timezone.sx: wall-clock LOCAL <-> absolute UTC. :fixed + :dst zones (std/dst
offsets + UTC transition rules, EU-style, no IANA DB) computed via calendar
helpers. ev-event-tz authors in local time; ev-expand expands tz events in
LOCAL time then converts each occurrence to UTC, so a 09:00 weekly meeting
stays 09:00 across a DST change (UTC instant shifts). Predefined utc/london/
paris. Plain events unaffected. 295/295 green.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
fetch abstracts how a peer's agenda arrives: (fetch peer-id ws we) ->
{:status :ok :occurrences} | {:status :error}. ev/federated-agenda-via merges
local + trusted peers fetched via the transport; unreachable peers degrade
gracefully. ev/peer-fetch = in-process adapter; ev/federation-status reports
reachability. A real fed-sx transport drops in unchanged. 278/278 green.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
ev/reschedule-notifications: when an event carries per-occurrence overrides,
reads the roster at each overridden occurrence's original occ-key and emits a
reschedule message per booked attendee (old-start/new-start/new-duration).
Idempotency key = original-key/reschedule/new-start. 272/272 green.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
booking-notify.sx walks the booking stream into ordered notifications by kind
(booked/promoted/held/confirmed/released/cancelled/waitlisted). Promotion
detected by folding the waitlist (a booking for a waitlisted actor is a
promotion). id=occ-key/seq -> idempotent re-derivation, no double-ping.
Connects ticketing to the delivery layer. 265/265 green.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
ev-with-override re-times/re-sizes a single instance of a series (keyed by
original start). ev-expand applies overrides after EXDATE/RDATE: agenda
re-sorts, instance moved out of window is dropped (slot vacated), no-op for a
non-occurring start. assoc for immutable event update. 254/254 green.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
When full, ev/waitlist! queues actors FIFO (:waitlist/:unwaitlist on the
booking stream; waiting fold independent of the seat fold). ev/waitlist,
ev/waitlist-position, ev/leave-waitlist!. ev/cancel-promote! frees a seat and
auto-promotes the head of the queue to a confirmed booking. Idempotent.
240/240 green.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
federation.sx: a peer publishes a schedule; ev/federated-agenda merges local
(origin :local) with trusted peers' agendas, sorted by start, tagged with
:origin provenance. Trust is a peer-id set re-checked per merge; untrusted
peers contribute nothing. Real transport slots behind ev/peer-agenda.
209/209 green — all four plan phases implemented.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
notify.sx: reminders + digests as durable flows over an injected transport.
A flow requests delivery (suspend); the host dispatch sends and resumes with
the outcome. At-least-once + idempotent (transport dedups by msg id; replay
logs outcomes). Retry rides suspend/resume with distinct per-attempt tags,
bounded by maxn. Digest delivers a batch with per-message outcomes.
182/182 green. Delivery core is the delivery-on-sx extraction seam.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
ticket.sx: checkout-request (events->commerce) + payment-result
(commerce->events) wire shapes — commerce imports the contract. ev/request-
ticket! holds a seat + emits a checkout request; ev/settle-payment! confirms
on :paid, releases on failure/expiry. Idempotent; late paid for a vanished
hold -> :paid-but-no-hold (refund signal). 175/175 green.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Booking stream gains :hold/:confirm/:release; fold tracks per-actor seat state
(:held/:confirmed). A held seat counts toward capacity so a pending payment
can't be oversold. ev/hold! (capacity-safe), ev/confirm!, ev/release!,
ev/seat-state. Holds race test mirrors the booking race. 144/144 green.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Booking stream carries :booking/:cancel events; live roster is the folded
replay so cancelling frees a seat and capacity reopens. ev/cancel! (retrying
append-expect), no-op on unbooked, cancelled actor may re-book. Capacity count
is folded roster size. 110/110 green.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
booking.sx: per-occurrence append-only stream, roster = replay. Booking
decided against an observed (roster, last-seq) snapshot, committed via
persist/append-expect — atomic check+append, no overbooking, no lock.
Explicit last-seat race test: two bookers, one booked, one conflict, roster
capped. Idempotent per actor. 97/97 green.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
ev-next-free finds the earliest free slot >= after for a duration within a
horizon, probing 'after' + busy-interval ends via the busy_in rule (ev-free?).
Finds gaps, skips too-short gaps, half-open at edges. 59/59 green.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
