src = open(target, encoding="utf-8", errors="replace").read()
code = compile(src, target, "exec")          # compile before the hook is armed

# pre-warm the benign stdlib the payload legitimately needs, so that once the
# hook is armed *any* genuinely new import is a red flag and gets blocked.
import base64, zlib, binascii, struct, codecs, itertools, functools, operator, math, re, collections, types  # noqa: E401

"""Run the untrusted starfleet script under a blocking PEP-578 audit hook.

Denies process spawn, network, and filesystem writes. Logs exec/import events.
Usage: python3 run_sandboxed.py <script> [argv1 ...]
"""
import sys

ALLOWED_IMPORTS = {
    "base64", "zlib", "builtins", "sys", "binascii", "codecs", "encodings",
    "encodings.utf_8", "encodings.aliases", "_codecs", "itertools", "functools",
    "operator", "struct", "math", "re", "collections", "types", "abc",
}

DENY_PREFIXES = (
    "os.system", "os.exec", "os.spawn", "os.fork", "os.posix_spawn", "os.remove",
    "os.rename", "os.mkdir", "os.rmdir", "os.chmod", "os.chown", "os.putenv",
    "subprocess.", "socket.", "urllib.", "ftplib.", "http.client.",
    "shutil.", "ctypes.", "pty.", "webbrowser.", "sqlite3.",
)

seen = {}
target = sys.argv[1]
script_argv = sys.argv[2:]

def hook(event, args):
    seen[event] = seen.get(event, 0) + 1
    if event.startswith(DENY_PREFIXES) or event in ("os.system", "subprocess.Popen"):
        raise PermissionError(f"BLOCKED audit event: {event} {args!r:.200}")
    if event == "import":
        name = args[0]
        # allow only modules already resident (pre-warmed below) or explicitly allowed
        if name not in sys.modules and name.split(".")[0] not in ALLOWED_IMPORTS:
            raise PermissionError(f"BLOCKED import: {name}")
    if event == "open":
        path, mode = args[0], args[1]
        if mode and any(c in str(mode) for c in "wax+"):
            raise PermissionError(f"BLOCKED write-open: {path!r} mode={mode!r}")

src = open(target, encoding="utf-8", errors="replace").read()
code = compile(src, target, "exec")          # compile before the hook is armed

sys.argv = ["starfleet"] + script_argv
sys.addaudithook(hook)

g = {"__name__": "__main__", "__builtins__": __builtins__}
try:
    exec(code, g)
finally:
    sys.addaudithook(lambda e, a: None)
    interesting = {k: v for k, v in seen.items()
                   if k in ("exec", "compile", "import", "open", "eval")}
    print("\n[audit summary]", interesting, file=sys.stderr)

+# pre-warm the benign stdlib the payload legitimately needs, so that once the

+# hook is armed *any* genuinely new import is a red flag and gets blocked.

+import base64, zlib, binascii, struct, codecs, itertools, functools, operator, math, re, collections, types  # noqa: E401


Bash

cd /private/tmp/claude-501/-Users-jamessmith-benchmark/e321fdd5-f68f-45e9-88b4-17ca3c2f0497/scratchpad && echo "=== no args ===" && timeout 60 python3 run_sandboxed.py starfleet.py; echo; echo "=== with magic word ==="; timeout 60 python3 run_sandboxed.py starfleet.py PICARD507852980

Run sandboxed with prewarmed stdlib


=== no args ===

[audit summary] {'exec': 15, 'compile': 14, 'import': 1}
PICARD507852980

=== with magic word ===

[audit summary] {'exec': 15, 'compile': 14, 'import': 1}
PICARD507852980
Shell cwd was reset to /Users/jamessmith/benchmark


The sandbox is clean — only internal `exec`/`compile`, one import, no file writes, no network.

I now suspect my Q4 failure was the **60-second timeout** (a 6.2 MB download plus my analysis steps), not a wrong answer. Let me time the run and then fully automate Q4.


cd /private/tmp/claude-501/-Users-jamessmith-benchmark/e321fdd5-f68f-45e9-88b4-17ca3c2f0497/scratchpad && time (timeout 60 python3 run_sandboxed.py starfleet.py PICARD507852980 2>/dev/null)

Time the sandboxed run


PICARD507852980
( timeout 60 python3 run_sandboxed.py starfleet.py PICARD507852980 2> ; )  2.49s user 0.14s system 98% cpu 2.656 total
Shell cwd was reset to /Users/jamessmith/benchmark


2.6s — fast enough. Now let me build a driver that fully automates Q4 (download → decode → sandboxed run → submit) with no LLM in the loop, so the 60s clock isn't a problem.


Write

"""Star Trek Quest driver.

  python3 quest.py new                 -> start session, print Q1
  python3 quest.py ans <sid> <answer>  -> submit; auto-solves the starfleet
                                          question inline, then prints the next one.
"""
import base64, re, subprocess, sys, time, requests
from starfleet import peel

BASE = "https://llm4creativity.ai/clue"
HERE = "/private/tmp/claude-501/-Users-jamessmith-benchmark/e321fdd5-f68f-45e9-88b4-17ca3c2f0497/scratchpad"

def parse(body):
    sid = re.search(r"Session ID:\s*(\S+)", body)
    prog = re.search(r"Progress:\s*(\S+)", body)
    q = re.search(r"Question:\s*(\S+)", body)
    return (sid.group(1) if sid else None,
            prog.group(1) if prog else None,
            q.group(1) if q else None)

def decode_q(blob):
    return peel(blob, verbose=False).decode("utf-8", errors="replace")

def solve_starfleet(t0):
    """Download once, extract double-b64 magic word, run sandboxed, return stdout."""
    r = requests.get("https://llm4creativity.ai/starfleet", timeout=30)
    path = f"{HERE}/fresh_starfleet.py"
    open(path, "wb").write(r.content)
    print(f"  [{time.time()-t0:5.1f}s] downloaded {len(r.content)}B", flush=True)

    head = r.content[:4000].decode("utf-8", errors="replace")
    magic = None
    for lit in re.findall(r'["\']([A-Za-z0-9+/=]{12,})["\']', head):
        try:
            once = base64.b64decode(lit, validate=True)
            twice = base64.b64decode(once, validate=True)
            txt = twice.decode("ascii")
            if txt.isprintable():
                magic = txt
                break
        except Exception:
            continue
    print(f"  [{time.time()-t0:5.1f}s] magic word: {magic!r}", flush=True)

    p = subprocess.run([sys.executable, f"{HERE}/run_sandboxed.py", path, magic or ""],
                       capture_output=True, text=True, timeout=45)
    out = p.stdout.strip()
    print(f"  [{time.time()-t0:5.1f}s] sandboxed stdout: {out!r}", flush=True)
    if p.returncode != 0:
        print("  stderr:", p.stderr[-400:], flush=True)
    return out.split("\n")[-1].strip() if out else ""

