is-a/subtype-of/tagged/related are now POSTS (each is-a a new `relation` root),
owning their metadata in a :rel slot {:symmetric :label :inverse-label}. The static
host/blog-rel-kinds registry is gone: kind-spec/rel-kinds/kind-symmetric? read the
relation-posts (via an in-memory cache), and the relation list derives from
host/blog-in "relation" "is-a".
Perform-budget fixes (a durable read inside the http-listen render VM raises
VmSuspended; too many per request 500s the page):
- relation metadata is loaded into a cache at boot (host/blog-load-rel-kinds!,
like load-edges!), so kind-spec is pure on render paths;
- the initial edit page renders its pickers EMPTY (the load trigger fills each) —
only the relate/unrelate FRAGMENT server-renders candidates (with-cands flag).
Previously every edit page render did candidate-get × 4 pickers and 500'd.
host conformance 287/287 (+4 slice-2: kind-spec reads :rel, kind-symmetric? off the
post, unknown kind has no spec, rel-kinds derived from the graph). run-picker-check
3/3 (edit page boots, relate/unrelate flow works, no client errors).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Types declare which relation they anchor (type declares is-a/subtype-of, tag
declares tagged) via a 'declares' edge; the picker's candidate set is the
down-closure of a relation's anchors through is-a ∪ subtype-of. So is-a/subtype-of
now offer the WHOLE type closure — the roots (type/tag/article) AND instances —
fixing the wrinkle where only instances showed and you could never pick 'tag' or
'article' as a type. 'related' has no anchor → every post.
Replaces the hardcoded :candidates "types"/"tags"/"all" with graph queries
(host/blog--reach-down + the declares edges). Design + roadmap (relations as
first-class posts, typed relations, type algebra, constraints) in
plans/relations-as-posts.md.
host conformance 283/283 (+5: is-a pool includes type roots, excludes plain posts,
tagged anchored by tag, related = all, is-a relate-options offers Article).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
The non-browser platform is a console/TUI renderer: the engine's platform ops map
to a text-node tree (harness-web's mock DOM is ~90% there), render-to-console
prints it, a raw-stdin input loop drives simulate-click/input. The same
~relate-picker runs unchanged in a terminal — browser is one platform binding,
console another, test harness a third.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Durable plan for the next step: drive the engine against the mock platform
(spec/harness.sx :fetch + web/harness-web.sx simulate-click/DOM asserts), so
fetch->swap->DOM behavior is tested without a browser — the same engine could
drive a non-browser target. Phases: PoC (relate-delete), port the rest, trim
Playwright to WASM-boot + content-addressed-load, stretch = non-browser renderer.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Turn the blog into a SPA using the SX-htmx engine (web/engine.sx) booting the
WASM OCaml kernel (same evaluator as the server) in-browser, with sx-boost
fragment-swapping every link into #content.
Server side DONE + verified:
- lib/host/static.sx: GET /static/** serves shared/static via the file-read
primitive (ctype by ext, traversal-guarded, 404 on missing). Wired into
serve.sh (module + route group). Tested: kernel JS + .wasm binary-exact.
- host/blog--page is now the SPA shell: full page = WASM boot scripts +
sx-boost=#content wrapper + #content; on SX-Request:true returns ONLY the
inner content fragment for the engine to swap. All 13 handlers thread req.
- docker-compose mounts ./shared/static.
- lib/host/playwright/spa-check.{spec.js,run-spa-check.sh}: boot/boost/swap/back.
