Publish Layerfault synthetic corpus LF-CORPUS-PKL-0004

LAYERFAULT_CORPUS.json

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+{
+  "candidate_rules": [
+    "LF-PICKLE-OPAQUE-COMPRESSED"
+  ],
+  "corpus_id": "LF-CORPUS-PKL-0004",
+  "description": "GZip-compressed benign Pickle stored with a .pkl extension.",
+  "expected_rules": [],
+  "generator": "extra_formats.pickle_compressed",
+  "ground_truth": "synthetic-generated",
+  "must_not_rules": [],
+  "repo_name": "pickle-compressed",
+  "repo_type": "model",
+  "safety": "inert/canary-only",
+  "schema": 1,
+  "validation": {
+    "kind": "inspect",
+    "target": "model.pkl"
+  }
+}

README.md

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+---
+license: apache-2.0
+tags:
+- layerfault
+- security-research
+- model-security
+- synthetic
+- adversarial-testing
+extra_gated_prompt: >-
+  This repository is a synthetic security-test artifact from the Layerfault
+  corpus. It intentionally contains adversarial characteristics (e.g.
+  suspicious pickle opcodes, executable-format smuggling, prompt-injection
+  strings) designed to exercise security scanner detection rules. It is
+  **not** a usable ML model and must never be loaded or executed outside an
+  isolated scanner-testing environment. By accepting, you confirm you
+  understand this repository is a test fixture, not production model
+  weights.
+extra_gated_button_content: I understand this is a security test fixture and accept the risk
+gated: auto
+---
+
+# pickle-compressed
+
+> **SECURITY TEST ARTIFACT — DO NOT USE AS A PRODUCTION MODEL**
+
+This repository is part of the Layerfault synthetic security corpus.
+It is deliberately constructed to contain security-relevant characteristics for scanner testing.
+
+**Corpus ID:** `LF-CORPUS-PKL-0004`
+
+## Purpose
+
+GZip-compressed benign Pickle stored with a .pkl extension.
+
+## Direct expected Layerfault rules
+
+- None; this repository is a control/comparison input.
+
+## Candidate rules
+
+These are deliberately plausible targets that remain marked as candidates until the exact
+Layerfault build used for certification confirms them.
+
+- `LF-PICKLE-OPAQUE-COMPRESSED`
+
+## Negative-control rules
+
+These should remain silent for this corpus item.
+
+- None
+
+## Safety
+
+The corpus uses fake secrets, loopback/`.invalid` network destinations, harmless marker output,
+and synthetic model behavior only. It is intended for static scanning and isolated security testing.

SHA256SUMS.json

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+[
+  {
+    "path": "LAYERFAULT_CORPUS.json",
+    "sha256": "45eeb0327e00f576cc3ad63bbdbed07ba3f44c559ee60b603ff8cda4e2139a05",
+    "size": 501
+  },
+  {
+    "path": "README.md",
+    "sha256": "f3114e9a8a36b44cfcc67d94bfbf0ded13c2ee9c39d1a48a6daee7cdebd7c05e",
+    "size": 1716
+  },
+  {
+    "path": "model.pkl",
+    "sha256": "5236fd34519760ab1062a6422cfba79f8ee757abd54a7bda4e5cc3226fdbd4fd",
+    "size": 59
+  }
+]

model.pkl

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+version https://git-lfs.github.com/spec/v1
+oid sha256:5236fd34519760ab1062a6422cfba79f8ee757abd54a7bda4e5cc3226fdbd4fd
+size 59