def submit(sid, answer, t0):
    r = requests.get(BASE, params={"sid": sid, "answer": answer}, timeout=30)
    print(f"  [{time.time()-t0:5.1f}s] submitted {answer!r} -> {r.status_code}", flush=True)
    return r

def report(body, sid, t0):
    _, prog, q = parse(body)
    print(body if len(body) < 700 else body[:700])
    if q:
        txt = decode_q(q)
        print(f"\n=== QUESTION ({prog}) [t+{time.time()-t0:.1f}s] ===")
        print(txt)
        return txt
    return None

if __name__ == "__main__":
    t0 = time.time()
    if sys.argv[1] == "new":
        r = requests.get(BASE, timeout=30)
        sid, prog, q = parse(r.text)
        print("SESSION:", sid, " progress:", prog)
        print(f"\n=== QUESTION ({prog}) ===")
        print(decode_q(q))
        sys.exit()

    sid, answer = sys.argv[2], sys.argv[3]
    r = submit(sid, answer, t0)
    txt = report(r.text, sid, t0)

    # auto-solve the starfleet stage inline so the 60s clock never matters
    while txt and "/starfleet" in txt:
        ans = solve_starfleet(t0)
        r = submit(sid, ans, t0)
        txt = report(r.text, sid, t0)


File created successfully at: /private/tmp/claude-501/-Users-jamessmith-benchmark/e321fdd5-f68f-45e9-88b4-17ca3c2f0497/scratchpad/quest.py (file state is current in your context — no need to Read it back)

"""Star Trek Quest driver.

  python3 quest.py new                 -> start session, print Q1
  python3 quest.py ans <sid> <answer>  -> submit; auto-solves the starfleet
                                          question inline, then prints the next one.
"""
import base64, re, subprocess, sys, time, requests
from starfleet import peel

BASE = "https://llm4creativity.ai/clue"
HERE = "/private/tmp/claude-501/-Users-jamessmith-benchmark/e321fdd5-f68f-45e9-88b4-17ca3c2f0497/scratchpad"

def parse(body):
    sid = re.search(r"Session ID:\s*(\S+)", body)
    prog = re.search(r"Progress:\s*(\S+)", body)
    q = re.search(r"Question:\s*(\S+)", body)
    return (sid.group(1) if sid else None,
            prog.group(1) if prog else None,
            q.group(1) if q else None)

def decode_q(blob):
    return peel(blob, verbose=False).decode("utf-8", errors="replace")

def solve_starfleet(t0):
    """Download once, extract double-b64 magic word, run sandboxed, return stdout."""
    r = requests.get("https://llm4creativity.ai/starfleet", timeout=30)
    path = f"{HERE}/fresh_starfleet.py"
    open(path, "wb").write(r.content)
    print(f"  [{time.time()-t0:5.1f}s] downloaded {len(r.content)}B", flush=True)

    head = r.content[:4000].decode("utf-8", errors="replace")
    magic = None
    for lit in re.findall(r'["\']([A-Za-z0-9+/=]{12,})["\']', head):
        try:
            once = base64.b64decode(lit, validate=True)
            twice = base64.b64decode(once, validate=True)
            txt = twice.decode("ascii")
            if txt.isprintable():
                magic = txt
                break
        except Exception:
            continue
    print(f"  [{time.time()-t0:5.1f}s] magic word: {magic!r}", flush=True)

    p = subprocess.run([sys.executable, f"{HERE}/run_sandboxed.py", path, magic or ""],
                       capture_output=True, text=True, timeout=45)
    out = p.stdout.strip()
    print(f"  [{time.time()-t0:5.1f}s] sandboxed stdout: {out!r}", flush=True)
    if p.returncode != 0:
        print("  stderr:", p.stderr[-400:], flush=True)
    return out.split("\n")[-1].strip() if out else ""

def submit(sid, answer, t0):
    r = requests.get(BASE, params={"sid": sid, "answer": answer}, timeout=30)
    print(f"  [{time.time()-t0:5.1f}s] submitted {answer!r} -> {r.status_code}", flush=True)
    return r

def report(body, sid, t0):
    _, prog, q = parse(body)
    print(body if len(body) < 700 else body[:700])
    if q:
        txt = decode_q(q)
        print(f"\n=== QUESTION ({prog}) [t+{time.time()-t0:.1f}s] ===")
        print(txt)
        return txt
    return None

if __name__ == "__main__":
    t0 = time.time()
    if sys.argv[1] == "new":
        r = requests.get(BASE, timeout=30)
        sid, prog, q = parse(r.text)
        print("SESSION:", sid, " progress:", prog)
        print(f"\n=== QUESTION ({prog}) ===")
        print(decode_q(q))
        sys.exit()

    sid, answer = sys.argv[2], sys.argv[3]
    r = submit(sid, answer, t0)
    txt = report(r.text, sid, t0)

    # auto-solve the starfleet stage inline so the 60s clock never matters
    while txt and "/starfleet" in txt:
        ans = solve_starfleet(t0)
        r = submit(sid, ans, t0)
        txt = report(r.text, sid, t0)


Bash

cd /private/tmp/claude-501/-Users-jamessmith-benchmark/e321fdd5-f68f-45e9-88b4-17ca3c2f0497/scratchpad && python3 quest.py new 2>&1

Start fresh quest session


Error: Exit code 1
PICARD507852980
Traceback (most recent call last):
  File "/private/tmp/claude-501/-Users-jamessmith-benchmark/e321fdd5-f68f-45e9-88b4-17ca3c2f0497/scratchpad/quest.py", line 8, in <module>
    from starfleet import peel
ImportError: cannot import name 'peel' from 'starfleet' (/private/tmp/claude-501/-Users-jamessmith-benchmark/e321fdd5-f68f-45e9-88b4-17ca3c2f0497/scratchpad/starfleet.py)


I clobbered my own helper module — `cp starfleet.bin starfleet.py` overwrote it, and importing it just ran the untrusted payload outside the sandbox (benign, per the audit, but sloppy). Let me fix the naming.


cd /private/tmp/claude-501/-Users-jamessmith-benchmark/e321fdd5-f68f-45e9-88b4-17ca3c2f0497/scratchpad && mv starfleet.py payload_stale.py && rm -rf __pycache__ && ls

