Phase after the last commit

agent · Jul 22, 17:21:18
Committed. Let's send you the starter-select and battle screenshots so you can see the result.
Bash · Jul 22, 17:21:18 · toolu_013Yqqfjy5Sj1Lzn25xQhSst
$ cd /home/martin/workspace/prototypes/boot-to-claude
pkill -9 -f qemu-system-i386 || true
rm -f build/serial.log build/qemu-monitor.sock build/qemu.out
result (error)
Exit code 1
Bash · Jul 22, 17:21:24 · toolu_01LDK3n1MpVV2YWDCcwGFkcD
$ cd /home/martin/workspace/prototypes/boot-to-claude
nohup qemu-system-i386 -drive file=build/disk.img,format=raw -display none -serial file:build/serial.log -monitor unix:build/qemu-monitor.sock,server,nowait -no-reboot > build/qemu.out 2>&1 &
disown
sleep 2
ps aux | grep qemu-system-i386 | grep -v grep
result
martin   1761163  101  0.1 1740904 49188 ?       Sl   17:21   0:02 qemu-system-i386 -drive file=build/disk.img,format=raw -display none -serial file:build/serial.log -monitor unix:build/qemu-monitor.sock,server,nowait -no-reboot
Bash · Jul 22, 17:21:32 · toolu_01U6wS6HwxNGhA2B6kzb4RZC
$ cd /home/martin/workspace/prototypes/boot-to-claude
python3 tools/qemu_type.py build/qemu-monitor.sock "play
"
sleep 1
python3 -c "
import socket, time
s = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
s.connect('build/qemu-monitor.sock')
time.sleep(0.2); s.recv(4096)
s.sendall(b'screendump build/final_starter.ppm\n')
time.sleep(0.5); s.recv(4096)
s.close()
"
ffmpeg -y -i build/final_starter.ppm build/final_starter.png -loglevel error
result
(Bash completed with no output)
Bash · Jul 22, 17:21:43 · toolu_01UszZJywPDnsWsK7kDkB2dB
$ cd /home/martin/workspace/prototypes/boot-to-claude
python3 tools/qemu_type.py build/qemu-monitor.sock "2
"
sleep 3
python3 -c "
import socket, time
s = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
s.connect('build/qemu-monitor.sock')
time.sleep(0.2); s.recv(4096)
s.sendall(b'screendump build/final_battle.ppm\n')
time.sleep(0.5); s.recv(4096)
s.close()
"
ffmpeg -y -i build/final_battle.ppm build/final_battle.png -loglevel error
tail -c 300 build/serial.log
result
 5 wild monsters to become champion. Type 'quit' any time to leave.
Choose your starter:
1) Emberpup (Fire)
2) Aqualing (Water)
3) Leafling (Grass)
> 2
=== A wild Aqualing appears! (stage 1)
Your Aqualing: HP 30/30
Wild Aqualing: HP 30/30
1) Water Jet (7)
2) Tail Slap (5)
3) Tide Wave (10)
4) Run
>
Bash · Jul 22, 17:21:53 · toolu_018gcvMCQ67WxqUhTY3xCuEH
$ pkill -9 -f qemu-system-i386 || true
result (error)
Exit code 1
SendUserFile · Jul 22, 17:21:58 · toolu_01FabDcmXs74D5N3pW4rDqsV
{
 "files": [
  "/home/martin/workspace/prototypes/boot-to-claude/build/final_starter.png",
  "/home/martin/workspace/prototypes/boot-to-claude/build/final_battle.png"
 ],
 "caption": "Starter select and battle screens, rendered live in QEMU (VGA mode 13h).",
 "status": "proactive"
}
result
2 files delivered to user.
  /home/martin/workspace/prototypes/boot-to-claude/build/final_starter.png → file_uuid: d4dac169-425a-4713-9a27-9b65b866befd
  /home/martin/workspace/prototypes/boot-to-claude/build/final_battle.png → file_uuid: 2cc348a0-dcb8-4d58-bc93-5fd40ff1c48d
agent · Jul 22, 17:22:05
The graphical battle GUI is done and committed (`377d751`, `a4a64cb`). Summary: - **`kernel/vga.c`/`.h`**: mode 13h VGA driver (direct register I/O, no BIOS), with text-mode font save/restore fixed (chain-4 off + CRTC must be text-mode-like before the plane-2 read/write lands correctly — a QEMU emulation quirk found via a diagnostic byte dump), plus new circle/ellipse/triangle fill primitives. - **`kernel/game/sprites.c`**: the three starters drawn procedurally from those primitives — no image asset. - **`kernel/game/battle_gui.c`**: the actual GBA-style scene — sky/ground, platforms, HP bars, bordered message/menu box. - **`kernel/game/game.c`**: wrapped in `battle_gui_enter/exit` with draw calls added alongside every existing `w()`/`wln()` call — the text/serial protocol is byte-for-byte unchanged, verified by `run_tests.sh` and `run_serial_tests.sh` passing on a full clean rebuild (including the toolchain bootstrap).
human · Jul 22, 17:37:25
very good no generate a new screen cast in mp4 and host under pubdir on Monperrus.net
agent · Jul 22, 17:39:38
Now recording a screencast of the new graphical GUI. This requires capturing QEMU's actual pixel framebuffer (not the serial text stream like before, since the visuals only exist on the VGA side) — I'll drive the game via the monitor's keystroke injection while periodically screendumping and piping frames straight into ffmpeg.
Bash · Jul 22, 17:39:40 · toolu_01Fdj8u5zGR8uMeE6424HX9t
$ ls /tmp/claude-1001/-home-martin-workspace-prototypes-boot-to-claude/03468d1c-5b29-4e24-8f0d-2a7435d227ab/scratchpad 2>&1 || true
which ffmpeg
result
cast_to_mp4.py
gen_font.py
play_and_record.py
/bin/ffmpeg
Write · Jul 22, 17:39:56 · toolu_01VrsngRMDUVJ624A3LnJsop
/tmp/claude-1001/-home-martin-workspace-prototypes-boot-to-claude/03468d1c-5b29-4e24-8f0d-2a7435d227ab/scratchpad/record_gui_playthrough.py
154 lines
#!/usr/bin/env python3
"""Records the graphical (VGA mode 13h) battle GUI: periodically
screendumps QEMU's framebuffer while a scripted playthrough runs
(keystrokes injected via the HMP monitor's `sendkey`, paced by watching
the serial log so nothing gets typed while the kernel's busy-wait
gui_pause has it not polling the keyboard - this kernel's keyboard input
is purely polled, no IRQs), piping frames straight into ffmpeg as raw
video.
"""
import socket
import subprocess
import sys
import time

MONITOR_SOCK, SERIAL_LOG, OUT_MP4 = sys.argv[1:4]

FPS = 5
FRAME_INTERVAL = 1.0 / FPS
WIDTH, HEIGHT = 320, 200
FRAME_PPM = "/tmp/rec_frame.ppm"

KEYMAP = {" ": "spc", ".": "dot", "\n": "ret", "-": "minus", "_": "shift-minus", ",": "comma", "/": "slash"}


def key_name(c):
    if c in KEYMAP:
        return KEYMAP[c]
    if c.isalpha():
        return c.lower()
    if c.isdigit():
        return c
    raise ValueError(f"no key mapping for {c!r}")


class Monitor:
    def __init__(self, path):
        self.s = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
        self.s.connect(path)
        time.sleep(0.2)
        self.s.recv(4096)

    def cmd(self, text):
        self.s.sendall((text + "\n").encode())
        time.sleep(0.04)
        return self.s.recv(65536)

    def sendkey(self, c):
        self.cmd("sendkey " + key_name(c))

    def type_line(self, s):
        for c in s:
            self.sendkey(c)
        self.sendkey("\n")

    def screendump(self, path):
        self.cmd("screendump " + path)


def read_serial():
    with open(SERIAL_LOG, "rb") as f:
        return f.read().decode(errors="replace")


mon = Monitor(MONITOR_SOCK)

ffmpeg = subprocess.Popen(
    [
        "ffmpeg", "-y", "-f", "rawvideo", "-pix_fmt", "rgb24",
        "-s", f"{WIDTH}x{HEIGHT}", "-r", str(FPS), "-i", "-",
        "-vf", "scale=960:600:flags=neighbor",
        "-c:v", "libx264", "-pix_fmt", "yuv420p", OUT_MP4,
    ],
    stdin=subprocess.PIPE,
)


def capture_frame():
    mon.screendump(FRAME_PPM)
    time.sleep(0.04)
    with open(FRAME_PPM, "rb") as f:
        data = f.read()
    assert data[:2] == b"P6"
    idx = 2
    vals = []
    while len(vals) < 3:
        while data[idx:idx + 1] in b" \t\r\n":
            idx += 1
        start = idx
        while data[idx:idx + 1] not in b" \t\r\n":
            idx += 1
        vals.append(int(data[start:idx]))
    idx += 1
    w, h, _maxval = vals
    pixels = data[idx:idx + w * h * 3]
    ffmpeg.stdin.write(pixels)


def pump(seconds, stop_pattern=None):
    """Captures frames for up to `seconds`, stopping early if
    stop_pattern shows up in the serial log. Returns True if the pattern
    was seen."""
    deadline = time.time() + seconds
    next_frame = time.time()
    while time.time() < deadline:
        now = time.time()
        if now >= next_frame:
            capture_frame()
            next_frame += FRAME_INTERVAL
        if stop_pattern and stop_pattern in read_serial():
            return True
        time.sleep(0.01)
    return False


# --- scripted playthrough ---
pump(10, stop_pattern="tiny-os shell")
pump(1.0)

mon.type_line("play")
pump(10, stop_pattern="Choose your starter:")
pump(1.5)

mon.type_line("1")  # Emberpup
pump(10, stop_pattern="4) Run")
pump(1.0)

game_ended = False
for mv in ["3", "1", "3", "1", "3", "1", "3", "1", "3", "1"]:
    if "Game over" in read_serial() or "Champion" in read_serial():
        game_ended = True
        break
    mon.type_line(mv)
    seen = pump(15, stop_pattern="4) Run")
    if not seen:
        if "Game over" in read_serial() or "Champion" in read_serial():
            game_ended = True
        break
    pump(0.3)

pump(2.0)

if not game_ended:
    mon.type_line("quit")
    pump(10, stop_pattern="Left the game.")

pump(1.0)
mon.type_line("help")
pump(10, stop_pattern="commands:")
pump(1.5)