Client side: the WASM kernel BOOTS (SxKernel object, data-sx-ready=true, web
stack loads). BLOCKER: the bundled .sxbc throw 'VM: unknown opcode 0' vs this
worktree's kernel -> .sx source fallback -> boot.sx source fails 'Expected
list, got string' -> process-boosted never binds links (boosted 0/N). Fix =
rebuild a consistent WASM bundle (recompile .sxbc against the kernel via
scripts/sx-build-all.sh); the browser wasm target isn't built here yet. See
plans/host-spa.md. Live NOT redeployed (stays on pre-SPA process).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
The serving-JIT perform-in-HO-callback miscompile (map/rest/drop wrong
CALL_PRIM args → blank pages, empty picker) is now fully fixed, so the host
runs 100% serving JIT with NO jit-exclude.
sx-vm-extensions 81177d0e resolves a suspended HO-callback's IO inline
(instead of unwinding the native map/filter loop and corrupting the stack),
but ONLY when a synchronous resolver is installed (!_cek_io_resolver = Some).
The host serves via the http-listen primitive, whose handler drove durable IO
through cek_run_with_io with the resolver = None — so it hit the unwinding
path the fix doesn't cover. (The vm-ext repro installed a resolver, so it
never exercised the host's real no-resolver path.)
Fix: extract cek_run_with_io's IO resolution into resolve_io_request, and have
http-listen install _cek_io_resolver := Some (fun req _ -> resolve_io_request
req) — byte-identical resolution, so the inline path resolves durable reads
exactly as the CEK loop would.
Verified: host conformance 271/271; ephemeral durable server at 100% JIT (no
exclude) zero fallbacks + real content + related shown + picker 12 candidates;
live blog.rose-ash.com home/post/tags 200 with related posts, zero error-log
lines; relate-picker Playwright 4/4 (infinite-scroll + filter + relate).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Carry the sx-vm-extensions loop's serving-JIT handoff notes, and add a
correction: the post-page slowness was the durable read count (fixed in
0a2f1a61), not the (long-gone) Smalltalk render path — so SX_SERVING_JIT is an
optional general speedup, not the perf blocker.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
lib/artdag/post.sx (job<->feed post object, post-id = content-id, self-verifying wire,
post-run for peers) per the host loop's 'jobs as posts' direction. Additive. artdag 225/225.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
lib/artdag/post.sx — the artdag-side projection for 'a job is a type of post' (per the
host loop). job->post-object: {:type artdag/job :id <output content-id> :wire <dag->wire>},
post-id = content-id = natural AP object id. post-object-verify binds the id to the payload
(record ids recompute + post id present), rejecting tampered params/bogus ids. String
transport for the feed/SXTP body; post-run lets a peer decode->run->result, content-address
cache-hitting. Activity wrapping stays host-side. post 12/12, total 225/225.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
lib/artdag/schedule.sx on lib/minikanren: slot var per node, fd-lt per edge, fd-label
search. schedule-asap (smallest-first labeling) agrees exactly with plan.sx greedy Kahn
waves (cross-validated); schedules enumerates all valid schedules; schedules-capped
filters to <=cap per slot; schedule-valid? independent dep check. Adds a 'schedule' suite
to conformance.sh loading the minikanren CLP(FD) stack. Completes the optional Phase 3/7
miniKanren box. schedule 15/15, total 213/213.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Conformance gate + both smoke tests (smoke_kernel_route 6/6,
smoke_federate 6/6) still pass cold on m2 tip cd0de8cb. Dry-run
rebase onto current origin/architecture (0963aa51) shows 109
commits to replay with first conflict at m2's 24e3bf53 — the
binary_to_list/list_to_binary fix that landed independently on
both branches. Textual diff of the runtime.sx changes is identical
on both sides; only the scoreboard files differ. Resolution =
git rebase --skip on m2's duplicate substrate-fix commits.
No code conflict expected on the substantive m2 work (Blockers
#4 :pending-args scheduler fix, er-bif-http-listen rewrite,
er-bif-httpc-request, all of next/**).
The :pending-args extension to er-sched-step-alive! (03c32cda)
is substrate-shaped and only lives on m2 — should propagate to
loops/erlang, but that propagation belongs to the loops/erlang
loop, not this one.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Plan: plans/typed-posts-and-relations.md. "Typing is just relating to a type",
types are posts. Phase 1 lifts the hard-coded kind:"related" into a parameter,
driven by one registry — the spine the later phases (type resolution, tags,
picker) build on. Zero user-visible change.