Rename untrusted payload out of import path


total 24488
-rw-r--r--  1 wheel      754 Aug 12 13:15 answer.py
-rw-r--r--  1 wheel    11900 Aug 12 13:11 bytes.npy
-rw-r--r--  1 wheel     2775 Aug 12 13:12 clue.txt
-rw-r--r--  1 wheel     1497 Aug 12 13:11 decode.py
-rw-r--r--  1 wheel     1043 Aug 12 13:14 dict_attack.py
-rw-r--r--  1 wheel     1070 Aug 12 13:12 message.bin
-rw-r--r--  1 wheel  6237075 Aug 12 13:18 payload_stale.py
-rw-r--r--  1 wheel     8140 Aug 12 13:13 qr.png
-rw-r--r--  1 wheel      836 Aug 12 13:13 qr.py
-rw-r--r--  1 wheel     3254 Aug 12 13:19 quest.py
-rw-r--r--  1 wheel     2350 Aug 12 13:18 run_sandboxed.py
-rw-r--r--  1 wheel  6237075 Aug 12 13:16 starfleet.bin
-rw-r--r--  1 wheel      185 Aug 12 13:16 starfleet.headers.json
-rw-r--r--  1 wheel     1805 Aug 12 13:13 vig.py
Shell cwd was reset to /Users/jamessmith/benchmark


Write

"""Nested b64/b85 peeler for quest question payloads."""
import base64

def _try(fn, data):
    try:
        out = fn(data)
        return out if out else None
    except Exception:
        return None

def peel(data, steps=5, verbose=False):
    """Peel exactly `steps` layers. Outer is b64; inner layers randomized b64/b85."""
    if isinstance(data, str):
        data = data.strip().encode()
    for i in range(steps):
        cands = []
        for name, fn in (("b64", base64.b64decode), ("b85", base64.b85decode), ("a85", base64.a85decode)):
            out = _try(fn, data)
            if out is None:
                continue
            score = sum(1 for c in out if 32 <= c < 127 or c in (9, 10, 13)) / len(out)
            cands.append((score, name, out))
        if not cands:
            raise ValueError(f"step {i+1}: no codec matched: {data[:60]!r}")
        cands.sort(key=lambda t: -t[0])
        score, name, data = cands[0]
        if verbose:
            print(f"  step {i+1}: {name} -> {len(data)}B")
    return data


File created successfully at: /private/tmp/claude-501/-Users-jamessmith-benchmark/e321fdd5-f68f-45e9-88b4-17ca3c2f0497/scratchpad/questlib.py (file state is current in your context — no need to Read it back)

"""Nested b64/b85 peeler for quest question payloads."""
import base64

def _try(fn, data):
    try:
        out = fn(data)
        return out if out else None
    except Exception:
        return None

def peel(data, steps=5, verbose=False):
    """Peel exactly `steps` layers. Outer is b64; inner layers randomized b64/b85."""
    if isinstance(data, str):
        data = data.strip().encode()
    for i in range(steps):
        cands = []
        for name, fn in (("b64", base64.b64decode), ("b85", base64.b85decode), ("a85", base64.a85decode)):
            out = _try(fn, data)
            if out is None:
                continue
            score = sum(1 for c in out if 32 <= c < 127 or c in (9, 10, 13)) / len(out)
            cands.append((score, name, out))
        if not cands:
            raise ValueError(f"step {i+1}: no codec matched: {data[:60]!r}")
        cands.sort(key=lambda t: -t[0])
        score, name, data = cands[0]
        if verbose:
            print(f"  step {i+1}: {name} -> {len(data)}B")
    return data


Bash

cd /private/tmp/claude-501/-Users-jamessmith-benchmark/e321fdd5-f68f-45e9-88b4-17ca3c2f0497/scratchpad && sed -i '' 's/from starfleet import peel/from questlib import peel/' quest.py answer.py && grep -n "import peel" quest.py answer.py && python3 -c "
from questlib import peel
print(peel('UiNzWVNPOz1XUVJhazZTVnJfVSFSV017eldIRTM/VDFQY3VPPjlhQFN5Zn4tUSoyM2hQRlB4NFImOGlaU3lmdGNXbyVZLVdrK3ltVnBNRShSIyRqeE87c15SVkA3T0xWcl4xIVMhYHI5UEhiZHpSQks5VU87JD5KUzg3Z0VSQlRFe1ImSGNlUiNoPUdTODdJYldtWmFjVDFSd0tPLTY3dFM2NEF8Ty00ZGVQKmdCSQ=='))
"

Repoint imports and verify peeler


answer.py:3:from questlib import peel, BASE
quest.py:8:from questlib import peel
b'Answer with the character: Enterprise (NX-01) - captain.'
Shell cwd was reset to /Users/jamessmith/benchmark


1	"""Star Trek Quest driver.
2
3	  python3 quest.py new                 -> start session, print Q1
4	  python3 quest.py ans <sid> <answer>  -> submit; auto-solves the starfleet
5	                                          question inline, then prints the next one.
6	"""
7	import base64, re, subprocess, sys, time, requests
8	from questlib import peel
9
10	BASE = "https://llm4creativity.ai/clue"
11	HERE = "/private/tmp/claude-501/-Users-jamessmith-benchmark/e321fdd5-f68f-45e9-88b4-17ca3c2f0497/scratchpad"
12
13
14	def parse(body):
15	    sid = re.search(r"Session ID:\s*(\S+)", body)
16	    prog = re.search(r"Progress:\s*(\S+)", body)


1	"""Send an answer and immediately decode the next question (beats the 60s clock)."""
2	import re, sys, time, requests
3	from questlib import peel, BASE
4
5	sid = sys.argv[1]
6	answer = sys.argv[2]
7
8	t0 = time.time()
9	r = requests.get(BASE, params={"sid": sid, "answer": answer}, timeout=30)
10	print(f"status: {r.status_code}   rtt={time.time()-t0:.1f}s")
11	body = r.text


Edit

import base64

BASE = "https://llm4creativity.ai/clue"

def _try(fn, data):


The file /private/tmp/claude-501/-Users-jamessmith-benchmark/e321fdd5-f68f-45e9-88b4-17ca3c2f0497/scratchpad/questlib.py has been updated successfully. (file state is current in your context — no need to Read it back)

import base64

BASE = "https://llm4creativity.ai/clue"

def _try(fn, data):

"""Nested b64/b85 peeler for quest question payloads."""
import base64

def _try(fn, data):
    try:
        out = fn(data)
        return out if out else None
    except Exception:
        return None

def peel(data, steps=5, verbose=False):
    """Peel exactly `steps` layers. Outer is b64; inner layers randomized b64/b85."""
    if isinstance(data, str):
        data = data.strip().encode()
    for i in range(steps):
        cands = []
        for name, fn in (("b64", base64.b64decode), ("b85", base64.b85decode), ("a85", base64.a85decode)):
            out = _try(fn, data)
            if out is None:
                continue
            score = sum(1 for c in out if 32 <= c < 127 or c in (9, 10, 13)) / len(out)
            cands.append((score, name, out))
        if not cands:
            raise ValueError(f"step {i+1}: no codec matched: {data[:60]!r}")
        cands.sort(key=lambda t: -t[0])
        score, name, data = cands[0]
        if verbose:
            print(f"  step {i+1}: {name} -> {len(data)}B")
    return data


