- new src/tests/testsupport/wslprobe.tcl (::punktest::wsl): memoized capability probe for the wsllinux constraint - default distro launches and unames as Linux, tools present (bash/mktemp/wslpath + sha1 tool), native tempdir file round trip; any failure -> skip with reason, so wsl.exe-present-but-unusable installs cannot false-positive. Staging helpers (staging_create/copy_in/run_in/cleanup) enforce the design: execution on the distro NATIVE filesystem only, shared /mnt used for one-way copy-in/out, the windows checkout never operated on from inside WSL (DrvFs slowness + cross-boundary stat differences that make git re-hash its index and fossil see phantom changes). Probe uses wsl -e invocations only (wsl --status/-l emit UTF-16)
- multishell.test: scriptwrap_multishell_exec_wsl_sh - the polyglot sh payload produces its marker under the distro bash from native staging (the direct isunix twin still skips on windows)
- new shell/testsuites/binscripts/runtimebash_wsl.test (8 tests): runtime.bash first-ever execution on real unix - multi-candidate run errors listing candidates, use/list/run round trip with argument passing, PUNK_ACTIVE_RUNTIME override, unknown/unselectable use errors, stale-active guidance, single-candidate fallback, offline list -remote (crafted cached sha1sums.txt + PUNKBIN_URL forced fetch failure), and the checkout-untouched guard (git status --porcelain identical before/after per acceptance)
- green on tcl 9.0.3 + 8.7 against Ubuntu-24.04/WSL2; suites skip cleanly when the probe fails; enablement/limitations in src/tests/AGENTS.md (known limitation: a present-but-HANGING wsl can stall the probe)
- GOALS.md G-059 flipped to achieved 2026-07-11; detail file records the outcome incl the UTF-16 discovery and the 512-byte label regression this work surfaced (caught by the guardrail suite as designed)
Assisted-by: harness=claude; primary-model=claude-fable-5; api-location=anthropic.com
- G-059: capability-probed WSL constraint for driving unix-side tests from Windows (multishell sh-payload execution, runtime.bash behaviour). Native-filesystem execution is a design constraint: per-test artifacts staged into a WSL-native tempdir with one-way copy-in/out, no repo checkout inside WSL for these cases, future full-suite mode via a separate native clone - the Windows checkout is never operated on via /mnt (DrvFs slowness + cross-boundary stat differences force git index re-hashing and fossil phantom changes; two VCS clients must not share a working tree). Acceptance includes verifying the Windows checkout git/fossil state is untouched by a WSL-gated run.
- G-060: QEMU guests as strictly external tooling behind a hypervisor-agnostic guest-driving contract (provision/stage/run/collect, push-based - same pattern as G-059; guests never share a working tree with the host). GPL-safe posture recorded: external-process invocation only, no QEMU binaries or derived code in punkshell or punkbin, guest OS images not redistributed - fetched/built per machine. First target FreeBSD x86_64; config home deferred to the buildsuites toml direction.
Assisted-by: harness=claude; primary-model=claude-fable-5; api-location=anthropic.com
Julian Noble