diff --git a/agent/fc_agent/worker.py b/agent/fc_agent/worker.py
index 9c8db2d..2601d7e 100644
--- a/agent/fc_agent/worker.py
+++ b/agent/fc_agent/worker.py
@@ -265,6 +265,8 @@ class Worker:
         self._embedder = None
         self._embedder_lock = threading.Lock()
         self._proposers = None
+        self._proposers_sig = None    # detector-config signature the current
+        #                               proposers were built for (#134)
         self._proposers_lock = threading.Lock()
 
     # --- held-lease bookkeeping --------------------------------------------
@@ -796,14 +798,52 @@ class Worker:
                 self._embedder = CropEmbedder(model_name, self.cfg.embed_dtype)
         return self._embedder
 
-    def _ensure_proposers(self):
-        if self._proposers is not None:
-            return self._proposers
+    def _effective_cfg(self, det: dict | None):
+        """The detector config for a job: the LEASE-ANNOUNCED block (the DB/UI
+        source of truth, #134) overlaid on the env cfg, or the env cfg unchanged
+        when the server announced nothing (bootstrap / older backend). An enabled
+        toggle off maps to empty weights — the 'weights == "" → proposer skipped'
+        contract in detectors.py. detector_level + ccip_model stay env (separate
+        settings, not part of the crop-proposer config)."""
+        if not det:
+            return self.cfg
+
+        def _w(p: str) -> str:
+            slot = det.get(p) or {}
+            return (slot.get("weights") or "") if slot.get("enabled", True) else ""
+
+        from dataclasses import replace
+        return replace(
+            self.cfg,
+            person_weights=_w("person"),
+            person_conf=float(det["person"]["conf"]),
+            anatomy_weights=_w("anatomy"),
+            anatomy_conf=float(det["anatomy"]["conf"]),
+            panel_weights=_w("panel"),
+            panel_conf=float(det["panel"]["conf"]),
+            max_figures=int(det["max_figures"]),
+            max_components=int(det["max_components"]),
+            max_panels=int(det["max_panels"]),
+            max_regions=int(det["max_regions"]),
+            dedupe_iou=float(det["dedupe_iou"]),
+        )
+
+    def _proposers_for(self, eff):
+        """Proposers built from the effective detector config, rebuilt ONLY when
+        that config changes — so an operator's UI edit takes effect on the next
+        lease with no restart, and steady-state reuses the loaded YOLO models."""
+        sig = (
+            eff.person_weights, eff.person_conf,
+            eff.anatomy_weights, eff.anatomy_conf,
+            eff.panel_weights, eff.panel_conf,
+            eff.max_figures, eff.max_components, eff.max_panels,
+        )
         with self._proposers_lock:
-            if self._proposers is None:
+            if self._proposers is None or self._proposers_sig != sig:
                 from .detectors import Proposers
-                self._proposers = Proposers(self.cfg)
-        return self._proposers
+                self._proposers = Proposers(eff)
+                self._proposers_sig = sig
+            return self._proposers
 
     def _consume(self, job: dict, frames: list, stop_evt: threading.Event) -> bool:
         """Detect + embed the decoded frames and submit the result. Returns True
@@ -856,7 +896,8 @@ class Worker:
                 else ["figure", "face", "concept", "panel"]
             )
             embedder = self._ensure_embedder(model_name) if want_siglip else None
-            proposers = self._ensure_proposers()
+            eff = self._effective_cfg(job.get("detectors"))
+            proposers = self._proposers_for(eff)
 
             regions = []
             ccip_ev = self.cfg.ccip_model or "ccip-default"
@@ -922,7 +963,7 @@ class Worker:
