The harness landed in v1.30.35, after the slices that built this
release were already cut — so the reaction line's prompt module was
never registered, and its own docblock's warning against the
two-locale collapse was untested. Registering it surfaced a real gap:
the meaning-first instruction lived only in the system prompt's own
words, never in the user prompt in the family's shared phrasing, which
is where the rest of the surfaces carry it and where the tone contract
checks for it. The German body carried no such instruction at all.
Threads locale through the user-prompt builder so the fixed
instruction line matches the reader's own reply language, and wires
the per-user per-day opener-archetype rotation the milestone spec
called for and the first implementation had not connected.
Nothing warms this queue and no read path triggers it, so an unregistered name
fails open in the worst way: every send resolves, every job vanishes, and the
symptom is indistinguishable from the surface's honest empty state.
The paragraph is model output. Rendering it as markup would be an XSS surface,
and this project ships no markdown library so the question stays closed — the
test is what keeps that from being treated as a formatting decision.
The projection's central claim was carried by a comment. It is now walked
before it is returned: any non-numeric leaf at any depth throws, and the only
two string leaves are allowlisted by shape — the sport type against the schema
enum itself, and the day key against its format.
This matters because sport_type is a TEXT column whose API write path is
enum-constrained but whose backup-restore path accepts any non-empty string, so
a restored row can carry arbitrary text. It is re-asserted at the projection
boundary rather than trusted from the column. The heart-rate provenance string
is dropped rather than allowlisted, and route geometry stays consumed-not-carried
— it yields one number, and location history may not ride a prompt.
Own-history rows now collapse cross-source twins through the canonical picker,
as the detail page's comparison already did; a session recorded by two paired
watches was inflating the sample size and biasing every median.
Four suites, each mutation-checked against a reverted protection:
- route-workout-scope: the workout row is read exactly once across a ten-turn
conversation that keeps sending the id, the where clause always names
userId, another user's id resolves to nothing and the chat proceeds, and
the section sits inside the health-data fence.
- workout-evidence: the numbers-only closure. An instruction-shaped
sport_type — reachable through the restore path, which types the column as
free text — folds to "other" and never reaches the block; a free-text leaf
at any depth throws.
- page-launch-params: an unknown ?scope= is ignored silently, and ?workout=
yields to both ?c= and the fenced ?doc= path.
- composite-score-anatomy-coach: every score sheet carries an opener, a
scope narrowed to the composite's inputs, and auto-send.
resolveLaunchState's shape assertion gains the workoutId field.
Three properties, each with a mutation-verified guard:
The chip and the line run on DIFFERENT clocks and must keep doing so. The chip
expires after three hours; the line stands for the rest of the local day.
Collapsing them onto one clock reads like a simplification and silently deletes
the day's read at lunchtime.
Degradation is the headline. For every reason a line can fail to exist — no
provider, no consent, an exhausted budget, a dead provider, an unusable output
— the row stays line-less, the reservation is reconciled, and the chip and the
provisional-to-final flip still work. The degraded digest is built through the
real composer rather than a hand-shaped fixture, so the assertions cannot agree
with themselves.
The server pass carries no wall-clock time. The hero paints on the SSR pass
because it is the LCP element, so a locale-formatted time inside it would differ
from the browser's — React #418. The tests render through the server snapshot,
which is exactly the pass that must stay clock-free.
The seeded end-to-end spec lands a sleep batch through the real ingest route,
writes the arrival marker, and asserts the chip and the phase flip in place on
a refetch trigger the digest hook already declares — no reload, no new cadence.
Marc-André Bombeck