Adds the harness plug-in kind (interface 1). packages/plugins/harness/pi
and claude-code hold what core branched on: the adapter, thinking levels,
preflight, version probe, sandbox mounts, builtins line, typed tool names,
gate timeout, bundle files, adapter env, turn end and session-files path.
Core reaches a module only through the loader.
A session's route is the instance's harness, model and thinking vars, or
the three fallback. vars; a missing one refuses no-route, and the system
file's execution keys are never read for a session. The launcher checks
the primary route, then the fallback: harness-off, harness-refused,
thinking-unsupported, then preflight. A failed preflight falls back when
a fallback is set, and any refusal of the fallback names the primary's
failure too. Account checks run
only when the route's module counts an account. The manifest records
route, routeReason and harnessVersion, replacing piVersion and
claudeVersion. pi gets --thinking, Claude Code --effort, both from
MOSAIC_THINKING.
The business file refuses a partial fallback. routes and routes.set are
human-only bus verbs outside ORGANIZATION_KEYS; checkRoutes is shared by
routes.set, instances.set and limits.set and checks only changed routes.
The chief of staff changes an instance's model, and the assistant's whole
vars (Q169), through limits.set, so its route write runs the same checks.
A model outside launch.models refuses unknown-model, primary or fallback,
and routes.set passes that code through.
A new run binds only on a switched-on harness module name and records
its transcript path, which the usage reader uses. Settings gains a
Routing table with six selects per instance and loses the Role models
fieldset; it posts changed rows to /api/routes. webui/src/bus.mjs is
unchanged.
Until Jason's `mosaic plugins set` adds "harness": ["claude-code"], a new
launch refuses harness-off.
The business file can name the account claude-code launches use,
`launch.account` = {name, credential}. `name` is an identifier and
`credential` names one login set's environment variables, never a value.
`launch.limits.tokens.daily.<account>` = {limit, since, reset, timeZone}
sets a daily quota for that account. A daily key that isn't the account's
name refuses the business read.
The new plug-in limit-check/daily-quota (interface 2, pure) starts a day at
the first instant at or after `reset` on that local date in `timeZone`. Across
DST that makes a 23- or 25-hour day, and a reset in a skipped hour starts at
the gap's end. It counts the account's known records of all four kinds since
the later of the day start and `since`, and counts unknown turns apart.
The launcher refuses account-credential-missing, account-credential-ambiguous
and account-is-credential (an account name equal to a session credential's
value). Messages name variables, never values. The account rides mayLaunch,
bindLaunch, the usage records, mustStop and the launch record. A pi launch
has no account, records NULL, and no daily quota covers it. `mosaic limits`
and the Console's Settings show one fixed line when a daily row shows:
"Daily quotas count only this stack's own use of the account, not its use
anywhere else."
Bus schema 3h to 3i: 3h reserved usage_records.account as
CHECK (account IS NULL). The new step 3h-3i.sql rebuilds the table in one
transaction, keeping every row's seq and the sqlite_sequence value, and
recreates the three append-only triggers. All of sqlite_master equals 3h's
apart from the account line. A 3h engine refuses a 3i store.
packages/bus/tests/account-migration.test.mjs covers all three, with a
step that fails partway and leaves 3h intact. 3i goes live only through
`stack-release.sh activate ... --migrate` with Jason present (P19 371); the
activate path takes the pre-migrate backup, and the way back is restoring
it (agents/dewey/work/queue-126/MIGRATION.md).
Mos's go mos-0835, six conditions: (1) one transaction, account-migration
test 2 and mutant D29; (2) sqlite_master against 3h, test 1 and mutant D28;
(3) account is never a credential, the launcher's account-is-credential
refusal (launch-account.test.mjs) and the business name pattern
(token-limit-settings.test.mjs); (4) MIGRATION.md, accepted by Mos in
mos-0837; (5) the packet's DESIGN.md "no schema change" line corrected;
(6) the public/ digest below.