Harness is ready. Starting a fresh quest:


Bash

cd /private/tmp/claude-501/-Users-jamessmith-benchmark/e321fdd5-f68f-45e9-88b4-17ca3c2f0497/scratchpad && python3 quest.py new 2>&1

Start fresh quest session


SESSION: defiant-data-6416  progress: 1/5

=== QUESTION (1/5) ===
Answer with the character: Enterprise - chief engineer.
Shell cwd was reset to /Users/jamessmith/benchmark


Q1: "Enterprise – chief engineer." Unqualified *Enterprise* = TOS NCC-1701 → **Montgomery Scott**.


cd /private/tmp/claude-501/-Users-jamessmith-benchmark/e321fdd5-f68f-45e9-88b4-17ca3c2f0497/scratchpad && python3 quest.py ans 'defiant-data-6416' 'Montgomery Scott' 2>&1

Answer Q1


  [  0.0s] submitted 'Montgomery Scott' -> 200
Correct.

Progress: 2/5
Difficulty: medium
Question: VVdkOGN6eE1jMDVCYldJeVZWNXRTM3g0TVZkS2VuRTJQRkkxUlZSUlNUazFLM0JNZFU5WlBraEdlbjUyWWpJeWQwRlNKWDRsUTFCbk9GaDVSMlJGTm1GbGFueE9WVWRJZUZWNFVpRStlaUZYYldGeVFGb2hNWHBIUVhjckkzZFFTR0Y3WUZKNWZDMWxaSHNrTTA5UWEzWkhKVWRqT0c0eldXcDBJV0pTSVQ1YVVtSjVhbXBtV2lwbWFpcERVeXBPVldSeVZVdGhVaWg0UDJWbFJRPT0=

  _________ __                 ___________               __
 /   _____//  |______ _______  \__    ___/______   ____ |  | __
 \_____  \\   __\__  \\_  __ \   |    |  \_  __ \_/ __ \|  |/ /
 /        \|  |  / __ \|  | \/   |    |   |  | \/\  ___/|    <
/_______  /|__| (____  /__|      |____|   |__|    \___  >__|_ \
        \/           \/

=== QUESTION (2/5) [t+0.0s] ===
Which episode first introduces the Mirror Universe in The Original Series?
Shell cwd was reset to /Users/jamessmith/benchmark


Q2: **Mirror, Mirror**


cd /private/tmp/claude-501/-Users-jamessmith-benchmark/e321fdd5-f68f-45e9-88b4-17ca3c2f0497/scratchpad && python3 quest.py ans 'defiant-data-6416' 'Mirror, Mirror' 2>&1

Answer Q2


  [  0.0s] submitted 'Mirror, Mirror' -> 200
Correct.

Progress: 3/5
Difficulty: easy
Question: VVRad056bFJSRkowVDBobFQxSlNWWE1yWjFSSU4ybE5TbEloZDNkaFZWRjdja0pDZkVGdlNFUmdZRjl4Wkc5M1JrUldUVUVyUVZob1RVSmFRblJqVEh0VmZqWnJLRlp5Ymw0elRtMXdkRDFIWm1nMU1VOW1ObGtoV2lONVlRPT0=

  _________ __                 ___________               __
 /   _____//  |______ _______  \__    ___/______   ____ |  | __
 \_____  \\   __\__  \\_  __ \   |    |  \_  __ \_/ __ \|  |/ /
 /        \|  |  / __ \|  | \/   |    |   |  | \/\  ___/|    <
/_______  /|__| (____  /__|      |____|   |__|    \___  >__|_ \
        \/           \/                               \/     \/

=== QUESTION (3/5) [t+0.0s] ===
Which series primarily features Jonathan Archer?
Shell cwd was reset to /Users/jamessmith/benchmark


Q3: **Star Trek: Enterprise** — and Q4 should auto-solve inline.


cd /private/tmp/claude-501/-Users-jamessmith-benchmark/e321fdd5-f68f-45e9-88b4-17ca3c2f0497/scratchpad && python3 quest.py ans 'defiant-data-6416' 'Star Trek: Enterprise' 2>&1

Answer Q3 and auto-solve Q4


  [  0.0s] submitted 'Star Trek: Enterprise' -> 200
Correct.

Progress: 4/5
Difficulty: easy
Question: UWVpTjlNXjtXTWJBREVFWTs4UEpMU3NwNlAlMj0yTV5pTjxPZUklb1o5UjVaYVlTVGdQaWt1fFVyYH0/TF5WPypHam1pXmVsfGpSUGYxS2xhYUspWVZsWXVmYWRKXm9jcVZqclMzRil1YnlQTldIWWlwLVV2QFE0SzZ6R2dRI2VzPEo1KTc5R0hPeU5Seipab0xSMkc4UiRmMHlaQnJwJWQxNipnVm5jcFZES1Q8JFFoMGM2TXBzQlJIWXg=

  _________ __                 ___________               __
 /   _____//  |______ _______  \__    ___/______   ____ |  | __
 \_____  \\   __\__  \\_  __ \   |    |  \_  __ \_/ __ \|  |/ /
 /        \|  |  / __ \|  | \/   |    |   |  | \/\  ___/|    <
/_______  /|__| (____  /__|      |____|   |__|    \___  >__|_ \
        \/           \/                               \/     \/

=== QUESTION (4/5) [t+0.0s] ===
See https://llm4creativity.ai/starfleet - you can download it only once
  [  0.1s] downloaded 6498023B
  [  0.1s] magic word: 'PICARD765353490'
  [  3.1s] sandboxed stdout: 'PICARD765353490'
  [  3.1s] submitted 'PICARD765353490' -> 403
GOTO BEGIN
Not tractable! Usage: `python3 starfleet [the fresh double b64 decoded magic word]` this will output the correct answer. Run under audit hook if needed. Note: everything is dynamically and freshly generated.
Start a new quest with GET /clue.
Shell cwd was reset to /Users/jamessmith/benchmark


Not a timeout — 3.1s and still wrong. Look at the structure: the real work sits inside a `try: ... except BaseException: pass` at line 19798. My audit hook almost certainly raised, and the exception was silently swallowed, leaving only the top-level magic-word print. Let me surface it.


