GPT-6.1 Sol (effort default (no reasoning-effort override) · thinking on) on Which tunnel peer gets this packet? Parse a VPN peer config, longest-prefix routing, ownership moves and findings

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{"type": "item.completed", "item": {"id": "item_0", "type": "agent_message", "text": "I\u2019ll inspect the draft and sample config, rewrite the parser and routing lookup, then verify correctness and speed.\n"}}
{"type": "item.started", "item": {"id": "item_1", "type": "command_execution", "command": "/bin/bash -lc \"pwd && rg --files -g 'AGENTS.md' -g 'wgroute.py' -g 'home.conf' -g '*test*'\"", "aggregated_output": "", "exit_code": null, "status": "in_progress"}}
{"type": "item.completed", "item": {"id": "item_1", "type": "command_execution", "command": "/bin/bash -lc \"pwd && rg --files -g 'AGENTS.md' -g 'wgroute.py' -g 'home.conf' -g '*test*'\"", "aggregated_output": "/home/bob/usecase-runs/batch/out/gpt-6.1-sol/193_i02/work\nwgroute.py\nhome.conf\n", "exit_code": 0, "status": "completed"}}
{"type": "item.started", "item": {"id": "item_2", "type": "command_execution", "command": "/bin/bash -lc 'cat wgroute.py home.conf'", "aggregated_output": "", "exit_code": null, "status": "in_progress"}}
{"type": "item.completed", "item": {"id": "item_2", "type": "command_execution", "command": "/bin/bash -lc 'cat wgroute.py home.conf'", "aggregated_output": "\"\"\"Which tunnel peer gets a packet? Reads a WireGuard-style config. Spec: TASK.md. First draft, known to be wrong.\"\"\"\nimport ipaddress\nclass WGConfig:\n    def __init__(self, text):\n        self.findings = []; self.p = {}; key = None\n        for line in text.splitlines():\n            line = line.strip()\n            if line.startswith(\"PublicKey\"): key = line.split(\"=\")[1].strip(); self.p[key] = []\n            elif line.startswith(\"AllowedIPs\") and key:\n                self.p[key] += [ipaddress.ip_network(x.strip()) for x in line.split(\"=\")[1].split(\",\")]\n    def peers(self): return {k: [str(n) for n in v] for k, v in self.p.items()}\n    def route(self, ip):\n        a = ipaddress.ip_address(ip)\n        for k, nets in self.p.items():\n            if any(a in n for n in nets): return k\n        return None\n[Interface]\nPrivateKey = (redacted)\nAddress = [REDACTED:ipv4]/24, fd42::1/64\nListenPort = 51820\n\n# laptop\n[Peer]\nPublicKey = LAPTOPkey=\nAllowedIPs = [REDACTED:ipv4]/32, fd42::2/128\n\n[peer]   # phone (lowercase header is fine)\npublickey=PHONEkey=\nallowedips = [REDACTED:ipv4], fd42::3\nAllowedIPs = [REDACTED:ipv4]/32   # phone took the laptop's address -> moved\n\n[Peer]\nPublicKey = NASkey=\nAllowedIPs = [REDACTED:ipv4]/24, [REDACTED:ipv4]/24, bogus/99,\nAllowedIPs = [REDACTED:ipv4]/0\n", "exit_code": 0, "status": "completed"}}
{"type": "item.started", "item": {"id": "item_3", "type": "command_execution", "command": "/bin/bash -lc 'ls -la && cat TASK.md'", "aggregated_output": "", "exit_code": null, "status": "in_progress"}}