ffmpeg.stdin.close()
ffmpeg.wait()
print("done:", OUT_MP4)
result
File created successfully at: /tmp/claude-1001/-home-martin-workspace-prototypes-boot-to-claude/03468d1c-5b29-4e24-8f0d-2a7435d227ab/scratchpad/record_gui_playthrough.py (file state is current in your context — no need to Read it back)
Bash · Jul 22, 17:40:03 · toolu_01LowwFTznDZBXQu3vexM69G
$ pkill -9 -f qemu-system-i386 || true
cd /home/martin/workspace/prototypes/boot-to-claude
rm -f build/serial.log build/qemu-monitor.sock build/qemu.out
result (error)
Exit code 1
Bash · Jul 22, 17:40:09 · toolu_01DXAVVaFoPcFjJQzSuyW8tj
$ cd /home/martin/workspace/prototypes/boot-to-claude
nohup qemu-system-i386 -drive file=build/disk.img,format=raw -display none -serial file:build/serial.log -monitor unix:build/qemu-monitor.sock,server,nowait -no-reboot > build/qemu.out 2>&1 &
disown
sleep 2
ps aux | grep qemu-system-i386 | grep -v grep
result
martin   1763066  101  0.1 1740904 49432 ?       Sl   17:40   0:02 qemu-system-i386 -drive file=build/disk.img,format=raw -display none -serial file:build/serial.log -monitor unix:build/qemu-monitor.sock,server,nowait -no-reboot
agent · Jul 22, 17:40:17
QEMU is up. Now running the recorder.
Bash · Jul 22, 17:40:18 · toolu_014Ro4kJzH4jbgYMG2reGtnk
$ cd /home/martin/workspace/prototypes/boot-to-claude
mkdir -p recordings
time python3 /tmp/claude-1001/-home-martin-workspace-prototypes-boot-to-claude/03468d1c-5b29-4e24-8f0d-2a7435d227ab/scratchpad/record_gui_playthrough.py \
  build/qemu-monitor.sock build/serial.log recordings/gui_screencast.mp4
result
50 lines
ffmpeg version 7.1.1-1ubuntu4.2 Copyright (c) 2000-2025 the FFmpeg developers
  built with gcc 15 (Ubuntu 15.2.0-4ubuntu4)
  configuration: --prefix=/usr --extra-version=1ubuntu4.2 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --disable-libmfx --disable-omx --enable-gnutls --enable-libaom --enable-libass --enable-libbs2b --enable-libcdio --enable-libcodec2 --enable-libdav1d --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libglslang --enable-libgme --enable-libgsm --enable-libharfbuzz --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzimg --enable-openal --enable-opencl --enable-opengl --disable-sndio --enable-libvpl --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-ladspa --enable-libbluray --enable-libcaca --enable-libdvdnav --enable-libdvdread --enable-libjack --enable-libpulse --enable-librabbitmq --enable-librist --enable-libsrt --enable-libssh --enable-libsvtav1 --enable-libx264 --enable-libzmq --enable-libzvbi --enable-lv2 --enable-sdl2 --enable-libplacebo --enable-librav1e --enable-pocketsphinx --enable-librsvg --enable-libjxl --enable-shared
  libavutil      59. 39.100 / 59. 39.100
  libavcodec     61. 19.101 / 61. 19.101
  libavformat    61.  7.100 / 61.  7.100
  libavdevice    61.  3.100 / 61.  3.100
  libavfilter    10.  4.100 / 10.  4.100
  libswscale      8.  3.100 /  8.  3.100
  libswresample   5.  3.100 /  5.  3.100
  libpostproc    58.  3.100 / 58.  3.100
Input #0, rawvideo, from 'fd:':
  Duration: N/A, start: 0.000000, bitrate: 7680 kb/s
  Stream #0:0: Video: rawvideo (RGB[24] / 0x18424752), rgb24, 320x200, 7680 kb/s, 5 tbr, 5 tbn
Stream mapping:
  Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (libx264))
[libx264 @ 0x6256b8a5e400] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0x6256b8a5e400] profile High, level 3.1, 4:2:0, 8-bit
[libx264 @ 0x6256b8a5e400] 264 - core 164 r3108 31e19f9 - H.264/MPEG-4 AVC codec - Copyleft 2003-2023 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=5 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to 'recordings/gui_screencast.mp4':
  Metadata:
    encoder         : Lavf61.7.100
  Stream #0:0: Video: h264 (avc1 / 0x31637661), yuv420p(tv, progressive), 960x600, q=2-31, 5 fps, 10240 tbn
      Metadata:
        encoder         : Lavc61.19.101 libx264
      Side data:
        cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
frame=    0 fps=0.0 q=0.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=0.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=0.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=0.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=0.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=   11 fps=3.7 q=23.0 size=       0KiB time=00:00:01.80 bitrate=   0.2kbits/s speed= 0.6x    
frame=   19 fps=5.4 q=23.0 size=       0KiB time=00:00:03.40 bitrate=   0.1kbits/s speed=0.971x    
frame=   31 fps=7.7 q=23.0 size=       0KiB time=00:00:05.80 bitrate=   0.1kbits/s speed=1.45x    
frame=   43 fps=9.6 q=23.0 size=       0KiB time=00:00:08.20 bitrate=   0.0kbits/s speed=1.82x    
frame=   53 fps= 11 q=23.0 size=     256KiB time=00:00:10.20 bitrate= 205.6kbits/s speed=2.04x    
frame=   67 fps= 12 q=23.0 size=     256KiB time=00:00:13.00 bitrate= 161.3kbits/s speed=2.36x    
frame=   79 fps= 13 q=23.0 size=     512KiB time=00:00:15.40 bitrate= 272.4kbits/s speed=2.57x    
frame=   91 fps= 14 q=23.0 size=     512KiB time=00:00:17.80 bitrate= 235.7kbits/s speed=2.74x    
frame=  103 fps= 15 q=23.0 size=     768KiB time=00:00:20.20 bitrate= 311.5kbits/s speed=2.89x    
frame=  115 fps= 15 q=23.0 size=     768KiB time=00:00:22.60 bitrate= 278.4kbits/s speed=3.01x    
frame=  131 fps= 16 q=23.0 size=    1024KiB time=00:00:25.80 bitrate= 325.2kbits/s speed=3.22x    
frame=  143 fps= 17 q=23.0 size=    1280KiB time=00:00:28.20 bitrate= 371.8kbits/s speed=3.32x    
frame=  155 fps= 17 q=23.0 size=    1280KiB time=00:00:30.60 bitrate= 342.7kbits/s speed= 3.4x    
frame=  171 fps= 18 q=23.0 size=    1536KiB time=00:00:33.80 bitrate= 372.3kbits/s speed=3.56x    
frame=  179 fps= 18 q=23.0 size=    1536KiB time=00:00:35.40 bitrate= 355.5kbits/s speed=3.54x    
frame=  191 fps= 18 q=23.0 size=    1792KiB time=00:00:37.80 bitrate= 388.4kbits/s speed= 3.6x    
frame=  199 fps= 18 q=23.0 size=    1792KiB time=00:00:39.40 bitrate= 372.6kbits/s speed=3.58x    
frame=  207 fps= 18 q=23.0 size=    1792KiB time=00:00:41.00 bitrate= 358.1kbits/s speed=3.56x    
frame=  215 fps= 18 q=23.0 size=    2048KiB time=00:00:42.60 bitrate= 393.8kbits/s speed=3.55x    
frame=  226 fps= 18 q=23.0 size=    2048KiB time=00:00:44.80 bitrate= 374.5kbits/s speed=3.58x    
frame=  235 fps= 18 q=23.0 size=    2304KiB time=00:00:46.60 bitrate= 405.0kbits/s speed=3.58x    
frame=  245 fps= 18 q=23.0 size=    2304KiB time=00:00:48.60 bitrate= 388.4kbits/s speed= 3.6x    
frame=  255 fps= 18 q=23.0 size=    2560KiB time=00:00:50.60 bitrate= 414.5kbits/s speed=3.61x    
frame=  263 fps= 18 q=23.0 size=    2560KiB time=00:00:52.20 bitrate= 401.8kbits/s speed= 3.6x    
frame=  275 fps= 18 q=23.0 size=    2560KiB time=00:00:54.60 bitrate= 384.1kbits/s speed=3.64x    
frame=  283 fps= 18 q=23.0 size=    2816KiB time=00:00:56.20 bitrate= 410.5kbits/s speed=3.63x    
frame=  295 fps= 18 q=23.0 size=    2816KiB time=00:00:58.60 bitrate= 393.7kbits/s speed=3.66x    
frame=  307 fps= 19 q=23.0 size=    3072KiB time=00:01:01.00 bitrate= 412.6kbits/s speed= 3.7x    
frame=  315 fps= 19 q=23.0 size=    3072KiB time=00:01:02.60 bitrate= 402.0kbits/s speed=3.68x    
frame=  323 fps= 18 q=23.0 size=    3328KiB time=00:01:04.20 bitrate= 424.7kbits/s speed=3.67x    
frame=  335 fps= 19 q=23.0 size=    3328KiB time=00:01:06.60 bitrate= 409.4kbits/s speed= 3.7x    
frame=  347 fps= 19 q=23.0 size=    3584KiB time=00:01:09.00 bitrate= 425.5kbits/s speed=3.73x    
frame=  355 fps= 19 q=23.0 size=    3584KiB time=00:01:10.60 bitrate= 415.9kbits/s speed=3.71x    
frame=  363 fps= 19 q=23.0 size=    3584KiB time=00:01:12.20 bitrate= 406.7kbits/s speed= 3.7x    
frame=  375 fps= 19 q=23.0 size=    3840KiB time=00:01:14.60 bitrate= 421.7kbits/s speed=3.73x    
frame=  387 fps= 19 q=23.0 size=    3840KiB time=00:01:17.00 bitrate= 408.5kbits/s speed=3.76x    
frame=  395 fps= 19 q=23.0 size=    4096KiB time=00:01:18.60 bitrate= 426.9kbits/s speed=3.74x    
frame=  406 fps= 19 q=23.0 size=    4096KiB time=00:01:20.80 bitrate= 415.3kbits/s speed=3.76x    
frame=  415 fps= 19 q=23.0 size=    4352KiB time=00:01:22.60 bitrate= 431.6kbits/s speed=3.75x    
frame=  423 fps= 19 q=23.0 size=    4352KiB time=00:01:24.20 bitrate= 423.4kbits/s speed=3.74x    
frame=  431 fps= 19 q=23.0 size=    4608KiB time=00:01:25.80 bitrate= 440.0kbits/s speed=3.73x    
frame=  439 fps= 19 q=23.0 size=    4608KiB time=00:01:27.40 bitrate= 431.9kbits/s speed=3.72x    
frame=  451 fps= 19 q=23.0 size=    4864KiB time=00:01:29.80 bitrate= 443.7kbits/s speed=3.74x    
frame=  459 fps= 19 q=23.0 size=    4864KiB time=00:01:31.40 bitrate= 436.0kbits/s speed=3.73x    
frame=  471 fps= 19 q=23.0 size=    5120KiB time=00:01:33.80 bitrate= 447.2kbits/s speed=3.75x    
frame=  479 fps= 19 q=23.0 size=    5120KiB time=00:01:35.40 bitrate= 439.7kbits/s speed=3.74x    
frame=  491 fps= 19 q=23.0 size=    5376KiB time=00:01:37.80 bitrate= 450.3kbits/s speed=3.76x    
frame=  499 fps= 19 q=23.0 size=    5376KiB time=00:01:39.40 bitrate= 443.1kbits/s speed=3.75x    
frame=  511 fps= 19 q=23.0 size=    5632KiB time=00:01:41.80 bitrate= 453.2kbits/s speed=3.77x    
frame=  519 fps= 19 q=23.0 size=    5632KiB time=00:01:43.40 bitrate= 446.2kbits/s speed=3.76x    
frame=  531 fps= 19 q=23.0 size=    5888KiB time=00:01:45.80 bitrate= 455.9kbits/s speed=3.78x    
frame=  539 fps= 19 q=23.0 size=    5888KiB time=00:01:47.40 bitrate= 449.1kbits/s speed=3.77x    
frame=  551 fps= 19 q=23.0 size=    6144KiB time=00:01:49.80 bitrate= 458.4kbits/s speed=3.79x    
frame=  559 fps= 19 q=23.0 size=    6144KiB time=00:01:51.40 bitrate= 451.8kbits/s speed=3.78x    
frame=  571 fps= 19 q=23.0 size=    6400KiB time=00:01:53.80 bitrate= 460.7kbits/s speed=3.79x    
frame=  579 fps= 19 q=23.0 size=    6400KiB time=00:01:55.40 bitrate= 454.3kbits/s speed=3.78x    
frame=  591 fps= 19 q=23.0 size=    6656KiB time=00:01:57.80 bitrate= 462.9kbits/s speed= 3.8x    
frame=  599 fps= 19 q=23.0 size=    6656KiB time=00:01:59.40 bitrate= 456.7kbits/s speed=3.79x    
frame=  611 fps= 19 q=23.0 size=    6912KiB time=00:02:01.80 bitrate= 464.9kbits/s speed=3.81x    
frame=  619 fps= 19 q=23.0 size=    6912KiB time=00:02:03.40 bitrate= 458.9kbits/s speed= 3.8x    
frame=  631 fps= 19 q=23.0 size=    7168KiB time=00:02:05.80 bitrate= 466.8kbits/s speed=3.81x    
frame=  639 fps= 19 q=23.0 size=    7168KiB time=00:02:07.40 bitrate= 460.9kbits/s speed= 3.8x    
frame=  651 fps= 19 q=23.0 size=    7424KiB time=00:02:09.80 bitrate= 468.6kbits/s speed=3.82x    
frame=  682 fps= 20 q=23.0 size=    7936KiB time=00:02:16.00 bitrate= 478.0kbits/s speed=3.94x    
[out#0/mp4 @ 0x6256b8a8e7c0] video:8411KiB audio:0KiB subtitle:0KiB other streams:0KiB global headers:0KiB muxing overhead: 0.049134%
frame=  715 fps= 21 q=-1.0 Lsize=    8415KiB time=00:02:22.60 bitrate= 483.4kbits/s speed= 4.1x    
[libx264 @ 0x6256b8a5e400] frame I:97    Avg QP:19.36  size: 12350
[libx264 @ 0x6256b8a5e400] frame P:602   Avg QP:21.06  size: 12201
[libx264 @ 0x6256b8a5e400] frame B:16    Avg QP:16.44  size:  4341
[libx264 @ 0x6256b8a5e400] consecutive B-frames: 96.8%  0.6%  0.4%  2.2%
[libx264 @ 0x6256b8a5e400] mb I  I16..4: 54.3% 23.1% 22.6%
[libx264 @ 0x6256b8a5e400] mb P  I16..4: 45.3% 25.8% 12.8%  P16..4:  1.6%  0.7%  0.2%  0.0%  0.0%    skip:13.6%
[libx264 @ 0x6256b8a5e400] mb B  I16..4:  0.1%  0.0%  6.0%  B16..8:  1.4%  0.0%  0.0%  direct: 0.7%  skip:91.8%  L0: 3.5% L1:96.5% BI: 0.0%
[libx264 @ 0x6256b8a5e400] 8x8 transform intra:29.4% inter:38.3%
[libx264 @ 0x6256b8a5e400] coded y,uvDC,uvAC intra: 7.8% 15.3% 13.6% inter: 5.2% 9.4% 8.5%
[libx264 @ 0x6256b8a5e400] i16 v,h,dc,p: 33% 65%  2%  0%
[libx264 @ 0x6256b8a5e400] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 59% 11% 30%  0%  0%  0%  0%  0%  0%
[libx264 @ 0x6256b8a5e400] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 20% 66% 10%  1%  1%  0%  1%  0%  1%
[libx264 @ 0x6256b8a5e400] i8c dc,h,v,p: 48% 48%  3%  0%
[libx264 @ 0x6256b8a5e400] Weighted P-Frames: Y:15.8% UV:14.8%
[libx264 @ 0x6256b8a5e400] ref P L0: 36.2% 10.4%  7.5% 42.1%  3.9%
[libx264 @ 0x6256b8a5e400] kb/s:481.82
done: recordings/gui_screencast.mp4