                         # we never SigLIP the same region twice — saves GPU and a
                         # slot against max_regions. High-IoU + kind-aware, so
                         # intentional nested crops (figure ⊃ head) survive.
-                        pending = dedupe_crops(pending, self.cfg.dedupe_iou)
+                        pending = dedupe_crops(pending, eff.dedupe_iou)
                         vecs = embedder.embed_batch([c for c, _ in pending])
                         for (_c, tmpl), vec in zip(pending, vecs, strict=True):
                             tmpl["siglip_embedding"] = vec
@@ -932,7 +973,7 @@ class Worker:
                     # mp4, 64 sampled frames × ~32 regions) would otherwise burn
                     # ~38s of GPU across every frame before the submit is even
                     # truncated. Bounds the WORK, not just the POST body.
-                    if len(regions) >= self.cfg.max_regions:
+                    if len(regions) >= eff.max_regions:
                         break
 
             # A Stop mid-frame-loop leaves partial regions — don't submit those;
diff --git a/alembic/versions/0078_ml_settings_detectors.py b/alembic/versions/0078_ml_settings_detectors.py
new file mode 100644
index 0000000..6d04601
--- /dev/null
+++ b/alembic/versions/0078_ml_settings_detectors.py
@@ -0,0 +1,83 @@
+"""ml_settings crop-proposer / detector config (#134)
+
+Move the WHERE-to-crop detector config (per-proposer enable + weights + conf,
+plus caps + dedupe IoU) into the DB so it's UI-tunable and announced to the GPU
+agent in the lease (like the embedder model) — no restart, agent env is now
+bootstrap-only. All server_defaults are the working values so existing rows +
+fresh installs crop out-of-the-box with all three proposers ON.
+
+Revision ID: 0078
+Revises: 0077
+Create Date: 2026-07-05
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0078"
+down_revision: Union[str, None] = "0077"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+_ANATOMY_DEFAULT = (
+    "https://github.com/aperveyev/booru_yolo/raw/main/models/yolov11m_aa22.pt"
+)
+_PANEL_DEFAULT = "mosesb/best-comic-panel-detection::best.pt"
+
+
+def upgrade() -> None:
+    op.add_column("ml_settings", sa.Column(
+        "detector_person_enabled", sa.Boolean(), nullable=False,
+        server_default=sa.true()))
+    op.add_column("ml_settings", sa.Column(
+        "detector_person_weights", sa.String(512), nullable=False,
+        server_default="yolo11n.pt"))
+    op.add_column("ml_settings", sa.Column(
+        "detector_person_conf", sa.Float(), nullable=False,
+        server_default=sa.text("0.35")))
+    op.add_column("ml_settings", sa.Column(
+        "detector_anatomy_enabled", sa.Boolean(), nullable=False,
+        server_default=sa.true()))
+    op.add_column("ml_settings", sa.Column(
+        "detector_anatomy_weights", sa.String(512), nullable=False,
+        server_default=_ANATOMY_DEFAULT))
+    op.add_column("ml_settings", sa.Column(
+        "detector_anatomy_conf", sa.Float(), nullable=False,
+        server_default=sa.text("0.30")))
+    op.add_column("ml_settings", sa.Column(
+        "detector_panel_enabled", sa.Boolean(), nullable=False,
+        server_default=sa.true()))
+    op.add_column("ml_settings", sa.Column(
+        "detector_panel_weights", sa.String(512), nullable=False,
+        server_default=_PANEL_DEFAULT))
+    op.add_column("ml_settings", sa.Column(
+        "detector_panel_conf", sa.Float(), nullable=False,
+        server_default=sa.text("0.30")))
+    op.add_column("ml_settings", sa.Column(
+        "detector_max_figures", sa.Integer(), nullable=False,
+        server_default=sa.text("8")))
+    op.add_column("ml_settings", sa.Column(
+        "detector_max_components", sa.Integer(), nullable=False,
+        server_default=sa.text("8")))
+    op.add_column("ml_settings", sa.Column(
+        "detector_max_panels", sa.Integer(), nullable=False,
+        server_default=sa.text("8")))
+    op.add_column("ml_settings", sa.Column(
+        "detector_max_regions", sa.Integer(), nullable=False,
+        server_default=sa.text("128")))
+    op.add_column("ml_settings", sa.Column(
+        "detector_dedupe_iou", sa.Float(), nullable=False,
+        server_default=sa.text("0.85")))
+
+
+def downgrade() -> None:
+    for col in (
+        "detector_person_enabled", "detector_person_weights", "detector_person_conf",
+        "detector_anatomy_enabled", "detector_anatomy_weights", "detector_anatomy_conf",
+        "detector_panel_enabled", "detector_panel_weights", "detector_panel_conf",
+        "detector_max_figures", "detector_max_components", "detector_max_panels",
+        "detector_max_regions", "detector_dedupe_iou",
+    ):
+        op.drop_column("ml_settings", col)
diff --git a/backend/app/api/gpu.py b/backend/app/api/gpu.py
index c6e0cd8..44a7aac 100644
--- a/backend/app/api/gpu.py
+++ b/backend/app/api/gpu.py
@@ -269,6 +269,33 @@ async def lease():
             ).scalars()
         } if ids else {}
         await session.commit()
+        # Crop-proposer config, announced FROM THE SETTING like embed_model_name
+        # (#134): the agent builds its detectors from this, rebuilding live when
+        # it changes — so tuning is a DB/UI edit, never an agent restart. Same
+        # block for every job in the batch (it's global), built once. An enabled
+        # toggle off is carried through so the agent skips that proposer.