{"type": "item.completed", "item": {"id": "item_3", "type": "command_execution", "command": "/bin/bash -lc 'ls -la && cat TASK.md'", "aggregated_output": "total 20\ndrwxr-xr-x 6 bob bob 4096 Oct 22 11:53 .\ndrwxrwxr-x 3 bob bob 4096 Oct 22 11:53 ..\ndr-xr-xr-x 2 bob bob   40 Oct 22 11:53 .agents\ndr-xr-xr-x 2 bob bob   40 Oct 22 11:53 .aws\ndr-xr-xr-x 2 bob bob   40 Oct 22 11:53 .codex\ndr-xr-xr-x 2 bob bob   40 Oct 22 11:53 .git\n-rw-r--r-- 1 bob bob 3522 Oct 22 10:08 TASK.md\n-rw-r--r-- 1 bob bob  440 Oct 22 10:08 home.conf\n-rw-r--r-- 1 bob bob  812 Oct 22 10:08 wgroute.py\n# Which tunnel peer gets this packet?\n\nOur home-lab VPN box uses WireGuard-style configs (sample: `home.conf`). `wgroute.py` is meant to answer \"which peer would a packet to IP X be sent to?\" and to list config problems, but the draft is wrong in many ways. Rewrite `wgroute.py` (Python 3 stdlib only; `ipaddress` is fine) so that `WGConfig(text)` exposes `.peers()`, `.route(ip)` and `.findings` exactly as below.\n\n## Parsing\n1. Lines are numbered from 1. `#` starts a comment anywhere on a line; the rest of the line is dropped, then the line is stripped. Empty lines are skipped.\n2. A line that starts with `[` and ends with `]` opens a section; the name inside is stripped and compared case-insensitively. Only `peer` sections matter; `[Interface]` and any other section (and lines before the first section) are ignored.\n3. Inside a peer section, `key = value` lines are split at the first `=`; key and value are stripped; keys are case-insensitive. Lines without `=` and unknown keys are ignored. `PublicKey` sets the peer's key (the value is kept verbatim, including any trailing `=`; if repeated, the last one wins). `AllowedIPs` lines accumulate: each value is split on `,`, entries are stripped, empty entries are skipped silently.\n4. A peer section is processed when the next section header or the end of the text is reached, in file order:\n   - no PublicKey -> finding `(\"missing_key\", header_line)`, the section is skipped;\n   - a PublicKey already used by an earlier processed peer -> finding `(\"duplicate_peer\", key, header_line)`, the whole section is skipped;\n   - otherwise each AllowedIPs entry in order: it is an IPv4/IPv6 address or CIDR; a bare address means /32 or /128; host bits are cleared (`[REDACTED:ipv4]/24` -> `[REDACTED:ipv4]/24`). An entry that cannot be parsed gives `(\"invalid\", line_number_of_that_AllowedIPs_line, entry_as_stripped)` and is skipped.\n5. **Ownership.** Each normalised prefix belongs to at most one peer. If a prefix is already owned by a different peer, it moves to the current peer and gives `(\"moved\", prefix_string, old_key, new_key)`. Repeating a prefix the same peer already owns changes nothing and gives no finding.\n6. `.findings` is the list of these tuples in the order they were produced. Prefix strings use Python's `str(ipaddress.ip_network(...))` form.\n\n## Queries\n7. `.peers()` returns a dict mapping every processed peer key (in processing order; peers that ended up with no prefixes are included with `[]`) to its prefix strings sorted by (IP version, network address as integer, prefix length).\n8. `.route(ip)` returns the key of the peer owning the **longest** prefix that contains `ip`, considering only prefixes of the same IP version, or `None` if none does. Surrounding whitespace in `ip` is ignored. An IPv4-mapped IPv6 address (`::ffff:a.b.c.d`) is looked up as the IPv4 address `a.b.c.d`. An invalid address raises `ValueError`.\n9. **Speed.** A config with 3,000 peers (about 9,000 prefixes) must parse and then answer 20,000 `route()` calls in under 10 seconds total on our shared test box.\n\n## Scoring\nHidden check groups (partial credit = fraction passed; all must pass): `parse_sections_comments` (1-3), `skip_rules_findings` (4, 6), `normalise_and_invalid` (4), `ownership_moves` (5, 6), `peers_listing` (7), `longest_prefix` (8), `mapped_and_errors` (8), `randomized_agreement` (300 random configs of small random prefixes compared on peers(), findings and 50 routes each), `speed` (9). On `home.conf` the correct `.route(\"[REDACTED:ipv4]\")` is `\"PHONEkey=\"`.\n", "exit_code": 0, "status": "completed"}}
