diff --git a/README.md b/README.md
index 4c782933..b56cb4dc 100644
--- a/README.md
+++ b/README.md
@@ -88,7 +88,7 @@ CER unless stated).
 | model | task | size | headline metric |
 |---|---|---|---|
 | `ara-diac-2.0` | Arabic diacritization | 2.78 GB fp32 | SadeedDiac-25 DER **2.29%** (beats GLM-5.2 2.69); WikiNews-2024 17.38 WER |
-| `ara-diac-news-1.1` | Arabic news register | 2.16 GB fp32 | WikiNews multiref 8.85 WER |
+| ~~`ara-diac-news-1.1`~~ | Arabic news register | — | **WITHDRAWN** — artifact lost (never shipped; WO87). `ara-diac-2.0` covers the register |
 | `ara-diac-small-2.1` | Arabic, fast tier | 1.42 GB fp32 | fullset DER 4.57 (teacher 2.29) |
 | `ara-diac-plane-large-1.0` | Arabic, int8 fast tier | 0.87 GB int8 | DER 2.74 / WER 8.61 |
 | `urd-diac-base-1.0` | Urdu diacritization | 1.35 GB fp16 | CER **3.57%** |
diff --git a/docs/naming/README.md b/docs/naming/README.md
new file mode 100644
index 00000000..caa67ac5
--- /dev/null
+++ b/docs/naming/README.md
@@ -0,0 +1,29 @@
+# Target documentation — WO87 evidence (2026-10-24)
+
+`target-documentation.json`: every index id decoded through the
+reference loader with a per-language probe — the evidence for
+target-accurate naming.
+
+## Verified target families
+
+| family | ids | output sample |
+|---|---|---|
+| Arab-vocalized (diac) | ara-diac-*, urd-diac-* | 'السَّلَامُ عَلَيْكُمْ' |
+| Heb-vocalized (nikud) | heb-diac-* (except plane: load ERROR) | 'שָׁלוֹם' |
+| Thai-phonemic (toned, dots) | tha-g2p-* , tha-phonemic-1.0 | 'sa˨˩.wat̚˨˩.diː˧' |
+| IPA (narrow, stress) | urd-g2p-* | 'ɪst̪ɪqˈbaːl' |
+| Latin-letter phonemic | fas-g2p-1.0 | 'salAm' |
+| Latin romanization | khm-latn-1.0 | 'suostei' |
+
+## Defects found by the sweep
+
+1. **ara-diac-news-1.1: artifact LOST** — index/release 404; bytes
+   exist nowhere (bucket zip is news-1.0's, sha differs). Withdrawn in
+   models.yaml; restore = re-export from run-029 best as a new version.
+2. **Plane family non-contract** (ara-diac-plane-1.0,
+   ara-diac-plane-large-1.0, heb-diac-plane-1.0/2.0): zips fail the IMF
+   v1 file contract ("missing required file: encoder.onnx") — pre-
+   standard layout. Re-export or mark legacy-incompatible.
+3. **ara-diac-small-1.0-int8 output corruption**: spurious 'F' tokens
+   ('...عَلَيْكُمْFمْF') — quantization-era artifact; superseded by the
+   2.x line anyway.
