Pure move: every line of the former 5,047-line runner lands verbatim in one
module (four private helpers gain `export` for cross-module use):
binary, screen (absorbs test/helpers/pty-screen.ts, which now re-exports it),
launch, session (PtyDriver), judge, classify, auq, plan-native, boundaries,
runners/{observation,counting,floor}. claude-pty-runner.ts re-exports the
original public surface by name; pty/ modules import siblings directly.
Tests that read the runner's source text:
- rewritten as behavioral: the unit test's model-pin tripwire (fake CLI argv:
fallback chain, --model before extraArgs, hermetic --strict-mcp-config),
pty-skill-seeding-wiring (runners through the fake driver; launcher through
a fake CLI reporting CLAUDE_CONFIG_DIR). The "three wrappers forward model"
grep is replaced by the runners' fake-driver launch assertions.
- pty-screen-session / pty-screen-supervision: stop copying runner source;
they mock.module the real pty/screen.ts (and the fixture cleanup) instead.
- re-pointed to the owning module (they execute a sliced runner body with
injected boundaries; no seam exists for those boundaries yet):
eng-seeded-completion-ai, plan-floor-permission, plan-create-prepublication,
plan-count-completion; hermetic-wiring's source guard now reads pty/launch.ts
and scans every pty/ module for raw process.env spreads.
- plan-count-timeout and pty-output-wake mock the viewport at pty/screen.ts.
