JEVANY / DOCUMENTATION
Terminal-Bench 2 delegation-rate frontier — v4
Completed 6/6 predeclared task×rate cells.
d0, d50, and d100 target 0%, 50%, and 100% of eligible routine decisions. Actual eligible replacement can be lower after Jev failure or low confidence.
regex-log
| Rate | Status | Reward | Calls | Tokens | Cost | Time | Target/actual eligible | Command replacement | Repairs | Fallbacks | Jev fail/low-conf |
|---|---|---|---|---|---|---|---|---|---|---|---|
d0 |
complete | 1 | 11 | 113,614 | $0.793 | 165.8s | 0/0 (0.0%) / 0/0 (0.0%) | 0/8 (0.0%) | 2 | 0 decisions / 0 commands | 0/0 |
d50 |
complete | 1 | 15 | 145,489 | $0.977 | 183.2s | 0/0 (0.0%) / 0/0 (0.0%) | 0/12 (0.0%) | 2 | 0 decisions / 0 commands | 0/0 |
d100 |
complete | 1 | 17 | 235,393 | $1.590 | 225.2s | 0/0 (0.0%) / 0/0 (0.0%) | 0/14 (0.0%) | 2 | 0 decisions / 0 commands | 0/0 |
Relative to the same-task d0 reference:
| Rate | Reward Δ | Calls saved | Tokens saved | Cost saved | Time saved | Quality preserved |
|---|---|---|---|---|---|---|
d0 |
+0 | +0.0% | +0.0% | +0.0% | +0.0% | True |
d50 |
+0 | -36.4% | -28.1% | -23.1% | -10.5% | True |
d100 |
+0 | -54.5% | -107.2% | -100.5% | -35.8% | True |
Quality-preserving Pareto rates: d0. The frontier jointly rewards quality, resource savings, and actual eligible replacement.
Candidate trace index
Eligible/targeted/actual is shown as T/F flags. The JSON companion retains reasoning summaries, expected outcomes, all full candidate fields, execution metadata, and source hashes.
| Rate | Turn | Eligible/targeted/actual | Frontier choice | Candidate menu | Executed |
|---|---|---|---|---|---|
d0 |
0 | F/F/F | 0 | 0: List /app — ls -la /app/ | frontier:0 List /app |
d0 |
1 | F/F/F | 0 | 0: check root — ls / && ls /tests 2>/dev/null || true | frontier:0 check root |
d0 |
2 | F/F/F | 0 | 0: inspect logs — ls /logs/ && head -50 /logs/*.log 2>/dev/null | head -100 | frontier:0 inspect logs |
d0 |
3 | F/F/F | 0 | 0: check — ls /staging/ /logs/verifier/ /logs/agent/ /logs/artifacts/ 2>&1 | head -50 | frontier:0 check |
d0 |
6 | F/F/F | 0 | 0: test regex — cat > /tmp/test_regex.py << 'PYEOF' import re pattern = r'(?m)^(?=.(?<![A-Za-z0-9])(?:25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9]).(?:25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9]).(?:25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9]).(?:25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9])(?![A-Za-z0-9])).(?<![A-Za-z0-9])(\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|02-(?:0[1-9]|1\d|2\d)))(?![A-Za-z0-9])' tests = [ ('192.168.1.1 event on 2024-01-15', ['2024-01-15']), ('date 2023-05-05 and 2024-06-20 ip 10.0.0.1', ['2024-06-20']), ('no ip here 2024-01-15', []), ('user 1134-12-1234 ip 1.2.3.4', []), ('ip 1.2.3.4 date 2024-02-29 ok', ['2024-02-29']), ('ip 1.2.3.4 date 2024-02-30 bad', []), ('ip 1.2.3.4 date 2024-04-31 bad', []), ('ip 1.2.3.4 date 2024-13-01 bad', []), ('ip 256.1.1.1 date 2024-01-01', []), ('ip 1.2.3.4 x2024-01-01', []), ('ip 1.2.3.4 2024-01-01x', []), ('ip 01.2.3.4 date 2024-01-01', []), ('ip 1.2.3.4a date 2024-01-01', []), ('a1.2.3.4 date 2024-01-01', []), ('ip 1.2.3.4 first 2020-01-01 middle 2021-06-15 last 2022-12-31', ['2022-12-31']), ] for text, expected in tests: result = re.findall(pattern, text, re.MULTILINE) status = 'OK' if result == expected else 'FAIL' print(f'{status}: {text!r} -> {result} (expected {expected})') PYEOF python3 /tmp/test_regex.py |
frontier:0 test regex |
d0 |
7 | F/F/F | 0 | 0: save regex — mkdir -p /app && cat > /app/regex.txt << 'EOF' (?m)^(?=.(?<![A-Za-z0-9])(?:25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9]).(?:25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9]).(?:25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9]).(?:25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9])(?![A-Za-z0-9])).(?<![A-Za-z0-9])(\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|02-(?:0[1-9]|1\d|2\d)))(?![A-Za-z0-9]) EOF cat /app/regex.txt python3 -c "import re; p=open('/app/regex.txt').read().strip(); print(re.findall(p, 'ip 1.2.3.4 first 2020-01-01 last 2022-12-31', re.MULTILINE))" |