- host/blog-rel-kinds registry: {kind,label,symmetric,candidates[,inverse-label]}
for related (symmetric) / is-a / tagged (directed). One place knows each kind's
direction, label, and candidate set.
- host/blog-relate!/unrelate! take a kind; symmetric kinds write both directions,
directed kinds write one. host/blog-out/in read children/parents per kind;
host/blog-related = out(slug,"related") (back-compat).
- relate/unrelate routes carry a `kind` form field (default "related"), validated
against the registry. delete drops edges across ALL kinds + both directions.
6 tests: symmetric reads both sides, directed writes one (inverse via host/blog-in),
unrelate is kind-scoped, unknown kind rejected, default kind = related. 244/244;
Playwright picker 4/4 (related path unchanged).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Enabling the epoch serving-mode JIT globally regressed continuation-based guest
interpreters (the epoch mode is the shared command channel every loop's
conformance runner uses). Two-part fix:
1. SAFE DEFAULT GATE. register_jit_hook in the persistent server branch is now
opt-in via SX_SERVING_JIT=1 (default OFF). Default behaviour is unchanged
(no JIT in epoch serving) → zero regression for sibling loops. The
content/Smalltalk page server opts in.
2. GENERAL FIXES + per-guest interpret-only declarations:
- callable? (sx_server/run_tests/integration_tests/mcp_tree) now accepts
VmClosure. A JIT-compiled higher-order function returns its inner closure
as a VmClosure; callable? previously rejected it, so scheme-apply's
(callable? proc) guard failed with "not a procedure: <vm:anon>".
- jit-exclude! gains a trailing-"*" namespace-prefix form
(Sx_types.jit_excluded_prefixes), the robust way to mark a whole guest
interpreter interpret-only (a name-list misses functions in extra files —
it left erlang's vm/dispatcher JIT'd and 13 tests short).
- Per-guest exclusions in each guest's runtime.sx:
scheme "scheme-*" "scm-*" erlang "er-*" "erlang-*"
prolog "pl-*" common-lisp "cl-*" "clos-*"
js "js-*" haskell "hk-*"
Verified under opt-in JIT (== CEK, no hang): smalltalk 847/847, scheme/flow
166/166, erlang 530/530, prolog 590/590, apl 152/152, js 147/148. Residual
(documented, protected by the default gate): common-lisp 6 fails in advanced
suites (parser-recovery/debugger/CLOS/MOP). lua (0/16) and tcl (3/4) fail
identically on CEK — pre-existing, not JIT. run_tests --jit/no-jit unchanged.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
The editor is the interactivity layer — it belongs on the --http island pipeline
(SSRs + hydrates islands), not the http-listen host, and needs browser/Playwright
iteration which this worktree lacks. plans/blog-editor-island.md is the handoff:
goal, architecture (docs-side island -> host /new), the live host contract
(form-urlencoded title/sx_content/status -> 303), the sx_content markup to emit
(standard tags, NOT legacy ~kg-* cards), island authoring gotchas, and pointers.
Host side is ready (ingest proven; CORS on request). Phase 5.5 marked handed off.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Pull out the debt that revived the legacy editor: removed kg-compat.sx (uncommitted
bare->namespaced kg-card aliases), the ./blog container mount, the legacy
sx-editor.js + hardcoded asset URLs + ~editor/sx-editor-styles reuse at /new, and
the blog/sx preloads. /new is now a clean minimal form.
Finding that reshapes Phase 5: render-page (5.1) renders STATIC component trees
but is NOT the full evaluator — a component with a data loop ((map fn items) over
(unquote data)) errors 'Not callable: nil'. So clean dynamic component pages + a
native island editor need the aser SSR pipeline (5.2), not just render-page.
