Publish Layerfault deep challenge LF-CH-PRMX-0001

CHALLENGE_ORACLE.json

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+{
+  "attack_surface": [
+    "prompt-heuristic"
+  ],
+  "control_type": "negative",
+  "corpus_id": "LF-CH-PRMX-0001",
+  "difficulty": "basic",
+  "expected_decision": "PASS",
+  "ground_truth": "synthetic-generated",
+  "layerfault_rule_expectations": {
+    "candidate_rules": [],
+    "expected_rules": [],
+    "must_not_rules": [
+      "T1-001",
+      "LF-HEUR-DECODED-MATCH"
+    ]
+  },
+  "oracle_ids": [
+    "LF-ORACLE-PRMX-0001"
+  ],
+  "related_cases": [],
+  "repo_name": "prompt-clean-template-control",
+  "safe_fixture": true,
+  "schema": 2,
+  "severity": "informational",
+  "techniques": [
+    "clean",
+    "template",
+    "control"
+  ],
+  "transformations": []
+}

FIXTURE_LAYOUT.json

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+{
+  "artifacts": [
+    "template.txt"
+  ],
+  "family": "promptx",
+  "note": "All content is synthetic and inert. Do not treat this as a production model.",
+  "repo_name": "prompt-clean-template-control"
+}

LAYERFAULT_CORPUS.json

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+{
+  "candidate_rules": [],
+  "challenge": {
+    "attack_surface": [
+      "prompt-heuristic"
+    ],
+    "control_type": "negative",
+    "difficulty": "basic",
+    "expected_decision": "PASS",
+    "oracle_ids": [
+      "LF-ORACLE-PRMX-0001"
+    ],
+    "related_cases": [],
+    "severity": "informational",
+    "techniques": [
+      "clean",
+      "template",
+      "control"
+    ],
+    "transformations": []
+  },
+  "corpus_id": "LF-CH-PRMX-0001",
+  "description": "Prompt clean template control.",
+  "expected_rules": [],
+  "generator": "challenges.generate_challenge",
+  "ground_truth": "synthetic-generated",
+  "must_not_rules": [
+    "T1-001",
+    "LF-HEUR-DECODED-MATCH"
+  ],
+  "repo_name": "prompt-clean-template-control",
+  "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
+---
+
+# prompt-clean-template-control
+
+> **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-PRMX-0001`
+
+## Purpose
+
+Prompt clean template control.
+
+## 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.
+
+- `T1-001`
+- `LF-HEUR-DECODED-MATCH`
+
+## 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: **basic**
+- Expected admission decision: **PASS**
+- Control type: **negative**
+- Attack surface: prompt-heuristic
+- Techniques: clean, template, control
+- Transformations: none
+
+### Ground-truth oracle IDs
+
+- `LF-ORACLE-PRMX-0001`
+
+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": "7a25f4401c2887d86fc26d1d06c750b86d7a4cd7e4ba63d069962a93fb357b0f",
+    "size": 665
+  },
+  {
+    "path": "FIXTURE_LAYOUT.json",
+    "sha256": "a47500d2bb10be239ba4d750ad39a9a5e516e1b781013619d1dfdf9933ba4af1",
+    "size": 205
+  },
+  {
+    "path": "LAYERFAULT_CORPUS.json",
+    "sha256": "85487168d46405f689599b592d20b1091f4b9af16b6ed507447d28d2940c27ba",
+    "size": 895
+  },
+  {
+    "path": "README.md",
+    "sha256": "31f8543d6375c99eaa456044801327fe4e668384f048f7a200caa66a2c04007d",
+    "size": 2237
+  },
+  {
+    "path": "template.txt",
+    "sha256": "067eb86dd9cb23f2133e142e31fe87e90c3ee342ab4057c9320b37be830561f1",
+    "size": 41
+  }
+]

template.txt

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+Answer according to system instructions.