Publish Layerfault synthetic corpus LF-CORPUS-ARC-0009

LAYERFAULT_CORPUS.json

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+{
+  "candidate_rules": [
+    "LF-ARCHIVE-FORMAT-MISMATCH",
+    "LF-FORMAT-CLAIM-MISMATCH"
+  ],
+  "corpus_id": "LF-CORPUS-ARC-0009",
+  "description": "ZIP filename carrying GZip magic and inert bytes.",
+  "expected_rules": [],
+  "generator": "security_edges.archive_format_mismatch",
+  "ground_truth": "synthetic-generated",
+  "must_not_rules": [],
+  "repo_name": "archive-format-mismatch",
+  "repo_type": "model",
+  "safety": "inert/canary-only",
+  "schema": 1,
+  "validation": {
+    "kind": "inspect",
+    "target": "mismatch.zip"
+  }
+}

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
+---
+
+# archive-format-mismatch
+
+> **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-ARC-0009`
+
+## Purpose
+
+ZIP filename carrying GZip magic and inert bytes.
+
+## 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-ARCHIVE-FORMAT-MISMATCH`
+- `LF-FORMAT-CLAIM-MISMATCH`
+
+## 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": "60ec8f3a76796aeb5f87939dd927c87e51c5b93edfe6ce05e9f9a4db7e8c872f",
+    "size": 538
+  },
+  {
+    "path": "README.md",
+    "sha256": "c948e6ee42ee9c37dfb390b67042e68f4815d593c9c1219118b1d7e3ae1c5e33",
+    "size": 1740
+  },
+  {
+    "path": "mismatch.zip",
+    "sha256": "697a6e9e13a51b4c422c8118bb1442a544bd2b9d7ce2d4ccdd06b5b6aaf9d35c",
+    "size": 14
+  }
+]

mismatch.zip

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+version https://git-lfs.github.com/spec/v1
+oid sha256:697a6e9e13a51b4c422c8118bb1442a544bd2b9d7ce2d4ccdd06b5b6aaf9d35c
+size 14