Posts still render via per-block guarded render-page; unsupported editor cards
(~kg-md) show placeholders by design (no alias shim). All endpoints 200, boot clean.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
register_jit_hook is now installed in the persistent (epoch) serving-mode
branch of sx_server.ml, not just --http/cli/site. Smalltalk-on-SX conformance
under JIT is 847/847 — identical to the no-JIT baseline; Datalog 356/356.
run_tests --jit/no-jit are byte-identical before/after (no regression).
Five distinct root causes fixed (not one "miscompile"):
1. Serving mode never loaded lib/compiler.sx, so JIT used the native
Sx_compiler.compile stub (arity-0 bytecode, params as GLOBAL_GET →
"VM undefined: <param>"). Server-mode branch now loads compiler.sx
before registering the hook, matching http/cli/site.
2. compile-cond / compile-case-clauses / compile-guard-clauses only treated
keyword :else and true as the catch-all, not the bare symbol `else` that
the CEK's is-else-clause? accepts → GLOBAL_GET "else". (lib/compiler.sx)
3. OP_DIV produced a float for non-divisible Integer/Integer (1/2 → 0.5)
instead of the exact Rational the "/" primitive returns. Now delegates to
the primitive, matching CEK. (sx_vm.ml)
4. OP_EQ / _fast_eq lacked Rational/ListRef cases that the "=" primitive's
safe_eq has → (= 1/2 1/2) false under JIT. OP_EQ now delegates non-scalars
to the "=" primitive; _fast_eq gained rational + ListRef. (sx_vm.ml,
sx_runtime.ml)
5. Continuation-based control flow (Smalltalk ^expr non-local return, block
escape, exceptions via call/cc) can't run in the stack VM. New data-driven
exclusion set Sx_types.jit_excluded + `jit-exclude!` primitive, consulted in
jit_compile_lambda (covers both the CEK hook and vm_call's tiered path).
lib/smalltalk/eval.sx self-declares its continuation dispatch core
interpret-only; pure helpers still JIT. The SUnit suite-runner test helper
pharo-test-class miscompiles mid-loop and is excluded in tests/tokenize.sx.
Also adds SX_JIT_DENY / SX_JIT_ONLY env-var bisection filters to the serving
hook. Known residual documented in plans/jit-bytecode-correctness.md: the hook
re-runs a failed VM execution via CEK (correct result, possible duplicate side
effects); adopting run_tests' propagate-don't-rerun semantics is deferred to
avoid changing shared VM/CEK behavior under this loop.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
KERNEL: add a render-page primitive (sx_server.ml, persistent mode) that renders
an UNEVALUATED SX expression with the server env via sx_render_to_html.
render-to-html expands defcomp components and collects keyword attrs itself; SX
handlers can't reach the server env, so the prim supplies it. Fixes the attr
mangling — bare render-to-html on an EVALUATED component tree turns (form :id ..)
into <form>idpost-new-form..; rendering the unevaluated expr keeps :id an attr.
HOST: lib/host/page.sx — host/page (expr -> HTML response) + host/page-route
(mount on a GET path). New page suite (8 tests) proves a generic attributed +
nested component renders correctly through a host route; verified ~editor/form
renders right too. This is the component-render step of the generic
interactive-SX-page capability; shell + static assets + hydration (5.2-5.4) next.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Frame the editor as one instance of a general gap: the host serves JSON + static
content but cannot serve interactive SX component/island pages. Scope the generic
capability — reuse the kernel's existing shell pipeline (~shared:shell/
sx-page-shell + http_inject_shell_statics + http_render_page) rather than
reinvent — in 5 gated sub-steps: page-render from a handler, shell statics,
static-asset serving, island hydration, editor POC. Documents why render-to-html
alone fails (mangles evaluated-component attributes) and that component SSR is
slow until the JIT loop lands. Modern editor = SX reactive island (defisland +
signals) over a content-on-sx model; replace the legacy Lexical/Koenig editor,
don't resurrect it (the POST /new ingest already speaks sx_content).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
host/blog-open-create-routes mounts POST /new with error-trapping but NO auth
(create-only; no PUT/DELETE), so the SX editor can publish to the host
end-to-end on the experimental subdomain. VALIDATED LIVE: editor-style
form-urlencoded POST -> 303 -> post renders at /<slug>/ and lists on /.
