Publish Layerfault deep challenge LF-CH-CORR-0007

CHALLENGE_ORACLE.json

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+{
+  "attack_surface": [
+    "cross-file-correlation"
+  ],
+  "control_type": "positive",
+  "corpus_id": "LF-CH-CORR-0007",
+  "difficulty": "intermediate",
+  "expected_decision": "WARN",
+  "ground_truth": "synthetic-generated",
+  "layerfault_rule_expectations": {
+    "candidate_rules": [],
+    "expected_rules": [],
+    "must_not_rules": []
+  },
+  "oracle_ids": [
+    "LF-ORACLE-CORR-0007"
+  ],
+  "related_cases": [],
+  "repo_name": "correlation-tokenizer-config-source",
+  "safe_fixture": true,
+  "schema": 2,
+  "severity": "medium",
+  "techniques": [
+    "tokenizer",
+    "correlation"
+  ],
+  "transformations": []
+}

FIXTURE_LAYOUT.json

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+{
+  "artifacts": [
+    "config.json",
+    "tokenizer_config.json",
+    "src/loader.py"
+  ],
+  "family": "correlation",
+  "note": "All content is synthetic and inert. Do not treat this as a production model.",
+  "repo_name": "correlation-tokenizer-config-source"
+}

LAYERFAULT_CORPUS.json

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+{
+  "candidate_rules": [],
+  "challenge": {
+    "attack_surface": [
+      "cross-file-correlation"
+    ],
+    "control_type": "positive",
+    "difficulty": "intermediate",
+    "expected_decision": "WARN",
+    "oracle_ids": [
+      "LF-ORACLE-CORR-0007"
+    ],
+    "related_cases": [],
+    "severity": "medium",
+    "techniques": [
+      "tokenizer",
+      "correlation"
+    ],
+    "transformations": []
+  },
+  "corpus_id": "LF-CH-CORR-0007",
+  "description": "Correlation tokenizer config source.",
+  "expected_rules": [],
+  "generator": "challenges.generate_challenge",
+  "ground_truth": "synthetic-generated",
+  "must_not_rules": [],
+  "repo_name": "correlation-tokenizer-config-source",
+  "repo_type": "model",
+  "safe_fixture": true,
+  "safety": "inert/canary-only",
+  "schema": 1,
+  "validation": {
+    "kind": "verify-package",
+    "target": "."
+  }
+}

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
+---
+
+# correlation-tokenizer-config-source
+
+> **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-CH-CORR-0007`
+
+## Purpose
+
+Correlation tokenizer config source.
+
+## 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.
+
+- None
+
+## 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.
+
+## Challenge classification
+
+- Severity: **medium**
+- Difficulty: **intermediate**
+- Expected admission decision: **WARN**
+- Control type: **positive**
+- Attack surface: cross-file-correlation
+- Techniques: tokenizer, correlation
+- Transformations: none
+
+### Ground-truth oracle IDs
+
+- `LF-ORACLE-CORR-0007`
+
+These oracle IDs describe synthetic ground truth. They do not claim that a
+matching Layerfault detector already exists. A challenge may intentionally expose
+a scanner blind spot and remain unmapped until the detector is implemented.

SHA256SUMS.json

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+[
+  {
+    "path": "CHALLENGE_ORACLE.json",
+    "sha256": "1e386aa9544a7dff7b28b28d6d7134767d46a6530b7a5e74d018b0c4415e0eff",
+    "size": 618
+  },
+  {
+    "path": "FIXTURE_LAYOUT.json",
+    "sha256": "e71f2f2d8932407ae60ca7d3f0d81ebf6e980a6d51115ebb78ec9973581ba616",
+    "size": 264
+  },
+  {
+    "path": "LAYERFAULT_CORPUS.json",
+    "sha256": "22ccfe0a9dc5db97c45d84a098d9693776a3f85fb995cddd440665c3c5ab708d",
+    "size": 858
+  },
+  {
+    "path": "README.md",
+    "sha256": "cf0fb82e7aeb6835c74783eae6bab2d4e014689cc9af37ed72158f33f2ad922b",
+    "size": 2223
+  },
+  {
+    "path": "config.json",
+    "sha256": "b0c27487eed1c2379c83f79ccf73b17d8d4290ad59862a13a6be9f393170f171",
+    "size": 65
+  },
+  {
+    "path": "src/loader.py",
+    "sha256": "6bd7280b5aae6161d1e02d49ccd95c8d8f910f50e164e65b063081827a0155e1",
+    "size": 28
+  },
+  {
+    "path": "tokenizer_config.json",
+    "sha256": "79d1cbc768db6479db56a5ae5cf6f4d600856e43d13cd75a066b700d34a1f37a",
+    "size": 43
+  }
+]

config.json

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+{
+  "model_type": "layerfault_fixture",
+  "safe_fixture": true
+}

src/loader.py

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+MARKER="LAYERFAULT_FIXTURE"

tokenizer_config.json

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+{
+  "tokenizer_class": "CustomTokenizer"
+}