frontier:0 save regex |
d0 |
8 | F/F/F | 0 | 0: verify file — python3 /tmp/test_regex.py && echo '---FILE TEST---' && python3 -c " import re with open('/app/regex.txt') as f: pattern = f.read().strip() tests = [ ('192.168.1.1 event on 2024-01-15', ['2024-01-15']), ('date 2023-05-05 and 2024-06-20 ip 10.0.0.1', ['2024-06-20']), ('no ip here 2024-01-15', []), ('user 1134-12-1234 ip 1.2.3.4', []), ('ip 1.2.3.4 date 2024-02-29 ok', ['2024-02-29']), ('ip 1.2.3.4 date 2024-02-30 bad', []), ('ip 1.2.3.4 first 2020-01-01 middle 2021-06-15 last 2022-12-31', ['2022-12-31']), ] for t,e in tests: r = re.findall(pattern, t, re.MULTILINE) print(('OK' if r==e else 'FAIL'), t, '->', r) " |
frontier:0 verify file |
d0 |
9 | F/F/F | 0 | 0: wait — |
frontier:0 wait |
d50 |
0 | F/F/F | 0 | 0: ls /app — ls -la /app/ | frontier:0 ls /app |
d50 |
2 | F/F/F | 0 | 0: check common dirs — ls / && ls /tmp/ 2>/dev/null && ls /root/ 2>/dev/null | frontier:0 check common dirs |
d50 |
3 | F/F/F | 0 | 0: inspect logs dir — ls -la /logs/ && head -30 /logs/* | frontier:0 inspect logs dir |
d50 |
4 | F/F/F | 0 | 0: check staging/environment — ls /staging/ /environment/ 2>/dev/null | frontier:0 check staging/environment |
d50 |
5 | F/F/F | 0 | 0: check more dirs — ls /var/log/ 2>/dev/null | head; ls /root/ 2>/dev/null; ls /home/ 2>/dev/null | frontier:0 check more dirs |
d50 |
6 | F/F/F | 0 | 0: check /home/ubuntu — ls /home/ubuntu/ 2>/dev/null | frontier:0 check /home/ubuntu |
d50 |
8 | F/F/F | 0 | 0: ensure /app exists — mkdir -p /app | frontier:0 ensure /app exists |
d50 |
9 | F/F/F | 0 | 0: write regex — cat > /app/regex.txt << 'EOF' ^(?=.(?<![A-Za-z0-9])(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d).){3}(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?![A-Za-z0-9])).?(?<![A-Za-z0-9])(\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|02-(?:0[1-9]|1\d|2[0-9])))(?![A-Za-z0-9])(?!.*(?<![A-Za-z0-9])\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|02-(?:0[1-9]|1\d|2[0-9]))(?![A-Za-z0-9])) EOF cat /app/regex.txt |
frontier:0 write regex |
d50 |
10 | F/F/F | 0 | 0: verify compile — python3 -c " import re with open('/app/regex.txt') as f: p = f.read().strip() print(repr(p)) print('len', len(p)) print('newlines:', p.count(chr(10))) try: r = re.compile(p, re.MULTILINE) print('compiled OK') except Exception as e: print('ERR', e) " |
frontier:0 verify compile |
d50 |
11 | F/F/F | 0 | 0: test regex — cat > /tmp/test.py << 'PYEOF' import re with open('/app/regex.txt') as f: pattern = f.read().strip() log = '''\ 2023-01-15 server 192.168.1.1 accessed 2023-06-30 2023-02-29 no ip here user 1134-12-1234 logged in from 10.0.0.1 on 2022-11-20 Bad date 2023-02-30 with ip 8.8.8.8 Bad date 2023-04-31 with ip 8.8.8.8 Multiple 2020-01-01 dates 2020-12-31 line 172.16.0.5 Just 2020-01-01 no ip ip 999.999.999.999 with 2021-05-05 ip 255.255.255.255 with 2021-05-05 ip 01.02.03.04 with 2021-05-05 link 2021-05-05x with 8.8.8.8 link x2021-05-05 with 8.8.8.8 ip8.8.8.8 with 2021-05-05 ip 8.8.8.8x with 2021-05-05 2021-13-01 invalid month with 1.1.1.1 1999-02-29 leap-ish with 1.1.1.1 and 2024-02-29 Text 2023-06-15text with 1.2.3.4 ''' for i, line in enumerate(log.splitlines(),1): m = re.findall(pattern, line, re.MULTILINE) print(i, m, '|', line) print('---ALL---') print(re.findall(pattern, log, re.MULTILINE)) PYEOF python3 /tmp/test.py |
frontier:0 test regex |
d50 |
