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>
New adversarial/cross-phase coverage: diamond resource+group hierarchies
(deny wins per path), chain inheritance + leaf deny, cycle termination,
multi-peer delegation, fact validation, audit snapshot/restore round-trip.
Adds acl-validate-facts/acl-facts-valid? (schema) and acl-audit-snapshot/
restore!/copy (audit). Fixed acl-audit-restore! rebuilding the live log via
map (append! silently no-ops on map-derived lists).
Suite is prover-free: a substrate JIT bug loops the recursive proof
reconstructor on deep chains in warm processes (documented in Blockers);
acl-permit? is unaffected. 145/145.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
The shared durable-state substrate (lib/persist) other subsystems build on:
log + kv facets over an injectable backend, projections, subscriptions,
snapshots + compaction, optimistic concurrency, a durable backend over the
kernel perform IO boundary (blobs by reference), plus extensions (materialized
views, kv CAS, stream catalog, query helpers, atomic batch, schema-evolution
upcasters, exactly-once append, global commit ordering) and a worked ACL
reference migration. 201/201 tests across 20 suites. Durability awaits the
host-side storage adapter (tracked in the plan's Blockers; loops/host-persist).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
166/166 across 11 suites, Phases 1-8. Combinators (sequence/parallel/branch/attempt/
map-flow/while/until + retry/timeout/try-catch/recover/tap/fail-model), durable
suspend/resume via deterministic replay (guest call/cc is escape-only), crash
recovery, fed-sx distribution (remote-node/failover/replication/handoff), operational
API + hygiene, and a host integration ABI + reference driver for art-dag / human-in-
the-loop. New lib/flow/** only; imports lib/scheme read-only.
examples/acl.sx: a tested template migrating an ACL-grants store from a
hand-rolled ephemeral map to persist — grants/revokes as events, current set as
a projection, O(1) checks via a materialized view, audit via read-window.
Header carries the BEFORE->AFTER diff. Proves grants survive restart on the
durable backend (the capability the BEFORE version lacked). The pattern other
subsystem loops copy; does not touch the real lib/acl. 201/201.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
global.sx: persist/gappend records a pointer in a reserved $global index whose
seq is the global commit position; read-global/project-global replay every
event in commit order; global-from for incremental consumers. Opt-in (plain
append untouched); $-prefixed streams now reserved + hidden from the public
catalog (streams-all reveals them). Gives feed its unified timeline.
Deterministic across restart. 191/191.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
mod/triage-pipeline domain r reports actor composes domain-policy decision →
explanation → AP activity → wire into one bundle. Integration test runs the whole
federated path across 5 modules (decide → wire → peer → trust-gated apply),
confirming the module-by-module subsystem composes end to end. +15 tests.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
mod/defrule collects trailing conditions via &rest; mod/ruleset assembles rules.
No macro needed — conditions are plain data, fn supports &rest here. Produces
structurally identical rules to mk-rule (asserted) and works in the engine
unchanged. Closes the roadmap's original defrule surface. +11 tests.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
mod/register-policy! domain rules + mod/decide-in domain r reports give each
rose-ash domain its own rule set; unregistered domains fall back to default-rules
(never unmoderated). Same spam report → remove under a strict market policy, hide
under blog default. Engine already took rules as a param, so this is registry +
fallback, no engine change. +14 tests.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Completes the host ABI from work-queue to driver loop: the host supplies only a
(kind payload) -> answer dispatch fn; flow-drive-host services one tick of pending
requests, flow-run-host ticks until quiescent (bounded). Tested via the art-dag
render -> human-review -> publish pipeline driven entirely by flow-run-host. The
art-dag integration is now: define dispatch, call flow-run-host. 166/166, 11 suites.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
mod/decision->activity maps a decision to a moderation verb (remove→Delete,
ban→Block, hide/escalate→Flag, keep→no activity) shaped like an AP activity,
preserving the precise action. mod/decisions->activities batch-exports dropping
keeps. With wire (Ext 14) + fed trust (Phase 4) the federated moderation path is
end-to-end: decide → activity/wire → peer → trust-gate → apply. +17 tests.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
idempotency.sx: persist/append-once appends at most once per (stream,
idempotency key), returning the same event on a repeat. The marker lives in the
kv facet, so idempotency holds across a restart (verified on durable).