real	0m35.157s
user	0m35.609s
sys	0m0.505s
Bash · Jul 22, 17:40:59 · toolu_01CdY6ohCwbucTAzNfhCPLXv
$ cd /home/martin/workspace/prototypes/boot-to-claude
ls -la recordings/gui_screencast.mp4
ffprobe -v error -show_entries format=duration,size -of default=noprint_wrappers=1 recordings/gui_screencast.mp4
tail -c 500 build/serial.log
result
-rw-r----- 1 martin martin 8617440 Jul 22 17:40 recordings/gui_screencast.mp4
duration=143.000000
size=8617440
HP 13/28
Wild Emberpup: HP 16/32
1) Ember (7)
2) Scratch (5)
3) Flame Burst (10)
4) Run
> 3
Your Emberpup uses Flame Burst!
Wild Emberpup takes 8 damage. (HP 8/32)
Wild Emberpup uses Scratch!
Your Emberpup takes 7 damage. (HP 6/28)
Your Emberpup: HP 6/28
Wild Emberpup: HP 8/32
1) Ember (7)
2) Scratch (5)
3) Flame Burst (10)
4) Run
> quhelp
invalid choice - type 1-3 for a move, 'run', or 'quit'
Your Emberpup: HP 6/28
Wild Emberpup: HP 8/32
1) Ember (7)
2) Scratch (5)
3) Flame Burst (10)
4) Run
>
agent · Jul 22, 17:42:09
The video looks mostly clean, but a keystroke-timing race during the closing "quit" sequence caused input to merge (visible only in the text log, not on screen) — the tail just repeats a static frame. Let me trim it to end cleanly.
Bash · Jul 22, 17:42:11 · toolu_016zv3XxgHMMhDx2RPJ1oBBn
$ cd /home/martin/workspace/prototypes/boot-to-claude
python3 -c "
from PIL import Image
import subprocess
for t in [110,115,118,120,122,125,130,140]:
    subprocess.run(['ffmpeg','-y','-ss',str(t),'-i','recordings/gui_screencast.mp4','-frames:v','1','/tmp/frame_%d.png'%t],capture_output=True)
"
ls -la /tmp/frame_*.png
result
-rw-r----- 1 martin martin 128491 Jul 22 17:42 /tmp/frame_110.png
-rw-r----- 1 martin martin  57772 Jul 22 17:42 /tmp/frame_115.png
-rw-r----- 1 martin martin 128491 Jul 22 17:42 /tmp/frame_118.png
-rw-r----- 1 martin martin  41372 Jul 22 17:42 /tmp/frame_120.png
-rw-r----- 1 martin martin 127926 Jul 22 17:42 /tmp/frame_122.png
-rw-r----- 1 martin martin 115161 Jul 22 17:42 /tmp/frame_125.png
-rw-r----- 1 martin martin 127926 Jul 22 17:42 /tmp/frame_130.png
-rw-r----- 1 martin martin  41098 Jul 22 17:42 /tmp/frame_140.png
-rw-r----- 1 martin martin 226045 Jul 22 13:47 /tmp/frame_check.png
Read · Jul 22, 17:42:19 · toolu_01HFFpJfrcZ5UR77q28RMGUW
/tmp/frame_118.png
result
image returned by the tool
Read · Jul 22, 17:42:23 · toolu_012Wf4qCca9gcx9RykvNdmSr
/tmp/frame_130.png
result
image returned by the tool
agent · Jul 22, 17:43:10
The double-exposed text confirms a real bug in my capture script — reading the screendump PPM file before QEMU finished writing it (torn read: old frame + new frame mixed). Fixing the timing and re-recording.
Edit · Jul 22, 17:43:18 · toolu_017rApzpFYhpeS1V584TzG5r
/tmp/claude-1001/-home-martin-workspace-prototypes-boot-to-claude/03468d1c-5b29-4e24-8f0d-2a7435d227ab/scratchpad/record_gui_playthrough.py
63 lines
- def capture_frame():
-     mon.screendump(FRAME_PPM)
-     time.sleep(0.04)
-     with open(FRAME_PPM, "rb") as f:
-         data = f.read()
-     assert data[:2] == b"P6"
-     idx = 2
-     vals = []
-     while len(vals) < 3:
-         while data[idx:idx + 1] in b" \t\r\n":
-             idx += 1
-         start = idx
-         while data[idx:idx + 1] not in b" \t\r\n":
-             idx += 1
-         vals.append(int(data[start:idx]))
-     idx += 1
-     w, h, _maxval = vals
-     pixels = data[idx:idx + w * h * 3]
-     ffmpeg.stdin.write(pixels)
+ EXPECTED_BYTES = WIDTH * HEIGHT * 3
+ 
+ 
+ def read_ppm_frame():
+     with open(FRAME_PPM, "rb") as f:
+         data = f.read()
+     if data[:2] != b"P6":
+         return None
+     idx = 2
+     vals = []
+     while len(vals) < 3:
+         while data[idx:idx + 1] in b" \t\r\n":
+             idx += 1
+         start = idx
+         while data[idx:idx + 1] not in b" \t\r\n":
+             idx += 1
+         vals.append(int(data[start:idx]))
+     idx += 1
+     w, h, _maxval = vals
+     pixels = data[idx:idx + w * h * 3]
+     if (w, h) != (WIDTH, HEIGHT) or len(pixels) != EXPECTED_BYTES:
+         return None
+     return pixels
+ 
+ 
+ def capture_frame():
+     # screendump's HMP response only echoes the typed command, not a
+     # completion signal - the file write can still be in flight when we
+     # read it (observed: a torn read shows two different frames' text
+     # blended together). Poll the file itself (size + valid P6 header)
+     # instead of trusting a fixed delay.
+     mon.screendump(FRAME_PPM)
+     pixels = None
+     for _ in range(20):
+         time.sleep(0.02)
+         try:
+             pixels = read_ppm_frame()
+         except (FileNotFoundError, IndexError, ValueError):
+             pixels = None
+         if pixels is not None:
+             break
+     if pixels is None:
+         return  # skip this frame slot rather than write a torn one
+     ffmpeg.stdin.write(pixels)
result
The file /tmp/claude-1001/-home-martin-workspace-prototypes-boot-to-claude/03468d1c-5b29-4e24-8f0d-2a7435d227ab/scratchpad/record_gui_playthrough.py has been updated successfully. (file state is current in your context — no need to Read it back)
Edit · Jul 22, 17:43:35 · toolu_01BM3x5pLp2yCsa1nqCaKEAb
/tmp/claude-1001/-home-martin-workspace-prototypes-boot-to-claude/03468d1c-5b29-4e24-8f0d-2a7435d227ab/scratchpad/record_gui_playthrough.py
99 lines
- EXPECTED_BYTES = WIDTH * HEIGHT * 3
- 
- 
- def read_ppm_frame():
-     with open(FRAME_PPM, "rb") as f:
-         data = f.read()
-     if data[:2] != b"P6":
-         return None
-     idx = 2
-     vals = []
-     while len(vals) < 3:
-         while data[idx:idx + 1] in b" \t\r\n":
-             idx += 1
-         start = idx
-         while data[idx:idx + 1] not in b" \t\r\n":
-             idx += 1
-         vals.append(int(data[start:idx]))
-     idx += 1
-     w, h, _maxval = vals
-     pixels = data[idx:idx + w * h * 3]
-     if (w, h) != (WIDTH, HEIGHT) or len(pixels) != EXPECTED_BYTES:
-         return None
-     return pixels
- 
- 
- def capture_frame():
-     # screendump's HMP response only echoes the typed command, not a
-     # completion signal - the file write can still be in flight when we
-     # read it (observed: a torn read shows two different frames' text
-     # blended together). Poll the file itself (size + valid P6 header)
-     # instead of trusting a fixed delay.
-     mon.screendump(FRAME_PPM)
-     pixels = None
-     for _ in range(20):
-         time.sleep(0.02)
-         try:
-             pixels = read_ppm_frame()
-         except (FileNotFoundError, IndexError, ValueError):
-             pixels = None
-         if pixels is not None:
-             break
-     if pixels is None:
-         return  # skip this frame slot rather than write a torn one
-     ffmpeg.stdin.write(pixels)
+ EXPECTED_BYTES = WIDTH * HEIGHT * 3
+ _frame_counter = 0
+ 
+ 
+ def read_ppm_frame(path):
+     with open(path, "rb") as f:
+         data = f.read()
+     if data[:2] != b"P6":
+         return None
+     idx = 2
+     vals = []
+     while len(vals) < 3:
+         while data[idx:idx + 1] in b" \t\r\n":
+             idx += 1
+         start = idx
+         while data[idx:idx + 1] not in b" \t\r\n":
+             idx += 1
+         vals.append(int(data[start:idx]))
+     idx += 1
+     w, h, _maxval = vals
+     pixels = data[idx:idx + w * h * 3]
+     if (w, h) != (WIDTH, HEIGHT) or len(pixels) != EXPECTED_BYTES:
+         return None
+     return pixels
+ 
+ 
+ def capture_frame():
+     global _frame_counter
+     # screendump's HMP response only echoes the typed command, not a
+     # completion signal - the file write can still be in flight when we
+     # read it. A fixed path made this worse: reading before the write
+     # lands would silently return the *previous* frame's still-valid
+     # file, and reading mid-write tore two frames' text together.
+     # A fresh path per capture, deleted once consumed, rules both out -
+     # if it's not there yet (or incomplete) we just wait longer.
+     _frame_counter += 1
+     path = f"/tmp/rec_frame_{_frame_counter}.ppm"
+     mon.screendump(path)
+     pixels = None
+     for _ in range(25):
+         time.sleep(0.02)
+         try:
+             pixels = read_ppm_frame(path)
+         except (FileNotFoundError, IndexError, ValueError):
+             pixels = None
+         if pixels is not None:
+             break
+     try:
+         import os
+         os.remove(path)
+     except FileNotFoundError:
+         pass
+     if pixels is None:
+         return  # skip this frame slot rather than write a bad one
+     ffmpeg.stdin.write(pixels)
result
The file /tmp/claude-1001/-home-martin-workspace-prototypes-boot-to-claude/03468d1c-5b29-4e24-8f0d-2a7435d227ab/scratchpad/record_gui_playthrough.py has been updated successfully. (file state is current in your context — no need to Read it back)
Edit · Jul 22, 17:43:39 · toolu_01Cs4Hku5LzAqHHjmiNkPXp3
/tmp/claude-1001/-home-martin-workspace-prototypes-boot-to-claude/03468d1c-5b29-4e24-8f0d-2a7435d227ab/scratchpad/record_gui_playthrough.py
- import socket
- import subprocess
- import sys
- import time
+ import os
+ import socket
+ import subprocess
+ import sys
+ import time
result
The file /tmp/claude-1001/-home-martin-workspace-prototypes-boot-to-claude/03468d1c-5b29-4e24-8f0d-2a7435d227ab/scratchpad/record_gui_playthrough.py has been updated successfully. (file state is current in your context — no need to Read it back)
Edit · Jul 22, 17:43:43 · toolu_01ULwbGNzf8JRMjJXwskUvyq
/tmp/claude-1001/-home-martin-workspace-prototypes-boot-to-claude/03468d1c-5b29-4e24-8f0d-2a7435d227ab/scratchpad/record_gui_playthrough.py
-     try:
-         import os
-         os.remove(path)
-     except FileNotFoundError:
-         pass
+     try:
+         os.remove(path)
+     except FileNotFoundError:
+         pass
result
The file /tmp/claude-1001/-home-martin-workspace-prototypes-boot-to-claude/03468d1c-5b29-4e24-8f0d-2a7435d227ab/scratchpad/record_gui_playthrough.py has been updated successfully. (file state is current in your context — no need to Read it back)
Read · Jul 22, 17:43:55 · toolu_014AfbgNqHXiBpB4yQs55DR6
/tmp/claude-1001/-home-martin-workspace-prototypes-boot-to-claude/03468d1c-5b29-4e24-8f0d-2a7435d227ab/scratchpad/record_gui_playthrough.py
result
40 lines
120	            pixels = read_ppm_frame(path)
121	        except (FileNotFoundError, IndexError, ValueError):
122	            pixels = None
123	        if pixels is not None:
124	            break
125	    try:
126	        os.remove(path)
127	    except FileNotFoundError:
128	        pass
129	    if pixels is None:
130	        return  # skip this frame slot rather than write a bad one
131	    ffmpeg.stdin.write(pixels)
132	
133	
134	def pump(seconds, stop_pattern=None):
135	    """Captures frames for up to `seconds`, stopping early if
136	    stop_pattern shows up in the serial log. Returns True if the pattern
137	    was seen."""
138	    deadline = time.time() + seconds
139	    next_frame = time.time()
140	    while time.time() < deadline:
141	        now = time.time()
142	        if now >= next_frame:
143	            capture_frame()
144	            next_frame += FRAME_INTERVAL
145	        if stop_pattern and stop_pattern in read_serial():
146	            return True
147	        time.sleep(0.01)
148	    return False
149	
150	
151	# --- scripted playthrough ---
152	pump(10, stop_pattern="tiny-os shell")
153	pump(1.0)
154	
155	mon.type_line("play")
156	pump(10, stop_pattern="Choose your starter:")
157	pump(1.5)
158	
159	mon.type_line("1")  # Emberpup
Read · Jul 22, 17:43:58 · toolu_01DcjVM3yy8y6mtJRs7bqD6z
/tmp/claude-1001/-home-martin-workspace-prototypes-boot-to-claude/03468d1c-5b29-4e24-8f0d-2a7435d227ab/scratchpad/record_gui_playthrough.py
result
158	
159	mon.type_line("1")  # Emberpup
160	pump(10, stop_pattern="4) Run")
161	pump(1.0)
162	
163	game_ended = False
164	for mv in ["3", "1", "3", "1", "3", "1", "3", "1", "3", "1"]:
165	    if "Game over" in read_serial() or "Champion" in read_serial():
166	        game_ended = True
167	        break
168	    mon.type_line(mv)
169	    seen = pump(15, stop_pattern="4) Run")
170	    if not seen:
171	        if "Game over" in read_serial() or "Champion" in read_serial():
172	            game_ended = True
173	        break
174	    pump(0.3)
175	
176	pump(2.0)
177	
178	if not game_ended:
179	    mon.type_line("quit")
180	    pump(10, stop_pattern="Left the game.")
181	
182	pump(1.0)
183	mon.type_line("help")
184	pump(10, stop_pattern="commands:")
185	pump(1.5)
186	
187	ffmpeg.stdin.close()
agent · Jul 22, 17:44:01
Fixing the fragile tail sequence — retry `quit` once, and skip the `help` demo entirely if it never registers, rather than risk sending it into a still-open input line.
Edit · Jul 22, 17:44:05 · toolu_01SsnYTPKWRXFP9sR2VNSysJ
/tmp/claude-1001/-home-martin-workspace-prototypes-boot-to-claude/03468d1c-5b29-4e24-8f0d-2a7435d227ab/scratchpad/record_gui_playthrough.py
- pump(2.0)
- 
- if not game_ended:
-     mon.type_line("quit")
-     pump(10, stop_pattern="Left the game.")
- 
- pump(1.0)
- mon.type_line("help")
- pump(10, stop_pattern="commands:")
- pump(1.5)
+ pump(2.0)
+ 
+ reached_shell = game_ended
+ if not game_ended:
+     mon.type_line("quit")
+     reached_shell = pump(8, stop_pattern="Left the game.")
+     if not reached_shell:
+         # the polled (non-interrupt) keyboard driver can drop keys typed
+         # while it isn't in a read loop - retry once rather than risk
+         # piling a second command onto a still-open input line.
+         mon.type_line("quit")
+         reached_shell = pump(8, stop_pattern="Left the game.")
+ 
+ if reached_shell:
+     pump(1.0)
+     mon.type_line("help")
+     pump(8, stop_pattern="commands:")
+     pump(1.5)
+ else:
+     pump(1.5)
result
The file /tmp/claude-1001/-home-martin-workspace-prototypes-boot-to-claude/03468d1c-5b29-4e24-8f0d-2a7435d227ab/scratchpad/record_gui_playthrough.py has been updated successfully. (file state is current in your context — no need to Read it back)
agent · Jul 22, 17:44:08
Now re-recording with the fixed script.
Bash · Jul 22, 17:44:10 · toolu_01SHDnqh1gYJZRh44fuMxKn7
$ pkill -9 -f qemu-system-i386 || true
cd /home/martin/workspace/prototypes/boot-to-claude
rm -f build/serial.log build/qemu-monitor.sock build/qemu.out
nohup qemu-system-i386 -drive file=build/disk.img,format=raw -display none -serial file:build/serial.log -monitor unix:build/qemu-monitor.sock,server,nowait -no-reboot > build/qemu.out 2>&1 &
disown
sleep 2
ps aux | grep qemu-system-i386 | grep -v grep
result
(Bash completed with no output)
Bash · Jul 22, 17:44:16 · toolu_0199jcWGPLPACbqowRh9F7iq
$ cd /home/martin/workspace/prototypes/boot-to-claude
nohup qemu-system-i386 -drive file=build/disk.img,format=raw -display none -serial file:build/serial.log -monitor unix:build/qemu-monitor.sock,server,nowait -no-reboot > build/qemu.out 2>&1 &
disown
sleep 2
ps aux | grep qemu-system-i386 | grep -v grep
result
martin   1763873  100  0.1 1740904 49396 ?       Sl   17:44   0:02 qemu-system-i386 -drive file=build/disk.img,format=raw -display none -serial file:build/serial.log -monitor unix:build/qemu-monitor.sock,server,nowait -no-reboot
Bash · Jul 22, 17:44:23 · toolu_01AupVrQcDNTAGC4VLEAZTZm
$ cd /home/martin/workspace/prototypes/boot-to-claude
time python3 /tmp/claude-1001/-home-martin-workspace-prototypes-boot-to-claude/03468d1c-5b29-4e24-8f0d-2a7435d227ab/scratchpad/record_gui_playthrough.py \
  build/qemu-monitor.sock build/serial.log recordings/gui_screencast.mp4 2>&1 | tail -15
result
[libx264 @ 0x601d5550bbc0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0x601d5550bbc0] profile High, level 3.1, 4:2:0, 8-bit
[libx264 @ 0x601d5550bbc0] 264 - core 164 r3108 31e19f9 - H.264/MPEG-4 AVC codec - Copyleft 2003-2023 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=5 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to 'recordings/gui_screencast.mp4':
  Metadata:
    encoder         : Lavf61.7.100
  Stream #0:0: Video: h264 (avc1 / 0x31637661), yuv420p(progressive), 960x600, q=2-31, 5 fps, 10240 tbn
      Metadata:
        encoder         : Lavc61.19.101 libx264
      Side data:
        cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
[out#0/mp4 @ 0x601d5550bf80] video:0KiB audio:0KiB subtitle:0KiB other streams:0KiB global headers:0KiB muxing overhead: unknown
[out#0/mp4 @ 0x601d5550bf80] Output file is empty, nothing was encoded(check -ss / -t / -frames parameters if used)
frame=    0 fps=0.0 q=0.0 Lsize=       0KiB time=N/A bitrate=N/A speed=N/A    
done: recordings/gui_screencast.mp4

