1 files changed, 0 insertions, 99 deletions
diff --git a/.ai/scripts/drill-deck-diff-ids.py b/.ai/scripts/drill-deck-diff-ids.py
deleted file mode 100755
index bd2c4cc..0000000
--- a/.ai/scripts/drill-deck-diff-ids.py
+++ /dev/null
@@ -1,99 +0,0 @@
-#!/usr/bin/env python3
-"""SRS-state preservation check between two versions of an org-drill deck.
-
-Extracts every :ID: from each version and reports IDs that disappeared
-or appeared. Disappeared IDs lose org-drill SRS state (review history,
-ease, intervals) and are the worst-case bug from a deck rewrite. Appeared
-IDs are usually fine (new cards added on purpose) but worth surfacing.
-
-Exits 0 when clean, 1 when any IDs disappeared or appeared.
-
-Usage:
-  drill-deck-diff-ids.py <before.org> <after.org>
-"""
-from __future__ import annotations
-
-import re
-import sys
-from pathlib import Path
-
-CARD_RE = re.compile(r"^\*\*\s+(.+?)\s+:drill:\s*$")
-ID_RE = re.compile(r"^\s*:ID:\s+(\S+)\s*$")
-
-
-def card_id_map(path: Path) -> dict[str, str]:
-    """Return {id -> heading} for every :drill: card in path."""
-    result: dict[str, str] = {}
-    lines = path.read_text(encoding="utf-8").splitlines()
-    i = 0
-    while i < len(lines):
-        m = CARD_RE.match(lines[i])
-        if m:
-            heading = m.group(1).strip()
-            i += 1
-            while i < len(lines):
-                line = lines[i]
-                if line.startswith("* ") or CARD_RE.match(line):
-                    break
-                mid = ID_RE.match(line)
-                if mid:
-                    result[mid.group(1)] = heading
-                    break
-                i += 1
-            continue
-        i += 1
-    return result
-
-
-def main() -> int:
-    if len(sys.argv) != 3:
-        print(f"usage: {sys.argv[0]} <before.org> <after.org>", file=sys.stderr)
-        return 2
-
-    before_path = Path(sys.argv[1]).expanduser().resolve()
-    after_path = Path(sys.argv[2]).expanduser().resolve()
-
-    for p in (before_path, after_path):
-        if not p.is_file():
-            print(f"error: {p} not found", file=sys.stderr)
-            return 2
-
-    before = card_id_map(before_path)
-    after = card_id_map(after_path)
-
-    before_ids = set(before)
-    after_ids = set(after)
-
-    preserved = before_ids & after_ids
-    disappeared = before_ids - after_ids
-    appeared = after_ids - before_ids
-
-    print(f"drill-deck-diff-ids: {before_path.name} → {after_path.name}")
-    print()
-    print(f"IDs in BEFORE: {len(before_ids)}")
-    print(f"IDs in AFTER: {len(after_ids)}")
-    print(f"Preserved: {len(preserved)}")
-    print(f"Disappeared: {len(disappeared)}")
-    print(f"Appeared: {len(appeared)}")
-    print()
-
-    warnings = 0
-    if disappeared:
-        warnings += 1
-        print(f"WARN: {len(disappeared)} card IDs disappeared (SRS state lost)")
-        for cid in sorted(disappeared):
-            print(f"      - {cid} (was: {before[cid]!r})")
-    if appeared:
-        warnings += 1
-        print(f"NOTE: {len(appeared)} new card IDs appeared")
-        for cid in sorted(appeared):
-            print(f"      - {cid} (now: {after[cid]!r})")
-
-    if warnings == 0:
-        print("clean — SRS state preserved")
-        return 0
-    return 1
-
-
-if __name__ == "__main__":
-    raise SystemExit(main())