The test rebuilt the feature list by hand, because a package cannot import a
main, and it drifted three times in one session — the dialect, notation, Compose
— each caught by a failing case rather than by the copy.
The obvious fix was a composition package under internal/ext, and it was the
wrong one: ADR-0069 forbids a feature importing its sibling, so that package
would have failed the gate on its first build and the invariant would have been
weakened one commit after becoming mechanical. Moving the test is smaller and
points the other way — cmd stays the only place a feature is named, which is
what extensions.md asks for, and wire_test.go was already here for the same
reason.
runServe and the test now call one function for the renderer, so there is no
list to keep in step. Four files named a feature before; three do now, all of
them package main, plus a benchmark that deliberately wires one extension to
measure the render path and never claimed to be the shipped list.
The core ceiling paid for it rather than being raised a third time: `given` was
a helper with one caller and is now inlined into the only function that used it.
core 2842/2850.
Latent item cleared — the one that was marked due.
Claude Opus 5andbdeshi
751ab9c06f