lib/maude/conditional.sx — condition-aware reducer. ceq fires only when
its guard holds: equational guards (l=r reduce to same normal form) and
boolean guards (term reduces to true), evaluated by recursing through the
same reducer. Verified on gcd, insertion sort, max, even.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
The chisel. lib/maude/matching.sx: multi-valued matcher mau/mm returning
ALL substitutions, dispatching on op theory (free/comm/assoc/AC). Identity
lets variables grab empty blocks. AC-canonical form (mau/canon) powers
ac-equal? and deterministic printout. AC rewriting extends f-AC equations
with rest vars so a rule fires on any sub-multiset/subword; mau/first-change
only commits rewrites that change the canonical form (idempotency/identity
terminate). Verified on multiset rewriting, set theory, group equations.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Facade read-by-id was top-level only while content/edit's update/delete are
tree-wide — could not read back a nested block content/edit just modified.
Added generic ct-find-id (doc.sx) + doc-find-deep/doc-has-deep?; content/find
+ has? now descend into sections. content/find-top/has-top? keep top-level
lookup. Audit: remaining doc-find/ct-index-of callers are positional
insert/move (top-level by design). +6 api tests.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
lib/maude/reduce.sx — one-sided syntactic matching (non-linear patterns
via bound-var equality), immutable substitutions, innermost fixpoint
normalisation. Tested on Peano arithmetic, list ops, a propositional
logic simplifier, and non-linear matching.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Term representation (lib/maude/term.sx) plus a module parser
(lib/maude/parser.sx) consuming lib/guest/lex + pratt:
- whitespace+bracket tokenizer (--- / *** comments)
- mixfix classification (split op names on _): infix/prefix/postfix/const
- precedence-climbing term parser over a pratt table built from op decls
- fmod/mod ... endfm/endm with sort/subsort/op/var/eq/ceq/rl/crl
- transitive subsort hierarchy + operator overloading queries
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
ical.sx serializes events to VEVENT/VCALENDAR text for import by standard
clients: UTC basic-format stamps, DURATION (PT#H#M), full RRULE
(FREQ/INTERVAL/COUNT/UNTIL/BYDAY incl. monthly ordinals 2TU/-1FR/BYMONTHDAY)
plus EXDATE/RDATE. Line-oriented (ev/event->ical-lines / ev/events->ical-lines)
with ev/ical-render joining CRLF for the wire format. 332/332 green.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
oauth.sx routes the PKCE check through pkce_ok: an S256 challenge carried as
{s256, Hash} compares crypto:hash(sha256, Verifier) =:= Hash; a bare
challenge stays plain (§4.1), so both methods coexist with no change to
existing flows (the bare path is the old =:= behaviour). Raw sha256 digests
are compared (base64url is wire encoding, omitted). New tests/pkce.sx (6,
incl. S256 through PAR). Verified pkce 6/6; substrate fix is in the
preceding commit. 239 total.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
er-eval-binary-segment evaluated a string-valued segment (the parser
represents <<"abc">> as one integer segment whose value is the whole string
"abc") by calling er-emit-int! on the string, emitting a single bogus 0
byte. So every <<"...">> literal became {:tag "binary" :bytes (0)} — which
made binary =:= read as "always equal" and crypto:hash input-independent.
Fix: the integer branch now expands a string value to one byte per
character (Erlang semantics: <<"abc">> ≡ <<97,98,99>>). Verified:
byte_size(<<"abc">>)=3, <<"a">> =:= <<"b">> is false, crypto:hash distinct
per input.
(User-authorized cross-scope fix from the identity loop; loops/erlang
should adopt this as the owner of lib/erlang.)
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
ev/book-checked! prevents an attendee double-booking themselves across
different events by consulting their persist-derived availability for the
occurrence window (:time-conflict on overlap; same-occurrence re-book stays
idempotent).
ev/book-checked! prevents an attendee double-booking themselves across
different events: consults their persist-derived availability (ev/free-p?) for
the occurrence window, returns :time-conflict on overlap else the normal
ev/book-occ! result. Re-booking the same occurrence stays idempotent
(:already); other actors unaffected. ev/would-time-conflict? predicate.
311/311 green.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
The er-bif-http-listen BIF body in lib/erlang/runtime.sx referenced
er-http-resp-to-sx / er-http-req-of-sx — helpers deleted by 78eae9ef
("fed-sx-m1: 8b-bridge cleanup") because the BIF body never picked
them up. Listener bound but every request handler crashed on first
call to the undefined helpers; curl got 000 / empty body.