real	0m39.692s
user	0m0.288s
sys	0m0.366s
Bash · Jul 22, 17:45:14 · toolu_016w5rGR9PD47Jjc7J1A32oo
$ ps aux | grep qemu-system-i386 | grep -v grep
tail -c 400 /home/martin/workspace/prototypes/boot-to-claude/build/serial.log
result
martin   1763873  100  0.1 1740704 51068 ?       Sl   17:44   0:56 qemu-system-i386 -drive file=build/disk.img,format=raw -display none -serial file:build/serial.log -monitor unix:build/qemu-monitor.sock,server,nowait -no-reboot
uper effective!
Wild Leafling takes 13 damage. (HP 0/40)
Wild Leafling fainted! You win!
=== A wild Emberpup appears! (stage 4)
Your Emberpup: HP 14/28
Wild Emberpup: HP 40/40
1) Ember (7)
2) Scratch (5)
3) Flame Burst (10)
4) Run
> ququit
invalid choice - type 1-3 for a move, 'run', or 'quit'
Your Emberpup: HP 14/28
Wild Emberpup: HP 40/40
1) Ember (7)
2) Scratch (5)
3) Flame Burst (10)
4) Run
>
Bash · Jul 22, 17:45:24 · toolu_018Ws7vMECoLzqNw8nrtiU82
$ cd /home/martin/workspace/prototypes/boot-to-claude
python3 -c "
import socket, time
s = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
s.connect('build/qemu-monitor.sock')
time.sleep(0.2)
print('banner:', s.recv(4096))
s.sendall(b'screendump /tmp/rec_test1.ppm\n')
time.sleep(0.3)
print('resp:', s.recv(4096))
s.close()
"
ls -la /tmp/rec_test1.ppm
result
banner: b"QEMU 10.1.0 monitor - type 'help' for more information\r\n(qemu) "
resp: b's\x1b[K\x1b[Dsc\x1b[K\x1b[D\x1b[Dscr\x1b[K\x1b[D\x1b[D\x1b[Dscre\x1b[K\x1b[D\x1b[D\x1b[D\x1b[Dscree\x1b[K\x1b[D\x1b[D\x1b[D\x1b[D\x1b[Dscreen\x1b[K\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[Dscreend\x1b[K\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[Dscreendu\x1b[K\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[Dscreendum\x1b[K\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[Dscreendump\x1b[K\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[Dscreendump \x1b[K\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[Dscreendump /\x1b[K\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[Dscreendump /t\x1b[K\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[Dscreendump /tm\x1b[K\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[Dscreendump /tmp\x1b[K\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[Dscreendump /tmp/\x1b[K\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[Dscreendump /tmp/r\x1b[K\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[Dscreendump /tmp/re\x1b[K\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[Dscreendump /tmp/rec\x1b[K\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[Dscreendump /tmp/rec_\x1b[K\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[Dscreendump /tmp/rec_t\x1b[K\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[Dscreendump /tmp/rec_te\x1b[K\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[Dscreendump /tmp/rec_tes\x1b[K\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[Dscreendump /tmp/rec_test\x1b[K\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[Dscreendump /tmp/rec_test1\x1b[K\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[Dscreendump /tmp/rec_test1.\x1b[K\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[Dscreendump /tmp/rec_test1.p\x1b[K\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[Dscreendump /tmp/rec_test1.pp\x1b[K\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D\x1b[Dscreendump /tmp/rec_test1.ppm\x1b[K\r\n(qemu) '
-rw-r----- 1 martin martin 768015 Jul 22 17:45 /tmp/rec_test1.ppm
agent · Jul 22, 17:45:54
Found it — QEMU's screendump PPM is actually 640x400 (2x supersampled from the native 320x200), not 320x200 as I assumed. That dimension mismatch, not a file race, was silently corrupting every frame in the first video (ffmpeg misreading the byte stride). Fixing it.
Edit · Jul 22, 17:46:00 · toolu_01TQgj1dNaWSUj36CjF3ns6K
/tmp/claude-1001/-home-martin-workspace-prototypes-boot-to-claude/03468d1c-5b29-4e24-8f0d-2a7435d227ab/scratchpad/record_gui_playthrough.py
- FPS = 5
- FRAME_INTERVAL = 1.0 / FPS
- WIDTH, HEIGHT = 320, 200
- FRAME_PPM = "/tmp/rec_frame.ppm"
+ FPS = 5
+ FRAME_INTERVAL = 1.0 / FPS
+ # QEMU's screendump PPM comes out 2x-supersampled (640x400) even though
+ # the guest is in 320x200 mode 0x13 - verified by inspecting an actual
+ # dump's header, not assumed. Getting this wrong doesn't fail loudly:
+ # ffmpeg silently misreads the byte stride and produces sheared, ghosted
+ # frames instead (each real screendump reinterpreted as several bogus
+ # ones) - that's what an earlier recording attempt's "double-exposed
+ # text" artifact actually was.
+ WIDTH, HEIGHT = 640, 400
result
The file /tmp/claude-1001/-home-martin-workspace-prototypes-boot-to-claude/03468d1c-5b29-4e24-8f0d-2a7435d227ab/scratchpad/record_gui_playthrough.py has been updated successfully. (file state is current in your context — no need to Read it back)
Bash · Jul 22, 17:46:03 · toolu_01J3aPCzS9fWrmKFCFDdi1cE
$ grep -n "FRAME_PPM\|WIDTH\|HEIGHT" /tmp/claude-1001/-home-martin-workspace-prototypes-boot-to-claude/03468d1c-5b29-4e24-8f0d-2a7435d227ab/scratchpad/record_gui_playthrough.py
result
27:WIDTH, HEIGHT = 640, 400
76:        "-s", f"{WIDTH}x{HEIGHT}", "-r", str(FPS), "-i", "-",
84:EXPECTED_BYTES = WIDTH * HEIGHT * 3
105:    if (w, h) != (WIDTH, HEIGHT) or len(pixels) != EXPECTED_BYTES:
agent · Jul 22, 17:46:08
Good, no leftover references. Now let's quickly verify against the live QEMU instance before doing a full re-record.
Bash · Jul 22, 17:46:10 · toolu_0129RX7RHYW25hw72bRxXTVp
$ cd /home/martin/workspace/prototypes/boot-to-claude
python3 -c "
import sys
sys.path.insert(0, '/tmp/claude-1001/-home-martin-workspace-prototypes-boot-to-claude/03468d1c-5b29-4e24-8f0d-2a7435d227ab/scratchpad')
import importlib.util
spec = importlib.util.spec_from_file_location('rec', '/tmp/claude-1001/-home-martin-workspace-prototypes-boot-to-claude/03468d1c-5b29-4e24-8f0d-2a7435d227ab/scratchpad/record_gui_playthrough.py')
" 2>&1 | head -5
python3 -c "
data = open('/tmp/rec_test1.ppm','rb').read()
print(data[:20])
print(len(data))
"
result
b'P6\n640 400\n255\nP\x98\xffP\x98'
768015
agent · Jul 22, 17:46:17
640x400 confirmed, and the file length matches exactly (768015 = header + 640*400*3). Let's now do a clean full re-recording.
Bash · Jul 22, 17:46:17 · toolu_01M3FkeNBDaZ69d6cKyi4tYS
$ pkill -9 -f qemu-system-i386 || true
result (error)
Exit code 1
Bash · Jul 22, 17:46:23 · toolu_0196YHR9gS78FC97Gu8CZ2qH
$ cd /home/martin/workspace/prototypes/boot-to-claude
rm -f build/serial.log build/qemu-monitor.sock build/qemu.out
nohup qemu-system-i386 -drive file=build/disk.img,format=raw -display none -serial file:build/serial.log -monitor unix:build/qemu-monitor.sock,server,nowait -no-reboot > build/qemu.out 2>&1 &
disown
sleep 2
ps aux | grep qemu-system-i386 | grep -v grep
result
martin   1764186  100  0.1 1740904 49464 ?       Sl   17:46   0:02 qemu-system-i386 -drive file=build/disk.img,format=raw -display none -serial file:build/serial.log -monitor unix:build/qemu-monitor.sock,server,nowait -no-reboot
Bash · Jul 22, 17:46:30 · toolu_01GmymUAuxCPQh4s8hyCSeza
$ cd /home/martin/workspace/prototypes/boot-to-claude
time python3 /tmp/claude-1001/-home-martin-workspace-prototypes-boot-to-claude/03468d1c-5b29-4e24-8f0d-2a7435d227ab/scratchpad/record_gui_playthrough.py \
  build/qemu-monitor.sock build/serial.log recordings/gui_screencast.mp4 2>&1 | tail -20
result
frame=   99 fps=3.5 q=-1.0 Lsize=      70KiB time=00:00:19.40 bitrate=  29.5kbits/s speed=0.686x    
[libx264 @ 0x60c88dbff500] frame I:2     Avg QP: 4.67  size: 15462
[libx264 @ 0x60c88dbff500] frame P:25    Avg QP:16.03  size:  1242
[libx264 @ 0x60c88dbff500] frame B:72    Avg QP: 9.69  size:    94
[libx264 @ 0x60c88dbff500] consecutive B-frames:  3.0%  0.0%  0.0% 97.0%
[libx264 @ 0x60c88dbff500] mb I  I16..4: 89.1%  0.3% 10.6%
[libx264 @ 0x60c88dbff500] mb P  I16..4:  0.6%  0.2%  0.7%  P16..4:  0.8%  0.2%  0.2%  0.0%  0.0%    skip:97.2%
[libx264 @ 0x60c88dbff500] mb B  I16..4:  0.4%  0.0%  0.0%  B16..8:  1.5%  0.0%  0.0%  direct: 0.0%  skip:98.0%  L0:48.1% L1:51.9% BI: 0.1%
[libx264 @ 0x60c88dbff500] 8x8 transform intra:2.1% inter:7.2%
[libx264 @ 0x60c88dbff500] coded y,uvDC,uvAC intra: 7.7% 14.8% 14.3% inter: 0.1% 0.1% 0.1%
[libx264 @ 0x60c88dbff500] i16 v,h,dc,p: 77% 21%  2%  0%
[libx264 @ 0x60c88dbff500] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 31%  8% 60%  0%  1%  0%  0%  0%  0%
[libx264 @ 0x60c88dbff500] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 39% 24% 27%  2%  3%  1%  1%  1%  1%
[libx264 @ 0x60c88dbff500] i8c dc,h,v,p: 74% 21%  5%  1%
[libx264 @ 0x60c88dbff500] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 0x60c88dbff500] ref P L0: 61.6%  2.3% 19.6% 16.5%
[libx264 @ 0x60c88dbff500] ref B L0: 88.0% 11.3%  0.8%
[libx264 @ 0x60c88dbff500] ref B L1: 97.7%  2.3%
[libx264 @ 0x60c88dbff500] kb/s:27.76
done: recordings/gui_screencast.mp4

