Publish Layerfault deep challenge LF-CH-TOKX-0013

CHALLENGE_ORACLE.json

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+{
+  "attack_surface": [
+    "tokenizer-processor"
+  ],
+  "control_type": "positive",
+  "corpus_id": "LF-CH-TOKX-0013",
+  "difficulty": "hard",
+  "expected_decision": "BLOCK",
+  "ground_truth": "synthetic-generated",
+  "layerfault_rule_expectations": {
+    "candidate_rules": [],
+    "expected_rules": [],
+    "must_not_rules": []
+  },
+  "oracle_ids": [
+    "LF-ORACLE-TOKX-0013"
+  ],
+  "related_cases": [],
+  "repo_name": "processor-multimodal-sidecar-indirection",
+  "safe_fixture": true,
+  "schema": 2,
+  "severity": "medium",
+  "techniques": [
+    "processor",
+    "indirection"
+  ],
+  "transformations": []
+}

FIXTURE_LAYOUT.json

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+{
+  "artifacts": [
+    "tokenizer_config.json",
+    "processor_config.json",
+    "assets/processor.json"
+  ],
+  "family": "tokenizer",
+  "note": "All content is synthetic and inert. Do not treat this as a production model.",
+  "repo_name": "processor-multimodal-sidecar-indirection"
+}

LAYERFAULT_CORPUS.json

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+{
+  "candidate_rules": [],
+  "challenge": {
+    "attack_surface": [
+      "tokenizer-processor"
+    ],
+    "control_type": "positive",
+    "difficulty": "hard",
+    "expected_decision": "BLOCK",
+    "oracle_ids": [
+      "LF-ORACLE-TOKX-0013"
+    ],
+    "related_cases": [],
+    "severity": "medium",
+    "techniques": [
+      "processor",
+      "indirection"
+    ],
+    "transformations": []
+  },
+  "corpus_id": "LF-CH-TOKX-0013",
+  "description": "Processor multimodal sidecar indirection.",
+  "expected_rules": [],
+  "generator": "challenges.generate_challenge",
+  "ground_truth": "synthetic-generated",
+  "must_not_rules": [],
+  "repo_name": "processor-multimodal-sidecar-indirection",
+  "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
+---
+
+# processor-multimodal-sidecar-indirection
+
+> **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-TOKX-0013`
+
+## Purpose
+
+Processor multimodal sidecar indirection.
+
+## 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: **hard**
+- Expected admission decision: **BLOCK**
+- Control type: **positive**
+- Attack surface: tokenizer-processor
+- Techniques: processor, indirection
+- Transformations: none
+
+### Ground-truth oracle IDs
+
+- `LF-ORACLE-TOKX-0013`
+
+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": "6a1970f7e70aec5c1e2cf97f9057a6d9c167477d9fa51f54cda4bf067b09bc7c",
+    "size": 613
+  },
+  {
+    "path": "FIXTURE_LAYOUT.json",
+    "sha256": "eb06c89ba556743f141c1a1adbe5a60e40c542807c63c6063108f8b8a3b8d5c8",
+    "size": 285
+  },
+  {
+    "path": "LAYERFAULT_CORPUS.json",
+    "sha256": "70817b368d51c2b5dfcc18ac22896ef27b9b06318d7c383f44e96b8b6cb9ec0e",
+    "size": 858
+  },
+  {
+    "path": "README.md",
+    "sha256": "41db54ba1cc8d5fa718828023fcba988e08665e9b33d884379e84ac409d3ce3d",
+    "size": 2223
+  },
+  {
+    "path": "assets/processor.json",
+    "sha256": "0e06664398e587d8032e73701995f090da1dbe97c5b347180cbcaa17bc6c765a",
+    "size": 78
+  },
+  {
+    "path": "processor_config.json",
+    "sha256": "18f577afea3bbc294acf3656cf3aca04c5e0108653a5e2b7bff092fd64605703",
+    "size": 79
+  },
+  {
+    "path": "tokenizer_config.json",
+    "sha256": "d3b9f2147b52291c7821c7c54b07c410bda9b378151f59af1bd3be83f699952f",
+    "size": 214
+  }
+]

assets/processor.json

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+{
+  "marker": "LAYERFAULT_FIXTURE:processor-multimodal-sidecar-indirection"
+}

processor_config.json

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+{
+  "processor_class": "AutoProcessor",
+  "sidecar": "assets/processor.json"
+}

tokenizer_config.json

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+{
+  "bos_token": "<bos>",
+  "chat_template": "{% for message in messages %}{{ message[\"role\"] }}: {{ message[\"content\"] }}{% endfor %}",
+  "eos_token": "<eos>",
+  "tokenizer_class": "PreTrainedTokenizerFast"
+}