+        detectors = {
+            "person": {
+                "enabled": ml.detector_person_enabled,
+                "weights": ml.detector_person_weights,
+                "conf": ml.detector_person_conf,
+            },
+            "anatomy": {
+                "enabled": ml.detector_anatomy_enabled,
+                "weights": ml.detector_anatomy_weights,
+                "conf": ml.detector_anatomy_conf,
+            },
+            "panel": {
+                "enabled": ml.detector_panel_enabled,
+                "weights": ml.detector_panel_weights,
+                "conf": ml.detector_panel_conf,
+            },
+            "max_figures": ml.detector_max_figures,
+            "max_components": ml.detector_max_components,
+            "max_panels": ml.detector_max_panels,
+            "max_regions": ml.detector_max_regions,
+            "dedupe_iou": ml.detector_dedupe_iou,
+        }
         out = []
         for j in jobs:
             img = imgs.get(j.image_record_id)
@@ -290,6 +317,7 @@ async def lease():
                 # re-embed, never an agent change.
                 "embed_model_name": ml.embedder_model_name,
                 "embed_version": ml.embedder_model_version,
+                "detectors": detectors,
             })
     return jsonify({"jobs": out})
 
diff --git a/backend/app/api/ml_admin.py b/backend/app/api/ml_admin.py
index 62fbc26..c146b70 100644
--- a/backend/app/api/ml_admin.py
+++ b/backend/app/api/ml_admin.py
@@ -8,6 +8,26 @@ from ..models import MLSettings
 ml_admin_bp = Blueprint("ml_admin", __name__, url_prefix="/api/ml")
 
 
+# Crop-proposer / detector config (#134). Announced to the GPU agent in the lease
+# → tunable here with no restart. weights = ultralytics name | URL | hf_repo::file
+# (empty, or enabled off, skips that proposer).
+_DETECTOR_FIELDS = (
+    "detector_person_enabled",
+    "detector_person_weights",
+    "detector_person_conf",
+    "detector_anatomy_enabled",
+    "detector_anatomy_weights",
+    "detector_anatomy_conf",
+    "detector_panel_enabled",
+    "detector_panel_weights",
+    "detector_panel_conf",
+    "detector_max_figures",
+    "detector_max_components",
+    "detector_max_panels",
+    "detector_max_regions",
+    "detector_dedupe_iou",
+)
+
 _EDITABLE = (
     "cpu_embed_enabled",
     "video_frame_interval_seconds",
@@ -21,6 +41,7 @@ _EDITABLE = (
     "ccip_auto_apply_threshold",
     "embedder_model_name",
     "embedder_model_version",
+    *_DETECTOR_FIELDS,
 )
 
 
@@ -76,6 +97,7 @@ async def get_settings():
             "ccip_auto_apply_enabled": s.ccip_auto_apply_enabled,
             "ccip_auto_apply_threshold": s.ccip_auto_apply_threshold,
             "embedder_model_name": s.embedder_model_name,
+            **{f: getattr(s, f) for f in _DETECTOR_FIELDS},
         }
     )
 
@@ -133,6 +155,19 @@ def _validate(p: dict) -> str | None:
     for key in ("embedder_model_name", "embedder_model_version"):
         if not str(p[key]).strip():
             return f"{key} must not be empty"
+    # Crop proposers (#134). Weights may be empty (that proposer is just off);
+    # confidences are probabilities; caps are positive counts; IoU is [0,1].