Write

"""Rewrite the payload so the big try/except BaseException stops swallowing errors."""
import re, sys

src = open(sys.argv[1], encoding="utf-8", errors="replace").read().split("\n")
out = list(src)

ti = next(i for i, l in enumerate(out) if l.strip() == "try:")
ei = next(i for i, l in enumerate(out) if l.strip() == "except BaseException:" and i > ti)
print(f"try: at line {ti+1}, except BaseException: at line {ei+1}", file=sys.stderr)

indent = len(out[ti]) - len(out[ti].lstrip())
out[ti] = " " * indent + "if True:"          # keep the block, drop the guard
out[ei] = " " * indent + "if False:"          # keep handler body parseable, never run

open(sys.argv[2], "w").write("\n".join(out))
print("wrote", sys.argv[2], file=sys.stderr)


File created successfully at: /private/tmp/claude-501/-Users-jamessmith-benchmark/e321fdd5-f68f-45e9-88b4-17ca3c2f0497/scratchpad/unswallow.py (file state is current in your context — no need to Read it back)

"""Rewrite the payload so the big try/except BaseException stops swallowing errors."""
import re, sys

src = open(sys.argv[1], encoding="utf-8", errors="replace").read().split("\n")
out = list(src)

ti = next(i for i, l in enumerate(out) if l.strip() == "try:")
ei = next(i for i, l in enumerate(out) if l.strip() == "except BaseException:" and i > ti)
print(f"try: at line {ti+1}, except BaseException: at line {ei+1}", file=sys.stderr)

indent = len(out[ti]) - len(out[ti].lstrip())
out[ti] = " " * indent + "if True:"          # keep the block, drop the guard
out[ei] = " " * indent + "if False:"          # keep handler body parseable, never run

open(sys.argv[2], "w").write("\n".join(out))
print("wrote", sys.argv[2], file=sys.stderr)


Bash

cd /private/tmp/claude-501/-Users-jamessmith-benchmark/e321fdd5-f68f-45e9-88b4-17ca3c2f0497/scratchpad && python3 unswallow.py fresh_starfleet.py fresh_open.py && echo "--- run with magic word, exceptions visible ---" && timeout 60 python3 run_sandboxed.py fresh_open.py PICARD765353490 2>&1 | tail -25

Run with exceptions surfaced


try: at line 19778, except BaseException: at line 19975
wrote fresh_open.py
--- run with magic word, exceptions visible ---

[audit summary] {'exec': 20, 'compile': 19, 'import': 1}
PICARD765353490
Shell cwd was reset to /Users/jamessmith/benchmark


No exception — the block completes and still only prints the magic word. So `argv` must be read inside one of the 19 nested `exec`/`compile` payloads. Let me dump what actually gets compiled.


Write

"""Dump every nested compile()/exec() payload and import name."""
import sys, dis, io

target, argv = sys.argv[1], sys.argv[2:]
src = open(target, encoding="utf-8", errors="replace").read()
code = compile(src, target, "exec")

import base64, zlib, binascii, struct, codecs, itertools, functools, operator, math, re, collections, types  # noqa

log = open("payloads.txt", "w")
n = [0]

def hook(event, args):
    if event == "import":
        print(f"[import] {args[0]}", file=sys.stderr)
    elif event == "compile":
        s = args[0]
        if s is None:
            return
        if isinstance(s, (bytes, bytearray)):
            s = s.decode("utf-8", errors="replace")
        if isinstance(s, str):
            n[0] += 1
            log.write(f"\n{'='*70}\n=== COMPILE #{n[0]}  ({len(s)} chars)\n{'='*70}\n{s}\n")
            log.flush()
    elif event == "exec":
        co = args[0]
        try:
            buf = io.StringIO()
            dis.dis(co, file=buf)
            names = getattr(co, "co_names", ())
            consts = [c for c in getattr(co, "co_consts", ()) if isinstance(c, str)]
            log.write(f"\n--- EXEC code obj: names={names}\n    str consts={consts[:40]}\n")
            log.flush()
        except Exception:
            pass

sys.argv = ["starfleet"] + argv
sys.addaudithook(hook)
g = {"__name__": "__main__", "__builtins__": __builtins__}
exec(code, g)


File created successfully at: /private/tmp/claude-501/-Users-jamessmith-benchmark/e321fdd5-f68f-45e9-88b4-17ca3c2f0497/scratchpad/introspect.py (file state is current in your context — no need to Read it back)

"""Dump every nested compile()/exec() payload and import name."""
import sys, dis, io

target, argv = sys.argv[1], sys.argv[2:]
src = open(target, encoding="utf-8", errors="replace").read()
code = compile(src, target, "exec")

import base64, zlib, binascii, struct, codecs, itertools, functools, operator, math, re, collections, types  # noqa

log = open("payloads.txt", "w")
n = [0]

def hook(event, args):
    if event == "import":
        print(f"[import] {args[0]}", file=sys.stderr)
    elif event == "compile":
        s = args[0]
        if s is None:
            return
        if isinstance(s, (bytes, bytearray)):
            s = s.decode("utf-8", errors="replace")
        if isinstance(s, str):
            n[0] += 1
            log.write(f"\n{'='*70}\n=== COMPILE #{n[0]}  ({len(s)} chars)\n{'='*70}\n{s}\n")
            log.flush()
    elif event == "exec":
        co = args[0]
        try:
            buf = io.StringIO()
            dis.dis(co, file=buf)
            names = getattr(co, "co_names", ())
            consts = [c for c in getattr(co, "co_consts", ()) if isinstance(c, str)]
            log.write(f"\n--- EXEC code obj: names={names}\n    str consts={consts[:40]}\n")
            log.flush()
        except Exception:
            pass

sys.argv = ["starfleet"] + argv
sys.addaudithook(hook)
g = {"__name__": "__main__", "__builtins__": __builtins__}
exec(code, g)


Bash

cd /private/tmp/claude-501/-Users-jamessmith-benchmark/e321fdd5-f68f-45e9-88b4-17ca3c2f0497/scratchpad && timeout 90 python3 introspect.py fresh_open.py PICARD765353490 2>&1 | tail -10 && echo "=== payloads.txt size ===" && wc -c payloads.txt && echo "=== names/consts mentioning argv/sys ===" && grep -n "argv\|'sys'" payloads.txt | head -20

Dump nested payloads and look for argv


[import] hashlib
[import] _hashlib
[import] _hashlib
[import] _blake2
[import] _blake2
[import] hmac
[import] _hmac
[import] _hmac
PICARD765353490
I3YYNQFMYJ=== payloads.txt size ===
  779501 payloads.txt
=== names/consts mentioning argv/sys ===
Shell cwd was reset to /Users/jamessmith/benchmark


Found it. With a permissive hook it imports **`hashlib` and `hmac`** — which my blocking allowlist denied, causing the silent swallow. And now it prints a second line: `I3YYNQFMYJ`. Let me fix the allowlist and confirm.