The public/ change in bus.js (the daily line under the token-limit table)
carries Mos's decision 123 go mos-0833 on the +/- digest 03e6d9da...ba78,
unchanged at landing.
Owner Dewey, brief docs/plans/2026-10-14_prd-1.2-build.md, "Daily quota for
the credential the stack uses today". Review round 2 rebases the round 4
build onto 1df04f52f (row 167). Reviewer: Filbert approve 29068 on round 1
(manifest d18314f7...8e65); Filbert approve 29080 on
round 2 (manifest f332db76...6fa6).
Seat run on round 2: touched 158/0, singles 1388/0 with 1 esbuild skip,
test-land-work.sh 86/0, 30/30 mutants killed.
Sage gate on 54319f552: GATE_PASSED, 2474+422/0, all 15 packages, the queue
suite and 10 script selftests.
Nothing live.
Filbert's r1 note (a): the scope line didn't name the 3i rebuild or the
account-is-credential guard, which sage-0970 and mos-0835 authorize.
Item 6 describes both. The acceptance list gains the mos-0835 tests, and
the scope bullet now covers the migration step, the version bump and the
guard.
The Settings page held the launch settings twice, one copy for the launch form and the
token-limit reset and one for the Assistant section. A save in one form left the other with
the old revision, so its next save was refused with revision-conflict. Now one snapshot
serves both. Every successful save or reset sets it from the answer, a read replaces it only
while no form has a draft, and reload clears it.
The names read now rethrows a 403 or signed-out like the usage, instances and limits reads,
so a refusal gives the refused page instead of an empty name field.
Tests: the names refusal, one per snapshot path (launch save, assistant save, reset), and a
null body on /api/name and /api/assistant-stop. limits-browser.test.mjs:54 now expects the
reset's revision on the following save.
Owner Darkwing, brief docs/plans/2026-10-18_settings-reads-after-q169.md.
Mos's decision 123 go mos-0836 on the public/ +/- digest
82a8a810...e984. Mos's F1 and Filbert's notes 1-2 are P19 370.
Reviewer on candidate manifest dba38330...59cc: Filbert approve 29062.
Seat run: 231/0 on all 38 webui files singly, 8/8 mutants killed.
Sage gate on ee3f1fb3f: 2443 package tests and 422 script selftests, 0 failed,
GATE_PASSED 01:06:56Z.
Nothing live.
`mosaic business instances BUSINESS` reads the role instances, and
`mosaic business instance add|set` writes one add or change through the
broker's new human-only `instances` and `instances.set` verbs. The writer is
packages/business/src/instance-settings.mjs. It takes the caller's revision,
validates the next document, refuses a definition that declares credentials
(organization-credentials-out-of-scope), keeps protected instances as they
are, logs the human as the actor, and says when the running bus needs a
restart. Neither command restarts the bus.
The writer refuses the instance ids human and tester with invalid-request,
because the broker refuses a business whose roles use either name when the
bus starts.
The Console's Settings view shows the instances and, under --send only,
posts to POST /api/instances with the exact Origin and same-origin Fetch
Metadata. A refusal keeps the draft. An answer without the view's shape is
outcome-unknown (503). The page's public/ diff carries the decision 123 go
in mos-0832.
Neither verb is in ORGANIZATION_KEYS, so no agent tool reaches them.
Owner Darkwing, brief in row 165 (#1662). Round 3 rebases round 2 onto
4f45cadc0 (row 156). The public/ +/- digest is 939ecd28...9444, unchanged
at landing. Reviewers on candidate manifest e30b54da...f580: Dewey
approve 29052, Filbert approve 29053. Seat run on 4f45cadc0: 1436/0
singles, 37/37 mutants killed. Sage gate on e8b09735a: GATE_PASSED 25/25,
packages 2282/0, queue node 156/0, script selftests 422/0, 23:59:13Z to
00:05:35Z. Rebased onto 50a57e454 over two SESSIONS-only commits.
Nothing live.
jason.woltje