+    for key in ("detector_person_conf", "detector_anatomy_conf", "detector_panel_conf"):
+        if not (0.0 <= float(p[key]) <= 1.0):
+            return f"{key} must be between 0 and 1"
+    for key in (
+        "detector_max_figures", "detector_max_components",
+        "detector_max_panels", "detector_max_regions",
+    ):
+        if int(p[key]) < 1:
+            return f"{key} must be >= 1"
+    if not (0.0 <= float(p["detector_dedupe_iou"]) <= 1.0):
+        return "detector_dedupe_iou must be between 0 and 1"
     return None
 
 
diff --git a/backend/app/models/ml_settings.py b/backend/app/models/ml_settings.py
index a45cc3d..dfb97d5 100644
--- a/backend/app/models/ml_settings.py
+++ b/backend/app/models/ml_settings.py
@@ -91,6 +91,70 @@ class MLSettings(Base):
     embedder_model_name: Mapped[str] = mapped_column(
         String(128), nullable=False, default="google/siglip2-so400m-patch16-512"
     )
+    # -- Crop proposers / detectors (#1202, #134) --------------------------
+    # WHERE-to-crop YOLO detectors feeding the crop→SigLIP bag + CCIP. Config
+    # lives HERE (DB) and is announced to the GPU agent in the lease — same as
+    # the embedder model — so it is UI-tunable with NO restart, and the agent's
+    # env is bootstrap-only. Each weights spec is an ultralytics builtin name,
+    # an http(s) URL, or "hf_repo::file" (agent's _resolve). enabled off (or an
+    # empty weights) skips that proposer. All ON by default (operator 2026-07-05)
+    # so a fresh install crops out-of-the-box.
+    # person: general COCO figure detector for Western/realistic art the anime
+    # person-detector misses → NMS-merged with imgutils → CCIP + concept.
+    detector_person_enabled: Mapped[bool] = mapped_column(
+        Boolean, nullable=False, default=True
+    )
+    detector_person_weights: Mapped[str] = mapped_column(
+        String(512), nullable=False, default="yolo11n.pt"
+    )
+    detector_person_conf: Mapped[float] = mapped_column(
+        Float, nullable=False, default=0.35
+    )
+    # anatomy: booru_yolo anime/furry/NSFW torso components → concept crops.
+    # Default = yolov11m_aa22 (26 classes, best mAP50-95 0.96), committed in the
+    # upstream repo so the URL resolves. License UNSTATED — fine for a private
+    # homelab (operator accepted #1202).
+    detector_anatomy_enabled: Mapped[bool] = mapped_column(
+        Boolean, nullable=False, default=True
+    )
+    detector_anatomy_weights: Mapped[str] = mapped_column(
+        String(512), nullable=False,
+        default=(
+            "https://github.com/aperveyev/booru_yolo/raw/main/models/"
+            "yolov11m_aa22.pt"
+        ),
+    )
+    detector_anatomy_conf: Mapped[float] = mapped_column(
+        Float, nullable=False, default=0.30
+    )
+    # panel: comic page → panel regions → concept crops (Apache-2.0, YOLOv12x).
+    detector_panel_enabled: Mapped[bool] = mapped_column(
+        Boolean, nullable=False, default=True
+    )
+    detector_panel_weights: Mapped[str] = mapped_column(
+        String(512), nullable=False,
+        default="mosesb/best-comic-panel-detection::best.pt",
+    )
+    detector_panel_conf: Mapped[float] = mapped_column(
+        Float, nullable=False, default=0.30
+    )
+    # Per-frame caps bound the crop→embed explosion; max_regions is the hard
+    # per-job backstop; dedupe_iou drops near-duplicate crops before the embed.