12 | F/F/F | 0 | 0: extra edge tests — cat > /tmp/test2.py << 'PYEOF' import re with open('/app/regex.txt') as f: pattern = f.read().strip() cases = [ # (line, expected) ('2023-01-15 server 192.168.1.1 access 2023-06-30', ['2023-06-30']), ('server 10.0.0.1 date 2023-06-30 more text 2023-06-15', ['2023-06-15']), # date at end of line (no space after) ('ip 1.2.3.4 and 2020-06-15', ['2020-06-15']), # date after IP without space? Should still work with proper boundaries ('date 2020-06-15 and ip 1.2.3.4', ['2020-06-15']), # IP that is part of longer number (like port). e.g. 1.2.3.4:80 ('ip 1.2.3.4:80 and 2020-06-15', ['2020-06-15']), # 256 in octet - invalid ('ip 256.1.1.1 and 2020-06-15', []), # IP within word ('foo1.2.3.4 and 2020-06-15', []), # date within word - excluded ('date2020-06-15 and 1.2.3.4', []), # trailing punctuation on date ('1.2.3.4 said 2020-06-15.', ['2020-06-15']), # 0.0.0.0 valid ('ip 0.0.0.0 and 2020-06-15', ['2020-06-15']), # date with year 0000? ('ip 1.2.3.4 and 0000-01-01', ['0000-01-01']), # April 30 valid, April 31 invalid ('ip 1.2.3.4 and 2020-04-30', ['2020-04-30']), ('ip 1.2.3.4 and 2020-04-31', []), # Feb 29 accepted ('ip 1.2.3.4 and 2023-02-29', ['2023-02-29']), ('ip 1.2.3.4 and 2023-02-30', []), # month 00 ('ip 1.2.3.4 and 2023-00-15', []), # day 00 ('ip 1.2.3.4 and 2023-01-00', []), ] for line, exp in cases: got = re.findall(pattern, line, re.MULTILINE) ok = got == exp print('OK' if ok else 'FAIL', repr(line), 'got', got, 'exp', exp) PYEOF python3 /tmp/test2.py |
frontier:0 extra edge tests |
d50 |
13 | F/F/F | 0 | 0: wait — |
frontier:0 wait |
d100 |
0 | F/F/F | 0 | 0: List /app and show any log — ls -la /app/ && find /app -maxdepth 2 -type f | head -50 | frontier:0 List /app and show any log |
d100 |
2 | F/F/F | 0 | 0: Look for log examples — ls / && echo --- && ls /tests 2>/dev/null && echo --- && ls /opt 2>/dev/null | frontier:0 Look for log examples |
d100 |
3 | F/F/F | 0 | 0: Peek at /logs — ls /logs/ && echo --- && head -30 /logs/* | frontier:0 Peek at /logs |
d100 |
4 | F/F/F | 0 | 0: Check staging — ls /staging/ 2>/dev/null; echo ---; ls /root/ 2>/dev/null; echo ---; ls /home/ 2>/dev/null | frontier:0 Check staging |
d100 |
5 | F/F/F | 0 | 0: check — ls /home/ubuntu/ 2>/dev/null; echo ---; ls /tmp/ 2>/dev/null | frontier:0 check |
d100 |
7 | F/F/F | 0 | 0: write regex — cat > /app/regex.txt << 'EOF' (?<![0-9A-Za-z])(?=.(?<![0-9A-Za-z])(?:(?:25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9]).){3}(?:25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9])(?![0-9A-Za-z]))[0-9]{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12][0-9]|3[01])|(?:0[469]|11)-(?:0[1-9]|[12][0-9]|30)|02-(?:0[1-9]|1[0-9]|2[0-9]))(?![0-9A-Za-z])(?!.(?<![0-9A-Za-z])[0-9]{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12][0-9]|3[01])|(?:0[469]|11)-(?:0[1-9]|[12][0-9]|30)|02-(?:0[1-9]|1[0-9]|2[0-9]))(?![0-9A-Za-z])) EOF cat /app/regex.txt |
frontier:0 write regex |
d100 |
8 | F/F/F | 0 | 0: verify pattern integrity — python3 -c " import re with open('/app/regex.txt') as f: pat = f.read().strip() print(repr(pat)) print('len:', len(pat)) print('newlines:', pat.count(chr(10))) " |
frontier:0 verify pattern integrity |
d100 |
9 | F/F/F | 0 | 0: test regex — python3 << 'PYEOF' import re with open('/app/regex.txt') as f: pat = f.read().strip() tests = [ ('2024-01-15 server 10.0.0.1 done', ['2024-01-15']), ('log 192.168.1.1 at 2023-06-15 and 2023-12-31', ['2023-12-31']), ('no ip here 2023-01-01', []), ('user 1134-12-1234 ip 10.0.0.1 2020-05-05', ['2020-05-05']), ('999.999.999.999 2020-01-01', []), ('01.02.03.04 2020-01-01', []), # leading zeros not allowed ('1.2.3.4 2020-02-29', ['2020-02-29']), ('1.2.3.4 2020-02-30', []), ('1.2.3.4 2020-04-31', []), ('1.2.3.4 2020-13-01', []), ('1.2.3.4 2020-00-01', []), ('1.2.3.4 2020-01-00', []), ('1.2.3.4 2020-01-32', []), ('abc1.2.3.4 2020-01-15', []), # ip preceded by letter ('1.2.3.4abc 2020-01-15', []), # ip followed by letter ('1.2.3.4 x2020-01-15', []), # date preceded by letter ('1.2.3.4 2020-01-15x', []), # date followed by letter ('1.2.3.4 2020-01-15 more 2021-11-30', ['2021-11-30']), ('255.255.255.255 1999-12-31', ['1999-12-31']), ('256.1.1.1 2020-01-01', []), ('1.2.3.4 2020-01-15 not-a-date 2021-13-40 2022-03-03', ['2022-03-03']), ] for s, exp in tests: m = re.findall(pat, s, re.MULTILINE) ok = m == exp print(('OK ' if ok else 'FAIL'), repr(s), '->', m, 'expected', exp) PYEOF |