real	0m30.518s
user	0m1.031s
sys	0m0.631s
agent · Jul 22, 17:47:09
Only 19 seconds captured — much shorter than expected. Checking what happened.
Bash · Jul 22, 17:47:10 · toolu_015dXLyexmXo19w4aBUc9Y8C
$ tail -c 600 /home/martin/workspace/prototypes/boot-to-claude/build/serial.log
result
 (stage 2)
Your Emberpup: HP 9/28
Wild Emberpup: HP 32/32
1) Ember (7)
2) Scratch (5)
3) Flame Burst (10)
4) Run
> 3
Your Emberpup uses Flame Burst!
Wild Emberpup takes 11 damage. (HP 21/32)
Wild Emberpup uses Scratch!
Your Emberpup takes 6 damage. (HP 3/28)
Your Emberpup: HP 3/28
Wild Emberpup: HP 21/32
1) Ember (7)
2) Scratch (5)
3) Flame Burst (10)
4) Run
> 1
Your Emberpup uses Ember!
Wild Emberpup takes 9 damage. (HP 12/32)
Wild Emberpup uses Scratch!
Your Emberpup takes 7 damage. (HP 0/28)
Your Emberpup fainted... Game over! You reached stage 2.
> quitquit
unknown command (type 'help')
>
Read · Jul 22, 17:47:22 · toolu_01VGRnJw5xbt7K8uaqJK8Ta9
/tmp/claude-1001/-home-martin-workspace-prototypes-boot-to-claude/03468d1c-5b29-4e24-8f0d-2a7435d227ab/scratchpad/record_gui_playthrough.py
result
45 lines
160	
161	mon.type_line("play")
162	pump(10, stop_pattern="Choose your starter:")
163	pump(1.5)
164	
165	mon.type_line("1")  # Emberpup
166	pump(10, stop_pattern="4) Run")
167	pump(1.0)
168	
169	game_ended = False
170	for mv in ["3", "1", "3", "1", "3", "1", "3", "1", "3", "1"]:
171	    if "Game over" in read_serial() or "Champion" in read_serial():
172	        game_ended = True
173	        break
174	    mon.type_line(mv)
175	    seen = pump(15, stop_pattern="4) Run")
176	    if not seen:
177	        if "Game over" in read_serial() or "Champion" in read_serial():
178	            game_ended = True
179	        break
180	    pump(0.3)
181	
182	pump(2.0)
183	
184	reached_shell = game_ended
185	if not game_ended:
186	    mon.type_line("quit")
187	    reached_shell = pump(8, stop_pattern="Left the game.")
188	    if not reached_shell:
189	        # the polled (non-interrupt) keyboard driver can drop keys typed
190	        # while it isn't in a read loop - retry once rather than risk
191	        # piling a second command onto a still-open input line.
192	        mon.type_line("quit")
193	        reached_shell = pump(8, stop_pattern="Left the game.")
194	
195	if reached_shell:
196	    pump(1.0)
197	    mon.type_line("help")
198	    pump(8, stop_pattern="commands:")
199	    pump(1.5)
200	else:
201	    pump(1.5)
202	
203	ffmpeg.stdin.close()
204	ffmpeg.wait()
Bash · Jul 22, 17:47:47 · toolu_01WmrJYz19aRaxY3WoKHEQdZ
$ wc -l /home/martin/workspace/prototypes/boot-to-claude/build/serial.log
cat /home/martin/workspace/prototypes/boot-to-claude/build/serial.log
result
84 lines
82 /home/martin/workspace/prototypes/boot-to-claude/build/serial.log
tiny-os: kernel entered
selftest: running
SELFTEST PASS
tiny-os shell. type 'help' for commands.
> play
=== Tiny Monsters ===
Defeat 5 wild monsters to become champion. Type 'quit' any time to leave.
Choose your starter:
1) Emberpup (Fire)
2) Aqualing (Water)
3) Leafling (Grass)
> 1
=== A wild Emberpup appears! (stage 1)
Your Emberpup: HP 28/28
Wild Emberpup: HP 28/28
1) Ember (7)
2) Scratch (5)
3) Flame Burst (10)
4) Run
> 3
Your Emberpup uses Flame Burst!
Wild Emberpup takes 9 damage. (HP 19/28)
Wild Emberpup uses Ember!
Your Emberpup takes 5 damage. (HP 23/28)
Your Emberpup: HP 23/28
Wild Emberpup: HP 19/28
1) Ember (7)
2) Scratch (5)
3) Flame Burst (10)
4) Run
> 1
Your Emberpup uses Ember!
Wild Emberpup takes 7 damage. (HP 12/28)
Wild Emberpup uses Scratch!
Your Emberpup takes 6 damage. (HP 17/28)
Your Emberpup: HP 17/28
Wild Emberpup: HP 12/28
1) Ember (7)
2) Scratch (5)
3) Flame Burst (10)
4) Run
> 3
Your Emberpup uses Flame Burst!
Wild Emberpup takes 9 damage. (HP 3/28)
Wild Emberpup uses Flame Burst!
Your Emberpup takes 8 damage. (HP 9/28)
Your Emberpup: HP 9/28
Wild Emberpup: HP 3/28
1) Ember (7)
2) Scratch (5)
3) Flame Burst (10)
4) Run
> 1
Your Emberpup uses Ember!
Wild Emberpup takes 9 damage. (HP 0/28)
Wild Emberpup fainted! You win!
=== A wild Emberpup appears! (stage 2)
Your Emberpup: HP 9/28
Wild Emberpup: HP 32/32
1) Ember (7)
2) Scratch (5)
3) Flame Burst (10)
4) Run
> 3
Your Emberpup uses Flame Burst!
Wild Emberpup takes 11 damage. (HP 21/32)
Wild Emberpup uses Scratch!
Your Emberpup takes 6 damage. (HP 3/28)
Your Emberpup: HP 3/28
Wild Emberpup: HP 21/32
1) Ember (7)
2) Scratch (5)
3) Flame Burst (10)
4) Run
> 1
Your Emberpup uses Ember!
Wild Emberpup takes 9 damage. (HP 12/32)
Wild Emberpup uses Scratch!
Your Emberpup takes 7 damage. (HP 0/28)
Your Emberpup fainted... Game over! You reached stage 2.
> quitquit
unknown command (type 'help')
>
agent · Jul 22, 17:48:44
Found the real bug: my `pump()` checks for the stop pattern against the *entire* cumulative log, so once "4) Run" appears once, every later wait returns instantly — the script raced far ahead of actual gameplay. Let me check how the existing test tooling handles this correctly.
Bash · Jul 22, 17:48:44 · toolu_01L16CWHZgwytErEwdXNzSfB
$ sed -n '1,60p' /home/martin/workspace/prototypes/boot-to-claude/tools/serial_game_test.py
result
60 lines
#!/usr/bin/env python3
"""Drives kernel/game/game.c entirely over the serial port - no PS/2
keyboard, no QEMU monitor `sendkey` injection (contrast tools/qemu_type.py,
used by tools/run_tests.sh for the keyboard path). This is the actual
scenario kernel/input.c's dual keyboard+serial polling exists for: an
external agent (an AI agent, or this script standing in for one) that
only has a serial connection to the guest, sending commands and reading
responses as plain text.

Connects to the QEMU `-serial unix:PATH,server,nowait` socket tools/
run_serial_tests.sh boots the guest with. Battle outcomes are
RNG-dependent (see game.c's rng_next), so this plays real turns to a
real end state (a faint or a win) rather than asserting on a specific
outcome - it accepts either.
"""
import socket
import sys
import time

TIMEOUT_S = 20.0
POLL_S = 0.1


def connect(sock_path):
    for _ in range(50):  # 50 * 0.2s = 10s
        try:
            s = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
            s.connect(sock_path)
            s.settimeout(POLL_S)
            return s
        except (FileNotFoundError, ConnectionRefusedError):
            time.sleep(0.2)
    raise SystemExit(f"serial_game_test: socket {sock_path} never appeared")


class Session:
    def __init__(self, sock):
        self.sock = sock
        self.buf = ""

    def send(self, line):
        self.sock.sendall((line + "\n").encode())

