diff --git a/agent/moa_loop.py b/agent/moa_loop.py
index f52b88cbb5f5..8ac5dd0d430e 100644
--- a/agent/moa_loop.py
+++ b/agent/moa_loop.py
@@ -428,7 +428,7 @@ def _run_reference(
     *,
     temperature: float | None = None,
     max_tokens: int | None = None,
-    reference_timeout: float = 30.0,
+    reference_timeout: float | None = None,
 ) -> tuple[str, str, Any]:
     """Call one reference model and return ``(label, text, accounting)``.
 
@@ -573,7 +573,7 @@ def _run_references_parallel(
     temperature: float | None = None,
     max_tokens: int | None = None,
     progress_callback: Any = None,
-    reference_timeout: float = 30.0,
+    reference_timeout: float | None = None,
 ) -> list[tuple[str, str, Any]]:
     """Fan out all reference models in parallel, returning outputs in order.
 
@@ -867,8 +867,15 @@ def _preset_temperature(preset: dict[str, Any], key: str) -> float | None:
 
 
 def _is_failed_reference(text: str) -> bool:
-    """Return whether a reference output is the internal failure sentinel."""
-    return text.lstrip().lower().startswith("[failed:")
+    """Return whether a reference output is an internal failure/skip sentinel.
+
+    Covers both the ``[failed: …]`` notes produced when a reference call
+    raises (which may embed raw provider error text) and the
+    ``[skipped: …]`` recursion-guard notes — neither is real advice, so
+    neither belongs in the aggregator prompt.
+    """
+    sentinel = text.lstrip().lower()
+    return sentinel.startswith("[failed:") or sentinel.startswith("[skipped:")
 
 
 def _successful_references(
@@ -899,7 +906,7 @@ def aggregate_moa_context(
     temperature: float | None = None,
     aggregator_temperature: float | None = None,
     reference_max_tokens: int | None = None,
-    reference_timeout: float = 30.0,
+    reference_timeout: float | None = None,
     degraded_reference_policy: str = "loud",
 ) -> str:
     """Run configured reference models and synthesize their advice.
@@ -1346,7 +1353,13 @@ class MoAChatCompletions:
         # explicit values. See _preset_temperature.
         temperature = _preset_temperature(preset, "reference_temperature")
         aggregator_temperature = _preset_temperature(preset, "aggregator_temperature")
-        reference_timeout = float(preset.get("reference_timeout") or 30.0)
+        # None (the default) = no per-preset override; the fan-out inherits
+        # auxiliary.moa_reference.timeout (900s default) via call_llm's own
+        # per-task timeout resolution. Explicit per-preset values are honored.
+        raw_reference_timeout = preset.get("reference_timeout")
+        reference_timeout = (
+            float(raw_reference_timeout) if raw_reference_timeout else None
+        )
         degraded_reference_policy = str(
             preset.get("degraded_reference_policy") or "loud"
         )
diff --git a/apps/desktop/src/types/hermes.ts b/apps/desktop/src/types/hermes.ts
index c5f9d1e84de9..cbcff82d1914 100644
--- a/apps/desktop/src/types/hermes.ts
+++ b/apps/desktop/src/types/hermes.ts
@@ -1019,7 +1019,7 @@ export interface MoaConfigResponse {
       reference_max_tokens?: number | null
       /** Fan-out cadence (per_iteration | user_turn) — round-tripped. */
       fanout?: string
-      reference_timeout: number
+      reference_timeout: number | null
     }
   >
   aggregator: MoaModelSlot
@@ -1029,7 +1029,7 @@ export interface MoaConfigResponse {
   max_tokens: number
   reference_models: MoaModelSlot[]
   reference_temperature: number
-  reference_timeout: number
+  reference_timeout: number | null
 }
 
 export interface ModelAssignmentRequest {
diff --git a/hermes_cli/moa_config.py b/hermes_cli/moa_config.py
index 0ebb38570a09..c92f516b1a18 100644
--- a/hermes_cli/moa_config.py
+++ b/hermes_cli/moa_config.py
@@ -21,8 +21,7 @@ DEFAULT_MOA_AGGREGATOR: dict[str, str] = {
     "model": "anthropic/claude-opus-4.8",
 }
 
-DEFAULT_MOA_REFERENCE_TIMEOUT = 30.0
-MAX_MOA_REFERENCE_TIMEOUT = 300.0
+DEFAULT_MOA_REFERENCE_TIMEOUT: float | None = None
 
 
 def _default_reference_models() -> list[dict[str, Any]]:
@@ -45,9 +44,17 @@ def _coerce_float_or_none(value: Any) -> float | None:
         return None
 
 
-def _coerce_reference_timeout(value: Any) -> float:
-    """Return a finite positive advisor timeout capped at five minutes."""
-    if isinstance(value, bool):
+def _coerce_reference_timeout(value: Any) -> float | None:
+    """Return a finite positive advisor timeout, or None to inherit.
+
+    ``None`` (the default) means "no per-preset override": the reference
+    fan-out inherits the ``auxiliary.moa_reference.timeout`` config value
+    (900s by default) via ``call_llm``'s own resolution, exactly like every
+    other auxiliary task. An explicit finite positive per-preset value is
+    honored as-is — no artificial cap, since long-thinking advisor models
+    legitimately run far beyond five minutes.
+    """
+    if value is None or value == "" or isinstance(value, bool):
         return DEFAULT_MOA_REFERENCE_TIMEOUT
     try:
         timeout = float(value)
@@ -55,7 +62,7 @@ def _coerce_reference_timeout(value: Any) -> float:
         return DEFAULT_MOA_REFERENCE_TIMEOUT
     if not math.isfinite(timeout) or timeout <= 0:
         return DEFAULT_MOA_REFERENCE_TIMEOUT
-    return min(timeout, MAX_MOA_REFERENCE_TIMEOUT)
+    return timeout
 
