plan: tick Phase 14 Spec+JS+Tests+Commit — OCaml step next

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

plans/agent-briefings/primitives-loop.md

@@ -430,14 +430,14 @@ Primitives to add:
 - `close-port` `port` → void
 
 Steps:
-- [ ] Spec: add port type + eof-object to evaluator; implement all primitives.
+- [x] Spec: add port type + eof-object to evaluator; implement all primitives.
       Ports are mutable objects with a position cursor (input) or accumulation buffer (output).
 - [ ] OCaml: add `SxPort` variant covering string-input-port and string-output-port;
       Buffer.t for output, string+offset for input.
-- [ ] JS bootstrapper: implement port type.
-- [ ] Tests: 25+ tests in `spec/tests/test-ports.sx` — open/read/peek/eof, output accumulation,
+- [x] JS bootstrapper: implement port type.
+- [x] Tests: 25+ tests in `spec/tests/test-ports.sx` — open/read/peek/eof, output accumulation,
       read-line, write-char, close.
-- [ ] Commit: `spec: string ports (open-input-string/open-output-string/read-char/etc)`
+- [x] Commit: `spec: string ports (open-input-string/open-output-string/read-char/etc)` — 3d8937d7
 
 ---
 
@@ -748,6 +748,7 @@ _Newest first._
 - 2026-04-25: Phase 1 spec step done — all 10 vector primitives in spec/primitives.sx have full :as type annotations, :returns, :doc; make-vector optional fill param added.
 - 2026-04-25: Phase 1 OCaml step done — bounds-checked vector-ref/set!, vector-copy now accepts optional start/end, spec/primitives.sx doc updated. 10/10 r7rs vector tests pass, 4747 total (394 pre-existing hs-upstream fails unchanged).
 - 2026-04-25: Phase 0 complete — stopped CL/APL/Ruby/Tcl loops (all 4 idle at shell); confirmed E38 (tokenizer :end/:line) and E39 (WebWorker stub) both have implementation commits.
+- 2026-05-01: Phase 14 Spec+JS+Tests+Commit done — port type {_port,_kind,_source/_buffer,_pos,_closed}; eof singleton; 15 primitives in spec/primitives.sx (stdlib.ports) + platform.py; 39/39 tests in test-ports.sx. Committed 3d8937d7. OCaml step next.
 - 2026-05-01: Phase 13 OCaml done — Char of int in sx_types.ml; #\ reader in sx_parser.ml; all char primitives in sx_primitives.ml; fixed get_val for Integer n list indexing (was Number-only); fixed raw_serialize for Integer/Char. 4493/4493 (+43, zero regressions). b939becd.
 - 2026-05-01: Phase 13 Spec+JS+Tests+Commit done — SxChar tagged {_char,codepoint}; char? char->integer integer->char char-upcase/downcase; 10 comparators (ordered+ci); 5 predicates; string->list/list->string as platform primitives; #\a #\space #\newline reader syntax in spec/parser.sx; js-char-renames dict in transpiler.sx; 43/43 tests pass JS (2254/4745). Committed 4b600f17. OCaml step next.
 - 2026-05-01: Phase 12 complete — gensym + symbol interning. gensym_counter/gensym/string->symbol/symbol->string/intern/symbol-interned? in spec + OCaml + JS. Fixed ListRef case in seq_to_list (both hosts). 19 tests, all pass. OCaml 4450/1080, JS 2205/2497. Commits: edf4e525 Spec, 0862a614 OCaml+Tests.