Haiku 4.5's October 15 Floor Has Passed, but No Stop Date Has Been Set

{
  "fetched": "2026-10-27",
  "source": "platform.claude.com/docs/en/about-claude/model-deprecations",
  "notice_days": 60,
  "models": {
    "claude-3-haiku-20240307":    {"status": "retired",    "date": "2026-04-20"},
    "claude-opus-4-1-20250805":   {"status": "retired",    "date": "2026-08-05"},
    "claude-sonnet-4-5-20250929": {"status": "deprecated", "date": "2026-11-30"},
    "claude-opus-4-5-20251101":   {"status": "active",     "date": "2026-11-24"},
    "claude-haiku-4-5-20251001":  {"status": "active",     "date": "2026-10-15"},
    "claude-sonnet-4-6":          {"status": "active",     "date": "2027-02-17"}
  }
}

#!/usr/bin/env python3
"""retirement_audit.py — 書かれているモデル ID を、廃止表の「状態」と「日付の意味」で仕分ける。
使い方: python3 retirement_audit.py <dir> --table retirement_table.json [--today YYYY-MM-DD]
終了コード: 0=要対応なし / 1=退役済み・退役予定あり / 2=表が古い（判定を信用しない）
"""
import re, sys, json, pathlib, datetime as dt, collections
 
ID_RE = re.compile(r"claude-(?:sonnet|opus|haiku|fable)(?:-\d+){1,3}(?:-\d{8})?(?![\w.])"
                   r"|claude-3(?:-[57])?-(?:sonnet|haiku)(?:-\d{8})?(?![\w.])")
FENCE = re.compile(r"```.*?```", re.S)
SKIP = {"node_modules", ".git", ".next", "dist"}
 
def classify(entry, today, notice_days):
    """返り値: (区分, 日数)。active の日付は『これより早くは終わらない下限』であって予定日ではない。"""
    d = dt.date.fromisoformat(entry["date"])
    left = (d - today).days
    if entry["status"] == "retired":
        return "RETIRED", left
    if entry["status"] == "deprecated":
        return ("RETIRED" if left <= 0 else "DEPRECATED"), left
    # active: 告知が無い限り、今日から数えて notice_days 日より前には止まらない
    earliest = max(d, today + dt.timedelta(days=notice_days))
    if left < 0:
        return "FLOOR_PASSED", (earliest - today).days   # 下限は過ぎた。止まるのは早くても告知の60日後
    return ("FLOOR_NEAR" if left <= notice_days else "OK"), left
 
def scan(root, table, today):
    models, notice = table["models"], table["notice_days"]
    seen = collections.defaultdict(lambda: {"any": set(), "code": set()})
    for p in pathlib.Path(root).rglob("*"):
        if not p.is_file() or p.suffix not in {".mdx", ".md", ".py", ".ts", ".js", ".mjs", ".json", ".yaml", ".yml", ".sh"}:
            continue
        if SKIP & set(p.parts):
            continue
        t = p.read_text(encoding="utf-8", errors="ignore")
        code = "\n".join(FENCE.findall(t)) if p.suffix in {".mdx", ".md"} else t
        for m in ID_RE.finditer(t):
            seen[m.group(0)]["any"].add(str(p))
        for m in ID_RE.finditer(code):
            seen[m.group(0)]["code"].add(str(p))
    rows = []
    for mid, f in seen.items():
        if mid in models:
            cls, n = classify(models[mid], today, notice)
        else:
            cls, n = "NOT_IN_TABLE", None
        rows.append({"id": mid, "class": cls, "days": n, "files": len(f["any"]), "code_files": len(f["code"])})
    return rows
 
def main():
    root = sys.argv[1]
    table = json.load(open(sys.argv[sys.argv.index("--table") + 1]))
    today = dt.date.fromisoformat(sys.argv[sys.argv.index("--today") + 1]) if "--today" in sys.argv else dt.date.today()
    age = (today - dt.date.fromisoformat(table["fetched"])).days
    if age > 14:
        print(f"STALE: 廃止表の取得から {age} 日。公式ページを開き直してください"); sys.exit(2)
    rows = scan(root, table, today)
    order = ["RETIRED", "DEPRECATED", "FLOOR_PASSED", "FLOOR_NEAR", "NOT_IN_TABLE", "OK"]
    rows.sort(key=lambda r: (order.index(r["class"]), -r["code_files"]))
    for r in rows:
        if r["class"] == "NOT_IN_TABLE":
            continue
        d = "" if r["days"] is None else f'{r["days"]:+d}d'
        print(f'{r["class"]:<13}{r["id"]:<30}any={r["files"]:<4}code={r["code_files"]:<4}{d}')
    bad = sum(r["code_files"] for r in rows if r["class"] in ("RETIRED", "DEPRECATED"))
    sys.exit(1 if bad else 0)
 
if __name__ == "__main__":
    main()

RETIRED      claude-3-5-sonnet-20241022    any=12  code=11  -364d
RETIRED      claude-opus-4-1-20250805      any=2   code=2   -83d
RETIRED      claude-sonnet-4-20250514      any=3   code=2   -134d
RETIRED      claude-3-haiku-20240307       any=1   code=1   -190d
DEPRECATED   claude-sonnet-4-5-20250929    any=6   code=5   +34d
FLOOR_PASSED claude-haiku-4-5-20251001     any=76  code=74  +60d
FLOOR_NEAR   claude-opus-4-5-20251101      any=1   code=1   +28d
OK           claude-sonnet-4-6             any=196 code=183 +113d
OK           claude-opus-4-6               any=62  code=53  +101d

import datetime as dt
from retirement_audit import classify
 
D = dt.date
def test_active_floor_passed_is_not_retired():
    e = {"status": "active", "date": "2026-10-15"}
    cls, days = classify(e, D(2026, 10, 27), 60)
    assert cls == "FLOOR_PASSED" and days == 60      # 告知が今日出ても、止まるのは早くて60日後
 
def test_floor_near_and_ok():
    assert classify({"status": "active", "date": "2026-11-24"}, D(2026, 10, 27), 60)[0] == "FLOOR_NEAR"
    assert classify({"status": "active", "date": "2027-02-17"}, D(2026, 10, 27), 60)[0] == "OK"
 
def test_deprecated_and_retired():
    assert classify({"status": "deprecated", "date": "2026-11-30"}, D(2026, 10, 27), 60) == ("DEPRECATED", 34)
    assert classify({"status": "deprecated", "date": "2026-11-30"}, D(2026, 12, 1), 60)[0] == "RETIRED"
    assert classify({"status": "retired", "date": "2026-08-05"}, D(2026, 10, 27), 60)[0] == "RETIRED"
 
if __name__ == "__main__":
    for n, f in list(globals().items()):
        if n.startswith("test_"):
            f(); print("ok", n)

#!/bin/bash
# 夜間に回す薄い入口。終了コードを人間向けの一行に直す
set -u
ROOT="${1:?対象ディレクトリ}"; TABLE="${2:?廃止表 JSON}"
python3 "$(dirname "$0")/retirement_audit.py" "$ROOT" --table "$TABLE" > /tmp/retirement_audit.out 2>&1
rc=$?
case $rc in
  0) echo "[retirement] 要対応なし" ;;
  1) echo "[retirement] 退役済み・退役予定の ID あり:"; grep -E '^(RETIRED|DEPRECATED)' /tmp/retirement_audit.out ;;
  2) echo "[retirement] 廃止表が古い。公式ページを確認して fetched を更新してください" ;;
  *) echo "[retirement] 想定外の終了コード $rc"; cat /tmp/retirement_audit.out ;;
esac
exit $rc