diff --git a/docs/naming/target-documentation.json b/docs/naming/target-documentation.json
new file mode 100644
index 00000000..074d2818
--- /dev/null
+++ b/docs/naming/target-documentation.json
@@ -0,0 +1,475 @@
+{
+  "ara-diac-1.0": {
+    "probe": "السلام عليكم",
+    "output": "السَّلَامُ عَلَيْكُمْ",
+    "chars": [
+      " ",
+      "ا",
+      "س",
+      "ع",
+      "ك",
+      "ل",
+      "م",
+      "ي",
+      "َ",
+      "ُ",
+      "ّ",
+      "ْ"
+    ]
+  },
+  "ara-diac-2.0": {
+    "probe": "السلام عليكم",
+    "output": "السَّلَامُ عَلَيْكُمْ",
+    "chars": [
+      " ",
+      "ا",
+      "س",
+      "ع",
+      "ك",
+      "ل",
+      "م",
+      "ي",
+      "َ",
+      "ُ",
+      "ّ",
+      "ْ"
+    ]
+  },
+  "ara-diac-2.0-int8": {
+    "probe": "السلام عليكم",
+    "output": "السَّلَامُ عَلَيْكُمْ",
+    "chars": [
+      " ",
+      "ا",
+      "س",
+      "ع",
+      "ك",
+      "ل",
+      "م",
+      "ي",
+      "َ",
+      "ُ",
+      "ّ",
+      "ْ"
+    ]
+  },
+  "ara-diac-layerdrop-1.0": {
+    "probe": "السلام عليكم",
+    "output": "السَّلَامُ عَلَيْكُمْ",
+    "chars": [
+      " ",
+      "ا",
+      "س",
+      "ع",
+      "ك",
+      "ل",
+      "م",
+      "ي",
+      "َ",
+      "ُ",
+      "ّ",
+      "ْ"
+    ]
+  },
+  "ara-diac-layerdrop-1.0-int4": {
+    "probe": "السلام عليكم",
+    "output": "السَّلَامُ عَلَيْكُمْ",
+    "chars": [
+      " ",
+      "ا",
+      "س",
+      "ع",
+      "ك",
+      "ل",
+      "م",
+      "ي",
+      "َ",
+      "ُ",
+      "ّ",
+      "ْ"
+    ]
+  },
+  "ara-diac-layerdrop-1.0-int8": {
+    "probe": "السلام عليكم",
+    "output": "السَّلَامُ عَلَيْكُمْ",
+    "chars": [
+      " ",
+      "ا",
+      "س",
+      "ع",
+      "ك",
+      "ل",
+      "م",
+      "ي",
+      "َ",
+      "ُ",
+      "ّ",
+      "ْ"
+    ]
+  },
+  "ara-diac-news-1.0": {
+    "probe": "السلام عليكم",
+    "output": "السَّلَامُ عَلَيْكُمْ",
+    "chars": [
+      " ",
+      "ا",
+      "س",
+      "ع",
+      "ك",
+      "ل",
+      "م",
+      "ي",
+      "َ",
+      "ُ",
+      "ّ",
+      "ْ"
+    ]
+  },
+  "ara-diac-news-1.1": {
+    "error": "<HTTPError 404: 'Not Found'>"
+  },
+  "ara-diac-plane-1.0": {
+    "error": "ModelFormatError('missing required file: encoder.onnx')"
+  },
+  "ara-diac-plane-large-1.0": {
+    "error": "ModelFormatError('missing required file: encoder.onnx')"
+  },
+  "ara-diac-small-1.0": {
+    "probe": "السلام عليكم",
+    "output": "السَّلَامُ عَلَيْكُمْ",
+    "chars": [
+      " ",
+      "ا",
+      "س",
+      "ع",
+      "ك",
+      "ل",
+      "م",
+      "ي",
+      "َ",
+      "ُ",
+      "ّ",
+      "ْ"
+    ]
+  },
+  "ara-diac-small-1.0-int8": {
+    "probe": "السلام عليكم",
+    "output": "السَّلَامُ عَلَيْكُمْFمْF",
+    "chars": [
+      " ",
+      "F",
+      "ا",
+      "س",
+      "ع",
+      "ك",
+      "ل",
+      "م",
+      "ي",
+      "َ",
+      "ُ",
+      "ّ",
+      "ْ"
+    ]
+  },