+    detector_max_figures: Mapped[int] = mapped_column(
+        Integer, nullable=False, default=8
+    )
+    detector_max_components: Mapped[int] = mapped_column(
+        Integer, nullable=False, default=8
+    )
+    detector_max_panels: Mapped[int] = mapped_column(
+        Integer, nullable=False, default=8
+    )
+    detector_max_regions: Mapped[int] = mapped_column(
+        Integer, nullable=False, default=128
+    )
+    detector_dedupe_iou: Mapped[float] = mapped_column(
+        Float, nullable=False, default=0.85
+    )
     updated_at: Mapped[datetime] = mapped_column(
         DateTime(timezone=True), nullable=False, server_default=func.now()
     )
diff --git a/frontend/src/components/settings/CropProposersCard.vue b/frontend/src/components/settings/CropProposersCard.vue
new file mode 100644
index 0000000..46edd54
--- /dev/null
+++ b/frontend/src/components/settings/CropProposersCard.vue
@@ -0,0 +1,151 @@
+<template>
+  <MaintenanceTile
+    icon="mdi-crop"
+    title="Crop proposers (where to crop)"
+    blurb="Detectors that decide WHERE to crop each image before embedding — general figures, anime/furry anatomy, and comic panels — so a tag can ground to a region, not just the whole image."
+    :open="false"
+  >
+    <p class="fc-muted text-body-2 mb-4">
+      Each proposer finds regions that the crop → SigLIP bag scores alongside the
+      whole image; the best-scoring region is what grounds a tag. Weights accept
+      an <strong>ultralytics name</strong> (<code>yolo11n.pt</code>), a
+      <strong>URL</strong>, or <strong>hf_repo::file</strong>. Edits reach the GPU
+      agent on its next lease — no restart. After turning a proposer on, re-process
+      the library so existing images gain its regions.
+    </p>
+
+    <div v-for="p in proposers" :key="p.key" class="fc-proposer">
+      <div class="d-flex align-center mb-1" style="gap: 10px;">
+        <v-icon size="18" :color="p.on ? 'accent' : undefined">{{ p.icon }}</v-icon>
+        <span class="fc-section-h">{{ p.label }}</span>
+        <v-switch
+          v-model="p.on" :loading="busy" hide-details density="compact"
+          color="success" class="ml-auto"
+          @update:model-value="v => saveToggle(p, v)"
+        />
+      </div>
+      <p class="fc-muted text-body-2 mb-2">{{ p.help }}</p>
+      <div class="d-flex flex-wrap mb-4" style="gap: 12px;">
+        <v-text-field
+          v-model="p.weights" label="Weights" density="compact" hide-details
+          style="min-width: 300px; flex: 1;" :disabled="busy || !p.on"
+          placeholder="name | URL | hf_repo::file"
+          @change="save({ [`detector_${p.key}_weights`]: p.weights })"
+        />
+        <v-text-field
+          v-model.number="p.conf" label="Confidence" type="number"
+          min="0" max="1" step="0.05" density="compact" hide-details
+          style="max-width: 140px;" :disabled="busy || !p.on"
+          @change="save({ [`detector_${p.key}_conf`]: Number(p.conf) })"
+        />
+      </div>
+    </div>
+
+    <div class="fc-caps">
+      <div class="fc-section-h mb-1">Caps</div>
+      <p class="fc-muted text-body-2 mb-3">
+        Bound how many crops each image can produce — protects GPU time and
+        storage. Dedupe IoU drops near-duplicate crops before embedding.
+      </p>
+      <div class="d-flex flex-wrap" style="gap: 12px;">
+        <v-text-field
+          v-for="c in caps" :key="c.key"
+          v-model.number="c.val" :label="c.label" type="number"
+          :min="c.min" :max="c.max" :step="c.step || 1" density="compact"
+          hide-details style="max-width: 165px;" :disabled="busy"
+          @change="save({ [c.key]: Number(c.val) })"
+        />
+      </div>
+    </div>
+  </MaintenanceTile>
+</template>
+
+<script setup>
+import { toast } from '../../utils/toast.js'
+import { onMounted, ref } from 'vue'
+
+import MaintenanceTile from '../common/MaintenanceTile.vue'
+import { useMLStore } from '../../stores/ml.js'
+
+const mlSettings = useMLStore()
+const busy = ref(false)
+const proposers = ref([])
+const caps = ref([])
+
+// Static copy per proposer; the mutable state (on/weights/conf) is seeded from
+// settings on mount so the card reflects the live DB config (rule 26 — it works
+// untouched).