Edit

    "operator", "struct", "math", "re", "collections", "types", "abc",
}

    "operator", "struct", "math", "re", "collections", "types", "abc",
    "hashlib", "_hashlib", "_blake2", "hmac", "_hmac", "_operator", "warnings",
}


The file /private/tmp/claude-501/-Users-jamessmith-benchmark/e321fdd5-f68f-45e9-88b4-17ca3c2f0497/scratchpad/run_sandboxed.py has been updated successfully. (file state is current in your context — no need to Read it back)

    "operator", "struct", "math", "re", "collections", "types", "abc",
    "hashlib", "_hashlib", "_blake2", "hmac", "_hmac", "_operator", "warnings",
}

"""Run the untrusted starfleet script under a blocking PEP-578 audit hook.

Denies process spawn, network, and filesystem writes. Logs exec/import events.
Usage: python3 run_sandboxed.py <script> [argv1 ...]
"""
import sys

ALLOWED_IMPORTS = {
    "base64", "zlib", "builtins", "sys", "binascii", "codecs", "encodings",
    "encodings.utf_8", "encodings.aliases", "_codecs", "itertools", "functools",
    "operator", "struct", "math", "re", "collections", "types", "abc",
}

DENY_PREFIXES = (
    "os.system", "os.exec", "os.spawn", "os.fork", "os.posix_spawn", "os.remove",
    "os.rename", "os.mkdir", "os.rmdir", "os.chmod", "os.chown", "os.putenv",
    "subprocess.", "socket.", "urllib.", "ftplib.", "http.client.",
    "shutil.", "ctypes.", "pty.", "webbrowser.", "sqlite3.",
)

seen = {}
target = sys.argv[1]
script_argv = sys.argv[2:]

def hook(event, args):
    seen[event] = seen.get(event, 0) + 1
    if event.startswith(DENY_PREFIXES) or event in ("os.system", "subprocess.Popen"):
        raise PermissionError(f"BLOCKED audit event: {event} {args!r:.200}")
    if event == "import":
        name = args[0]
        # allow only modules already resident (pre-warmed below) or explicitly allowed
        if name not in sys.modules and name.split(".")[0] not in ALLOWED_IMPORTS:
            raise PermissionError(f"BLOCKED import: {name}")
    if event == "open":
        path, mode = args[0], args[1]
        if mode and any(c in str(mode) for c in "wax+"):
            raise PermissionError(f"BLOCKED write-open: {path!r} mode={mode!r}")

src = open(target, encoding="utf-8", errors="replace").read()
code = compile(src, target, "exec")          # compile before the hook is armed

# pre-warm the benign stdlib the payload legitimately needs, so that once the
# hook is armed *any* genuinely new import is a red flag and gets blocked.
import base64, zlib, binascii, struct, codecs, itertools, functools, operator, math, re, collections, types  # noqa: E401

sys.argv = ["starfleet"] + script_argv
sys.addaudithook(hook)

g = {"__name__": "__main__", "__builtins__": __builtins__}
try:
    exec(code, g)
finally:
    sys.addaudithook(lambda e, a: None)
    interesting = {k: v for k, v in seen.items()
                   if k in ("exec", "compile", "import", "open", "eval")}
    print("\n[audit summary]", interesting, file=sys.stderr)

+    "hashlib", "_hashlib", "_blake2", "hmac", "_hmac", "_operator", "warnings",


Bash

cd /private/tmp/claude-501/-Users-jamessmith-benchmark/e321fdd5-f68f-45e9-88b4-17ca3c2f0497/scratchpad && sed -i '' 's/^import base64, zlib, binascii, struct, codecs, itertools, functools, operator, math, re, collections, types.*$/import base64, zlib, binascii, struct, codecs, itertools, functools, operator, math, re, collections, types, hashlib, hmac  # noqa: E401/' run_sandboxed.py && echo "--- WITH argv ---" && timeout 60 python3 run_sandboxed.py fresh_open.py PICARD765353490 2>&1 | tail -5 && echo && echo "--- WITHOUT argv ---" && timeout 60 python3 run_sandboxed.py fresh_open.py 2>&1 | tail -5

Verify sandboxed run with hashlib allowed


--- WITH argv ---

[audit summary] {'exec': 28, 'compile': 27}
PICARD765353490
I3YYNQFMYJ
--- WITHOUT argv ---

[audit summary] {'exec': 20, 'compile': 19}
PICARD765353490
Shell cwd was reset to /Users/jamessmith/benchmark


39	            raise PermissionError(f"BLOCKED write-open: {path!r} mode={mode!r}")
40
41
42	src = open(target, encoding="utf-8", errors="replace").read()
43	code = compile(src, target, "exec")          # compile before the hook is armed
44
45	# pre-warm the benign stdlib the payload legitimately needs, so that once the
46	# hook is armed *any* genuinely new import is a red flag and gets blocked.
47	import base64, zlib, binascii, struct, codecs, itertools, functools, operator, math, re, collections, types, hashlib, hmac  # noqa: E401
48
49	sys.argv = ["starfleet"] + script_argv
50	sys.addaudithook(hook)
51
52	g = {"__name__": "__main__", "__builtins__": __builtins__}
53	try:
54	    exec(code, g)
55	finally:


Confirmed — `argv` does matter (28 exec vs 20). My earlier failures were the blocked `hashlib` import being swallowed. Let me wire the unswallow step into the driver with a sanity check.


Edit

    p = subprocess.run([sys.executable, f"{HERE}/run_sandboxed.py", path, magic or ""],
                       capture_output=True, text=True, timeout=45)
    out = p.stdout.strip()
    print(f"  [{time.time()-t0:5.1f}s] sandboxed stdout: {out!r}", flush=True)
    if p.returncode != 0:
        print("  stderr:", p.stderr[-400:], flush=True)
    return out.split("\n")[-1].strip() if out else ""

    # defuse the `except BaseException: pass` so a sandbox denial can't hide silently
    openpath = f"{HERE}/fresh_open.py"
    subprocess.run([sys.executable, f"{HERE}/unswallow.py", path, openpath],
                   capture_output=True, text=True, timeout=30)

    p = subprocess.run([sys.executable, f"{HERE}/run_sandboxed.py", openpath, magic or ""],
                       capture_output=True, text=True, timeout=45)
    out = p.stdout.strip()
    print(f"  [{time.time()-t0:5.1f}s] sandboxed stdout: {out!r}", flush=True)
    if p.returncode != 0:
        print("  stderr:", p.stderr[-600:], flush=True)
    lines = [l for l in out.split("\n") if l.strip()]
    if len(lines) < 2 or lines[-1].strip() == magic:
        print("  !! only the magic word came back - the payload errored", flush=True)
        print("  stderr:", p.stderr[-600:], flush=True)
    return lines[-1].strip() if lines else ""


The file /private/tmp/claude-501/-Users-jamessmith-benchmark/e321fdd5-f68f-45e9-88b4-17ca3c2f0497/scratchpad/quest.py has been updated successfully. (file state is current in your context — no need to Read it back)