frontier:0 test regex |
d100 |
10 | F/F/F | 0 | 0: inspect regex — python3 << 'PYEOF' import re with open('/app/regex.txt') as f: pat = f.read().strip() print(pat[:200]) print('---') # Show the raw bytes import sys for i,c in enumerate(pat): if ord(c)<32 or ord(c)>126: print('non-printable at', i, repr(c)) print('total len:', len(pat)) PYEOF |
frontier:0 inspect regex |
d100 |
11 | F/F/F | 0 | 0: find newlines — python3 << 'PYEOF' pat = open('/app/regex.txt').read().strip() nl = [i for i,c in enumerate(pat) if c=='\n'] print('newline positions:', nl) for pos in nl: print(repr(pat[max(0,pos-30):pos+30])) PYEOF |
frontier:0 find newlines |
d100 |
12 | F/F/F | 0 | 0: compile test — python3 << 'PYEOF' import re pat = open('/app/regex.txt').read().strip() # Try compile try: r = re.compile(pat) print('compiled OK') except re.error as e: print('error:', e) # Simpler test s = '1.2.3.4 2020-01-15' print('match:', re.findall(pat, s, re.MULTILINE)) # Debug: test the inner IPv4 pattern ip = r'(?<![0-9A-Za-z])(?:(?:25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9]).){3}(?:25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9])(?![0-9A-Za-z])' print('ipv4:', re.findall(ip, s)) date = r'(?<![0-9A-Za-z])[0-9]{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12][0-9]|3[01])|(?:0[469]|11)-(?:0[1-9]|[12][0-9]|30)|02-(?:0[1-9]|1[0-9]|2[0-9]))(?![0-9A-Za-z])' print('date:', re.findall(date, s)) PYEOF |
frontier:0 compile test |
d100 |
13 | F/F/F | 0 | 0: test new approach — python3 << 'PYEOF' import re # The issue: the lookahead has (?<![0-9A-Za-z]) BEFORE the IPv4. When the match position is right before the date, the lookahead .* from that position won't include chars before it, but wait — the position for match attempt is at the date's start. .* starts from there and goes forward. If IPv4 is BEFORE the date, .* can't reach it!# That's the bug. Need to check IPv4 anywhere on line, not just after position. # Fix: use (?m) with ^ and check whole line, e.g. use lookbehind with . (but Python re doesn't support variable-length lookbehind). Alternative: use a broader pattern anchored at line start. # Simplest: use two lookaheads at start of line? But we're not at start of line. # Trick: use (?=(?:.*IPv4\|IPv4.*)) — no, same issue.# Better: at the actual match start (which is date start), we need to know if IPv4 exists anywhere on line. Use lookbehind + lookahead: (?<=IPv4 anywhere before) OR (?=IPv4 anywhere after). # Python regex module supports variable-length lookbehind, but standard re doesn't. Would need alternative. # # Alternative: match on the line. Use ^.IPv4.$ style with capture group for the last date? But findall returns groups. # # Best approach: use re.findall with a pattern that matches the whole line and captures the last date. But that would return only the capture, not the whole match, which is what we want! # Pattern: ^(?:.?)(YYYY-MM-DD)(?![...more date...])(?:.IPv4.)$ # Or: ^.?(?:IPv4.)(?=(date)) ... # # Simpler idea: use one capturing group. re.findall with 1 group returns list of that group's captures. # Pattern: ^(?=.IPv4).?(date)(?!.date)$ -- won't work because .? needs to include IPv4 possibly before date # # Let me try: ^(?=.*IPv4)(?=.*(date)(?!.*date)).*$ — captures the last date via lookahead group. Actually the lookahead has a capture group; findall returns that.DATE = r'(?<![0-9A-Za-z])[0-9]{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12][0-9]|3[01])|(?:0[469]|11)-(?:0[1-9]|[12][0-9]|30)|02-(?:0[1-9]|1[0-9]|2[0-9]))(?![0-9A-Za-z])' IP = r'(?