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swarm-controller: create every agent's subagent stream

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swarm-controller now creates `term-sub-<agent>` for every agent a hive is
declared to run, at start and every minute after, with the config
`swarm_queue_client::subagent_term::open_or_create` spells (subjects
`$SWARM.term.<agent>.sub.>`, max_age 24h). An existing stream is opened as
it is, as the controller does for its other streams and buckets, under the
`$JS.API.STREAM.CREATE.*` grant it already holds.

The agent no longer creates the stream: its token is granted publish on
`$SWARM.term.<agent>.sub.>` and no `$JS.API.STREAM.CREATE|INFO` subject,
and the subagent daemon only publishes. A `CREATE` carries the stream's
config in its payload, which no subject grant narrows, so the agent could
otherwise pick the stream's subjects and limits.
This commit is contained in:
atlas 2026-10-02 23:34:27 +02:00 • committed by mara
commit 318f67cda9
13 changed files with 135 additions and 102 deletions
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4
nix/module-eval/nats-authelia.nix
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@ -165,7 +165,7 @@ let
# The whole per-agent grant, compared as a list rather than by infix: a
# wider subject added beside these (`$$JS.API.>`, another stream's name)
# would pass every presence check above.
name = "a verified agent's grant is exactly its own subjects and its subagent stream";
name = "a verified agent's grant is exactly its own subjects, with no JetStream API subject";
ok =
let
args = lib.splitString " " (responderOf natsOldPath).serviceConfig.ExecStart;
@ -183,8 +183,6 @@ let
"'$$SWARM.agent-state.{agent}'"
"'$$KV.agent-icons.{agent}'"
"'$$SWARM.term.{agent}.sub.>'"
"'$$JS.API.STREAM.CREATE.term-sub-{agent}'"
"'$$JS.API.STREAM.INFO.term-sub-{agent}'"
];
}
{