persist/seen? check. 180/180.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
upcast.sx: register a pure (event -> event) upcaster per type in an immutable
registry; read-upcast/project-upcast lift legacy events to the current shape on
read so projections see one shape (no version branching, no history rewrite).
upcast-data helper merges new :data fields. 171/171.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
batch.sx: persist/append-batch commits (type at data) specs as one contiguous
block; persist/append-batch-expect checks the stream is still at expected
before writing any event, so the batch is all-or-nothing under a concurrent
writer (conflict is a value, not a partial write). 162/162.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
The seam for hooking flow to art-dag and human-in-the-loop later. (request kind
payload) suspends with a typed (flow-request kind payload) envelope and returns the
host's resume value; await-human/await-render sugar. (flow-host-requests) is the
host work queue: (id kind payload) for every suspended flow awaiting a host effect;
request?/request-kind/request-payload parse a tag. Tests include the art-dag-shaped
driver loop (render -> human-review -> publish). Host owns IO+persistence; flow only
requests (replay-safe). 162/162 across 11 suites.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
(:any (list c1 c2 ...)) compiles to Prolog disjunction (g1 ; g2 ; ...), completing
the condition boolean algebra (AND via :when list, :not, :any). cond->goal
recurses so combinators nest arbitrarily; the proof tree shows the compiled
disjunction verbatim. Maps onto Prolog's control constructs rather than
reimplementing boolean logic in SX. +10 tests.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
query.sx: read-between (seq range), read-since/read-window (by :at),
read-by-type, read-where, count-where. Pure scans over persist/read for audit
windows, type filters, since-cursors. 152/152.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
New backend op :streams (from seq high-water marks, so compacted streams still
list), threaded through mem-backend + durable serve/io-backend. catalog.sx:
persist/streams, stream-count, stream-exists?, total-events. 143/143.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
kv.sx: persist/kv-cas sets a key only if its current value equals expected,
else returns {:conflict :expected :actual}; persist/kv-put-new is create-only.
The kv analogue of log append-expect — atomic current-state for sessions, acl
grants, stock counts. 133/133.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Replaces the bespoke 116-line conformance.sh with a conformance.conf + 1-line
exec shim, reusing lib/guest/conformance.sh. Surfaced + fixed a silent undercount:
the old awk extractor reported pipeline=40, but pipeline.sx has 152 assertions —
real total is 562/562, not 450/450. Driver reads counter globals directly.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
mod/decision->wire emits a versioned pipe-delimited line (MOD1|r1|hide|spam-hide);
mod/wire->decision parses it back (mod/wire-valid? guards). split-char built over
slice/len (loaded env has no split). Integration test runs the full federated
path: serialize → wire → deserialize → fed-receive-decision trust-gating
(untrusted→advisory, trusted→applied). +16 tests.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
view.sx: persist/view bundles stream + fold + snapshot name; view-attach
subscribes it to a hub so each publish refreshes the snapshot incrementally,
making view-peek an O(1) current read. view-value always folds the tail so it
is never stale. The consumer read-model abstraction (feed indices, audit
rollups, search counters). 122/122.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
recovery.sx: 6-test end-to-end crash/restart of an order ledger (log +
subscription kv read model + snapshot + compaction + invoice blob ref) on the
durable backend; everything survives a restart over the same disk + content
store, seq continues, two restarts converge. Migration notes (mem → durable
under a live subsystem) added to the plan. Roadmap done, 111/111.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
blob.sx: a blob ref is {:cid :size :mime}; the blob store is a separate
injected dependency (perform in prod, mock content store in tests).