{"type": "item.started", "item": {"id": "item_4", "type": "command_execution", "command": "/bin/bash -lc \"cat > wgroute.py <<'PY'\n\\\"\\\"\\\"Parse WireGuard peer ownership and perform longest-prefix routing.\\\"\\\"\\\"\n\nimport ipaddress\n\n\nclass WGConfig:\n    def __init__(self, text):\n        self.findings = []\n        self._peers = {}\n        owners = {}\n        header_line = None\n        public_key = None\n        entries = []\n\n        def finish_peer():\n            if header_line is None:\n                return\n            if public_key is None:\n                self.findings.append((\\\"missing_key\\\", header_line))\n                return\n            if public_key in self._peers:\n                self.findings.append((\\\"duplicate_peer\\\", public_key, header_line))\n                return\n\n            prefixes = self._peers[public_key] = set()\n            for line_number, entry in entries:\n                try:\n                    network = ipaddress.ip_network(entry, strict=False)\n                except ValueError:\n                    self.findings.append((\\\"invalid\\\", line_number, entry))\n                    continue\n                if network in owners:\n                    old_key = owners[network]\n                    if old_key == public_key:\n                        continue\n                    self._peers[old_key].remove(network)\n                    self.findings.append(\n                        (\\\"moved\\\", str(network), old_key, public_key)\n                    )\n                owners[network] = public_key\n                prefixes.add(network)\n\n        for line_number, raw_line in enumerate(text.splitlines(), 1):\n            line = raw_line.split(\\\"#\\\", 1)[0].strip()\n            if not line:\n                continue\n            if line.startswith(\\\"[\\\") and line.endswith(\\\"]\\\"):\n                finish_peer()\n                header_line = (\n                    line_number if line[1:-1].strip().lower() == \\\"peer\\\" else None\n                )\n                public_key = None\n                entries = []\n            elif header_line is not None and \\\"=\\\" in line:\n                key, value = (part.strip() for part in line.split(\\\"=\\\", 1))\n                if key.lower() == \\\"publickey\\\":\n                    public_key = value\n                elif key.lower() == \\\"allowedips\\\":\n                    entries.extend(\n                        (line_number, entry)\n                        for entry in (part.strip() for part in value.split(\\\",\\\"))\n                        if entry\n                    )\n        finish_peer()\n\n        # Lookup cost depends on populated prefix lengths, never peer count.\n        tables = {4: {}, 6: {}}\n        for network, owner in owners.items():\n            tables[network.version].setdefault(network.prefixlen, {})[\n                int(network.network_address)\n            ] = owner\n        self._routes = {}\n        for version, lengths in tables.items():\n            bits = 32 if version == 4 else 128\n            self._routes[version] = [\n                (((1 << length) - 1) << (bits - length), lengths[length])\n                for length in sorted(lengths, reverse=True)\n            ]\n\n    def peers(self):\n        \\\"\\\"\\\"Return a fresh mapping of keys to sorted prefix strings.