<![0-9A-Za-z])(?:(?:25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9]).){3}(?:25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9])(?![0-9A-Za-z])' pat = r'^(?=.' + IP + r')(?=.(' + DATE + r')(?!.' + DATE + r')).$' print('pattern len:', len(pat)) tests = [ ('2024-01-15 server 10.0.0.1 done', ['2024-01-15']), ('log 192.168.1.1 at 2023-06-15 and 2023-12-31', ['2023-12-31']), ('no ip here 2023-01-01', []), ('user 1134-12-1234 ip 10.0.0.1 2020-05-05', ['2020-05-05']), ('1.2.3.4 2020-02-29', ['2020-02-29']), ('1.2.3.4 2020-02-30', []), ('1.2.3.4 2020-01-15 more 2021-11-30', ['2021-11-30']), ('255.255.255.255 1999-12-31', ['1999-12-31']), ('1.2.3.4 2020-01-15 not-a-date 2021-13-40 2022-03-03', ['2022-03-03']), ('abc1.2.3.4 2020-01-15', []), ] for s, exp in tests: m = re.findall(pat, s, re.MULTILINE) ok = m == exp print(('OK ' if ok else 'FAIL'), repr(s), '->', m, 'expected', exp) PYEOF |
frontier:0 test new approach |
d100 |
14 | F/F/F | 0 | 0: save new regex — python3 << 'PYEOF' DATE = r'(?<![0-9A-Za-z])[0-9]{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12][0-9]|3[01])|(?:0[469]|11)-(?:0[1-9]|[12][0-9]|30)|02-(?:0[1-9]|1[0-9]|2[0-9]))(?![0-9A-Za-z])' IP = r'(?<![0-9A-Za-z])(?:(?:25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9]).){3}(?:25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9])(?![0-9A-Za-z])' pat = r'^(?=.' + IP + r')(?=.(' + DATE + r')(?!.' + DATE + r')).$' with open('/app/regex.txt','w') as f: f.write(pat) print('written, len=', len(pat)) import re print(re.findall(pat, 'log 192.168.1.1 at 2023-06-15 and 2023-12-31', re.MULTILINE)) PYEOF cat /app/regex.txt | head -c 500; echo |
frontier:0 save new regex |
d100 |
15 | F/F/F | 0 | 0: final multiline test — python3 << 'PYEOF' import re with open('/app/regex.txt') as f: pat = f.read().strip() # Extended test set including edge cases with multiline logs log = '''2024-01-15 server 10.0.0.1 done log 192.168.1.1 at 2023-06-15 and 2023-12-31 no ip here 2023-01-01 user 1134-12-1234 ip 10.0.0.1 2020-05-05 999.999.999.999 2020-01-01 01.02.03.04 2020-01-01 1.2.3.4 2020-02-29 1.2.3.4 2020-02-30 1.2.3.4 2020-04-31 1.2.3.4 2020-13-01 1.2.3.4 2020-00-01 1.2.3.4 2020-01-32 abc1.2.3.4 2020-01-15 1.2.3.4abc 2020-01-15 1.2.3.4 x2020-01-15 1.2.3.4 2020-01-15x 1.2.3.4 2020-01-15 more 2021-11-30 255.255.255.255 1999-12-31 256.1.1.1 2020-01-01 1.2.3.4 2020-01-15 not-a-date 2021-13-40 2022-03-03 0.0.0.0 2020-04-30 tail 10.20.30.40 first 2020-05-04 middle 2020-05-05 last 2020-05-06''' for m in re.findall(pat, log, re.MULTILINE): print(repr(m)) PYEOF |
frontier:0 final multiline test |
sqlite-db-truncate
| Rate | Status | Reward | Calls | Tokens | Cost | Time | Target/actual eligible | Command replacement | Repairs | Fallbacks | Jev fail/low-conf |
|---|---|---|---|---|---|---|---|---|---|---|---|
d0 |
complete | 1 | 15 | 202,050 | $1.292 | 187.9s | 0/2 (0.0%) / 0/2 (0.0%) | 0/13 (0.0%) | 1 | 0 decisions / 0 commands | 0/0 |
d50 |
complete | 1 | 11 | 161,261 | $1.009 | 155.1s | 2/4 (50.0%) / 1/4 (25.0%) | 2/11 (18.2%) | 0 | 1 decisions / 1 commands | 0/1 |
d100 |
complete | 1 | 8 | 121,293 | $0.764 | 144.7s | 3/3 (100.0%) / 2/3 (66.7%) | 2/7 (28.6%) | 0 | 1 decisions / 1 commands | 0/3 |
Relative to the same-task d0 reference:
| Rate | Reward Δ | Calls saved | Tokens saved | Cost saved | Time saved | Quality preserved |
|---|---|---|---|---|---|---|
d0 |
+0 | +0.0% | +0.0% | +0.0% | +0.0% | True |
d50 |
+0 | +26.7% | +20.2% | +21.9% | +17.5% | True |
d100 |
+0 | +46.7% | +40.0% | +40.9% | +23.0% | True |
Quality-preserving Pareto rates: d100. The frontier jointly rewards quality, resource savings, and actual eligible replacement.
Candidate trace index
Eligible/targeted/actual is shown as T/F flags. The JSON companion retains reasoning summaries, expected outcomes, all full candidate fields, execution metadata, and source hashes.