+const DEFS = [
+  {
+    key: 'person', label: 'Figures (person)', icon: 'mdi-account-outline',
+    help: 'General figure detector for the Western/realistic art the anime ' +
+      'detector misses → character identity + a whole-figure crop.',
+  },
+  {
+    key: 'anatomy', label: 'Anatomy (booru)', icon: 'mdi-dog-side',
+    help: 'Anime / furry / NSFW torso components (heads, busts, hips, …) → ' +
+      'localized concept crops.',
+  },
+  {
+    key: 'panel', label: 'Comic panels', icon: 'mdi-view-grid-outline',
+    help: 'Splits a comic page into its panels → one concept crop each.',
+  },
+]
+const CAP_DEFS = [
+  { key: 'detector_max_figures', label: 'Max figures', min: 1 },
+  { key: 'detector_max_components', label: 'Max components', min: 1 },
+  { key: 'detector_max_panels', label: 'Max panels', min: 1 },
+  { key: 'detector_max_regions', label: 'Max regions / job', min: 1 },
+  { key: 'detector_dedupe_iou', label: 'Dedupe IoU', min: 0, max: 1, step: 0.05 },
+]
+
+onMounted(async () => {
+  try { await mlSettings.loadSettings() } catch { /* non-fatal — defaults show */ }
+  const s = mlSettings.settings || {}
+  proposers.value = DEFS.map(d => ({
+    ...d,
+    on: !!s[`detector_${d.key}_enabled`],
+    weights: s[`detector_${d.key}_weights`] ?? '',
+    conf: s[`detector_${d.key}_conf`] ?? 0.3,
+  }))
+  caps.value = CAP_DEFS.map(c => ({ ...c, val: s[c.key] ?? 0 }))
+})
+
+async function save(patch, revert) {
+  busy.value = true
+  try {
+    await mlSettings.patchSettings(patch)
+    toast({ text: 'Saved', type: 'success' })
+  } catch (e) {
+    if (revert) revert()
+    toast({ text: `Could not save: ${e.message}`, type: 'error' })
+  } finally {
+    busy.value = false
+  }
+}
+
+function saveToggle (p, v) {
+  // Revert the switch on failure so it never lies about the persisted state.
+  save({ [`detector_${p.key}_enabled`]: !!v }, () => { p.on = !v })
+}
+</script>
+
+<style scoped>
+.fc-muted { color: rgb(var(--v-theme-on-surface-variant)); }
+.fc-section-h {
+  font-size: 13px; font-weight: 700; letter-spacing: 0.03em;
+  text-transform: uppercase; color: rgb(var(--v-theme-on-surface));
+}
+.fc-proposer {
+  border-top: 1px solid rgb(var(--v-theme-surface-light)); padding-top: 14px;
+}
+.fc-proposer:first-of-type { border-top: none; padding-top: 0; }
+.fc-caps {
+  border-top: 1px solid rgb(var(--v-theme-surface-light)); padding-top: 16px;
+}
+code {
+  font-family: 'JetBrains Mono', monospace; font-size: 0.85em;
+  background: rgb(var(--v-theme-surface-light)); padding: 1px 5px;
+  border-radius: 4px;
+}
+</style>
diff --git a/frontend/src/components/settings/MaintenancePanel.vue b/frontend/src/components/settings/MaintenancePanel.vue
index 26cae1f..dfc5693 100644
--- a/frontend/src/components/settings/MaintenancePanel.vue
+++ b/frontend/src/components/settings/MaintenancePanel.vue
@@ -36,6 +36,7 @@
       </p>
       <div class="fc-tile-stack">
         <MLThresholdSliders />
+        <CropProposersCard />
         <HeadsCard />
         <AliasTable />
       </div>
@@ -75,6 +76,7 @@ import MissingFileRepairCard from './MissingFileRepairCard.vue'
 import GpuTriageCard from './GpuTriageCard.vue'
 import DbMaintenanceCard from './DbMaintenanceCard.vue'
 import MLThresholdSliders from './MLThresholdSliders.vue'
+import CropProposersCard from './CropProposersCard.vue'
 import HeadsCard from './HeadsCard.vue'
 import GpuAgentCard from './GpuAgentCard.vue'
 import AliasTable from './AliasTable.vue'
diff --git a/tests/test_api_gpu.py b/tests/test_api_gpu.py
index e476c6b..25f0a7b 100644
--- a/tests/test_api_gpu.py
+++ b/tests/test_api_gpu.py
@@ -105,6 +105,30 @@ async def test_lease_announces_embed_model_then_submit_embedding(client, db):
     assert img.siglip_embedding is not None and len(list(img.siglip_embedding)) == 1152
 
 
+@pytest.mark.asyncio
+async def test_lease_announces_detector_config(client, db):
+    # #134: the lease carries the crop-proposer config from MLSettings, so the
+    # agent builds its detectors from the DB/UI (no restart). Defaults are all-on
+    # with the pinned working weights.