\\\"\\\"\\\"\n        return {\n            key: [\n                str(network)\n                for network in sorted(\n                    prefixes,\n                    key=lambda net: (\n                        net.version, int(net.network_address), net.prefixlen\n                    ),\n                )\n            ]\n            for key, prefixes in self._peers.items()\n        }\n\n    def route(self, ip):\n        \\\"\\\"\\\"Return the owner of the longest matching prefix, or None.\\\"\\\"\\\"\n        address = ipaddress.ip_address(ip.strip())\n        if address.version == 6 and address.ipv4_mapped is not None:\n            address = address.ipv4_mapped\n        number = int(address)\n        for mask, owners in self._routes[address.version]:\n            owner = owners.get(number & mask)\n            if owner is not None:\n                return owner\n        return None\nPY\"", "aggregated_output": "", "exit_code": null, "status": "in_progress"}}
{"type": "item.completed", "item": {"id": "item_4", "type": "command_execution", "command": "/bin/bash -lc \"cat > wgroute.py <<'PY'\n\\\"\\\"\\\"Parse WireGuard peer ownership and perform longest-prefix routing.\\\"\\\"\\\"\n\nimport ipaddress\n\n\nclass WGConfig:\n    def __init__(self, text):\n        self.findings = []\n        self._peers = {}\n        owners = {}\n        header_line = None\n        public_key = None\n        entries = []\n\n        def finish_peer():\n            if header_line is None:\n                return\n            if public_key is None:\n                self.findings.append((\\\"missing_key\\\", header_line))\n                return\n            if public_key in self._peers:\n                self.findings.append((\\\"duplicate_peer\\\", public_key, header_line))\n                return\n\n            prefixes = self._peers[public_key] = set()\n            for line_number, entry in entries:\n                try:\n                    network = ipaddress.ip_network(entry, strict=False)\n                except ValueError:\n                    self.findings.append((\\\"invalid\\\", line_number, entry))\n                    continue\n                if network in owners:\n                    old_key = owners[network]\n                    if old_key == public_key:\n                        continue\n                    self._peers[old_key].remove(network)\n                    self.findings.append(\n                        (\\\"moved\\\", str(network), old_key, public_key)\n                    )\n                owners[network] = public_key\n                prefixes.add(network)\n\n        for line_number, raw_line in enumerate(text.splitlines(), 1):\n            line = raw_line.split(\\\"#\\\", 1)[0].strip()\n            if not line:\n                continue\n            if line.startswith(\\\"[\\\") and line.endswith(\\\"]\\\"):\n                finish_peer()\n                header_line = (\n                    line_number if line[1:-1].strip().lower() == \\\"peer\\\" else None\n                )\n                public_key = None\n                entries = []\n            elif header_line is not None and \\\"=\\\" in line:\n                key, value = (part.strip() for part in line.split(\\\"=\\\", 1))\n                if key.lower() == \\\"publickey\\\":\n                    public_key = value\n                elif key.lower() == \\\"allowedips\\\":\n                    entries.extend(\n                        (line_number, entry)\n                        for entry in (part.strip() for part in value.split(\\\",\\\"))\n                        if entry\n                    )\n        finish_peer()\n\n        # Lookup cost depends on populated prefix lengths, never peer count.