host: mac_fb_screenshot, fb_export cache, exact-bundle emulator launch, password-free etherhelper relaunch - #259
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LoetLuemmel wants to merge 4 commits into
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host: mac_fb_screenshot, fb_export cache, exact-bundle emulator launch, password-free etherhelper relaunch#259LoetLuemmel wants to merge 4 commits into
LoetLuemmel wants to merge 4 commits into
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… fallback (32nd tool) host/fb_export.py wraps the fb-export spike (macemu branch fb-export, a6e328b): SIGUSR1 the local Basilisk II, read the ABFB dump (pixels + palette + last dirty-tile scan), decode to PNG host-side. 12-31 ms/frame against ~140 ms/look on the bridge delta path; works while a tracking loop starves the daemon. The safety property carries the design: SIGUSR1 TERMINATES an emulator without the handler, so the running pid's own executable is read for the BASILISK_FB_DUMP marker before any signal — a published (unpatched) bundle, or SheepShaver, is refused without being touched, and the MCP tool falls back to mac_screenshot with the reason in the reply (fallback=false to fail fast in a timing-sensitive loop). Verified live against the running unpatched bundle: refusal + bridge fallback + fail-fast arm, emulator untouched. The positive fb path was measured in the spike (2026-08-30); it needs the fork build running. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_012Xfij6cRznRfVmKu6gyq1p
…3 ms per tool capture The binary scan caches on (dev, ino, size, mtime); the (pid, exe) pair is cached but re-verified with one ps spawn per capture — deliberately not trusted blindly, since a reused pid would put SIGUSR1 into an unrelated process. capture_png meta now echoes the region. Positive fb path verified live (fork build, guest booted): bench 15-35 ms, MCP tool 33.5 ms avg over 20 captures, region crop pixel-exact. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_012Xfij6cRznRfVmKu6gyq1p
open -a resolves by bundle id; with two BasiliskII copies on disk (published bundle + fb-export fork build) it launched the other one — twice, 2026-08-31. A plain `open <path>` opens exactly the named bundle. local.env stays untracked and now points at the fork build for the operator's fb-export trial (started 2026-08-31). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_012Xfij6cRznRfVmKu6gyq1p
…p when it is already placed, add setuid_etherhelper.sh start_stack.sh: on the etherhelper branch the only privileged act is placing HOST_IP on the default-route interface. If the alias is already there (and not stranded on the wired NIC) there is nothing to do, so the admin dialog is skipped. The alias persists across BasiliskII relaunches, so every relaunch within a login session is now password-free; only a fresh macOS boot prompts once. setuid_etherhelper.sh: makes a bundle's etherhelpertool setuid-root so the patched runtool.c spawns it directly, without the authorization dialog. Documents the App-Management trap: chown-to-root inside a bundle is refused once any instance of that bundle id has been launched, so setuid a FRESH build before its first launch and mv it into place. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_017EM4V2zZkSxN5v5FK8yChs
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Four host-side commits from the fb-screenshot work (2026-08-31 to 2026-09-02):
mac_screenshotwhen the fb path is unavailable (sourcein the reply says which answered). 32nd tool.open <path>, neveropen -a: the bundle-id trap hit twice).host/tools/setuid_etherhelper.shdocuments the setuid route (two-file patch in the fork build).Verified live on the fb-export Basilisk build; the fb path is what the THINK-C compile gate and the alert-frame capture of the training evaluation run on (xavier-eval).
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https://claude.ai/code/session_017EM4V2zZkSxN5v5FK8yChs