+  "ara-diac-small-2.0": {
+    "probe": "السلام عليكم",
+    "output": "السَّلَامُ عَلَيْكُمْ",
+    "chars": [
+      " ",
+      "ا",
+      "س",
+      "ع",
+      "ك",
+      "ل",
+      "م",
+      "ي",
+      "َ",
+      "ُ",
+      "ّ",
+      "ْ"
+    ]
+  },
+  "ara-diac-small-2.0-int8": {
+    "probe": "السلام عليكم",
+    "output": "السَّلَامُ عَلَيْكُمْ",
+    "chars": [
+      " ",
+      "ا",
+      "س",
+      "ع",
+      "ك",
+      "ل",
+      "م",
+      "ي",
+      "َ",
+      "ُ",
+      "ّ",
+      "ْ"
+    ]
+  },
+  "ara-diac-small-2.1": {
+    "probe": "السلام عليكم",
+    "output": "السَّلَامُ عَلَيْكُمْ",
+    "chars": [
+      " ",
+      "ا",
+      "س",
+      "ع",
+      "ك",
+      "ل",
+      "م",
+      "ي",
+      "َ",
+      "ُ",
+      "ّ",
+      "ْ"
+    ]
+  },
+  "ara-diac-small-2.1-fp16": {
+    "probe": "السلام عليكم",
+    "output": "السَّلَامُ عَلَيْكُمْ",
+    "chars": [
+      " ",
+      "ا",
+      "س",
+      "ع",
+      "ك",
+      "ل",
+      "م",
+      "ي",
+      "َ",
+      "ُ",
+      "ّ",
+      "ْ"
+    ]
+  },
+  "ara-diac-small-2.1-int8": {
+    "probe": "السلام عليكم",
+    "output": "السَّلَامُ عَلَيْكُمْ",
+    "chars": [
+      " ",
+      "ا",
+      "س",
+      "ع",
+      "ك",
+      "ل",
+      "م",
+      "ي",
+      "َ",
+      "ُ",
+      "ّ",
+      "ْ"
+    ]
+  },
+  "ara-diac-small-int8static-2.1": {
+    "probe": "السلام عليكم",
+    "output": "السَّلَامُ عَلَيْكُمْ",
+    "chars": [
+      " ",
+      "ا",
+      "س",
+      "ع",
+      "ك",
+      "ل",
+      "م",
+      "ي",
+      "َ",
+      "ُ",
+      "ّ",
+      "ْ"
+    ]
+  },
+  "fas-diac-base-1.0": {
+    "probe": "سلام",
+    "output": "سَلام",
+    "chars": [
+      "ا",
+      "س",
+      "ل",
+      "م",
+      "َ"
+    ]
+  },
+  "fas-g2p-1.0": {
+    "probe": "سلام",
+    "output": "salAm",
+    "chars": [
+      "A",
+      "a",
+      "l",
+      "m",
+      "s"
+    ]
+  },
+  "heb-diac-1.0": {
+    "probe": "שלום",
+    "output": "שָׁלוֹם",
+    "chars": [
+      "ָ",
+      "ֹ",
+      "ׁ",
+      "ו",
+      "ל",
+      "ם",
+      "ש"
+    ]
+  },
+  "heb-diac-1.1": {
+    "probe": "שלום",
+    "output": "שָׁלוֹם",
+    "chars": [
+      "ָ",
+      "ֹ",
+      "ׁ",
+      "ו",
+      "ל",
+      "ם",
+      "ש"
+    ]
+  },
+  "heb-diac-plane-1.0": {
+    "error": "ModelFormatError('missing required file: encoder.onnx')"
+  },
+  "heb-diac-plane-2.0": {
+    "error": "ModelFormatError('missing required file: encoder.onnx')"
+  },
+  "heb-diac-small-1.0": {
+    "probe": "שלום",
+    "output": "שָׁלוֹם",
+    "chars": [
+      "ָ",
+      "ֹ",
+      "ׁ",
+      "ו",
+      "ל",
+      "ם",
+      "ש"
+    ]
+  },
+  "khm-latn-1.0": {
+    "probe": "សួស្តី",
+    "output": "suostei",
+    "chars": [
+      "e",
+      "i",
+      "o",
+      "s",
+      "t",
+      "u"
+    ]
+  },
+  "tha-g2p-base-1.0": {
+    "probe": "สวัสดี",
+    "output": "sa˨˩.wat̚˨˩.diː˧",
+    "chars": [