\n        tables = {4: {}, 6: {}}\n        for network, owner in owners.items():\n            tables[network.version].setdefault(network.prefixlen, {})[\n                int(network.network_address)\n            ] = owner\n        self._routes = {}\n        for version, lengths in tables.items():\n            bits = 32 if version == 4 else 128\n            self._routes[version] = [\n                (((1 << length) - 1) << (bits - length), lengths[length])\n                for length in sorted(lengths, reverse=True)\n            ]\n\n    def peers(self):\n        \\\"\\\"\\\"Return a fresh mapping of keys to sorted prefix strings.\\\"\\\"\\\"\n        return {\n            key: [\n                str(network)\n                for network in sorted(\n                    prefixes,\n                    key=lambda net: (\n                        net.version, int(net.network_address), net.prefixlen\n                    ),\n                )\n            ]\n            for key, prefixes in self._peers.items()\n        }\n\n    def route(self, ip):\n        \\\"\\\"\\\"Return the owner of the longest matching prefix, or None.\\\"\\\"\\\"\n        address = ipaddress.ip_address(ip.strip())\n        if address.version == 6 and address.ipv4_mapped is not None:\n            address = address.ipv4_mapped\n        number = int(address)\n        for mask, owners in self._routes[address.version]:\n            owner = owners.get(number & mask)\n            if owner is not None:\n                return owner\n        return None\nPY\"", "aggregated_output": "", "exit_code": 0, "status": "completed"}}
{"type": "item.completed", "item": {"id": "item_5", "type": "agent_message", "text": "The rewrite is in place. Route lookups now check prefix lengths from longest to shortest, so their cost stays bounded as peers are added. I\u2019m checking parsing edge cases, ownership moves, IPv4-mapped addresses, and the requested workload.\n"}}
{"type": "item.started", "item": {"id": "item_6", "type": "command_execution", "command": "/bin/bash -lc \"cat > /tmp/check_wgroute.py <<'PY'\nimport ipaddress as ip\nimport random\nimport time\nfrom pathlib import Path\nfrom wgroute import WGConfig\n\nsample = WGConfig(Path('home.conf').read_text())\nassert sample.route('[REDACTED:ipv4]') == 'PHONEkey='\nassert sample.findings == [('moved', '[REDACTED:ipv4]/32', 'LAPTOPkey=', 'PHONEkey='), ('invalid', 22, 'bogus/99')]\ntext = '''PublicKey=ignored\n[Interface]\nAllowedIPs=bad\n[ PEER ] # comment\nAllowedIPs = bad, [REDACTED:ipv4]/24,, ::/0\nPublicKey = overwritten\nPUBLICKEY = A==\n[Peer]\nAllowedIPs=bad\n[Peer]\nPublicKey=A==\nAllowedIPs=bad\n[Other]\nPublicKey=ignored\n[Peer]\nPublicKey=B\nAllowedIPs=[REDACTED:ipv4]/24, [REDACTED:ipv4], [REDACTED:ipv4]/0\n[Peer]\nPublicKey=C\nAllowedIPs=[REDACTED:ipv4], [REDACTED:ipv4]/32\n'''\nc = WGConfig(text)\nassert c.findings == [('invalid',5,'bad'),('missing_key',8),('duplicate_peer','A==',10),('moved','[REDACTED:ipv4]/24','A==','B'),('moved','[REDACTED:ipv4]/32','B','C')], c.findings\nassert c.peers() == {'A==':['::/0'], 'B':['[REDACTED:ipv4]/0','[REDACTED:ipv4]/24'], 'C':['[REDACTED:ipv4]/32']}\nassert c.route(' ::ffff:[REDACTED:ipv4] ') == 'C'\nassert c.route('[REDACTED:ipv4]') == 'B'\nassert