Reasons carry type plus a sanitised message tail; command failures carry phase,
exit code and bounded stderr. Scratch walk tolerates directories pip removes
mid-walk; writable /workspace/home and runtime paths. Capacity retries delete a
possibly created task before resubmitting. Docker smoke checks the image first.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
20 development pairs, one per repository, 4 per language, 5 per family; identities
in a gitignored manifest, counts and digest committed. Executor smoke drives one
executor task end to end without a model and fails loudly on an unread clone.
kube-ax operator constraints as steering.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Demos are data the verifier executes (fixed build recipes, runtime+path start,
HTTP/CLI steps with captures; the canary is never referable). The agent loop with
the key never runs repository code: executor tasks without a key exchange commands
and results through presigned objects. AX capacity errors are back-pressure with at
most 2 tasks in flight; caches and builds under /workspace with a 2 GiB guard;
verifiers take one presigned archive per side. Launcher fix: private /dev in bwrap.
190 tests on the host; probe 5/5 demonstrated.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Probe runs each oracle toy pair with a real demo and two gaming demos, records
image facts, RSS and disk, fails loudly if isolation is unavailable; dispatchable
as an AX task. Worker: reason step without tools, explore tool loop whose run tool
goes through the sandbox with a scrubbed env (model key absent), spend reserved
before each call. Host probe: 5/5 real demos demonstrated, 10/10 gaming demos
inconclusive. 89 tests.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Board as immutable versioned blobs (coordinator sole writer); budget reserve/settle
before model calls; per-task and run caps; coordinator loop over an injected
executor; batch.py accepts a fixed allow-list of search variables; XSS browser
oracle; ousast-search-task image (Python, Node/TypeScript, PHP, Java 17, sqlite,
bwrap, chromium) built by CI. 103 tests on the host.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
The verifier, not the artefact, observes the effect: SQL, path, command and SSRF
oracles owned by the verifier (XSS needs a browser executor, else no_oracle);
artefact exit code and output ignored; immutable checkout and dependencies;
3 runs per side; one-sided build or readiness failure is inconclusive. An
isolation failure raises IsolationUnavailable instead of reading as
could_not_build (the NPROC limit now applies inside the user namespace).
35 tests, including gaming attempts and 300 host processes.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
gVisor replays exhausted the hook's 30 s deadline in the snapshot step on a
1,725-file repository; cluster replays now use 30 s x a measured slowdown
factor, verified on a native sample. The engine runner deletes each pin's fetched
source (1.8 GB had accumulated), caps the cache at 500 MB and refuses below
1.5 GB free. Proof 4.4: two engine pins via the generic dispatcher match the VM
baseline exactly. Implemented with Codex.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Implemented with Codex; task 1.5 run by the coordinator against the real
sources (S3 memory read-only).
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Two engine actors died at gVisor level during a 12-pin run (AX phase Failed, no
result). Implemented with Codex.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Through Cloudflare, signed requests for keys ending .tar/.gz/.zip/.bin reached
RustFS altered and failed with 403 (cf-cache-status BYPASS); the same signed
request straight to RustFS on the LAN returned 200. A Cloudflare cache-bypass
rule on files.because-security.com fixes it (all extensions 200, DYNAMIC); the
engine executors keep .dat as a safeguard, the plane keeps output.tar.
Implemented with Codex.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
The Joern leak-audit record named spent population v1/v2 repositories, which
the reserved-repository guard forbids outside benchmarks/independent/ (no v3
repository was involved: 0 matches). Records now carry counts and SHA-256
digests. With Codex.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Coverage 72 path, 231 asked-nothing, 9 failed, 189 unsupported. The engine
almost never distinguishes a vulnerable function from its fix, so a Joern-slice
prompt experiment is not funded; the lever is the engine's knowledge of fix
mechanisms.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Batch 3 of real (vulnerable function, fixed function) pointer pairs, mined at
zero model cost from reviewed GHSA advisories (pip, npm, maven, composer,
published since 2023, newest first). Same rules as batch 2, widened three
ways: a merged PR's single commit when the advisory links no commit, commits
up to 6 files / 240 lines, and two-family advisories with the family read
from the diff. Every candidate's function diff was read: 412 reviewed, 255
kept, 3 one-per-repository, 2 withheld by the reserved-population guard
(bisected with output discarded). Permissive licences only; no repository
named elsewhere under benchmarks/; no WordPress plugin.
Kept 251: injection 56, untrusted_destination 26, path 71, output_encoding
69, access_control 20, deserialization 9; python 83, typescript 48, php 46,
java 37, javascript 37. Only 12 post-cutoff: batch 2 had used up the
post-2026-06-01 pool. Memory 1133 -> 1635 static examples; complete pairs in
the whole memory 459 -> 710. Embeddings: 15 calls, $0.0030. No chat-model
call, no Docker, no Joern. Record:
benchmarks/measurements/2026-10-04-decision-engine-harvest-3.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
The query fix stops a class-level call from aborting the whole taint batch on
real PHP code; gate, map_gate and pair_gate outputs are unchanged. Trace parsing
lives with the runner (benchmarks/learn/engine_trace_parse.py).
