- ~video-player defisland persists across SPA navigations (morph-safe)
- Clicking "reactive" cycles colour (signal) + fetches random YouTube video (sx-get)
- sx-trigger="fetch-video" + dom-first-child check: video keeps playing on repeat clicks
- Close button (x) clears video via /api/clear-video hypermedia endpoint
- Autoplay+mute removes YouTube's red play button overlay
- Header restructured: logo in anchor, tagline outside (no accidental navigation)
- Flex centering on video container
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
New hierarchy: Geography (Reactive Islands, Hypermedia Lakes, Marshes,
Isomorphism), Language (Docs, Specs, Bootstrappers, Testing),
Applications (CSSX, Protocols), Etc (Essays, Philosophy, Plans).
All routes updated to match: /reactive/* → /geography/reactive/*,
/docs/* → /language/docs/*, /essays/* → /etc/essays/*, etc.
Updates nav-data.sx, all defpage routes, API endpoints, internal links
across 43 files. Enhanced find-nav-match for nested group resolution.
Also includes: page-helpers-demo sf-total fix (reduce instead of set!),
rebootstrapped sx-browser.js and sx_ref.py, defensive slice/rest guards.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- Add page-helpers-demo page with defisland ~demo-client-runner (pure SX,
zero JS files) showing spec functions running on both server and client
- Fix _aser_component children serialization: flatten list results from map
instead of serialize(list) which wraps in parens creating ((div ...) ...)
that re-parses as invalid function call. Fixed in adapter-async.sx spec
and async_eval_ref.py
- Switch _eval_slot to use async_eval_ref.py when SX_USE_REF=1 (was
hardcoded to async_eval.py)
- Add Island type support to async_eval_ref.py: import, SSR rendering,
aser dispatch, thread-first, defisland in _ASER_FORMS
- Add server affinity check: components with :affinity :server expand
even when _expand_components is False
- Add diagnostic _aser_stack context to EvalError messages
- New spec files: adapter-async.sx, page-helpers.sx, platform_js.py
- Bootstrappers: page-helpers module support, performance.now() timing
- 0-arity lambda event handler fix in adapter-dom.sx
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
EvalError moved to types.py. All 27 files updated to import eval_expr,
trampoline, call_lambda, etc. directly from shared.sx.ref.sx_ref instead
of through the evaluator.py indirection layer. 320/320 spec tests pass.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- Fix qq-expand in eval.sx: use concat+list instead of append to prevent
nested lists from being flattened during quasiquote expansion
- Update append primitive to match spec ("if x is list, concatenate")
- Rebuild sx_ref.py with quasiquote fix
- Make relations.py self-contained: parse defrelation AST directly
without depending on the evaluator (25/25 tests pass)
- Replace hand-written JSEmitter with js.sx self-hosting bootstrapper
- Guard server-only tests in test-eval.sx with runtime check
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- Rename /reactive-islands/ → /reactive/, /reference/ → /hypermedia/reference/,
/examples/ → /hypermedia/examples/ across all .sx and .py files
- Add 404 error page (not-found.sx) working on both server refresh and
client-side SX navigation via orchestration.sx error response handling
- Add trailing slash redirect (GET only, excludes /api/, /static/, /internal/)
- Remove blue sky-500 header bar from SX docs layout (conditional on header-rows)
- Fix 405 on API endpoints from trailing slash redirect hitting POST/PUT/DELETE
- Fix client-side 404: orchestration.sx now swaps error response content
instead of silently dropping it
- Add new plan files and home page component
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Client-rendered islands were re-hydrated by boot.sx because
renderDomIsland didn't mark them as processed. Hydration read
empty data-sx-state, overwriting kwargs (e.g. path) with NIL.
Fix: mark-processed! in adapter-dom.sx so boot skips them.
New plan: marshes — where reactivity and hypermedia interpenetrate.
Three patterns: server writes to signals, reactive marsh zones with
transforms, and signal-bound hypermedia interpretation.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
The ~sx-header island now shows the current page path (faded, after
the copyright) inside the copyright lake. Navigate between pages:
the path text updates via server-driven lake morph while the reactive
colour-cycling signal persists. Subtle visible proof of L2-3.
Also fixes Island &key param serialization in component-source helper.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Islands survive hypermedia swaps: morph-node skips hydrated
data-sx-island elements when the same island exists in new content.
dispose-islands-in skips hydrated islands to prevent premature cleanup.