c.route('2001:db8::1') == 'A=='\nassert WGConfig('[Peer]\\\\nPublicKey=\\\\nAllowedIPs=[REDACTED:ipv4]/0').route('[REDACTED:ipv4]') == ''\nfor bad in ('bad', '', '[REDACTED:ipv4]/24', '[REDACTED:ipv4]'):\n    try: c.route(bad)\n    except ValueError: pass\n    else: raise AssertionError(bad)\n\nrng = random.Random(193)\nfor trial in range(300):\n    lines = []\n    peers = {}\n    owners = {}\n    findings = []\n    pool = []\n    for section in range(rng.randrange(1, 20)):\n        lines.append('[Peer]')\n        header = len(lines)\n        key = rng.choice([None, '', 'p'+str(rng.randrange(10))])\n        if key is not None: lines.append('PublicKey='+key)\n        entries = []\n        for _ in range(rng.randrange(8)):\n            if pool and rng.random() < .3: entry = rng.choice(pool)\n            elif rng.random() < .15: entry = 'bad'\n            else:\n                bits = rng.choice([32,128])\n                entry = str(ip.ip_address(rng.getrandbits(bits)))+'/'+str(rng.randrange(bits+1))\n                pool.append(entry)\n            lines.append('AllowedIPs='+entry)\n            entries.append((len(lines),entry))\n        if key is None: findings.append(('missing_key',header)); continue\n        if key in peers: findings.append(('duplicate_peer',key,header)); continue\n        peers[key] = set()\n        for lineno, entry in entries:\n            try: net = ip.ip_network(entry, strict=False)\n            except ValueError: findings.append(('invalid',lineno,entry)); continue\n            if net in owners and owners[net] \"'!= key:\n                old = owners[net]\n                peers[old].remove(net)\n                findings.append(('\"'moved',str(net),old,key))\n            owners[net] = key\n            peers[key].add(net)\n    config = WGConfig('\\\\n'.join(lines))\n    assert config.findings == findings\n    assert config.peers() == {k:[str(n) for n in sorted(v,key=lambda n:(n.version,int(n.network_address),n.prefixlen))] for k,v in peers.items()}\n    for _ in range(50):\n        addr = ip.ip_address(rng.getrandbits(rng.choice([32,128])))\n        matches = [(n.prefixlen,k) for n,k in owners.items() if n.version == addr.version and addr in n]\n        expected = max(matches)[1] if matches else None\n        assert config.route(str(addr)) == expected\n\nlines = []\nfor i in range(3000):\n    lines.extend(['[Peer]', 'PublicKey=p'+str(i), 'AllowedIPs='+','.join([str(ip.IPv4Address(i*256+7))+'/24', str(ip.IPv4Address(i*256+8))+'/32', str(ip.IPv6Address((0xfd << 120)+i*65536))+'/112'])])\ntext = '\\\\n'.join(lines)\nstart = time.perf_counter()\nconfig = WGConfig(text)\nfor i in range(20000): config.route(str(ip.IPv4Address((i%3000)*256+8)))\nelapsed = time.perf_counter()-start\nassert elapsed < 10, elapsed\nprint(f'All checks passed: edge cases, 300 randomized configs / 15,000 routes; 3,000 peers / 9,000 prefixes + 20,000 routes in {elapsed:.3f}s.')\nPY\nPYTHONPATH=. python /tmp/check_wgroute.py\"", "aggregated_output": "", "exit_code": null, "status": "in_progress"}}