+    img = await _img(db, "c" * 64)
+    await GpuJobService(db).enqueue(img.id, "embed")
+    await db.commit()
+    token = (await (await client.post("/api/gpu/token/rotate")).get_json())["token"]
+    hdr = {"Authorization": f"Bearer {token}"}
+
+    leased = await client.post(
+        "/api/gpu/jobs/lease", json={"agent_id": "a1", "batch_size": 5}, headers=hdr,
+    )
+    det = (await leased.get_json())["jobs"][0]["detectors"]
+    assert det["person"]["enabled"]
+    assert det["anatomy"]["enabled"]
+    assert det["panel"]["enabled"]
+    assert "yolov11m_aa22" in det["anatomy"]["weights"]      # booru_yolo default
+    assert det["panel"]["weights"].endswith("::best.pt")     # mosesb default
+    assert det["max_regions"] == 128
+    assert det["dedupe_iou"] == 0.85
+
+
 @pytest.mark.asyncio
 async def test_submit_with_stale_lease_is_409(client, db):
     img = await _img(db, "b" * 64)
diff --git a/tests/test_api_ml_admin.py b/tests/test_api_ml_admin.py
index 5602f8c..33faf09 100644
--- a/tests/test_api_ml_admin.py
+++ b/tests/test_api_ml_admin.py
@@ -52,6 +52,35 @@ async def test_embedder_model_default_settable_and_empty_rejected(client):
     assert bad.status_code == 400
 
 
+@pytest.mark.asyncio
+async def test_detector_settings_defaults_patch_and_validation(client):
+    # #134: crop-proposer config is exposed + editable here (announced to the
+    # agent via the lease). Defaults are all-on with the pinned weights.
+    body = await (await client.get("/api/ml/settings")).get_json()
+    assert body["detector_person_enabled"] is True
+    assert body["detector_anatomy_enabled"] is True
+    assert "yolov11m_aa22" in body["detector_anatomy_weights"]
+    assert body["detector_panel_weights"].endswith("::best.pt")
+    assert body["detector_max_regions"] == 128
+
+    ok = await client.patch("/api/ml/settings", json={
+        "detector_anatomy_enabled": False,
+        "detector_person_conf": 0.5,
+        "detector_max_panels": 4,
+    })
+    assert ok.status_code == 200
+    out = await ok.get_json()
+    assert out["detector_anatomy_enabled"] is False
+    assert out["detector_person_conf"] == 0.5
+    assert out["detector_max_panels"] == 4
+
+    # Out-of-range confidence + non-positive cap are rejected.
+    assert (await client.patch(
+        "/api/ml/settings", json={"detector_panel_conf": 1.5})).status_code == 400
+    assert (await client.patch(
+        "/api/ml/settings", json={"detector_max_regions": 0})).status_code == 400
+
+
 @pytest.mark.asyncio
 async def test_embedder_models_list(client):
     # #1203: the dropdown reads the supported-model list from the server.