- @client directive: .sx files marked ;; @client send define forms to browser
- CSSX client-side: cssxgroup renamed (no hyphen) to avoid isRenderExpr
matching it as a custom element — was producing [object HTMLElement]
- Island wrappers: div→span to avoid block-in-inline HTML parse breakage
- ~sx-header is now a defisland with inline reactive colour cycling
- bootstrap_js.py defaults output to shared/static/scripts/sx-browser.js
- Deleted stale sx-ref.js (sx-browser.js is the canonical browser build)
- Hegelian Synthesis essay: dialectic of hypertext and reactivity
- component-source helper handles Island types for docs pretty-printing
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- Configurable page shell (~sx-page-shell kwargs + SX_SHELL app config)
so each app controls its own assets — sx docs loads only sx-browser.js
- SX-evaluated sx-on:* handlers (eval-expr instead of new Function)
with DOM primitives registered in PRIMITIVES table
- data-init boot mode for pure SX initialization scripts
- Jiggle animation on links while fetching
- Nav: 3-column grid for centered alignment, is-leaf sizing,
fix map-indexed param order (index, item), guard mod-by-zero
- Async route eval failure now falls back to server fetch
instead of silently rendering nothing
- Remove duplicate h1 title from ~doc-page
- Re-bootstrap sx-ref.js + sx-browser.js
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Documents the self-hosting process for js.sx including the G0 bug
where Python's `if fn_expr` treated 0/False/"" as falsy, emitting
NIL instead of the correct value. Adds live verification page,
translation differences table, and nav entry.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- Update plan page with completion status and results
- Add ~bootstrapper-self-hosting-content component with live G0/G1 verification
- Add _self_hosting_data() helper: loads py.sx, runs it, diffs against G0
- Add "Self-Hosting (py.sx)" to bootstrappers nav and index table
- Wire /bootstrappers/self-hosting route
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
js.sx — SX-to-JavaScript translator + ahead-of-time component compiler.
Two modes: spec bootstrapper (replacing bootstrap_js.py) and component
compiler (server-evaluated SX trees → standalone JS DOM construction).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Plan for py.sx — an SX-to-Python translator written in SX that
replaces bootstrap_py.py. Covers translation rules, statement vs
expression modes, mutation/cell variables, five implementation
phases, fixed-point verification, and implications for multi-host
bootstrapping.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Lambda multi-body fix: sf-lambda used (nth args 1), dropping all but the first
body expression. Fixed to collect all body expressions and wrap in (begin ...).
This was foundational — every multi-expression lambda in every island silently
dropped expressions after the first.
Reactive islands: fix dom-parent marker timing (first effect run before marker
is in DOM), fix :key eager evaluation, fix error boundary scope isolation,
fix resource/suspense reactive cond tracking, fix inc not available as JS var.
New essay: "React is Hypermedia" — argues that reactive islands are hypermedia
controls whose behavior is specified in SX, not a departure from hypermedia.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- Effect and computed auto-register disposers with island scope via
register-in-scope; dispose-islands-in called before every swap point
(orchestration.sx) to clean up intervals/subscriptions on navigation.
- Map + deref inside islands auto-upgrades to reactive-list for signal-
bound list rendering. Demo island with add/remove items.
- New :bind attribute for two-way signal-input binding (text, checkbox,
radio, textarea, select). bind-input in adapter-dom.sx handles both
signal→element (effect) and element→signal (event listener).
- Phase 2 plan page at /reactive-islands/phase2 covering input binding,
keyed reconciliation, reactive class/style, refs, portals, error
boundaries, suspense, and transitions.
- Updated status tables in overview and plan pages.
- Fixed stopwatch reset (fn body needs do wrapper for multiple exprs).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
New top-level Philosophy section in sx-docs. Moved SX Manifesto and Strange
Loops from Essays, added three new essays: SX and Wittgenstein (language games,
limits of language, fly-bottles), SX and Dennett (real patterns, multiple drafts,
intentional stance), and S-Existentialism (existence precedes essence, bad faith,
the absurd). Updated all cross-references and navigation.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- signals.sx: add def-store/use-store/clear-stores (L3 named stores)
and emit-event/on-event/bridge-event (lake→island DOM events)
- reactive-islands.sx: add event bridge, named stores, and plan pages
- Remove ~plan-reactive-islands-content from plans.sx
- Update nav-data.sx and docs.sx routing accordingly
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- New nav entry in ~sx-main-nav (layouts.sx)
- Nav items: Overview, Demo, Plan link (nav-data.sx)
- Overview page: architecture quadrant, four levels, signal primitives,
island lifecycle, implementation status table with done/todo
- Demo page: annotated code examples for signal+computed+effect, batch,
cleanup, computed chains, defisland, test suite
- defpage routes: /reactive-islands/ and /reactive-islands/<slug>
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Adds optimistic-demo-data, action:add-demo-item, offline-demo-data
to boundary spec. Adds orchestration test spec to in-app test runner
with mocked platform functions.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Tests cover page data cache, optimistic cache update/revert/confirm,
offline connectivity tracking, offline queue mutation, and offline-aware
routing. Registered in test runner with mocked platform functions.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Design plan for client-side state via signals and islands — a second
sliding bar (reactivity) orthogonal to the existing isomorphism bar.