    def wait_for(self, pattern, timeout=TIMEOUT_S):
        deadline = time.time() + timeout
        while pattern not in self.buf:
            if time.time() > deadline:
                raise SystemExit(
                    f"serial_game_test: timed out waiting for {pattern!r}\n"
                    f"--- received so far ---\n{self.buf}"
                )
            try:
                chunk = self.sock.recv(4096)
            except socket.timeout:
                continue
            if not chunk:
                raise SystemExit("serial_game_test: connection closed unexpectedly")
            self.buf += chunk.decode(errors="replace")
        # Trim everything up to and including the match, so the next
        # wait_for() only sees genuinely new output.
Read · Jul 22, 17:48:51 · toolu_018WsQ8TJDuwqnMF5spUZNLr
/tmp/claude-1001/-home-martin-workspace-prototypes-boot-to-claude/03468d1c-5b29-4e24-8f0d-2a7435d227ab/scratchpad/record_gui_playthrough.py
result
55	        self.cmd("sendkey " + key_name(c))
56	
57	    def type_line(self, s):
58	        for c in s:
59	            self.sendkey(c)
60	        self.sendkey("\n")
61	
62	    def screendump(self, path):
63	        self.cmd("screendump " + path)
64	
65	
66	def read_serial():
67	    with open(SERIAL_LOG, "rb") as f:
68	        return f.read().decode(errors="replace")
69	
agent · Jul 22, 17:48:54
Fixing `read_serial`/`pump` to track position and consume matched content, matching `serial_game_test.py`'s pattern.
Edit · Jul 22, 17:48:58 · toolu_0124P8iJQcfkmyW6ve9bWUBk
/tmp/claude-1001/-home-martin-workspace-prototypes-boot-to-claude/03468d1c-5b29-4e24-8f0d-2a7435d227ab/scratchpad/record_gui_playthrough.py
- def read_serial():
-     with open(SERIAL_LOG, "rb") as f:
-         return f.read().decode(errors="replace")
+ # A pattern that already scrolled by (e.g. "4) Run", printed every
+ # battle turn) stays a substring of the *whole* log forever - checking
+ # against the full file, like an early version of this script did,
+ # makes every wait after the first matching turn return instantly
+ # instead of waiting for the *next* occurrence. Track a consumed
+ # position and only search what's new, same fix serial_game_test.py
+ # already uses for exactly this reason.
+ _serial_pos = 0
+ 
+ 
+ def new_serial_text():
+     with open(SERIAL_LOG, "rb") as f:
+         f.seek(_serial_pos)
+         return f.read().decode(errors="replace")
+ 
+ 
+ def consume_until(pattern, text):
+     global _serial_pos
+     idx = text.find(pattern)
+     if idx == -1:
+         return False
+     _serial_pos += len((text[: idx + len(pattern)]).encode())
+     return True
result
The file /tmp/claude-1001/-home-martin-workspace-prototypes-boot-to-claude/03468d1c-5b29-4e24-8f0d-2a7435d227ab/scratchpad/record_gui_playthrough.py has been updated successfully. (file state is current in your context — no need to Read it back)
Read · Jul 22, 17:49:05 · toolu_01WKp6TeQxWo9wQkXPKUH3Dy
/tmp/claude-1001/-home-martin-workspace-prototypes-boot-to-claude/03468d1c-5b29-4e24-8f0d-2a7435d227ab/scratchpad/record_gui_playthrough.py
result
140	    path = f"/tmp/rec_frame_{_frame_counter}.ppm"
141	    mon.screendump(path)
142	    pixels = None
143	    for _ in range(25):
144	        time.sleep(0.02)
145	        try:
146	            pixels = read_ppm_frame(path)
147	        except (FileNotFoundError, IndexError, ValueError):
148	            pixels = None
149	        if pixels is not None:
150	            break
151	    try:
152	        os.remove(path)
153	    except FileNotFoundError:
154	        pass
155	    if pixels is None:
156	        return  # skip this frame slot rather than write a bad one
157	    ffmpeg.stdin.write(pixels)
158	
159	
agent · Jul 22, 17:49:09
Right, need to update `pump()` and all call sites. Let me view and rewrite the whole tail of the file cleanly.
Read · Jul 22, 17:49:09 · toolu_01QUztkrg1WNoqxeGQvW74yv
/tmp/claude-1001/-home-martin-workspace-prototypes-boot-to-claude/03468d1c-5b29-4e24-8f0d-2a7435d227ab/scratchpad/record_gui_playthrough.py
result
65 lines
159	
160	def pump(seconds, stop_pattern=None):
161	    """Captures frames for up to `seconds`, stopping early if
162	    stop_pattern shows up in the serial log. Returns True if the pattern
163	    was seen."""
164	    deadline = time.time() + seconds
165	    next_frame = time.time()
166	    while time.time() < deadline:
167	        now = time.time()
168	        if now >= next_frame:
169	            capture_frame()
170	            next_frame += FRAME_INTERVAL
171	        if stop_pattern and stop_pattern in read_serial():
172	            return True
173	        time.sleep(0.01)
174	    return False
175	
176	
177	# --- scripted playthrough ---
178	pump(10, stop_pattern="tiny-os shell")
179	pump(1.0)
180	
181	mon.type_line("play")
182	pump(10, stop_pattern="Choose your starter:")
183	pump(1.5)
184	
185	mon.type_line("1")  # Emberpup
186	pump(10, stop_pattern="4) Run")
187	pump(1.0)
188	
189	game_ended = False
190	for mv in ["3", "1", "3", "1", "3", "1", "3", "1", "3", "1"]:
191	    if "Game over" in read_serial() or "Champion" in read_serial():
192	        game_ended = True
193	        break
194	    mon.type_line(mv)
195	    seen = pump(15, stop_pattern="4) Run")
196	    if not seen:
197	        if "Game over" in read_serial() or "Champion" in read_serial():
198	            game_ended = True
199	        break
200	    pump(0.3)
201	
202	pump(2.0)
203	
204	reached_shell = game_ended
205	if not game_ended:
206	    mon.type_line("quit")
207	    reached_shell = pump(8, stop_pattern="Left the game.")
208	    if not reached_shell:
209	        # the polled (non-interrupt) keyboard driver can drop keys typed
210	        # while it isn't in a read loop - retry once rather than risk
211	        # piling a second command onto a still-open input line.
212	        mon.type_line("quit")
213	        reached_shell = pump(8, stop_pattern="Left the game.")
214	
215	if reached_shell:
216	    pump(1.0)
217	    mon.type_line("help")
218	    pump(8, stop_pattern="commands:")
219	    pump(1.5)
220	else:
221	    pump(1.5)
222	
223	ffmpeg.stdin.close()
Edit · Jul 22, 17:49:28 · toolu_01X5qAygUAsTbmp52GcWG3Fs
/tmp/claude-1001/-home-martin-workspace-prototypes-boot-to-claude/03468d1c-5b29-4e24-8f0d-2a7435d227ab/scratchpad/record_gui_playthrough.py
93 lines
- def pump(seconds, stop_pattern=None):
-     """Captures frames for up to `seconds`, stopping early if
-     stop_pattern shows up in the serial log. Returns True if the pattern
-     was seen."""
-     deadline = time.time() + seconds
-     next_frame = time.time()
-     while time.time() < deadline:
-         now = time.time()
-         if now >= next_frame:
-             capture_frame()
-             next_frame += FRAME_INTERVAL
-         if stop_pattern and stop_pattern in read_serial():
-             return True
-         time.sleep(0.01)
-     return False
- 
- 
- # --- scripted playthrough ---
- pump(10, stop_pattern="tiny-os shell")
- pump(1.0)
- 
- mon.type_line("play")
- pump(10, stop_pattern="Choose your starter:")
- pump(1.5)
- 
- mon.type_line("1")  # Emberpup
- pump(10, stop_pattern="4) Run")
- pump(1.0)
- 
- game_ended = False
- for mv in ["3", "1", "3", "1", "3", "1", "3", "1", "3", "1"]:
-     if "Game over" in read_serial() or "Champion" in read_serial():
-         game_ended = True
-         break
-     mon.type_line(mv)
-     seen = pump(15, stop_pattern="4) Run")
-     if not seen:
-         if "Game over" in read_serial() or "Champion" in read_serial():
-             game_ended = True
-         break
-     pump(0.3)
+ def full_serial():
+     with open(SERIAL_LOG, "rb") as f:
+         return f.read().decode(errors="replace")
+ 
+ 
+ def game_over_seen():
+     text = full_serial()
+     return "Game over" in text or "Champion" in text
+ 
+ 
+ def pump(seconds, stop_pattern=None):
+     """Captures frames for up to `seconds`, stopping early if
+     stop_pattern shows up in *new* serial output (consuming up to and
+     including the match, so the next call only sees what comes after).
+     Returns True if the pattern was seen."""
+     deadline = time.time() + seconds
+     next_frame = time.time()
+     while time.time() < deadline:
+         now = time.time()
+         if now >= next_frame:
+             capture_frame()
+             next_frame += FRAME_INTERVAL
+         if stop_pattern and consume_until(stop_pattern, new_serial_text()):
+             return True
+         time.sleep(0.01)
+     return False
+ 
+ 
+ # --- scripted playthrough ---
+ pump(10, stop_pattern="tiny-os shell")
+ pump(1.0)
+ 
+ mon.type_line("play")
+ pump(10, stop_pattern="Choose your starter:")
+ pump(1.5)
+ 
+ mon.type_line("1")  # Emberpup
+ pump(10, stop_pattern="4) Run")
+ pump(1.0)
+ 
+ game_ended = False
+ for mv in ["3", "1", "3", "1", "3", "1", "3", "1", "3", "1"]:
+     if game_over_seen():
+         game_ended = True
+         break
+     mon.type_line(mv)
+     seen = pump(15, stop_pattern="4) Run")
+     if not seen:
+         if game_over_seen():
+             game_ended = True
+         break
+     pump(0.3)
result
The file /tmp/claude-1001/-home-martin-workspace-prototypes-boot-to-claude/03468d1c-5b29-4e24-8f0d-2a7435d227ab/scratchpad/record_gui_playthrough.py has been updated successfully. (file state is current in your context — no need to Read it back)
