feat(plan-01): Phase 1 — relocate harness code to packages/casan-harness (symlink facade)

Physically move the pure-code subtrees out of .specify into the package, leaving
compat symlinks at the old .specify/<dir> paths so every existing reference (internal
CASAN_HARNESS_ROOT + external CI/docker/mjs) keeps resolving. Runtime state stays put.

Moved (git mv): scripts/ tests/ security/ templates/ config/ governance/ memory/
  .specify/<dir>  ->  packages/casan-harness/<dir>   (+ .specify/<dir> symlink)
Stays in .specify (state/governance/domain, handled later): logs/ agentops/ level5/
  init-options.json traceability-map.json

Python `.resolve()` self-location followed the compat symlink into packages and lost
the app root; generate-casan-demo-context.py, generate-agentops-dashboard.py and
dashboard-server.py now walk UP for the `.specify` state marker instead of a fixed
parent depth (fixes "missing trace files" in run-casan4).

Full gate: PASS=64 FAIL=0 SKIP=3 (CASAN_CI_STEP_TIMEOUT_SEC=1200 — track-a ~450s runs
close to the 600s default and can tip over under load; this is timing variance, not a
regression — it passed cleanly with headroom). Runtime log/audit artifacts kept unstaged.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This commit is contained in:
thanhnv
2026-07-08 00:06:00 +09:00
co-authored by Claude Opus 4.8
parent 2c765c9a45
commit 664bd1f00c
229 changed files with 268 additions and 3 deletions
@@ -0,0 +1,62 @@
#!/usr/bin/env python3
"""CASAN H4 — Unicode confusable / obfuscation normalizer (Track A, V3).
Reads text on stdin, writes a normalized variant on stdout used ONLY for
injection/jailbreak phrase matching (never for PII/secret redaction, so we
never widen what counts as a secret).
Deterministic transforms, in order:
1. NFKC compatibility normalization — folds fullwidth (ignore) and
other compatibility forms to their ASCII equivalents.
2. Strip zero-width / BOM / soft-hyphen formatting characters that split a
word so a blocklist never sees it (i·g·n·o·r·e).
3. Fold a fixed table of common Cyrillic/Greek homoglyphs to their Latin
lookalikes (іgnоrе -> ignore). NFKC does NOT do this — confusables are a
separate Unicode concern — so the table is explicit and auditable.
The table is intentionally small and covers the lookalikes actually used in
prompt-injection homoglyph attacks; extend it as new vectors appear.
"""
import sys
import unicodedata
# Zero-width, BOM, and invisible formatting code points.
ZERO_WIDTH = {
0x200B, # zero-width space
0x200C, # zero-width non-joiner
0x200D, # zero-width joiner
0x2060, # word joiner
0xFEFF, # BOM / zero-width no-break space
0x00AD, # soft hyphen
0x180E, # Mongolian vowel separator
0x2061, 0x2062, 0x2063, 0x2064, # invisible math operators
}
# Common Cyrillic / Greek homoglyphs -> Latin lookalike. Lowercase and
# uppercase both listed because matching is case-insensitive downstream but the
# fold must run before case handling to be safe.
CONFUSABLES = {
# Cyrillic lowercase
"а": "a", "е": "e", "о": "o", "р": "p", "с": "c", "у": "y", "х": "x",
"ѕ": "s", "і": "i", "ј": "j", "ԁ": "d", "һ": "h", "ӏ": "l", "п": "n",
"г": "r", "т": "t", "к": "k", "м": "m", "в": "b",
# Cyrillic uppercase
"А": "A", "В": "B", "Е": "E", "К": "K", "М": "M", "Н": "H", "О": "O",
"Р": "P", "С": "C", "Т": "T", "У": "Y", "Х": "X", "Ѕ": "S", "І": "I",
"Ј": "J",
# Greek
"α": "a", "ε": "e", "ο": "o", "ρ": "p", "τ": "t", "ν": "v", "κ": "k",
"Α": "A", "Β": "B", "Ε": "E", "Ζ": "Z", "Η": "H", "Ι": "I", "Κ": "K",
"Μ": "M", "Ν": "N", "Ο": "O", "Ρ": "P", "Τ": "T", "Υ": "Y", "Χ": "X",
}
def normalize(text: str) -> str:
text = unicodedata.normalize("NFKC", text)
text = "".join(ch for ch in text if ord(ch) not in ZERO_WIDTH)
text = "".join(CONFUSABLES.get(ch, ch) for ch in text)
return text
if __name__ == "__main__":
sys.stdout.write(normalize(sys.stdin.read()))