Co-Authored-By: Claude Opus 5.5 <[email protected]>
The worker sent tuple params as JSON arrays; taint.sc expects comma-joined
strings (ujson InvalidData, exit 1). Implemented with Codex.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Root causes of the 50 failed pins in trace run 1: advisory pairs were fed as
excerpts (invalid Java/JS fragments), the JVM defaulted to ~768 MB heap in a
3 GB container, and mixed-language pins were refused. Implemented with Codex.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
The 2026-09-14 engine image has no PyYAML or boto3; the worker no longer imports
learn.examples. Implemented with Codex.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
slice.py renders source -> step -> sink lines with fixed wording for flow,
no-flow and not-analysable; the prompt option is default-off (byte-identical
default prompt). semantic IR: JS/C declarations count as assignments, augmented
assignment keeps its target (gate, map_gate, pair_gate outputs unchanged).
Audit over exp-004's 501 units: 59 flow, 161 no-flow, 281 not analysable;
has-flow within-pair accuracy 0.52, pooled AUC 0.55 -- no leak. Fixes a
numbering bug that rejected every excerpt with a blank line. With Codex.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Population v2 scans are named <case>--<side>_a/_b.json; the script looked only
for <case>--<side>.json and recorded those examples as engine not-run. The two
repeats combine symmetrically for both sides. Implemented with Codex.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
The estimator priced all input at the full rate (\$5.58 estimated vs \$1.24
spent); it now uses the family mean billed cost of cached responses when usage
is recorded. Implemented with Codex.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Supplementary analysis, not a new decision: exp-003's verdict stands.
The 142 units excluded for an uncached response were filled with the same
six incumbent programs, parameters and request keys, on exp-003's
937-example memory (the harvest's 196 rows and its 2026-10-03 embeddings
left out; a zero-cost replay first reproduced exp-003 exactly: 211
decided, 1056 replayed, $0.582876). Fill: MeteredClient, ceiling $0.99
under the approved $1.00, 697 client calls, $0.331759, no provider error.
Replay on all 353 units (244 paired, 146 groups): 0 client calls, $0.0,
1768 responses replayed; no arm flags any unit, the registered rule reads
inconclusive. Calibration holds only for untrusted destination (ECE
0.0454) and arm A still finds no BLOCK point there.
benchmarks/experiments/exp-003-precision-bound-blocking/result-complete-cache.json
exp-004 registered in s3://sast-memory (manifest 87fceb65..., pin
2ad9c1d, units pending): benchmarks/experiments/exp-004-pooled-block-gate/
registration.json. docs/decision-engine.md: both, briefly.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01EmM1j46qgKMh3zqD1QMwEo
Real (vulnerable function, fixed function) pointer pairs for the six compiled
families, mined at zero model cost from reviewed GHSA advisories (pip, npm,
maven, composer), newest first: 79 of 98 published after 2026-06-01
(post_cutoff = true). Each pair: one linked one-parent fix commit, <= 4 source
files / 120 lines, the function holding the changed code lines declared once on
both sides with a changed body; every function diff read and kept only when the
named function holds the fix (145 reviewed, 100 kept); 2 dropped by the
reserved-population test; permissive licences only, no repository named
elsewhere under benchmarks/.
New label source advisory-fixes-2; the advisory-fix tests run over both
batches. Memory 937 -> 1133 static examples (98 paired groups added);
positives-only groups stay 99 (vibe-py/dev-php/v2 data gaps), their share of
positive groups in the six families 0.40 -> 0.29. Embeddings: 7 calls,
$0.0014. No chat-model call. Record:
benchmarks/measurements/2026-10-03-decision-engine-negatives-harvest.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01EmM1j46qgKMh3zqD1QMwEo
Zero-cost replay of the six slice-2 programs: meter 0 client calls, $0.0;
211 of 353 units scored, 142 excluded for an uncached response (path lost
all 39). Arm A (calibrated) fails calibration (ECE 0.077 access control,
0.1067 injection); arm B (Wilson LB >= 0.95, nested) chooses no threshold on
any fold, as the registration's power note predicted (73 clean flags needed,
38 paired injection positives); secondary arm C flags nothing either. The
instrument check shows real scores; the zero is the rule's.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01EmM1j46qgKMh3zqD1QMwEo
Registered in s3://sast-memory at dd7ebc1: manifest 5917f9a1, units 338de998
(353 units, 146 groups). Primary metric, decision rule and the threshold
selection are fixed in the manifest; the power note says arm B cannot reach
a Wilson LB of 0.95 on this data (73 clean flags needed, 38 paired
positives at most).
