Block 5109
( sdk.4th -- SDK v1.9.0 scoping. Loads the cookbook       )
( capsules (turtle.4th, doe.4th), a discoverable SDK      )
( vocabulary entry point, and raises FENCE once           )
( everything is loaded, so a developer at the REPL can    )
( FORGET their own scratch work afterward without         )
( disturbing any of this. Kernel-only (EXEC is kernel-    )
( only); REPL-invoked -- S" sdk.4th" EXEC -- not part of  )
( init.4th's boot sequence, matching turtle.4th's own     )
( choice. NOTE: VOCABULARY/DEFINITIONS here is            )
( organizational, not isolating -- this VM's word lookup  )
( is a flat dictionary scan, so SDK words remain           )
( globally callable like any other word, both before and  )
( after this capsule loads. Verified directly on the       )
( hosted build before writing this file.                   )
VOCABULARY SDK

Block 5110
( Load the cookbook capsules this SDK re-exports. )
S" turtle.4th" EXEC
S" doe.4th" EXEC

Block 5111
( SDK's own words, defined into the SDK vocabulary for   )
( introspection -- see the note above, they are just as  )
( callable from FORTH context as anywhere else.          )
SDK DEFINITIONS

: SDK-VERSION ( -- )
  ." SDK v1.9.0 (scoping)" CR ;

Block 5112
: SDK-HELP ( -- )
  ." SDK vocabulary: turtle.4th + doe.4th + FENCE." CR
  ." Turtle graphics (docs/working/architecture/" CR
  ."   TURTLE-GRAPHICS-HOWTO-20260819.md):" CR
  ."   HOME CS FORWARD BACK LEFT RIGHT PENUP PENDOWN" CR
  ."   SETCOLOR SETXY SETHEADING POLYGON STAR TURTLE-DEMO" CR

Block 5113
  ." DoE library (docs/working/architecture/" CR
  ."   DOE-LIBRARY-HOWTO-20260819.md):" CR
  ."   DOE ( -- )  or  seed n-reps EXEC-DOE" CR
  ." SDK-VERSION prints the release tag." CR ;

Block 5114
( Back to FORTH context -- CURRENT no longer targets  )
( SDK, so anything typed at the REPL after this loads  )
( defines normally.                                    )
FORTH DEFINITIONS

Block 5115
( Raise FENCE now that the base wordset, turtle.4th,  )
( doe.4th, and this file's own words are all loaded -- )
( a developer can FORGET their own later scratch       )
( definitions without being able to reach back          )
( through any of this.                                  )
FENCE
SDK-VERSION
." Loaded. Run SDK-HELP for the word list." CR