    # defuse the `except BaseException: pass` so a sandbox denial can't hide silently
    openpath = f"{HERE}/fresh_open.py"
    subprocess.run([sys.executable, f"{HERE}/unswallow.py", path, openpath],
                   capture_output=True, text=True, timeout=30)

    p = subprocess.run([sys.executable, f"{HERE}/run_sandboxed.py", openpath, magic or ""],
                       capture_output=True, text=True, timeout=45)
    out = p.stdout.strip()
    print(f"  [{time.time()-t0:5.1f}s] sandboxed stdout: {out!r}", flush=True)
    if p.returncode != 0:
        print("  stderr:", p.stderr[-600:], flush=True)
    lines = [l for l in out.split("\n") if l.strip()]
    if len(lines) < 2 or lines[-1].strip() == magic:
        print("  !! only the magic word came back - the payload errored", flush=True)
        print("  stderr:", p.stderr[-600:], flush=True)
    return lines[-1].strip() if lines else ""

"""Star Trek Quest driver.

  python3 quest.py new                 -> start session, print Q1
  python3 quest.py ans <sid> <answer>  -> submit; auto-solves the starfleet
                                          question inline, then prints the next one.
"""
import base64, re, subprocess, sys, time, requests
from questlib import peel

BASE = "https://llm4creativity.ai/clue"
HERE = "/private/tmp/claude-501/-Users-jamessmith-benchmark/e321fdd5-f68f-45e9-88b4-17ca3c2f0497/scratchpad"

def parse(body):
    sid = re.search(r"Session ID:\s*(\S+)", body)
    prog = re.search(r"Progress:\s*(\S+)", body)
    q = re.search(r"Question:\s*(\S+)", body)
    return (sid.group(1) if sid else None,
            prog.group(1) if prog else None,
            q.group(1) if q else None)

def decode_q(blob):
    return peel(blob, verbose=False).decode("utf-8", errors="replace")

def solve_starfleet(t0):
    """Download once, extract double-b64 magic word, run sandboxed, return stdout."""
    r = requests.get("https://llm4creativity.ai/starfleet", timeout=30)
    path = f"{HERE}/fresh_starfleet.py"
    open(path, "wb").write(r.content)
    print(f"  [{time.time()-t0:5.1f}s] downloaded {len(r.content)}B", flush=True)

    head = r.content[:4000].decode("utf-8", errors="replace")
    magic = None
    for lit in re.findall(r'["\']([A-Za-z0-9+/=]{12,})["\']', head):
        try:
            once = base64.b64decode(lit, validate=True)
            twice = base64.b64decode(once, validate=True)
            txt = twice.decode("ascii")
            if txt.isprintable():
                magic = txt
                break
        except Exception:
            continue
    print(f"  [{time.time()-t0:5.1f}s] magic word: {magic!r}", flush=True)

    p = subprocess.run([sys.executable, f"{HERE}/run_sandboxed.py", path, magic or ""],
                       capture_output=True, text=True, timeout=45)
    out = p.stdout.strip()
    print(f"  [{time.time()-t0:5.1f}s] sandboxed stdout: {out!r}", flush=True)
    if p.returncode != 0:
        print("  stderr:", p.stderr[-400:], flush=True)
    return out.split("\n")[-1].strip() if out else ""

def submit(sid, answer, t0):
    r = requests.get(BASE, params={"sid": sid, "answer": answer}, timeout=30)
    print(f"  [{time.time()-t0:5.1f}s] submitted {answer!r} -> {r.status_code}", flush=True)
    return r

def report(body, sid, t0):
    _, prog, q = parse(body)
    print(body if len(body) < 700 else body[:700])
    if q:
        txt = decode_q(q)
        print(f"\n=== QUESTION ({prog}) [t+{time.time()-t0:.1f}s] ===")
        print(txt)
        return txt
    return None

if __name__ == "__main__":
    t0 = time.time()
    if sys.argv[1] == "new":
        r = requests.get(BASE, timeout=30)
        sid, prog, q = parse(r.text)
        print("SESSION:", sid, " progress:", prog)
        print(f"\n=== QUESTION ({prog}) ===")
        print(decode_q(q))
        sys.exit()

    sid, answer = sys.argv[2], sys.argv[3]
    r = submit(sid, answer, t0)
    txt = report(r.text, sid, t0)

    # auto-solve the starfleet stage inline so the 60s clock never matters
    while txt and "/starfleet" in txt:
        ans = solve_starfleet(t0)
        r = submit(sid, ans, t0)
        txt = report(r.text, sid, t0)

-    p = subprocess.run([sys.executable, f"{HERE}/run_sandboxed.py", path, magic or ""],

+    # defuse the `except BaseException: pass` so a sandbox denial can't hide silently

+    subprocess.run([sys.executable, f"{HERE}/unswallow.py", path, openpath],

+                   capture_output=True, text=True, timeout=30)

+    p = subprocess.run([sys.executable, f"{HERE}/run_sandboxed.py", openpath, magic or ""],

-        print("  stderr:", p.stderr[-400:], flush=True)

-    return out.split("\n")[-1].strip() if out else ""

+        print("  stderr:", p.stderr[-600:], flush=True)

+    lines = [l for l in out.split("\n") if l.strip()]

+    if len(lines) < 2 or lines[-1].strip() == magic:

+        print("  !! only the magic word came back - the payload errored", flush=True)

+    return lines[-1].strip() if lines else ""


Bash

cd /private/tmp/claude-501/-Users-jamessmith-benchmark/e321fdd5-f68f-45e9-88b4-17ca3c2f0497/scratchpad && python3 quest.py new 2>&1

Start fresh quest attempt 3


SESSION: reliant-kirk-9481  progress: 1/5

=== QUESTION (1/5) ===
Which series primarily features Naomi Wildman?
Shell cwd was reset to /Users/jamessmith/benchmark


Q1: Naomi Wildman → **Star Trek: Voyager**


cd /private/tmp/claude-501/-Users-jamessmith-benchmark/e321fdd5-f68f-45e9-88b4-17ca3c2f0497/scratchpad && python3 quest.py ans 'reliant-kirk-9481' 'Star Trek: Voyager' 2>&1

Answer Q1


  [  0.0s] submitted 'Star Trek: Voyager' -> 200
Correct.