+      ".",
+      "a",
+      "d",
+      "i",
+      "s",
+      "t",
+      "w",
+      "ː",
+      "˧",
+      "˨",
+      "˩",
+      "̚"
+    ]
+  },
+  "tha-g2p-small-1.0": {
+    "probe": "สวัสดี",
+    "output": "sa˨˩.wat̚˨˩.sa˨˩.diː˧",
+    "chars": [
+      ".",
+      "a",
+      "d",
+      "i",
+      "s",
+      "t",
+      "w",
+      "ː",
+      "˧",
+      "˨",
+      "˩",
+      "̚"
+    ]
+  },
+  "tha-g2p-small-1.0-int4": {
+    "probe": "สวัสดี",
+    "output": "sa˨˩.wat̚˨˩.diː˧",
+    "chars": [
+      ".",
+      "a",
+      "d",
+      "i",
+      "s",
+      "t",
+      "w",
+      "ː",
+      "˧",
+      "˨",
+      "˩",
+      "̚"
+    ]
+  },
+  "urd-diac-1.0": {
+    "probe": "استقبال",
+    "output": "اِسْتْقِبْالْ",
+    "chars": [
+      "ا",
+      "ب",
+      "ت",
+      "س",
+      "ق",
+      "ل",
+      "ِ",
+      "ْ"
+    ]
+  },
+  "urd-diac-base-1.0": {
+    "probe": "استقبال",
+    "output": "اِسْتْقِبْالْ",
+    "chars": [
+      "ا",
+      "ب",
+      "ت",
+      "س",
+      "ق",
+      "ل",
+      "ِ",
+      "ْ"
+    ]
+  },
+  "urd-g2p-1.0": {
+    "probe": "استقبال",
+    "output": "ɪst̪ɪqˈbaːl",
+    "chars": [
+      "a",
+      "b",
+      "l",
+      "q",
+      "s",
+      "t",
+      "ɪ",
+      "ˈ",
+      "ː",
+      "̪"
+    ]
+  },
+  "urd-g2p-base-1.0": {
+    "probe": "استقبال",
+    "output": "ɪst̪ɪqˈbaːl",
+    "chars": [
+      "a",
+      "b",
+      "l",
+      "q",
+      "s",
+      "t",
+      "ɪ",
+      "ˈ",
+      "ː",
+      "̪"
+    ]
+  }
+}
\ No newline at end of file
diff --git a/models.yaml b/models.yaml
index 2cfad307..3688bd66 100644
--- a/models.yaml
+++ b/models.yaml
@@ -1,4 +1,15 @@
 version: 1
+
+# WO87 target-accurate renames (evidence: docs/naming/target-documentation.json).
+# Old ids stay resolvable via index aliases at the next index tag (zero breakage).
+renames:
+  urd-g2p-1.0: urd-ipa-1.0                 # narrow IPA with stress (2026-10-24 decode evidence)
+  urd-g2p-base-1.0: urd-ipa-base-1.0       # narrow IPA with stress
+  fas-g2p-1.0: fas-phonemic-1.0            # Latin-letter phonemic (salAm)
+  tha-g2p-base-1.0: tha-phonemic-base-1.0  # toned phonemic, dot-separated
+  tha-g2p-small-1.0: tha-phonemic-small-1.0
+  tha-g2p-small-1.0-int4: tha-phonemic-small-1.0-int4
+
 models:
   tha-phonemic-1.0:
     task: g2p
@@ -722,6 +733,12 @@ models:
     - Arab
     precision: fp32
     filename: ara-diac-news-1.1.zip
+    status: withdrawn
+    withdraw_note: >-
+      artifact lost — the release was never created and the bytes exist nowhere
+      (bucket sha 280f6be9 is news-1.0's; WO87 evidence 2026-10-24). Restore
+      via re-export from run-029-news-specialist/best as a new version if
+      wanted.
     url: https://github.com/interscript/interscript-models/releases/download/ara-diac-news-1.1/ara-diac-news-1.1.zip
     sha256: 2f55e2a3c9e97da3666ef236e8ba31a24399257c9cc448363cc19f96541eb3ba
     size: 2160091218