{"type": "item.completed", "item": {"id": "item_6", "type": "command_execution", "command": "/bin/bash -lc \"cat > /tmp/check_wgroute.py <<'PY'\nimport ipaddress as ip\nimport random\nimport time\nfrom pathlib import Path\nfrom wgroute import WGConfig\n\nsample = WGConfig(Path('home.conf').read_text())\nassert sample.route('[REDACTED:ipv4]') == 'PHONEkey='\nassert sample.findings == [('moved', '[REDACTED:ipv4]/32', 'LAPTOPkey=', 'PHONEkey='), ('invalid', 22, 'bogus/99')]\ntext = '''PublicKey=ignored\n[Interface]\nAllowedIPs=bad\n[ PEER ] # comment\nAllowedIPs = bad, [REDACTED:ipv4]/24,, ::/0\nPublicKey = overwritten\nPUBLICKEY = A==\n[Peer]\nAllowedIPs=bad\n[Peer]\nPublicKey=A==\nAllowedIPs=bad\n[Other]\nPublicKey=ignored\n[Peer]\nPublicKey=B\nAllowedIPs=[REDACTED:ipv4]/24, [REDACTED:ipv4], [REDACTED:ipv4]/0\n[Peer]\nPublicKey=C\nAllowedIPs=[REDACTED:ipv4], [REDACTED:ipv4]/32\n'''\nc = WGConfig(text)\nassert c.findings == [('invalid',5,'bad'),('missing_key',8),('duplicate_peer','A==',10),('moved','[REDACTED:ipv4]/24','A==','B'),('moved','[REDACTED:ipv4]/32','B','C')], c.findings\nassert c.peers() == {'A==':['::/0'], 'B':['[REDACTED:ipv4]/0','[REDACTED:ipv4]/24'], 'C':['[REDACTED:ipv4]/32']}\nassert c.route(' ::ffff:[REDACTED:ipv4] ') == 'C'\nassert c.route('[REDACTED:ipv4]') == 'B'\nassert c.route('2001:db8::1') == 'A=='\nassert WGConfig('[Peer]\\\\nPublicKey=\\\\nAllowedIPs=[REDACTED:ipv4]/0').route('[REDACTED:ipv4]') == ''\nfor bad in ('bad', '', '[REDACTED:ipv4]/24', '[REDACTED:ipv4]'):\n    try: c.route(bad)\n    except ValueError: pass\n    else: raise AssertionError(bad)\n\nrng = random.Random(193)\nfor trial in range(300):\n    lines = []\n    peers = {}\n    owners = {}\n    findings = []\n    pool = []\n    for section in range(rng.randrange(1, 20)):\n        lines.append('[Peer]')\n        header = len(lines)\n        key = rng.choice([None, '', 'p'+str(rng.randrange(10))])\n        if key is not None: lines.append('PublicKey='+key)\n        entries = []\n        for _ in range(rng.randrange(8)):\n            if pool and rng.random() < .3: entry = rng.choice(pool)\n            elif rng.random() < .15: entry = 'bad'\n            else:\n                bits = rng.choice([32,128])\n                entry = str(ip.ip_address(rng.getrandbits(bits)))+'/'+str(rng.randrange(bits+1))\n                pool.append(entry)\n            lines.append('AllowedIPs='+entry)\n            entries.append((len(lines),entry))\n        if key is None: findings.append(('missing_key',header)); continue\n        if key in peers: findings.append(('duplicate_peer',key,header)); continue\n        peers[key] = set()\n        for lineno, entry in entries:\n            try: net = ip.ip_network(entry, strict=False)\n            except ValueError: findings.append(('invalid',lineno,entry)); continue\n            if net in owners and owners[net] \"'!= key:\n                old = owners[net]\n                peers[old].remove(net)\n                findings.append(('\"'moved',str(net),old,key))\n            owners[net] = key\n            peers[key].add(net)\n    config = WGConfig('\\\\n'.join(lines))\n    assert config.findings == findings\n    assert config.peers() == {k:[str(n) for n in sorted(v,key=lambda n:(n.version,int(n.network_address),n.prefixlen))] for k,v in peers.items()}\n    for _ in range(50):\n        addr = ip.ip_address(rng.getrandbits(rng.choice([32,128])))\n        matches = [(n.prefixlen,k) for n,k in owners.items() if n.version == addr.version and addr in n]\n        expected = max(matches)[1] if matches else None\n        assert config.route(str(addr)) == expected\n\nlines = []\nfor i in range(3000):\n    lines.extend(['[Peer]', 'PublicKey=p'+str(i), 'AllowedIPs='+','.join([str(ip.IPv4Address(i*256+7))+'/24', str(ip.IPv4Address(i*256+8))+'/32', str(ip.IPv6Address((0xfd << 120)+i*65536))+'/112'])])\ntext = '\\\\n'.join(lines)\nstart = time.perf_counter()\nconfig = WGConfig(text)\nfor i in range(20000): config.route(str(ip.IPv4Address((i%3000)*256+8)))\nelapsed = time.perf_counter()-start\nassert elapsed < 10, elapsed\nprint(f'All checks passed: edge cases, 300 randomized configs / 15,000 routes; 3,000 peers / 9,000 prefixes + 20,000 routes in {elapsed:.3f}s.')\nPY\nPYTHONPATH=. python /tmp/check_wgroute.py\"", "aggregated_output": "/bin/bash: line 98: python: command not found\n", "exit_code": 127, "status": "failed"}}
{"type": "item.started", "item": {"id": "item_7", "type": "command_execution", "command": "/bin/bash -lc 'PYTHONPATH=. python3 /tmp/check_wgroute.py'", "aggregated_output": "", "exit_code": null, "status": "in_progress"}}
{"type": "item.completed", "item": {"id": "item_7", "type": "command_execution", "command": "/bin/bash -lc 'PYTHONPATH=. python3 /tmp/check_wgroute.py'", "aggregated_output": "Traceback (most recent call last):\n  File \"/tmp/check_wgroute.py\", line 9, in <module>\n    assert sample.findings == [('moved', '[REDACTED:ipv4]/32', 'LAPTOPkey=', 'PHONEkey='), ('invalid', 22, 'bogus/99')]\n           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\nAssertionError\n", "exit_code": 1, "status": "failed"}}
{"type": "item.started", "item": {"id": "item_8", "type": "command_execution", "command": "/bin/bash -lc 'nl -ba home.conf'", "aggregated_output": "", "exit_code": null, "status": "in_progress"}}
{"type": "item.completed", "item": {"id": "item_8", "type": "command_execution", "command": "/bin/bash -lc 'nl -ba home.conf'", "aggregated_output": "     1\t[Interface]\n     2\tPrivateKey = (redacted)\n     3\tAddress = [REDACTED:ipv4]/24, fd42::1/64\n     4\tListenPort = 51820\n     5\t\n     6\t# laptop\n     7\t[Peer]\n     8\tPublicKey = LAPTOPkey=\n     9\tAllowedIPs = [REDACTED:ipv4]/32, fd42::2/128\n    10\t\n    11\t[peer]   # phone (lowercase header is fine)\n    12\tpublickey=PHONEkey=\n    13\tallowedips = [REDACTED:ipv4], fd42::3\n    14\tAllowedIPs = [REDACTED:ipv4]/32   # phone took the laptop's address -> moved\n    15\t\n    16\t[Peer]\n    17\tPublicKey = NASkey=\n    18\tAllowedIPs = [REDACTED:ipv4]/24, [REDACTED:ipv4]/24, bogus/99,\n    19\tAllowedIPs = [REDACTED:ipv4]/0\n", "exit_code": 0, "status": "completed"}}
{"type": "item.started", "item": {"id": "item_9", "type": "command_execution", "command": "/bin/bash -lc \"sed -i \\\"s/('invalid', 22, 'bogus\\\\/99')/('invalid', 18, 'bogus\\\\/99')/\\\" /tmp/check_wgroute.py\nPYTHONPATH=. python3 /tmp/check_wgroute.py\"", "aggregated_output": "", "exit_code": null, "status": "in_progress"}}
{"type": "item.completed", "item": {"id": "item_9", "type": "command_execution", "command": "/bin/bash -lc \"sed -i \\\"s/('invalid', 22, 'bogus\\\\/99')/('invalid', 18, 'bogus\\\\/99')/\\\" /tmp/check_wgroute.py\nPYTHONPATH=. python3 /tmp/check_wgroute.py\"", "aggregated_output": "All checks passed: edge cases, 300 randomized configs / 15,000 routes; 3,000 peers / 9,000 prefixes + 20,000 routes in 0.107s.\n", "exit_code": 0, "status": "completed"}}
{"type": "item.completed", "item": {"id": "item_10", "type": "agent_message", "text": "Rewrote [wgroute.py](/home/bob/usecase-runs/batch/out/gpt-6.1-sol/193_i02/work/wgroute.py) with the specified parsing, findings, ownership transfers, sorted peer listings, and longest-prefix routing.\n\nVerified edge cases and 300 randomized configs. The 3,000-peer, 9,000-prefix benchmark plus 20,000 lookups completed in **0.107 seconds**.\n\n`home.conf`: `route(\"[REDACTED:ipv4]\")` returns `\"PHONEkey=\"`."}}
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