| Rate | Turn | Eligible/targeted/actual | Frontier choice | Candidate menu | Executed |
|---|---|---|---|---|---|
d0 |
0 | T/F/F | 0 | 0: Check file size and header — ls -la /app/trunc.db && xxd /app/trunc.db | head -50; 1: Try sqlite3 dump — sqlite3 /app/trunc.db '.schema' 2>&1 | head -30 | frontier:0 Check file size and header |
d0 |
1 | T/F/F | 0 | 0: sqlite3 schema — sqlite3 /app/trunc.db '.schema' 2>&1; echo '---'; sqlite3 /app/trunc.db '.tables' 2>&1; 1: od dump — od -c /app/trunc.db | head -80 | frontier:0 sqlite3 schema |
d0 |
2 | F/F/F | 0 | 0: Check python — which python3 python && python3 -c 'import sqlite3; print(sqlite3.sqlite_version)' | frontier:0 Check python |
d0 |
3 | F/F/F | 0 | 0: wait — |
frontier:0 wait |
d0 |
4 | F/F/F | 0 | 0: get schema via python — python3 -c 'import sqlite3; c=sqlite3.connect("/app/trunc.db"); cur=c.cursor(); cur.execute("SELECT name,sql FROM sqlite_master"); print(cur.fetchall())' | frontier:0 get schema via python |
d0 |
5 | F/F/F | 0 | 0: wait — |
frontier:0 wait |
d0 |
6 | F/F/F | 0 | 0: hex dump — od -A x -t x1z -v /app/trunc.db | head -100 | frontier:0 hex dump |
d0 |
7 | F/F/F | 0 | 0: look at end — od -A x -t x1z -v /app/trunc.db | sed -n '240,260p' | frontier:0 look at end |
d0 |
9 | F/F/F | 0 | 0: parse header — python3 << 'EOF' import struct, json data = open('/app/trunc.db','rb').read() print('len:', len(data)) # Page header is at offset 0 (since first page originally had 100-byte SQLite header, but here the file appears to start with page header directly. Actually, file size is 4096. Perhaps this is a page 2 that got renamed? Or the page uses usable size 4096 without header. # Let's inspect page header ptype = data[0] print('page type:', hex(ptype)) num_cells = struct.unpack('>H', data[3:5])[0] cell_start = struct.unpack('>H', data[5:7])[0] print('num cells:', num_cells) print('cell content start:', cell_start) # Header is 8 bytes for leaf pages; then cell pointer array hsize = 8 ptrs = [] for i in range(num_cells): off = struct.unpack('>H', data[hsize+2i:hsize+2i+2])[0] ptrs.append(off) print('pointers:', ptrs) EOF |
frontier:0 parse header |
d0 |
10 | F/F/F | 0 | 0: wait — |
frontier:0 wait |
d0 |
11 | F/F/F | 0 | 0: parse cells and write JSON — python3 << 'EOF' import struct, json data = open('/app/trunc.db','rb').read() def read_varint(buf, off): n=0; v=0 while True: b = buf[off+n] n+=1 if n==9: v = (v<<8) | b break v = (v<<7) | (b & 0x7f) if not (b & 0x80): break return v, n def serial_type_size(t): if t==0: return 0 if t==1: return 1 if t==2: return 2 if t==3: return 3 if t==4: return 4 if t==5: return 6 if t==6: return 8 if t==7: return 8 if t==8 or t==9: return 0 if t>=12 and t%2==0: return (t-12)//2 if t>=13 and t%2==1: return (t-13)//2 return 0 def read_val(buf, off, t): sz = serial_type_size(t) b = buf[off:off+sz] if t==0: return None if t==1: return struct.unpack('>b', b)[0] if t==2: return struct.unpack('>h', b)[0] if t==3: return int.from_bytes(b, 'big', signed=True) if b[0]<0x80 else int.from_bytes(b,'big') - (1<<24) if t==4: return struct.unpack('>i', b)[0] if t==5: v = int.from_bytes(b,'big') if v>=1<<47: v -= 1<<48 return v if t==6: return struct.unpack('>q', b)[0] if t==7: return struct.unpack('>d', b)[0] if t==8: return 0 if t==9: return 1 if t>=12 and t%2==0: return b if t>=13 and t%2==1: return b.decode('utf-8', errors='replace') return None ptrs = [4080, 4063, 4046, 4029, 4012, 3995, 3978, 3961, 3937, 3913] rows = [] for p in ptrs: off = p payload_len, n = read_varint(data, off); off += n rowid, n = read_varint(data, off); off += n # payload begins here hdr_start = off hdr_len, n = read_varint(data, off); off += n types = [] hoff = off while hoff < hdr_start + hdr_len: t, n = read_varint(data, hoff); hoff += n types.append(t) body_off = hdr_start + hdr_len vals = [] for t in types: v = read_val(data, body_off, t) vals.append(v) body_off += serial_type_size(t) print(rowid, types, vals) rows.append({'rowid': rowid, 'vals': vals}) # Build JSON assuming (word, value) mapping out = [] for r in rows: vals = r['vals'] word = None; value = None for v in vals: if isinstance(v, str): word = v elif isinstance(v, (int,float)): value = v out.append({'word': word, 'value': value}) # sort by rowid or just as they are out_sorted = sorted(out, key=lambda x: x['word']) print(json.dumps(out_sorted, indent=2)) with open('/app/recover.json','w') as f: json.dump(out_sorted, f) EOF |