 
 def _coerce_degraded_reference_policy(value: Any) -> str:
diff --git a/hermes_cli/web_server.py b/hermes_cli/web_server.py
index b02edc272777..d6c08510f50b 100644
--- a/hermes_cli/web_server.py
+++ b/hermes_cli/web_server.py
@@ -1365,13 +1365,17 @@ class MoaModelSlot(BaseModel):
 
 
 class _MoaReferenceControls(BaseModel):
-    reference_timeout: float = 30.0
+    # None = no per-preset override; the fan-out inherits
+    # auxiliary.moa_reference.timeout (900s default).
+    reference_timeout: Optional[float] = None
     degraded_reference_policy: Literal["loud", "silent"] = "loud"
 
     @field_validator("reference_timeout", mode="before")
     @classmethod
-    def _validate_reference_timeout(cls, value: Any) -> float:
+    def _validate_reference_timeout(cls, value: Any) -> Optional[float]:
         """Reject JSON booleans/non-finite values before float coercion."""
+        if value is None or value == "":
+            return None
         if isinstance(value, bool):
             raise ValueError("reference_timeout must be a finite positive number")
         try:
diff --git a/tests/hermes_cli/test_moa_config.py b/tests/hermes_cli/test_moa_config.py
index ad46283d99cd..0738e668096b 100644
--- a/tests/hermes_cli/test_moa_config.py
+++ b/tests/hermes_cli/test_moa_config.py
@@ -754,13 +754,16 @@ def test_reference_failure_controls_are_normalized_per_preset_and_flattened():
 
 @pytest.mark.parametrize("value", [None, "", 0, -1, "bad"])
 def test_reference_timeout_invalid_values_fall_back_to_default(value):
-    assert resolve_moa_preset(_preset(reference_timeout=value), "p")["reference_timeout"] == 30.0
+    # None = inherit auxiliary.moa_reference.timeout (no per-preset override).
+    assert resolve_moa_preset(_preset(reference_timeout=value), "p")["reference_timeout"] is None
 
 
-def test_reference_timeout_is_capped_and_unknown_policy_is_loud():
+def test_reference_timeout_is_uncapped_and_unknown_policy_is_loud():
     preset = resolve_moa_preset(
         _preset(reference_timeout=9999, degraded_reference_policy="wat"), "p"
     )
 
-    assert preset["reference_timeout"] == 300.0
+    # Explicit per-preset values are honored as-is — long-thinking advisor
+    # models legitimately run beyond any fixed cap.
+    assert preset["reference_timeout"] == 9999.0
     assert preset["degraded_reference_policy"] == "loud"
diff --git a/tests/run_agent/test_moa_loop_mode.py b/tests/run_agent/test_moa_loop_mode.py
index a3d76ca11427..dec14524e4fc 100644
--- a/tests/run_agent/test_moa_loop_mode.py
+++ b/tests/run_agent/test_moa_loop_mode.py
@@ -1889,6 +1889,31 @@ def test_reference_filtering_preserves_accounting_triples():
     assert _failed_reference_labels(outputs) == ["bad-model"]
 
 
+def test_reference_filtering_excludes_recursion_guard_skips():
+    """[skipped: …] recursion-guard notes are internal sentinels, not advice —
+    they must be filtered out of the aggregator prompt like [failed: …]."""
+    from agent.moa_loop import (
+        _RefAccounting,
+        _failed_reference_labels,
+        _is_failed_reference,
+        _successful_references,
+    )
+    from agent.usage_pricing import CanonicalUsage
+
+    outputs = [
+        ("good-model", "useful advice", _RefAccounting(CanonicalUsage())),
+        (
+            "moa:nested",
+            "[skipped: MoA presets cannot recursively reference MoA]",
+            _RefAccounting(CanonicalUsage()),
+        ),
+    ]
+
+    assert _is_failed_reference(outputs[1][1])
+    assert _successful_references(outputs) == [outputs[0]]
+    assert _failed_reference_labels(outputs) == ["moa:nested"]
+
+
 def test_aggregate_moa_context_sanitizes_failed_reference_and_forwards_timeout(monkeypatch):
     from agent import moa_loop
     from agent.usage_pricing import CanonicalUsage
diff --git a/web/src/lib/api.ts b/web/src/lib/api.ts
index 1455d369ef4f..6123e2087665 100644
--- a/web/src/lib/api.ts
+++ b/web/src/lib/api.ts
@@ -2344,7 +2344,7 @@ export interface MoaConfigResponse {
     aggregator: MoaModelSlot;
     reference_temperature: number;
     aggregator_temperature: number;
-    reference_timeout: number;
+    reference_timeout: number | null;
     degraded_reference_policy: "loud" | "silent";
     max_tokens: number;
     /** Optional advisor output cap — round-tripped, not edited here. */
@@ -2357,7 +2357,7 @@ export interface MoaConfigResponse {
   aggregator: MoaModelSlot;
   reference_temperature: number;
   aggregator_temperature: number;
-  reference_timeout: number;
+  reference_timeout: number | null;
   degraded_reference_policy: "loud" | "silent";
   max_tokens: number;
   enabled: boolean;