Bash · Jul 22, 17:49:35 · toolu_016NL7VkcsJG2YLNGVkkPqAb
$ grep -n "read_serial\b" /tmp/claude-1001/-home-martin-workspace-prototypes-boot-to-claude/03468d1c-5b29-4e24-8f0d-2a7435d227ab/scratchpad/record_gui_playthrough.py
result
(Bash completed with no output)
agent · Jul 22, 17:49:38
Clean (remaining warnings are just Pyright's `Popen.stdin` optional-typing noise). Let's re-run the recording.
Bash · Jul 22, 17:49:38 · toolu_019E8qtvDEx75nAvkc35c6sA
$ pkill -9 -f qemu-system-i386 || true
result (error)
Exit code 1
Bash · Jul 22, 17:49:46 · toolu_013D7vjUySAUVfVsKjmRDf8V
$ cd /home/martin/workspace/prototypes/boot-to-claude
rm -f build/serial.log build/qemu-monitor.sock build/qemu.out
nohup qemu-system-i386 -drive file=build/disk.img,format=raw -display none -serial file:build/serial.log -monitor unix:build/qemu-monitor.sock,server,nowait -no-reboot > build/qemu.out 2>&1 &
disown
sleep 2
ps aux | grep qemu-system-i386 | grep -v grep
result
martin   1764577  100  0.1 1740904 49564 ?       Sl   17:49   0:02 qemu-system-i386 -drive file=build/disk.img,format=raw -display none -serial file:build/serial.log -monitor unix:build/qemu-monitor.sock,server,nowait -no-reboot
Bash · Jul 22, 17:49:55 · toolu_019aC4rDjsuxpriXnpDjEDfi
$ cd /home/martin/workspace/prototypes/boot-to-claude
time python3 /tmp/claude-1001/-home-martin-workspace-prototypes-boot-to-claude/03468d1c-5b29-4e24-8f0d-2a7435d227ab/scratchpad/record_gui_playthrough.py \
  build/qemu-monitor.sock build/serial.log recordings/gui_screencast.mp4 2>&1 | tail -25
result
      Metadata:
        encoder         : Lavc61.19.101 libx264
      Side data:
        cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
frame=    0 fps=0.0 q=0.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=0.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=0.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=0.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=0.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=0.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=0.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=0.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=0.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=0.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=0.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=0.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=0.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=0.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=0.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=0.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=0.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=0.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=0.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=0.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    0 fps=0.0 q=0.0 size=       0KiB time=N/A bitrate=N/A speed=N/A    
frame=    2 fps=0.2 q=23.0 size=       0KiB time=00:00:00.00 bitrate=N/A speed=   0x    
frame=    4 fps=0.3 q=23.0 size=       0KiB time=00:00:00.40 bitrate=   1.0kbits/s speed=0.0348x    
frame=    7 fps=0.6 q=23.0 size=       0KiB time=00:00:01.00 bitrate=   0.4kbits/s speed=0.0833x    
frame=    9 fps=0.7 q=23.0 size=       0KiB time=00:00:01.40 bitrate=   0.3kbits/s speed=0.112x    
frame=   12 fps=0.9 q=23.0 size=       0KiB time=00:00:02.00 bitrate=   0.2kbits/s speed=0.154x    
frame=   14 fps=1.0 q=23.0 size=       0KiB time=00:00:02.40 bitrate=   0.2kbits/s speed=0.178x    
frame=   17 fps=1.2 q=23.0 size=       0KiB time=00:00:03.00 bitrate=   0.1kbits/s speed=0.214x    
frame=   19 fps=1.3 q=23.0 size=       0KiB time=00:00:03.40 bitrate=   0.1kbits/s speed=0.234x    
frame=   22 fps=1.5 q=23.0 size=       0KiB time=00:00:04.00 bitrate=   0.1kbits/s speed=0.267x    
frame=   24 fps=1.5 q=23.0 size=       0KiB time=00:00:04.40 bitrate=   0.1kbits/s speed=0.284x    
frame=   27 fps=1.7 q=23.0 size=       0KiB time=00:00:05.00 bitrate=   0.1kbits/s speed=0.312x    
frame=   28 fps=1.7 q=23.0 size=       0KiB time=00:00:05.20 bitrate=   0.1kbits/s speed=0.315x    
frame=   28 fps=1.6 q=23.0 size=       0KiB time=00:00:05.20 bitrate=   0.1kbits/s speed=0.306x    
frame=   28 fps=1.6 q=23.0 size=       0KiB time=00:00:05.20 bitrate=   0.1kbits/s speed=0.297x    
frame=   28 fps=1.6 q=23.0 size=       0KiB time=00:00:05.20 bitrate=   0.1kbits/s speed=0.289x    
frame=   28 fps=1.5 q=23.0 size=       0KiB time=00:00:05.20 bitrate=   0.1kbits/s speed=0.281x    
frame=   28 fps=1.5 q=23.0 size=       0KiB time=00:00:05.20 bitrate=   0.1kbits/s speed=0.274x    
frame=   28 fps=1.4 q=23.0 size=       0KiB time=00:00:05.20 bitrate=   0.1kbits/s speed=0.267x    
frame=   28 fps=1.4 q=23.0 size=       0KiB time=00:00:05.20 bitrate=   0.1kbits/s speed=0.26x    
frame=   28 fps=1.4 q=23.0 size=       0KiB time=00:00:05.20 bitrate=   0.1kbits/s speed=0.254x    
frame=   28 fps=1.3 q=23.0 size=       0KiB time=00:00:05.20 bitrate=   0.1kbits/s speed=0.248x    
frame=   28 fps=1.3 q=23.0 size=       0KiB time=00:00:05.20 bitrate=   0.1kbits/s speed=0.242x    
frame=   28 fps=1.3 q=23.0 size=       0KiB time=00:00:05.20 bitrate=   0.1kbits/s speed=0.236x    
frame=   28 fps=1.2 q=23.0 size=       0KiB time=00:00:05.20 bitrate=   0.1kbits/s speed=0.231x    
frame=   28 fps=1.2 q=23.0 size=       0KiB time=00:00:05.20 bitrate=   0.1kbits/s speed=0.226x    
frame=   28 fps=1.2 q=23.0 size=       0KiB time=00:00:05.20 bitrate=   0.1kbits/s speed=0.221x    
frame=   28 fps=1.2 q=23.0 size=       0KiB time=00:00:05.20 bitrate=   0.1kbits/s speed=0.217x    
frame=   28 fps=1.1 q=23.0 size=       0KiB time=00:00:05.20 bitrate=   0.1kbits/s speed=0.212x    
frame=   28 fps=1.1 q=23.0 size=       0KiB time=00:00:05.20 bitrate=   0.1kbits/s speed=0.208x    
frame=   28 fps=1.1 q=23.0 size=       0KiB time=00:00:05.20 bitrate=   0.1kbits/s speed=0.204x    
frame=   28 fps=1.1 q=23.0 size=       0KiB time=00:00:05.20 bitrate=   0.1kbits/s speed= 0.2x    
frame=   28 fps=1.1 q=23.0 size=       0KiB time=00:00:05.20 bitrate=   0.1kbits/s speed=0.196x    
frame=   28 fps=1.0 q=23.0 size=       0KiB time=00:00:05.20 bitrate=   0.1kbits/s speed=0.193x    
frame=   28 fps=1.0 q=23.0 size=       0KiB time=00:00:05.20 bitrate=   0.1kbits/s speed=0.189x    
frame=   28 fps=1.0 q=23.0 size=       0KiB time=00:00:05.20 bitrate=   0.1kbits/s speed=0.186x    
frame=   28 fps=1.0 q=23.0 size=       0KiB time=00:00:05.20 bitrate=   0.1kbits/s speed=0.182x    
frame=   28 fps=1.0 q=23.0 size=       0KiB time=00:00:05.20 bitrate=   0.1kbits/s speed=0.179x    
frame=   28 fps=0.9 q=23.0 size=       0KiB time=00:00:05.20 bitrate=   0.1kbits/s speed=0.176x    
frame=   28 fps=0.9 q=23.0 size=       0KiB time=00:00:05.20 bitrate=   0.1kbits/s speed=0.173x    
frame=   28 fps=0.9 q=23.0 size=       0KiB time=00:00:05.20 bitrate=   0.1kbits/s speed=0.17x    
frame=   28 fps=0.9 q=23.0 size=       0KiB time=00:00:05.20 bitrate=   0.1kbits/s speed=0.168x    
frame=   28 fps=0.9 q=23.0 size=       0KiB time=00:00:05.20 bitrate=   0.1kbits/s speed=0.165x    
frame=   28 fps=0.9 q=23.0 size=       0KiB time=00:00:05.20 bitrate=   0.1kbits/s speed=0.162x    
frame=   28 fps=0.9 q=23.0 size=       0KiB time=00:00:05.20 bitrate=   0.1kbits/s speed=0.16x    
frame=   28 fps=0.8 q=23.0 size=       0KiB time=00:00:05.20 bitrate=   0.1kbits/s speed=0.158x    
frame=   28 fps=0.8 q=23.0 size=       0KiB time=00:00:05.20 bitrate=   0.1kbits/s speed=0.155x    
frame=   28 fps=0.8 q=23.0 size=       0KiB time=00:00:05.20 bitrate=   0.1kbits/s speed=0.153x    
[out#0/mp4 @ 0x5fc9eb525a40] video:70KiB audio:0KiB subtitle:0KiB other streams:0KiB global headers:0KiB muxing overhead: 2.595926%
frame=   84 fps=2.4 q=-1.0 Lsize=      72KiB time=00:00:16.40 bitrate=  36.1kbits/s speed=0.478x    
[libx264 @ 0x5fc9eb524500] frame I:2     Avg QP: 4.72  size: 15540
[libx264 @ 0x5fc9eb524500] frame P:21    Avg QP:15.24  size:  1322
[libx264 @ 0x5fc9eb524500] frame B:61    Avg QP:13.33  size:   206
[libx264 @ 0x5fc9eb524500] consecutive B-frames:  2.4%  2.4%  0.0% 95.2%
[libx264 @ 0x5fc9eb524500] mb I  I16..4: 89.1%  0.3% 10.6%
[libx264 @ 0x5fc9eb524500] mb P  I16..4:  1.4%  0.6%  0.8%  P16..4:  1.5%  0.2%  0.1%  0.0%  0.0%    skip:95.4%
[libx264 @ 0x5fc9eb524500] mb B  I16..4:  0.2%  0.0%  0.1%  B16..8:  1.9%  0.0%  0.0%  direct: 0.0%  skip:97.7%  L0:45.5% L1:54.5% BI: 0.0%
[libx264 @ 0x5fc9eb524500] 8x8 transform intra:5.2% inter:5.2%
[libx264 @ 0x5fc9eb524500] coded y,uvDC,uvAC intra: 9.1% 17.6% 16.6% inter: 0.1% 0.1% 0.1%
[libx264 @ 0x5fc9eb524500] i16 v,h,dc,p: 73% 24%  3%  0%
[libx264 @ 0x5fc9eb524500] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu:  8%  4% 87%  0%  0%  0%  0%  0%  0%
[libx264 @ 0x5fc9eb524500] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 40% 22% 28%  2%  3%  1%  1%  1%  1%
[libx264 @ 0x5fc9eb524500] i8c dc,h,v,p: 72% 22%  5%  1%
[libx264 @ 0x5fc9eb524500] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 0x5fc9eb524500] ref P L0: 45.5%  1.5% 48.3%  4.6%
[libx264 @ 0x5fc9eb524500] ref B L0: 86.9% 12.4%  0.7%
[libx264 @ 0x5fc9eb524500] ref B L1: 96.9%  3.1%
[libx264 @ 0x5fc9eb524500] kb/s:34.01
done: recordings/gui_screencast.mp4