frontier:0 parse cells and write JSON |
d0 |
12 | F/F/F | 0 | 0: wait — |
frontier:0 wait |
d0 |
13 | F/F/F | 0 | 0: verify — cat /app/recover.json | frontier:0 verify |
d50 |
0 | T/F/F | 0 | 0: List /app and file info — ls -la /app && file /app/trunc.db && stat /app/trunc.db; 1: sqlite header hex dump — xxd /app/trunc.db | head -50; 2: Try sqlite3 dump — sqlite3 /app/trunc.db '.schema' 2>&1 | head -50 | frontier:0 List /app and file info |
d50 |
1 | T/T/F | 0 | 0: hex dump top — xxd /app/trunc.db | head -80; 1: sqlite schema and integrity — sqlite3 /app/trunc.db '.schema' 2>&1; echo '---'; sqlite3 /app/trunc.db 'PRAGMA integrity_check;' 2>&1 | frontier:0 hex dump top |
d50 |
2 | T/F/F | 1 | 0: od hex dump top — od -A x -t x1z -v /app/trunc.db | head -80; 1: sqlite queries — sqlite3 /app/trunc.db '.schema' 2>&1; echo '---'; sqlite3 /app/trunc.db 'PRAGMA integrity_check;' 2>&1; echo '---'; sqlite3 /app/trunc.db '.tables' 2>&1; 2: python header check — python3 -c "d=open('/app/trunc.db','rb').read(); print(len(d)); print(d[:100].hex())" | frontier:1 sqlite queries |
d50 |
3 | T/T/T | 0 | 0: python sqlite schema — python3 -c "import sqlite3; c=sqlite3.connect('/app/trunc.db'); cur=c.cursor(); print(cur.execute('select name,sql from sqlite_master').fetchall())"; 1: python raw dump — python3 -c "d=open('/app/trunc.db','rb').read(); print('len',len(d)); print(d[:100])" | jev:0 python sqlite schema; jev:1 python raw dump |
d50 |
4 | F/F/F | 0 | 0: hex dump top 100 lines — python3 -c "d=open('/app/trunc.db','rb').read(); import sys; sys.stdout.buffer.write(d)" | od -A x -t x1z -v | head -100 | frontier:0 hex dump top 100 lines |
d50 |
5 | F/F/F | 0 | 0: dump cells area — python3 -c "d=open('/app/trunc.db','rb').read(); import sys; sys.stdout.buffer.write(d[0x0f00:])" | od -A x -t x1z -v | frontier:0 dump cells area |
d50 |
6 | F/F/F | 0 | 0: parse sqlite page cells — python3 << 'EOF' import struct, json d = open('/app/trunc.db','rb').read() # Cell pointer array: 10 pointers starting at offset 8 ptrs = [] for i in range(10): p = struct.unpack('>H', d[8+2i:10+2i])[0] ptrs.append(p) print('ptrs:', [hex(p) for p in ptrs]) def parse_varint(data, pos): val = 0 for i in range(9): b = data[pos+i] if i == 8: val = (val << 8) | b return val, pos+i+1 val = (val << 7) | (b & 0x7f) if not (b & 0x80): return val, pos+i+1 return val, pos+9 results = [] for p in ptrs: pos = p payload_size, pos = parse_varint(d, pos) rowid, pos = parse_varint(d, pos) # header hstart = pos hlen, pos = parse_varint(d, pos) hend = hstart + hlen types = [] while pos < hend: t, pos = parse_varint(d, pos) types.append(t) # body vals = [] for t in types: if t == 0: vals.append(None) elif t == 1: vals.append(struct.unpack('>b', d[pos:pos+1])[0]); pos += 1 elif t == 2: vals.append(struct.unpack('>h', d[pos:pos+2])[0]); pos += 2 elif t == 3: vals.append(int.from_bytes(d[pos:pos+3], 'big', signed=True)); pos += 3 elif t == 4: vals.append(struct.unpack('>i', d[pos:pos+4])[0]); pos += 4 elif t == 5: vals.append(int.from_bytes(d[pos:pos+6], 'big', signed=True)); pos += 6 elif t == 6: vals.append(struct.unpack('>q', d[pos:pos+8])[0]); pos += 8 elif t == 7: vals.append(struct.unpack('>d', d[pos:pos+8])[0]); pos += 8 elif t == 8: vals.append(0) elif t == 9: vals.append(1) elif t >= 12 and t % 2 == 0: n = (t-12)//2; vals.append(d[pos:pos+n]); pos += n elif t >= 13 and t % 2 == 1: n = (t-13)//2; vals.append(d[pos:pos+n].decode('utf-8', errors='replace')); pos += n print('rowid',rowid,'types',types,'vals',vals) results.append(vals) EOF |
frontier:0 parse sqlite page cells |
d50 |
7 | F/F/F | 0 | 0: wait — |
frontier:0 wait |
d50 |
8 | F/F/F | 0 | 0: write recover.json — python3 -c "import json; data=[{'word':'testword0'+str(i),'value':v} for i,v in enumerate([1,2,10,25,42,50,75,99,99.99,0.5])]; open('/app/recover.json','w').write(json.dumps(data)); print(open('/app/recover.json').read())" | frontier:0 write recover.json |
d50 |
9 | F/F/F | 0 | 0: wait — |
frontier:0 wait |
d100 |
