubben