spec(pre-push-safety-net): pre-register the hunter experiment on population v2

This is the deciding experiment of the strategy review, fixed before any v2 pin is
hunted.
- Hunter: the unchanged tool hunter (default prompt, tools and 4 steps) on
  deepseek-flash.
- Scope: the ranker's top 20 regions for the case family, in four hunts. The model
  never sees the fix diff or the declared sites.
- Families: a fixed keyword table maps the model's family to the protocol's three.
- Scoring: exactly protocol v2's scorer.
- Cost: a hard $10 ceiling.

hunt.py runs it and scores it (--score). A pilot on a v1 development case
(mongo-express) found the vulnerability at lib/bson.js:60, at $0.031 per pin,
alongside a lot of speculative noise.

Transport fix found by the pilot: the DeepSeek endpoint the hunter builds was
unpriced, so the cost meter read $0.00 for any number of calls. It is now priced.

Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>
Claude-Session: https://claude.ai/code/session_01EmM1j46qgKMh3zqD1QMwEo
This commit is contained in:
Marius Ciepluch
2026-09-28 09:10:02 +02:00
co-authored by Claude Opus 5.5
parent cf579956d5
commit 6bfb05f952
4 changed files with 251 additions and 2 deletions
+191
View File
@@ -0,0 +1,191 @@
"""Run the UNCHANGED tool hunter over an independent population's pins, scoreable by the evaluation protocol.
The hunter (`tool_hunter.run_tool_hunter`, default prompt, default tools, default step budget) is handed the
regions the ranker selects for the case's family -- the same discovery and ranking the static scan starts from,
top `--max-regions` by rank, in groups of `--per-hunt` -- and nothing else: not the fix diff, not the advisory,
not the declared sites. Each pin's result is written in the scan-result shape `evaluate.py score` reads, into
`~/ousast-results/independent-<vN>-hunter/scans/`, so the same pre-registered matching scores it.
Model calls go to the resolved hunter client (DeepSeek when its key is set); the run stops, and says so, when
the recorded spend reaches `--budget-usd`.
Usage:
python benchmarks/independent/hunt.py --population population-v2.toml [--only ID,...] [--pins a,b]
python benchmarks/independent/hunt.py --population population-v2.toml --score
python benchmarks/independent/hunt.py --pilot-root <checkout> --family injection # a development case
"""
from __future__ import annotations
import argparse
import dataclasses
import json
import shutil
import sys
import time
from pathlib import Path
HERE = Path(__file__).resolve().parent
sys.path.insert(0, str(HERE))
import evaluate # noqa: E402
from openultrasast.mapping import analyze_entry_points # noqa: E402
from openultrasast.model.endpoint import DEFAULT_DETECTOR_MODEL # noqa: E402
from openultrasast.model.regions import regions_for # noqa: E402
from openultrasast.model.shipped import declared_sources # noqa: E402
from openultrasast.preprocess import build_file_target, enumerate_source_files # noqa: E402
# The model names a family in its own words; the protocol scores three. Fixed before any v2 pin is hunted.
FAMILY_WORDS = {
"untrusted_destination": ("ssrf", "server-side request", "open redirect", "redirect", "url fetch", "request forgery"),
"config_secrets": ("cors", "debug", "secret", "hardcoded", "hard-coded", "credential", "misconfig", "configuration", "tls", "certificate"),
"injection": ("inject", "sql", "sqli", "nosql", "command", "rce", "code execution", "eval", "template", "ssti", "xss", "deserializ", "ldap", "xpath"),
}
def family_of(raw: str, title: str) -> str:
text = f"{raw} {title}".lower()
for family, words in FAMILY_WORDS.items():
if any(word in text for word in words):
return family
return "other"
def hotspots_for(root: Path, family: str, max_regions: int) -> list:
from openultrasast.complexity.map import Hotspot
files = enumerate_source_files(root)
if not files or not sum(p.stat().st_size for p in files if p.is_file()):
raise SystemExit(f"read nothing under {root}")
targets = [build_file_target(root, p) for p in files]
regions = [
dataclasses.replace(r, families=tuple(f for f in r.families if f == family))
for r in regions_for(analyze_entry_points(root, targets), targets, shipped=declared_sources(root))
]
ranked = sorted((r for r in regions if r.families), key=lambda r: (-r.rank, r.path, r.function or ""))[:max_regions]
return [
Hotspot(
path=r.path,
function_name=r.function or None,
score=float(r.rank),
band="ranker",
signals={},
rationale=f"ranked region offering {family}",
test_hint=None,
inventory_finding_ids=(),
)
for r in ranked
]
def _spent(client: object) -> float:
cost = getattr(client, "cost_usd", None)
return float(cost()) if callable(cost) else 0.0
def hunt(root: Path, family: str, args: argparse.Namespace, spent: list[float]) -> dict:
from openultrasast import tool_hunter
client = tool_hunter.resolve_hunter_client()
if client is None:
raise SystemExit("no hunter client: set DEEPSEEK_API_KEY")
started = time.monotonic()
hotspots = hotspots_for(root, family, args.max_regions)
groups = [hotspots[i : i + args.per_hunt] for i in range(0, len(hotspots), args.per_hunt)]
findings, done, errors = [], 0, []
for group in groups:
if sum(spent) + _spent(client) >= args.budget_usd:
errors.append("budget_exhausted")
break
try:
found = tool_hunter.run_tool_hunter(root, group, client=client, model=args.model, max_steps=tool_hunter.DEFAULT_MAX_STEPS)
done += 1
except Exception as error: # noqa: BLE001 -- recorded per hunt; a pin with no completed hunt is an instrument failure
errors.append(f"{type(error).__name__}: {str(error)[:200]}")
continue
for f in found:
raw = next((t.split(":", 1)[1] for t in f.tags if t.startswith("family:")), "")
findings.append(
{
"site": f"{f.path}:{f.line or 0}:{f.function_name or ''}",
"family": family_of(raw, f.title),
"model_family": raw,
"title": f.title,
"witness": f.rationale[:400],
}
)
cost = _spent(client)
spent.append(cost)
return {
"root": str(root),
"families": [family],
"model": args.model,
"seconds": round(time.monotonic() - started, 1),
"questions": len(groups),
"completed": done,
"completed_regions": sorted({f"{h.path}:{h.function_name or ''}" for g in groups[:done] for h in g}),
"hunt_errors": errors,
"cost_usd": round(cost, 4),
"findings": sorted(findings, key=lambda f: f["site"]),
}
def main() -> int:
parser = argparse.ArgumentParser(description=__doc__, formatter_class=argparse.RawDescriptionHelpFormatter)
parser.add_argument("--population", type=Path, default=evaluate.POPULATION)
parser.add_argument("--only", default="")
parser.add_argument("--pins", default="")
parser.add_argument("--pilot-root", type=Path)
parser.add_argument("--family", default="injection")
parser.add_argument("--model", default=DEFAULT_DETECTOR_MODEL)
parser.add_argument("--max-regions", type=int, default=20)
parser.add_argument("--per-hunt", type=int, default=5)
parser.add_argument("--budget-usd", type=float, default=10.0)
parser.add_argument("--score", action="store_true", help="score the hunter's results with the population's protocol")
args = parser.parse_args()
from openultrasast.config import load_config
load_config() # loads the project's .env: DeepSeek is the chat provider, OpenRouter only embeddings
spent: list[float] = []
if args.pilot_root:
result = hunt(args.pilot_root, args.family, args, spent)
print(json.dumps({k: v for k, v in result.items() if k != "findings"} | {"findings": result["findings"]}, indent=1))
return 0
evaluate.use(args.population)
evaluate.RESULTS = evaluate.RESULTS.with_name(evaluate.RESULTS.name + "-hunter")
if args.score:
return evaluate.score_v2()
only = {c.strip() for c in args.only.split(",") if c.strip()}
wanted = {p.strip() for p in args.pins.split(",") if p.strip()}
for case in evaluate.cases():
if only and case["id"] not in only:
continue
for label, commit in evaluate.pins(case).items():
if wanted and label not in wanted:
continue
out = evaluate.RESULTS / "scans" / f"{case['id']}--{label}.json"
if out.is_file():
continue
if sum(spent) >= args.budget_usd:
print(json.dumps({"stopped": "budget", "spent_usd": round(sum(spent), 4)}), flush=True)
return 1
out.parent.mkdir(parents=True, exist_ok=True)
checkout = evaluate.export(case, label, commit)
try:
result = hunt(checkout, case["family"], args, spent)
finally:
shutil.rmtree(checkout, ignore_errors=True)
if not result["completed"]:
result["instrument_error"] = "no hunt completed: " + "; ".join(result["hunt_errors"][:3])
result["root"] = "/case"
out.write_text(json.dumps(result, indent=2) + "\n")
print(
json.dumps({"case": case["id"], "pin": label, "findings": len(result["findings"]), "hunts": f"{result['completed']}/{result['questions']}", "usd": result["cost_usd"], "total_usd": round(sum(spent), 4)}),
flush=True,
)
return 0
if __name__ == "__main__":
raise SystemExit(main())