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01EmM1j46qgKMh3zqD1QMwEo
Kind proofs: records 01 and 02. Task 2.6 (receiver removal) is paused while the
safety net and the decision engine come first. deployment.md conflicts resolved
in the plain-language style; corrects the RuntimeClass claim (Substrate runs
runsc inside its worker pod).
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01EmM1j46qgKMh3zqD1QMwEo
Live on kind with the runner image that carries 2.2
(ousast-runner@sha256:d2a55293...; templates and validation-46 Tasks repinned,
128 lines; kind-images.json updated): the smoke Run on store delivery finished
in 26 s and 24 s; the tar was PUT to runs/ax-e2e-smoke/facts/output.tar
(10240 B) and collected 2 s later; read back from the store its members
(facts.json 451 B, summary.json 238 B, units.jsonl 291 B) equal the extracted
files; facts.json, summary.json and done.json (149 B) re-put, state.json
(350 B) mirrored; a rerun from an empty results root seeded state.json from the
store and finished in 2 s without resubmitting. The actor's egress policy read
back live: one tlsPassthrough rule on 443 naming the store host, nothing else.
`ousast plane status ax-e2e-smoke` printed the table each time. Record:
benchmarks/measurements/2026-10-02-k8s-02-store-delivery/record.json with the
smoke outputs, store read-back and policy beside it. Task 2.6 (receiver
removal) is paused by the maintainer's reprioritisation.
Gates: pytest 2031 passed, 42 skipped, exit 0; ruff check 0; ruff format 0;
mypy 0. (The first run, at 0.97 GiB free disk, failed 11 tests and errored 5
on the FileStore's 1 GiB free-space refusal; rerun after the disk was freed.)
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01EmM1j46qgKMh3zqD1QMwEo
Rerun records, serve-static and unrolled/secure (same planted commits) with
this build installed from its wheel: 6 replays and 10 hook pushes, all exit 0
in 0.69-1.21 s against the 30 s deadline, input read proven per run. The
planted JS eval in a new file surfaces in the quick tier on the host and, in
one Docker engine run (190.9 s, deadline 300), as two advisory engine findings
classified new/file_added_in_head. The planted Python %-formatted SQL is still
missed (no quick rule, no host engine): recorded as a coverage gap, no rule
edited. Go is named as not covered. The run caught a wrong install hint in
the hook (the package is not on PyPI); corrected here.
Record: benchmarks/measurements/2026-10-02-pre-push-operational-1/record.json
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01EmM1j46qgKMh3zqD1QMwEo
`ousast pre-push install|uninstall [REPO] [--force] [--docker]` ships in the
wheel with the hook as package data; it honours core.hooksPath, refuses an
existing hook unless --force (which chains it as pre-push.before-ousast), and
uninstall restores the chained hook. ops/ousast-docker is a hook-callable
script: the repository read-only and the artifact directory at their own
paths, stdin passed through, no network, --memory 3g, the GHCR 2.0.1 image by
default, advisory exit unless blocking. Help text for every pre-push flag; a
first-run guide, settings, skip-reason glossary, CI recipe and full --help in
docs/scanning.md; README tiers 1 and 2 pull the published image. The image
was not rebuilt: 1.1 GB free, below the 4 GB threshold. Requirements 7.4, 9.6.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01EmM1j46qgKMh3zqD1QMwEo
--engine inline|background|off (hook: OUSAST_PUSH_ENGINE). background returns
after the quick tier and starts one detached explicit replay of the same base
and head (push/background.py), one at a time per artifact directory; its
artifact lands under <artifact dir>/engine/<repo key>/<head>.json and the next
run prints "Engine result for <head> from the previous push" once. A deadline
miss says so in one line naming the deadline and the background option. No
engine speed work. Requirement 9.5.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01EmM1j46qgKMh3zqD1QMwEo
Before the engine and inside the same deadline, the shipped quick rules run
over the head side of the changed files (push/quick.py) and keep matches on
changed lines or in changed functions. They print as advisory pattern matches,
labeled apart from admitted alerts, are kept in the artifact's quick_tier with
the files and bytes read, and never admit or block. A new branch with no
remote base runs the quick tier over its last commit and says so. The planted
eval in serve-static's new debug.js now surfaces; the planted Python
%-formatted SQL in records does not (a quick-rule coverage gap, no rule
edited). Requirement 9.3.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01EmM1j46qgKMh3zqD1QMwEo
One terminal line per distinct coverage reason (push/explain.py): hex-encoded
paths decoded, per-question sha256 tokens dropped and counted, unknown reasons
still printed; the JSON artifact keeps the raw values. A changed language with
no engine frontend and no quick rules is recorded and printed as "language not
covered: <lang> (...)", in pre-push and in `ousast scan`. The scan report
renders the eight degradations cli.py recorded but never showed, and any
reason without a sentence. The hook forwards OUSAST_COMPARISON_BASE.
Requirement 9.2.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01EmM1j46qgKMh3zqD1QMwEo