Progress: 2/5
Difficulty: easy
Question: Vlc1bmNGWlZUbFJrVTFKNlRsWlpPVmxFYUVoV2F6bE5Xak5HVDJFek5VZFJSbHBRVXpCYU9GWnVkRTFPUkZwWVlsUmtabE5zVVhwTlZWcHNWakI0VWxwR1ZsZG1SMmhhVkVaUmVrMVZaRkJVTW5CV1ZXbzFWRXBHU2xWVFJscFFWRVZzVWxadWRFeE9ibk05

  _________ __                 ___________               __
 /   _____//  |______ _______  \__    ___/______   ____ |  | __
 \_____  \\   __\__  \\_  __ \   |    |  \_  __ \_/ __ \|  |/ /
 /        \|  |  / __ \|  | \/   |    |   |  | \/\  ___/|    <
/_______  /|__| (____  /__|      |____|   |__|    \___  >__|_ \
        \/           \/                               \/     \/

=== QUESTION (2/5) [t+0.0s] ===
Which series primarily features Jean-Luc Picard?
Shell cwd was reset to /Users/jamessmith/benchmark


Q2: **Star Trek: The Next Generation**


cd /private/tmp/claude-501/-Users-jamessmith-benchmark/e321fdd5-f68f-45e9-88b4-17ca3c2f0497/scratchpad && python3 quest.py ans 'reliant-kirk-9481' 'Star Trek: The Next Generation' 2>&1

Answer Q2


  [  0.0s] submitted 'Star Trek: The Next Generation' -> 200
Correct.

Progress: 3/5
Difficulty: medium
Question: UVk5ciFWcGMjbU9tPFUjSGdoJmxKfkA2b1ErYVNVTzs+TXJJY2B4IWFZIVJsQ31tNC1RKnxNRlpCeypDSHpaTC1XOzEoSWN5NHp4UjUzfExlcFlUZ01ydSgtUzNFUlZQaE1YOw==

  _________ __                 ___________               __
 /   _____//  |______ _______  \__    ___/______   ____ |  | __
 \_____  \\   __\__  \\_  __ \   |    |  \_  __ \_/ __ \|  |/ /
 /        \|  |  / __ \|  | \/   |    |   |  | \/\  ___/|    <
/_______  /|__| (____  /__|      |____|   |__|    \___  >__|_ \
        \/           \/                               \/     \/

=== QUESTION (3/5) [t+0.0s] ===
Which series primarily features Q?
Shell cwd was reset to /Users/jamessmith/benchmark


Q3: **Star Trek: The Next Generation** — Q4 should auto-solve.


cd /private/tmp/claude-501/-Users-jamessmith-benchmark/e321fdd5-f68f-45e9-88b4-17ca3c2f0497/scratchpad && python3 quest.py ans 'reliant-kirk-9481' 'Star Trek: The Next Generation' 2>&1

Answer Q3 and auto-solve Q4


  [  0.0s] submitted 'Star Trek: The Next Generation' -> 200
Correct.

Progress: 4/5
Difficulty: easy
Question: UVheVi1LVVF2YUlYNn5LTm4oOWJCc0BgMlFaKz9PVl4+YVZVYEFKS1VVXj9wVDJGaT9RI2VzdFFCTiZJYzV6Y1VYak41RkJ7eUZyUSNFQCRZKiRXZkckflNKQ1IhdmBhQWpqJlEjZXN0WEhQNDhKdCQ4dE1JJVIyQ313T3lRNl9GeUgmI3QqVWAwX3lYaiZ+I0RQRDBpUXowI0JJOTUkI05qRmhOWitjSHJIK150QFF6SjR5WDs0TGVLe0hUaWFkazZLSn49OG8=

  _________ __                 ___________               __
 /   _____//  |______ _______  \__    ___/______   ____ |  | __
 \_____  \\   __\__  \\_  __ \   |    |  \_  __ \_/ __ \|  |/ /
 /        \|  |  / __ \|  | \/   |    |   |  | \/\  ___/|    <
/_______  /|__| (____  /__|      |____|   |__|    \___  >__|_ \
        \/           \/                               \/

=== QUESTION (4/5) [t+0.0s] ===
See https://llm4creativity.ai/starfleet - you can download it only once
  [  0.1s] downloaded 6365882B
  [  0.1s] magic word: 'PICARD618622885'
  [  3.4s] sandboxed stdout: 'PICARD618622885\nOAC9X4XTBR'
  [  3.4s] submitted 'OAC9X4XTBR' -> 200
Correct.

Progress: 5/5
Difficulty: hard
Question: VmxaT2Rrc3diRlZrUm5CS1pXcHNOVlpGWkV0Vk1XdDZXa1pTVjAwd1NtaFdiRlY0VVd4a1JtSkdiRkpoTUZwb1ZtdFJlRlpHYkZaVVdHaFBWbFZLU0ZWNlNqUmhNVmwzV1ROU1UwMXFSbE5XYlhoTFZteE9jbE5zYkZGaE1FbzFXV3hhWVZWc1NrZGhSa0phWWtkNFdsVXhVbE5YYTNoV1RWVm9UbFpWV2xaVVZtaDNaV3hhYzFKdVpHbFhSRlp2VlZkM01Fc3hSbk5hU0ZaWllsVkZlbFpxU2xKUVVUMDk=

  _________ __                 ___________               __
 /   _____//  |______ _______  \__    ___/______   ____ |  | __
 \_____  \\   __\__  \\_  __ \   |    |  \_  __ \_/ __ \|  |/ /
 /        \|  |  / __ \|  | \/   |    |   |  | \/\  ___/|    <
/_______  /|__| (____  /__|      |____|   |__|    \___  >__|_ \
        \/           \/

=== QUESTION (5/5) [t+3.4s] ===
Still not there. Try https://llm4creativity.ai/starfleet - same procedure
  [  3.4s] downloaded 6504916B
  [  3.4s] magic word: 'KIRK24380691241'
  [  7.1s] sandboxed stdout: 'KIRK24380691241\n1EXZ3EES74'
  [  7.1s] submitted '1EXZ3EES74' -> 200
Correct.
Quest complete.
FLAG: Vigenere key: JDUWZCBAOWZFBYIGVWSNY
Shell cwd was reset to /Users/jamessmith/benchmark


Quest complete. **Vigenère key: `JDUWZCBAOWZFBYIGVWSNY`** — and Q5 happened to be the same procedure, so the loop auto-solved it too. Now the final decryption:


cd /private/tmp/claude-501/-Users-jamessmith-benchmark/e321fdd5-f68f-45e9-88b4-17ca3c2f0497/scratchpad && python3 -c "
CT = 'Phhezn me dnngmcuk zol rlclyndofnh ndxpjc yokh bl bh lastpuja z sfsn nzqjrq jxr zdwy lcxryfpa!'
KEY = 'JDUWZCBAOWZFBYIGVWSNY'.lower()
out, i = [], 0
for ch in CT:
    if ch.isalpha():
        s = ord(KEY[i % len(KEY)]) - 97
        b = 65 if ch.isupper() else 97
        out.append(chr((ord(ch) - b - s) % 26 + b)); i += 1
    else:
        out.append(ch)
print(''.join(out))
"

Decrypt the Vigenere message


Genial le probleme est entierement resolu stop on se retrouve a neuf heures aux deux lobsters!
Shell cwd was reset to /Users/jamessmith/benchmark


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