Publish Layerfault deep challenge LF-CH-PREC-0010

CHALLENGE_ORACLE.json

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+{
+  "attack_surface": [
+    "precision-hard-negative"
+  ],
+  "control_type": "negative",
+  "corpus_id": "LF-CH-PREC-0010",
+  "difficulty": "adversarial",
+  "expected_decision": "PASS",
+  "ground_truth": "synthetic-generated",
+  "layerfault_rule_expectations": {
+    "candidate_rules": [],
+    "expected_rules": [],
+    "must_not_rules": [
+      "LF-CODE-EVAL",
+      "LF-CODE-SUBPROCESS",
+      "LF-MCP-TLS-ABSENT"
+    ]
+  },
+  "oracle_ids": [
+    "LF-ORACLE-PREC-0010"
+  ],
+  "related_cases": [],
+  "repo_name": "precision-benign-mixed-research-package",
+  "safe_fixture": true,
+  "schema": 2,
+  "severity": "informational",
+  "techniques": [
+    "benign",
+    "mixed",
+    "research",
+    "package"
+  ],
+  "transformations": []
+}

FIXTURE_LAYOUT.json

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+{
+  "artifacts": [
+    "README_RESEARCH.md",
+    "config.json",
+    "preview.png"
+  ],
+  "family": "precision",
+  "note": "All content is synthetic and inert. Do not treat this as a production model.",
+  "repo_name": "precision-benign-mixed-research-package"
+}

LAYERFAULT_CORPUS.json

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+{
+  "candidate_rules": [],
+  "challenge": {
+    "attack_surface": [
+      "precision-hard-negative"
+    ],
+    "control_type": "negative",
+    "difficulty": "adversarial",
+    "expected_decision": "PASS",
+    "oracle_ids": [
+      "LF-ORACLE-PREC-0010"
+    ],
+    "related_cases": [],
+    "severity": "informational",
+    "techniques": [
+      "benign",
+      "mixed",
+      "research",
+      "package"
+    ],
+    "transformations": []
+  },
+  "corpus_id": "LF-CH-PREC-0010",
+  "description": "Precision benign mixed research package.",
+  "expected_rules": [],
+  "generator": "challenges.generate_challenge",
+  "ground_truth": "synthetic-generated",
+  "must_not_rules": [
+    "LF-CODE-EVAL",
+    "LF-CODE-SUBPROCESS",
+    "LF-MCP-TLS-ABSENT"
+  ],
+  "repo_name": "precision-benign-mixed-research-package",
+  "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
+---
+
+# precision-benign-mixed-research-package
+
+> **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-PREC-0010`
+
+## Purpose
+
+Precision benign mixed research package.
+
+## 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.
+
+- `LF-CODE-EVAL`
+- `LF-CODE-SUBPROCESS`
+- `LF-MCP-TLS-ABSENT`
+
+## 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: **informational**
+- Difficulty: **adversarial**
+- Expected admission decision: **PASS**
+- Control type: **negative**
+- Attack surface: precision-hard-negative
+- Techniques: benign, mixed, research, package
+- Transformations: none
+
+### Ground-truth oracle IDs
+
+- `LF-ORACLE-PREC-0010`
+
+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.

README_RESEARCH.md

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+Model security research: pickle, eval, subprocess, MCP TLS, credentials, prompt injection and archives. Documentation only.

SHA256SUMS.json

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+[
+  {
+    "path": "CHALLENGE_ORACLE.json",
+    "sha256": "eb7e3893507bcce0ab1ba8c279b37b0b774f6d4514fd67bc48f6e91e38a3c2e1",
+    "size": 732
+  },
+  {
+    "path": "FIXTURE_LAYOUT.json",
+    "sha256": "b240a97cedfda4da8001594a1cf6284a86c7ab95de2f8fd78b0d150b379294a0",
+    "size": 261
+  },
+  {
+    "path": "LAYERFAULT_CORPUS.json",
+    "sha256": "63527d30cb2c8dca5b466c0ffc2939db06c9b238445272844070ab405694ceac",
+    "size": 972
+  },
+  {
+    "path": "README.md",
+    "sha256": "e8cd57a9d3a0360042c0b114c0bcdcec777451434d3ea5081d2e48b13efaad02",
+    "size": 2303
+  },
+  {
+    "path": "README_RESEARCH.md",
+    "sha256": "13a8b69d37ffe928755055fdc25fcf7b032002c79055ca1c4fd1d832706193c7",
+    "size": 124
+  },
+  {
+    "path": "config.json",
+    "sha256": "96393d0b32d4c81d9262ba348dfe48a7f81b12377509b5c2f12390f619acc039",
+    "size": 106
+  },
+  {
+    "path": "preview.png",
+    "sha256": "97fbbdd2fe7e0d51dc1993e45a8dc792d25bdb376854b73fd4d70859e1f48c3c",
+    "size": 924
+  }
+]

config.json

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+{
+  "notes": [
+    "security",
+    "research",
+    "false-positive-control"
+  ],
+  "safe_fixture": true
+}