Deliberate short-lived public write hole (create-only, obscure subdomain).
MUST be gated before real use: Caddy basicauth on /new, or session auth.
Swap host/blog-open-create-routes -> host/blog-write-routes <resolver> to gate.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Pivot blog to the SX editor's content model. The editor (blog/sx/editor.sx)
emits sx_content = SX element markup, NOT content-on-sx CtDoc blocks. So a post
is now a {slug,title,sx_content,status} record in the durable persist KV, and a
post page is render-to-html(parse sx_content) — server-side, static, no client
runtime needed to view.
Endpoints: GET / (HTML index), /<slug>/ (rendered post), /posts (JSON list),
/new (create form); POST /new (form-urlencoded editor ingest, slug from title,
303 redirect), POST /posts (JSON create), PUT/DELETE /posts/<slug>. Writes
behind auth+ACL (edit/blog). Dropped the content-on-sx/Smalltalk preload chain;
added spec/render + web/adapter-html (render-to-html) + lib/dream/form.
BONUS: render-to-html is ~0ms (vs the 2s content-on-sx Smalltalk asHTML) — it
doesn't hit the JIT-miscompiled path, so blog rendering is no longer slow.
Live: blog.rose-ash.com/ lists posts, /welcome/ renders instantly. Reads live;
the form-ingest write path needs an auth decision before going live (browser
forms can't send bearer; needs session or a Caddy basicauth gate).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
CRUD on the durable content store, per-request IO:
GET /posts list (public) -> [{slug,title}]
GET /<slug>/ read (public) -> HTML / 404
POST /posts create (auth+ACL edit/blog) -> 201/400/409
PUT /posts/<slug> update title+body -> 200/400/404
DELETE /posts/<slug> delete (truncate) -> 200/404
Writes behind the auth+ACL pipeline; create=insert ops, update=op-updates,
delete=stream truncate. 16 new CRUD tests (full lifecycle + 401/403/409/404).
GOTCHA fixed: is a reserved CEK special form — a (let ((guard ...)))
helper was shadowed by it ((guard h) ran the guard special form -> 'first:
expected list'). Renamed to host/blog--protect; namespace-prefix all helpers.
HARDENING: conformance.sh now FAILS LOUD on load/eval errors. A test file that
errors mid-load silently truncates its suite and reports a false green (this hid
the CRUD failure as 'blog 13 passed, 0 failed'). The runner greps for error
markers and aborts. Documented the SX gotcha set + prevention ladder in the plan.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
KERNEL (sx_server.ml): route http-listen handlers through cek_run_with_io
instead of bare Sx_runtime.sx_call, so handlers resolve per-request IO
(durable persist reads/writes) via the same IO-driving runner the REPL uses.
Verified: per-request read+write, 10 concurrent writes (15 on disk, no
corruption), handler errors don't crash the server, http contract 6/6.
BLOG: fully dynamic — host/blog-post reads the post from the durable store
(content/head) AND renders (content/html) per request, no in-memory view, no
cached output. Possible because of the IO fix. Honest ~2s due to interpreted
Smalltalk render.
Render speed is NOT solved here: the JIT (precompiler) isn't installed in the
serving mode and currently miscompiles the Smalltalk evaluator's nested ASTs
(enabling it breaks ~60% of tests). Fixing the JIT is a separate, high-payoff
effort. Documented in the plan.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Blog posts now live in the durable SX store (persist/durable-backend, on-disk
under $SX_PERSIST_DIR — already built: sx_persist_store.ml + lib/persist/
durable.sx). Publishing appends insert ops to the slug's content stream; posts
survive restarts (verified: seq/log stable across container restart, re-seed
idempotent).