Rewrote the sx-handler bridge to thread through the live marshallers
that the cleanup commit's message claimed were already in use:
Inbound: SX Dict {:method :path :query :headers :body}
-> er-request-dict-to-proplist
-> Erlang request proplist matching http_server:route/2 shape
(binaries for path/method/body, dict-like proplist for headers)
Outbound: Erlang [{status, N}, {headers, [{Bin, Bin}, ...]}, {body, Bin}]
-> er-proplist-to-dict
-> SX Dict matching what native http-listen serialises
(er-to-sx-deep auto-converts binary values to strings and
flattens the 2-tuple headers cons to a nested SX dict)
This is technically substrate work in lib/erlang/runtime.sx but
stays within the m2 briefing's allowed exception scope — the http
BIF wrappers (Step 8a / 8e / now 12-prep) are the explicit substrate
carve-outs. Unblocks Step 12's REAL two-instance smoke test rather
than an in-process loopback variant.
Test: next/tests/http_server_tcp.sh 5/5
- GET / -> 200
- GET /.well-known/sx-capabilities -> 200 (body contains "kernel:")
- GET /no-such-path -> 404
- POST /activity (no bearer) -> 401
- POST /activity (bad bearer) -> 401
No-regression gates green: Erlang conformance 761/761,
httpc_request 10/10, dispatch_http 10/10, http_listen_bif 5/5,
discovery_fetch 11/11, http_multi_actor 44/44, http_marshal 10/10.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
tests/integration.sx — one narrative across every module: catalog -> stock
check -> quote (promo+stack+tax) -> attribution -> order flow -> payment
envelope -> settle -> recon -> refund flow -> ledger mismatch, asserting the
seams tie together with consistent numbers. Proves the three-substrate
composition (minikanren pricing + flow lifecycle + persist ledger) end to end.
Total 297/297 across 18 suites.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
content/diff + diff-versions enumerated ids top-level only (doc-ids/
doc-find), so diffs of documents with sections missed every nested add/
remove/change. Now via doc-tree-ids + doc-deep-find; sections excluded from
:changed (no own content), still reported in :added/:removed. Flat-doc
diffs unchanged. +9 store tests.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
unrelate-node! retracts every local edge touching a node (all kinds, both
directions); leaves federated peer links alone. 147/147.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
lib/relations/tree.sx over reach/ancestors/rnode — no new Datalog closures. 126/126.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
refund.sx — refund as a second flow-on-sx flow (request -> approve -> settle)
with two suspension points (approval = human/policy decision, settle =
provider). refund-begin! records :refund-requested and suspends at approval;
refund-approve! advances to settle; refund-settle! records :refunded
(idempotent) and completes; refund-reject! records :refund-rejected and cancels.
Only :refunded moves the books. Reuses order.sx flow helpers. Completes the
Phase 5 backlog. Total 278/278 across 17 suites.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Keep the Datalog ruleset minimal — every dl-query re-saturates, so shape
queries are SX BFS over erel, not extra closures. 110/110.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
content/search-text + search-text-ids find every block whose (asText b)
contains a term — spanning all text-bearing fields by reusing the canonical
asText projection, so it can't drift from stats/find-replace. Section
wrappers excluded. +7 query tests.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Reference index (matching datalog/persist convention): canonical load order and
the full public surface across all 10 modules, plus artdag/version. Wired into the
conformance load list. Total 158/158 unchanged.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
fault.sx run-safe: a node op may return (artdag/fail reason); failure is confined
to that node + downstream dependents while independent branches compute, and failed
results are never cached, so retry after a fix recomputes only the failed closure
and hits the good nodes. fault 14/14, total 158/158.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
stock.sx — reservation as a precondition the host checks before order-begin!
(validate -> begin), keeping the flow pure. available-stock reads catalog stock
facts; can-reserve?/reserve-check/reservation-shortfalls gate a cart;
effective-available nets out concurrent reservations so orders can't
over-reserve; sufficient-stocko is the multidirectional availability query.
Total 258/258 across 16 suites.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
stats.sx reports hit-ratio, cost-weighted work-recomputed/work-saved,
savings-ratio, and exec-summary over an execution record. Verifies cold (0
saved), warm (all saved), and incremental (saved = unchanged, ran = dirty
closure). stats 12/12, total 144/144.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
artdag/optimize entries outputs fusible? fuses the entry list then DCEs against
the output names — sinks survive fusion (never absorbed), so output-equivalent
with fewer nodes. optimize 22/22, total 132/132.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Adds the SX->Scheme delivery bridge (ev/deliver-messages): notification-
derivation modules (reminders/booking-lifecycle/reschedule) now flow through
the durable notify flow end to end, with an integration suite covering
delivery success, transient-failure, and empty-batch paths.
serialize.sx emits a topo-ordered (id op inputs params commutative) record list
that survives write/read (string-keyed node dicts do not; empty inputs read back
as nil and are normalized). wire->dag reconstructs a runnable dag by content-id;
wire-verify recomputes ids to reject tampering. dag->string/string->dag for text
transport. serialize 13/13, total 128/128.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