persist/blob-store puts bytes and returns only the ref; bytes live in a
content-addressed store (artdag/IPFS). Tests assert refs in log/kv never carry
the bytes + content-address dedup. 105/105.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
durable.sx: io-backend with an injectable transport — persist/durable-backend
performs each op as {:op "persist/..." :args (...)} (kernel suspends, host
resumes); persist/mock-durable services via persist/serve over an in-memory
disk. Identical request shapes mean the whole facet/projection/snapshot/
compaction stack runs unchanged on the durable backend. Crash/restart replay
recovers log+kv+snapshot. 91/91.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Composes lifecycle (Phase 3) with time (Ext 12): a timed-case pairs a case with
its state-entry tick; mod/overdue? flags pending cases (open/triaged/appealed)
past a deadline; mod/sla-sweep returns the breached report ids. Terminal states
never breach. Pure overlay — lifecycle stays timeless, caller stamps entry. +15 tests.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Reports gain an :at tick (deterministic, supplied). mod/decide-temporal counts
reports about a subject within [now-window, now], asserts burst_count/2, and a
(:burst-at-least K) rule fires only on a real burst. 3 reports at 10/11/12 → hide;
3 at 1/2/12 (window 5) → keep, while the plain count rule escalates both. Fifth
report field threaded through rebuild helpers, non-breaking. +15 tests.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
mod/decide-batch triages a queue; mod/action-histogram summarizes outcomes by
action; mod/rule-coverage + mod/never-fired measure which rules fire across a
corpus — the empirical complement to lint's static unreachable check (lint finds
rules that can't fire; never-fired finds rules that didn't). +17 tests.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
mod/decision-diff compares one report's action under two rule sets;
mod/policy-impact batches a set and returns only the reports whose decision flips;
mod/impact-count / mod/impact-report summarize. Lets a mod team measure a policy
change's blast radius before shipping (e.g. removing spam-hide flips r1 hide→keep).
Pure SX over decide-report. +13 tests.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
mod/trace-rules evaluates a report against every rule, returning each rule's
proved/unproved status + goal-by-goal derivation (an unproved rule shows which
goal failed). mod/first-proved = winner (matches engine precedence, cross-checked),
mod/proved-rules the firing set, mod/trace-report a [fires]/[ - ] rendering.
Answers 'why didn't my rule fire?' without instrumenting the engine. +15 tests.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
(:reporters-at-least N) compiles to setof(Br, report(_, Br, Sr), Bsr),
length(Bsr, Nr), Nr >= N — counts distinct reporters, not raw reports.
mod/decide-quorum asserts every report's report/3 fact (base engine scopes to the
decided report) so Prolog can aggregate reporters. One user filing 3 reports stays
:keep under quorum while the count rule escalates. Own suite. +9 tests.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Backend now tracks last-seq as a monotonic high-water mark (survives
truncation) and exposes :truncate-through. compaction.sx: persist/compact
checkpoints then drops events with seq <= snapshot seq; should-compact?/
maybe-compact give an explicit every-N policy. Determinism: post-compaction
replay value == uncompacted full replay. Phase 3 complete, 76/76.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
snapshot.sx: snapshot is a projection state {:value :seq} stored in kv under
snapshot/<name>. persist/checkpoint replays and saves; persist/replay folds
only the tail after the snapshot. Tests assert snapshot+tail == full replay
both ways + determinism. 65/65.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
concurrency.sx: persist/append-expect refuses an append when the stream
advanced past the caller's expected seq, returning {:conflict :expected
:actual} instead of crashing or overwriting. persist/conflict? + accessors.
Phase 2 complete, 54/54.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
User-facing docs for the flow engine: the node model, every combinator, the
suspend/resume durability contract (escape-only call/cc -> deterministic replay),
lifecycle/introspection/hygiene API, fed-sx distribution, and substrate notes.
Doc-only; 151/151 unchanged.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
flow/gc drops terminal (done/cancelled) records, keeps live suspended flows, returns
count removed; flow/forget id drops one terminal record and refuses live flows.
Bounds unbounded store growth (retention/GC). Bumped conformance sx_server timeout
to 540s for the 10-suite run under CPU contention. 151/151 across 10 suites.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
project.sx: projection state {:value :seq}; persist/project folds the whole
stream, persist/project-resume folds only the tail so read models update
incrementally. Pure step (value event)->value. 37/37.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