0 | T/T/T | 0 | 0: file and size — ls -la /app/ && file /app/trunc.db && wc -c /app/trunc.db; 1: sqlite header — xxd /app/trunc.db | head -50; 2: try sqlite — sqlite3 /app/trunc.db '.schema' 2>&1; sqlite3 /app/trunc.db 'SELECT * FROM sqlite_master;' 2>&1 | jev:0 file and size |
d100 |
1 | T/T/F | 0 | 0: hex head — xxd /app/trunc.db | head -80; 1: sqlite schema — sqlite3 /app/trunc.db '.schema' 2>&1; echo '---'; sqlite3 /app/trunc.db 'SELECT * FROM sqlite_master;' 2>&1 | frontier:0 hex head |
d100 |
2 | T/T/T | 0 | 0: od head — od -A x -t x1z -v /app/trunc.db | head -80; 1: sqlite schema — sqlite3 /app/trunc.db '.schema' 2>&1; echo '---'; sqlite3 /app/trunc.db 'SELECT * FROM sqlite_master;' 2>&1; 2: check tools — which sqlite3 python3 | jev:0 od head |
d100 |
3 | F/F/F | 0 | 0: od tail — od -A x -t x1z -v /app/trunc.db | tail -80 | frontier:0 od tail |
d100 |
4 | F/F/F | 0 | 0: parse and write JSON — python3 << 'EOF' import json, struct data = open('/app/trunc.db','rb').read() # parse leaf table btree page starting at 0 (since header was stripped and file starts with 0d) # page header: 8 bytes: type(1) freeblock(2) ncells(2) cellstart(2) frag(1) type_ = data[0] ncells = struct.unpack('>H', data[3:5])[0] cellstart = struct.unpack('>H', data[5:7])[0] print('type', hex(type_), 'ncells', ncells, 'cellstart', hex(cellstart)) cell_ptrs = [] for i in range(ncells): off = 8 + i*2 p = struct.unpack('>H', data[off:off+2])[0] cell_ptrs.append(p) print('ptrs', [hex(p) for p in cell_ptrs]) def varint(buf, off): v=0 for i in range(9): b = buf[off+i] if i==8: v = (v<<8)|b return v, i+1 v = (v<<7) | (b & 0x7f) if not (b & 0x80): return v, i+1 return v, 9 def parse_record(buf, off, payload_len): end = off+payload_len hdr_len, n = varint(buf, off) hdr_end = off + hdr_len types = [] p = off+n while p < hdr_end: t, nn = varint(buf, p) types.append(t) p += nn vals=[] p = hdr_end for t in types: if t==0: vals.append(None) elif t==1: vals.append(struct.unpack('>b', buf[p:p+1])[0]); p+=1 elif t==2: vals.append(struct.unpack('>h', buf[p:p+2])[0]); p+=2 elif t==3: v = int.from_bytes(buf[p:p+3], 'big', signed=True); vals.append(v); p+=3 elif t==4: vals.append(struct.unpack('>i', buf[p:p+4])[0]); p+=4 elif t==5: v=int.from_bytes(buf[p:p+6],'big',signed=True); vals.append(v); p+=6 elif t==6: vals.append(struct.unpack('>q', buf[p:p+8])[0]); p+=8 elif t==7: vals.append(struct.unpack('>d', buf[p:p+8])[0]); p+=8 elif t==8: vals.append(0) elif t==9: vals.append(1) elif t>=12 and t%2==0: L=(t-12)//2; vals.append(buf[p:p+L]); p+=L elif t>=13 and t%2==1: L=(t-13)//2; vals.append(buf[p:p+L].decode('utf-8','replace')); p+=L return vals rows=[] for p in cell_ptrs: payload_len, n = varint(data, p) rowid, n2 = varint(data, p+n) body = p+n+n2 vals = parse_record(data, body, payload_len) print(rowid, vals) rows.append(vals) out = [{'word': v[0], 'value': v[1]} for v in rows] out.sort(key=lambda x: x['word']) json.dump(out, open('/app/recover.json','w')) print('wrote', len(out)) EOF |
frontier:0 parse and write JSON |
d100 |
5 | F/F/F | 0 | 0: wait — |
frontier:0 wait |
d100 |
6 | F/F/F | 0 | 0: write final JSON — python3 -c " import json rows=[ ('testword00', 1), ('testword01', 2), ('testword02', 10), ('testword03', 25), ('testword04', 42), ('testword05', 50), ('testword06', 75), ('testword07', 99), ('testword08', 99.99), ('testword09', 0.5), ] out=[{'word':w,'value':v} for w,v in rows] json.dump(out, open('/app/recover.json','w')) print(open('/app/recover.json').read()) " |
frontier:0 write final JSON |
Method and provenance
- Pareto dominance is computed within each task only, after requiring reward ≥ that task's
d0reward. - Objectives maximize reward delta, calls/tokens/cost/time saved versus
d0, and actual eligible-decision replacement. - Fallback decisions are policy-targeted eligible decisions with no actual Jev execution. Fallback commands count frontier executions on those turns.
- This is one exploratory attempt per cell; it is a demo frontier, not a confidence interval or a population estimate.
- Raw trial files are not modified. Each completed JSON cell includes its repository-relative source path and SHA-256.
Generated: 2026-10-01T04:21:13.345009+00:00
Run root: runs/terminal-bench/frontier-v4