Covers signal primitives, defisland, shared state, reactive DOM
rendering, SSR hydration, and spec architecture.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
New essay arguing SX eliminates the entire conventional web toolchain
(bundlers, transpilers, package managers, CSS tools, dev servers, linters,
type checkers, framework CLIs) and that agentic AI replaces the code editor
itself. Links Carson Gross's "Yes, and..." essay with a Zen Buddhism framing
of the write→read→describe progression.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Moved on-demand CSS delivery protocol from docs/css into /cssx/delivery,
framed as one strategy among several. Removed the CSSX Components plan
(now redundant with the top-level /cssx/ section).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
New top-level section in sx-docs: /cssx/ with 6 pages:
- Overview: the idea, what changed, advantages
- Patterns: class mapping, data-driven, style functions, responsive, emitting CSS
- Async CSS: components that fetch/cache CSS before rendering via ~suspense
- Live Styles: SSE/WS examples for real-time style updates (noted as future)
- Comparisons: vs styled-components, CSS Modules, Tailwind, Vanilla Extract
- Philosophy: proof by deletion, the right abstraction level
Also:
- Remove CSSX from specs nav (spec file deleted)
- Fix renderer spec prose (no longer mentions StyleValue)
- Update On-Demand CSS essay summary
- Mark CSSX Components plan as done
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Add page-render-plan to deps.sx: given page source + env + IO names,
computes a dict mapping each needed component to "server" or "client",
with server/client lists and IO dep collection. 5 new spec tests.
Integration:
- PageDef.render_plan field caches the plan at registration
- compute_page_render_plans() called from auto_mount_pages()
- Client page registry includes :render-plan per page
- Affinity demo page shows per-page render plans
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
The entire parallel CSS system (StyleValue type, style dictionary,
keyword atom resolver, content-addressed class generation, runtime
CSS injection, localStorage caching) was built but never adopted —
the codebase already uses :class strings with defcomp components
for all styling. Remove ~3,000 lines of unused infrastructure.
Deleted:
- cssx.sx spec module (317 lines)
- style_dict.py (782 lines) and style_resolver.py (254 lines)
- StyleValue type, defkeyframes special form, build-keyframes platform fn
- Style dict JSON delivery (<script type="text/sx-styles">), cookies, localStorage
- css/merge-styles primitives, inject-style-value, fnv1a-hash platform interface
Simplified:
- defstyle now binds any value (string, function) — no StyleValue type needed
- render-attrs no longer special-cases :style StyleValue → class conversion
- Boot sequence skips style dict init step
Preserved:
- tw.css parsing + CSS class delivery (SX-Css headers, <style id="sx-css">)
- All component infrastructure (defcomp, caching, bundling, deps)
- defstyle as a binding form for reusable class strings
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Add :affinity :client/:server/:auto annotations to defcomp, with
render-target function combining affinity + IO analysis. Includes
spec (eval.sx, deps.sx), tests, Python evaluator, and demo page.
Fix critical bug: Python SX parser _ESCAPE_MAP was missing \r and \0,
causing bootstrapped JS parser to treat 'r' as whitespace — breaking
all client-side SX parsing. Also add \0 to JS string emitter and
fix serializer round-tripping for \r and \0.
Reserved word escaping: bootstrappers now auto-append _ to identifiers
colliding with JS/Python reserved words (e.g. default → default_,
final → final_), so the spec never needs to avoid host language keywords.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Replace the existing CSSX plan with a component-based approach where styling
is handled by regular defcomp components that apply classes, respond to data,
and compose naturally — eliminating opaque hash-based class names.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Server streams HTML shell with ~suspense placeholders immediately,
then sends resolution <script> chunks as async IO completes. Browser
renders loading skeletons instantly, replacing them with real content
as data arrives via __sxResolve().
- defpage :stream true opts pages into streaming response
- ~suspense component renders fallback with data-suspense attr
- resolve-suspense in boot.sx (spec) + bootstrapped to sx-browser.js
- __sxPending queue handles resolution before sx-browser.js loads
- execute_page_streaming() async generator with concurrent IO tasks
- Streaming demo page at /isomorphism/streaming with 1.5s simulated delay
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Pipeline definitions as .sx files evaluated by a minimal Python runner.
CI primitives (shell-run, docker-build, git-diff-files) are boundary-declared
IO, only available to the runner. Steps are defcomp components composable
by nesting. Fixes pre-existing unclosed parens in isomorphic roadmap section.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
read-spec-file is a server-only page helper. When the client router
tried to evaluate :content, it couldn't find the function. Move all
file reads into the :data expression (evaluated server-side) so
:content only references data bindings.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