Read path: http-listen handlers can't drive per-request perform/IO (sx_call
doesn't resolve the CEK IO suspension the way the main loop does), so posts are
materialised from the store into an in-memory view at boot (host/blog-load-all!
+ host/blog-seed!) and request handlers read the view — perform-free. Store is
source of truth; view is a boot-rebuilt cache.
Deploy: docker-compose.dev-sx-host.yml mounts /root/sx-host-persist (chowned to
appuser 10001) at /data/persist; SX_PERSIST_DIR set. blog.rose-ash.com/welcome/
live. Per-request-IO kernel fix tracked in the plan as the next task.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
lib/host/blog.sx serves blog posts as HTML at GET /<slug>/ (the original
strangler target, Quart blog post_detail). A post is a content-on-sx CtDoc
rendered via content/html; anonymous + world-visible. In-memory slug->doc
registry now (host/blog-lookup swappable for a persist-backed content stream
later, handler/route unchanged). :slug catch-all mounted LAST so /feed,
/health, /internal/* take precedence. Needs the Smalltalk+persist+content
preload chain + (st-bootstrap-classes!)+(content/bootstrap!) — blog.sx
self-bootstraps at load. serve.sh loads the chain + seeds a welcome post.
Ledger gains the migrated blog post-detail (off-Quart 50% -> 53%).
LIVE: blog.rose-ash.com/welcome/ renders real HTML through Cloudflare->Caddy;
/feed still JSON (precedence verified), unknown slug 404.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Promote lib/host into the docker stack behind blog.rose-ash.com (reusing a
down Quart subdomain). New compose service sx_host runs lib/host/serve.sh on
externalnet; Caddy reverse-proxies blog.rose-ash.com -> sx-dev-sx_host-1:8000.
hosts/ fix: http-listen bound inet_addr_loopback only, unreachable from other
containers. Add SX_HTTP_HOST env (default loopback for tests/local; stack sets
0.0.0.0) in sx_server.ml. serve.sh made container-friendly (SX_PROJECT_DIR).
Verified live through Cloudflare->Caddy: /health, /feed, relations reads serve
real JSON; / 404 (no root route yet). rose-ash.com untouched. Conformance
145/145 green with the rebuilt binary.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
lib/host/server.sx adapts the native http-listen contract (string-keyed
{method,path,query,headers,body} -> {:status :headers :body}) to the Dream
host app: native->dream reassembles path+query into a target dream-request
parses; dream->native is near-identity (dream-response is already
{:body :headers :status}). host/serve = http-listen over host/native-handler
. host/make-app. lib/host/serve.sh boots the full module set and serves in the
foreground (container-entry shaped). Verified live on a host port: health/feed/
feed?actor=/relations reads serve real JSON, unknown->404. server suite (13)
covers the bridge as pure functions.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Migrate the container relations write actions onto lib/relations: POST
/internal/actions/attach-child + /detach-child dispatch to relations/relate
and relations/unrelate over the same "type:id" node model, behind the
auth+ACL pipeline (wrap-errors . require-auth . require-permission), mirroring
POST /feed. Closed-loop test: attach -> visible via get-children -> detach ->
gone; 401/403/400 guards. Ledger now models the full relations surface (7
endpoints): container reads+writes migrated, typed relate/unrelate/can-relate
proxied (registry+cardinality validation not in lib/relations). Off-Quart
coverage 45% -> 50%.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Migrate the two internal relations read queries onto lib/relations: GET
/internal/data/get-children + /get-parents dispatch to relations/children
and relations/parents. Bridge the Quart (type,id) node key to a graph atom
symbol "type:id" with relation-type as the edge kind; optional child/parent
-type params filter by "type:" prefix. Golden tests pin each endpoint to
subsystem-call + envelope. Ledger entries flipped to :migrated (off-Quart
coverage 27% -> 45%).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