real	0m36.562s
user	0m1.074s
sys	0m0.910s
Bash · Jul 22, 17:50:38 · toolu_016yjFMU5psAwYJA1YTSGo51
$ cat /home/martin/workspace/prototypes/boot-to-claude/build/serial.log
result
62 lines
tiny-os: kernel entered
selftest: running
SELFTEST PASS
tiny-os shell. type 'help' for commands.
> play
=== Tiny Monsters ===
Defeat 5 wild monsters to become champion. Type 'quit' any time to leave.
Choose your starter:
1) Emberpup (Fire)
2) Aqualing (Water)
3) Leafling (Grass)
> 1
=== A wild Emberpup appears! (stage 1)
Your Emberpup: HP 28/28
Wild Emberpup: HP 28/28
1) Ember (7)
2) Scratch (5)
3) Flame Burst (10)
4) Run
> 3
Your Emberpup uses Flame Burst!
Wild Emberpup takes 8 damage. (HP 20/28)
Wild Emberpup uses Flame Burst!
Your Emberpup takes 11 damage. (HP 17/28)
Your Emberpup: HP 17/28
Wild Emberpup: HP 20/28
1) Ember (7)
2) Scratch (5)
3) Flame Burst (10)
4) Run
> 1
Your Emberpup uses Ember!
Wild Emberpup takes 5 damage. (HP 15/28)
Wild Emberpup uses Flame Burst!
Your Emberpup takes 12 damage. (HP 5/28)
Your Emberpup: HP 5/28
Wild Emberpup: HP 15/28
1) Ember (7)
2) Scratch (5)
3) Flame Burst (10)
4) Run
> 3
Your Emberpup uses Flame Burst!
Wild Emberpup takes 8 damage. (HP 7/28)
Wild Emberpup uses Scratch!
Your Emberpup takes 3 damage. (HP 2/28)
Your Emberpup: HP 2/28
Wild Emberpup: HP 7/28
1) Ember (7)
2) Scratch (5)
3) Flame Burst (10)
4) Run
> 1
Your Emberpup uses Ember!
Wild Emberpup takes 5 damage. (HP 2/28)
Wild Emberpup uses Ember!
Your Emberpup takes 9 damage. (HP 0/28)
Your Emberpup fainted... Game over! You reached stage 1.
> help
commands: ls, cat <file>, write <file> <text>, rm <file>, run <file>,
          build <src> <out>, exec <file>, play, help, clear, reboot
>
agent · Jul 22, 17:51:09
The RNG got a bad run — Emberpup fainted in just 4 turns. Rather than accept a very short clip, let me add a bit more scripted resilience and retry until we get a longer, more representative playthrough.
Edit · Jul 22, 17:51:14 · toolu_01KK15itPhmFQguquTp8nguH
/tmp/claude-1001/-home-martin-workspace-prototypes-boot-to-claude/03468d1c-5b29-4e24-8f0d-2a7435d227ab/scratchpad/record_gui_playthrough.py
- mon.type_line("1")  # Emberpup
- pump(10, stop_pattern="4) Run")
- pump(1.0)
- 
- game_ended = False
- for mv in ["3", "1", "3", "1", "3", "1", "3", "1", "3", "1"]:
+ mon.type_line("1")  # Emberpup
+ pump(10, stop_pattern="4) Run")
+ pump(1.0)
+ 
+ # "run" first turn costs nothing (a fresh, undamaged encounter follows)
+ # and shows off that mechanic before the attack-heavy remainder - RNG
+ # damage variance means a real playthrough's length isn't otherwise
+ # controllable from here.
+ moves = ["run"] + ["3", "1"] * 10
+ game_ended = False
+ for mv in moves:
result
The file /tmp/claude-1001/-home-martin-workspace-prototypes-boot-to-claude/03468d1c-5b29-4e24-8f0d-2a7435d227ab/scratchpad/record_gui_playthrough.py has been updated successfully. (file state is current in your context — no need to Read it back)
Bash · Jul 22, 17:51:27 · toolu_013P8jGGSUABM9gV2XGyELdL
$ cat > /tmp/claude-1001/-home-martin-workspace-prototypes-boot-to-claude/03468d1c-5b29-4e24-8f0d-2a7435d227ab/scratchpad/run_recording.sh << 'SCRIPT'
#!/bin/bash
set -u
cd /home/martin/workspace/prototypes/boot-to-claude
REC=/tmp/claude-1001/-home-martin-workspace-prototypes-boot-to-claude/03468d1c-5b29-4e24-8f0d-2a7435d227ab/scratchpad/record_gui_playthrough.py
BEST_DUR=0
for attempt in 1 2 3; do
  echo "=== attempt $attempt ==="
  pkill -9 -f qemu-system-i386 >/dev/null 2>&1
  sleep 0.3
  rm -f build/serial.log build/qemu-monitor.sock build/qemu.out
  nohup qemu-system-i386 -drive file=build/disk.img,format=raw -display none \
    -serial file:build/serial.log -monitor unix:build/qemu-monitor.sock,server,nowait \
    -no-reboot > build/qemu.out 2>&1 &
  disown
  sleep 2
  OUT="/tmp/gui_screencast_attempt${attempt}.mp4"
  python3 "$REC" build/qemu-monitor.sock build/serial.log "$OUT" > /tmp/rec_attempt${attempt}.log 2>&1
  DUR=$(ffprobe -v error -show_entries format=duration -of default=noprint_wrappers=1:nokey=1 "$OUT" 2>/dev/null)
  DUR=${DUR%.*}
  DUR=${DUR:-0}
  echo "attempt $attempt duration: ${DUR}s"
  if [ "$DUR" -gt "$BEST_DUR" ]; then
    BEST_DUR=$DUR
    cp "$OUT" recordings/gui_screencast.mp4
  fi
  if [ "$DUR" -ge 60 ]; then
    echo "good enough, stopping"
    break
  fi
done
pkill -9 -f qemu-system-i386 >/dev/null 2>&1
echo "best duration: ${BEST_DUR}s -> recordings/gui_screencast.mp4"
SCRIPT
chmod +x /tmp/claude-1001/-home-martin-workspace-prototypes-boot-to-claude/03468d1c-5b29-4e24-8f0d-2a7435d227ab/scratchpad/run_recording.sh
echo written
result
written
Bash · Jul 22, 17:51:31 · toolu_015XzuGXcCn8USXKEHjmKVnk
$ bash /tmp/claude-1001/-home-martin-workspace-prototypes-boot-to-claude/03468d1c-5b29-4e24-8f0d-2a7435d227ab/scratchpad/run_recording.sh
result
Command did not complete within its 120s timeout and was moved to the background (ID: bxhhwdktx). Output is being written to: /tmp/claude-1001/-home-martin-workspace-prototypes-boot-to-claude/03468d1c-5b29-4e24-8f0d-2a7435d227ab/tasks/bxhhwdktx.output. You will be notified when it completes. To check interim output, use Read on that file path.
agent · Jul 22, 17:53:37
Running in the background; I'll check back once it completes.
Bash · Jul 22, 17:53:39 · toolu_014CQCvjBo7JBe6QJzh6xo2M
$ sleep 90; tail -30 "/tmp/claude-1001/-home-martin-workspace-prototypes-boot-to-claude/03468d1c-5b29-4e24-8f0d-2a7435d227ab/tasks/bxhhwdktx.output" 2>&1
result (error)
<tool_use_error>Blocked: sleep 90 followed by: tail -30 "/tmp/claude-1001/-home-martin-workspace-prototypes-boot-to-claude/03468d1c-5b29-4e24-8f0d-2a7435d227ab/tasks/bxhhwdktx.output". To wait for a condition, use Monitor with an until-loop (e.g. `until <check>; do sleep 2; done`). To wait for a command you started, use run_in_background: true. Do not chain shorter sleeps to work around this block.</tool_use_error>
agent · Jul 22, 17:53:42
I'll wait for the background task's completion notification instead of polling.
ScheduleWakeup · Jul 22, 17:53:43 · toolu_018NMCt8etrtGNbZYtGRWNbM
{
 "delaySeconds": 90,
 "reason": "Waiting on the retry-loop recording script (up to 3 QEMU boot+record attempts) to finish",
 "prompt": "Check on the GUI screencast recording task, then continue: verify recordings/gui_screencast.mp4 looks good, then upload it to monperrus.net under pubdir as requested."
}
result
Next wakeup scheduled for 17:56:00 (in 135s). Nothing more to do this turn — the harness re-invokes you when the wakeup fires or a task-notification arrives.
Bash · Jul 22, 17:53:47 · toolu_016Vj58oANPEek4zTP81oHBF
$ true
result
(Bash completed with no output)
agent · Jul 22, 17:53:50
The retry loop finished. Let's check the result.
ScheduleWakeup · Jul 22, 17:53:50 · toolu_01DU5qn4me1bSsXQmPeYCnJY
{
 "stop": true
}
result
Loop stopped — cancelled 1 pending wakeup(s); no further dynamic-loop wakeups scheduled. If you armed a Monitor for this loop, TaskStop it now; otherwise nothing more to do this turn.
Bash · Jul 22, 17:53:55 · toolu_014Dy16zxESRxW5Wi9SyKdFy
$ cat "/tmp/claude-1001/-home-martin-workspace-prototypes-boot-to-claude/03468d1c-5b29-4e24-8f0d-2a7435d227ab/tasks/bxhhwdktx.output"
result
=== attempt 1 ===
attempt 1 duration: 30s
=== attempt 2 ===
attempt 2 duration: 14s
=== attempt 3 ===
attempt 3 duration: 21s
best duration: 30s -> recordings/gui_screencast.mp4
Bash · Jul 22, 17:54:08 · toolu_012yJa1yHhM4yuVGy7xKnTpg
$ cd /home/martin/workspace/prototypes/boot-to-claude
ls -la recordings/gui_screencast.mp4
ffprobe -v error -show_entries format=duration,size -of default=noprint_wrappers=1 recordings/gui_screencast.mp4
ffmpeg -y -ss 5 -i recordings/gui_screencast.mp4 -frames:v 1 /tmp/check1.png -loglevel error
ffmpeg -y -ss 15 -i recordings/gui_screencast.mp4 -frames:v 1 /tmp/check2.png -loglevel error
ffmpeg -y -ss 27 -i recordings/gui_screencast.mp4 -frames:v 1 /tmp/check3.png -loglevel error
result
-rw-r----- 1 martin martin 149229 Jul 22 17:52 recordings/gui_screencast.mp4
duration=30.400000
size=149229
Read · Jul 22, 17:54:13 · toolu_01MkzeH7YopvBPNnaK5kdtpA
/tmp/check1.png
result
image returned by the tool
agent · Jul 22, 17:54:16
Frame is clean and correct. Let's check the other two.
Read · Jul 22, 17:54:16 · toolu_018oLWjLtpgxYFEwBpooTNmq
/tmp/check2.png
result
image returned by the tool
Bash · Jul 22, 17:54:37 · toolu_014jbobbETXwhpmAfmXtDjsB
$ md5sum /tmp/gui_screencast_attempt1.mp4 /home/martin/workspace/prototypes/boot-to-claude/recordings/gui_screencast.mp4
ffprobe -v error -show_entries format=duration -of default=noprint_wrappers=1:nokey=1 /tmp/gui_screencast_attempt1.mp4 /tmp/gui_screencast_attempt2.mp4 /tmp/gui_screencast_attempt3.mp4
result (error)
Exit code 1
8c2bb4e8a6704e8f2ebd0bb570963945  /tmp/gui_screencast_attempt1.mp4
8c2bb4e8a6704e8f2ebd0bb570963945  /home/martin/workspace/prototypes/boot-to-claude/recordings/gui_screencast.mp4
Argument '/tmp/gui_screencast_attempt2.mp4' provided as input filename, but '/tmp/gui_screencast_attempt1.mp4' was already specified.
agent · Jul 22, 17:55:27
Let me re-examine that frame more carefully at higher zoom to be certain about what it actually shows, rather than trust my low-res reading.
Bash · Jul 22, 17:55:28 · toolu_01HNYacR915gPkdiQFPfMbG8
$ cd /home/martin/workspace/prototypes/boot-to-claude
python3 -c "
from PIL import Image
im = Image.open('/tmp/check2.png')
print(im.size)
im.crop((540,300,940,400)).resize((1200,300), Image.NEAREST).save('/tmp/check2_zoom.png')
"
result
(960, 600)
Read · Jul 22, 17:55:33 · toolu_01QeGzRh3EVdHYkJzEvzM786
/tmp/check2_zoom.png
result
image returned by the tool
Bash · Jul 22, 17:55:46 · toolu_016k26s9BQUgSFZA44Rf44i8
$ cd /home/martin/workspace/prototypes/boot-to-claude
ffmpeg -y -i recordings/gui_screencast.mp4 -ss 15 -frames:v 1 /tmp/check2_accurate.png -loglevel error
ffmpeg -y -i recordings/gui_screencast.mp4 -ss 27 -frames:v 1 /tmp/check3_accurate.png -loglevel error
result
(Bash completed with no output)
Read · Jul 22, 17:55:50 · toolu_015Hvvg4z6yGEBdDnKocHK6C
/tmp/check2_accurate.png
result
image returned by the tool
agent · Jul 22, 17:56:03
Let me trace through the actual video content frame-by-frame to understand what really happened, rather than relying on my memory of an earlier log view.
Bash · Jul 22, 17:56:05 · toolu_01DkNdwV29PUosyDniUJCeAP
$ cd /home/martin/workspace/prototypes/boot-to-claude
for t in 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30; do
  ffmpeg -y -i recordings/gui_screencast.mp4 -ss $t -frames:v 1 /tmp/scan_$(printf %02d $t).png -loglevel error 2>/dev/null
done
python3 -c "
from PIL import Image
imgs = [Image.open(f'/tmp/scan_{t:02d}.png') for t in range(0,31,2)]
w,h = imgs[0].size
grid = Image.new('RGB', (w*4, h*4))
for i, im in enumerate(imgs):
    x = (i % 4) * w
    y = (i // 4) * h
    grid.paste(im, (x,y))
grid.save('/tmp/scan_grid.png')
print(len(imgs))
"
result (error)
claude-sonnet-5[1m] is temporarily unavailable, so auto mode cannot determine the safety of Bash right now. Wait briefly and then try this action again. If it keeps failing, continue with other tasks that don't require this action and come back to it later. Note: reading files, searching code, and other read-only operations do not require the classifier and can still be used.
agent · Jul 22, 17:57:07
You've hit your session limit · resets 6:40pm (Europe/Berlin)
human · Jul 22, 18:52:28
proceed
Bash · Jul 22, 18:52:32 · toolu_01E8N99GYJupDzwKqGgkNbxU
$ cd /home/martin/workspace/prototypes/boot-to-claude
for t in 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30; do
  ffmpeg -y -i recordings/gui_screencast.mp4 -ss $t -frames:v 1 /tmp/scan_$(printf %02d $t).png -loglevel error 2>/dev/null
done
echo done
result
done
Bash · Jul 22, 18:52:40 · toolu_014e3u1HQzM2DeVLt3qvBrmv
$ python3 -c "
from PIL import Image
ts = list(range(0,31,2))
imgs = [Image.open(f'/tmp/scan_{t:02d}.png') for t in ts]
w,h = imgs[0].size
sc = 0.5
w2,h2 = int(w*sc), int(h*sc)
grid = Image.new('RGB', (w2*4, h2*4))
for i, im in enumerate(imgs):
    x = (i % 4) * w2
    y = (i // 4) * h2
    grid.paste(im.resize((w2,h2)), (x,y))
grid.save('/tmp/scan_grid.png')
print(len(imgs), grid.size)
"
result
16 (1920, 1200)
Read · Jul 22, 18:52:46 · toolu_01E7fBERwDzCgfyt7soQwrY4
/tmp/scan_grid.png
result
image returned by the tool
agent · Jul 22, 18:53:04
The full playthrough is actually a great, dense highlight reel: starter select → a mirror-match battle → a decisive win → a super-effective KO → a dramatic final loss. Good to publish. Let's clean up scratch files and upload it.
Bash · Jul 22, 18:53:05 · toolu_01M9rQMrbox6h4jvFAiCzfQk
$ rm -f /tmp/scan_*.png /tmp/check*.png /tmp/rec_test1.ppm /tmp/frame_*.png /tmp/crop_*.png
ls -la /home/martin/workspace/prototypes/boot-to-claude/recordings/
cat /home/martin/.ssh/config 2>/dev/null | grep -A5 "rootmab"
result
total 8964
drwxr-x---  2 martin martin    4096 Jul 22 17:40 .
drwxr-x--- 12 martin martin    4096 Jul 22 17:53 ..
-rw-r-----  1 martin martin   91020 Jul 22 11:54 game_screencast.cast
-rw-r-----  1 martin martin 8852060 Jul 22 13:47 game_screencast.mp4
-rw-r-----  1 martin martin   30190 Jul 22 11:54 game_screencast.txt
-rw-r-----  1 martin martin  149229 Jul 22 17:52 gui_screencast.mp4
Host rootmab
  User martin
  IdentityFile ~/.ssh/root-monperrus.net.20260623.private
  HostName ns334032.ip-37-187-127.eu
  # IPFS UI
  #http://127.0.0.1:5001/webui
agent · Jul 22, 18:53:10
SSH config confirmed. Let's upload to the pubdir, matching the earlier naming convention.
Bash · Jul 22, 18:53:11 · toolu_0126CEsQLo3knSjCsAeVwH8k
$ scp /home/martin/workspace/prototypes/boot-to-claude/recordings/gui_screencast.mp4 \
  rootmab:/home/monperrus.net/www/martin/pubdir/boot-to-claude-tiny-monsters-gui-screencast.mp4
result
(Bash completed with no output)
Bash · Jul 22, 18:53:21 · toolu_01B4XkuacKVS18CVjA2bSUPj
$ ssh rootmab "chmod 755 /home/monperrus.net/www/martin/pubdir/boot-to-claude-tiny-monsters-gui-screencast.mp4 && ls -la /home/monperrus.net/www/martin/pubdir/boot-to-claude-tiny-monsters-gui-screencast.mp4"
result
-rwxr-xr-x 1 martin martin 149229 Jul 22 16:53 /home/monperrus.net/www/martin/pubdir/boot-to-claude-tiny-monsters-gui-screencast.mp4
Bash · Jul 22, 18:53:27 · toolu_01JyEh35VTXgoEHCG1KK38Z7
$ pkill -9 -f qemu-system-i386 || true
rm -f /tmp/gui_screencast_attempt*.mp4 /tmp/rec_attempt*.log /tmp/rec_frame_*.ppm
result (error)
Exit code 1
SendUserFile · Jul 22, 18:53:34 · toolu_01QTyLHtbc8wtbdxWetkUJCn
{
 "files": [
  "/home/martin/workspace/prototypes/boot-to-claude/recordings/gui_screencast.mp4"
 ],
 "caption": "New GUI screencast (30s): starter select → mirror-match Emberpup battle → decisive win → super-effective KO of a Leafling → dramatic final loss. Uploaded to https://monperrus.net/martin/pubdir/boot-to-claude-tiny-monsters-gui-screencast.mp4",
 "status": "proactive"
}
result
1 file delivered to user.
  /home/martin/workspace/prototypes/boot-to-claude/recordings/gui_screencast.mp4 → file_uuid: 9e85d7c3-74c6-41c2-9eed-00687f76105b
agent · Jul 22, 18:53:41
Uploaded to `https://monperrus.net/martin/pubdir/boot-to-claude-tiny-monsters-gui-screencast.mp4` (chmod 755). Recording it required a different pipeline than last time — the graphics only exist in QEMU's VGA framebuffer, not the serial stream, so I drove the game via monitor `sendkey` while periodically `screendump`-ing frames into ffmpeg. Hit and fixed two real bugs along the way: a dimension mismatch (QEMU's screendump PPM is 640×400, not the guest's native 320×200 — feeding that into ffmpeg with the wrong stride produced sheared, ghosted frames) and a stop-pattern matcher that searched the whole cumulative serial log instead of new output, which made every wait after the first match return instantly. Final clip: starter select → run away → mirror-match win → super-effective KO → final loss, 30s.