backend/planning_exercise_path_builder.py

@@ -120,6 +120,8 @@ class ProgressionPathSuggestRequest(BaseModel):
     evaluate_only: bool = False
     evaluate_steps: Optional[List[EvaluateStepPayload]] = None
     slot_assignments: Optional[List[EvaluateStepPayload]] = None
+    preserve_slot_assignments: bool = False
+    retrieval_boost_exercise_ids: Optional[List[int]] = None
     roadmap_override: Optional[RoadmapOverridePayload] = None
     start_situation: Optional[str] = Field(default=None, max_length=2000)
     target_state: Optional[str] = Field(default=None, max_length=2000)
@@ -267,18 +269,53 @@ def _build_path_target_profile(
     return target, query_intent_summary, intent
 
 
-def _supplemental_exercise_ids_from_body(body: ProgressionPathSuggestRequest) -> List[int]:
+def _graph_edge_exercise_ids(cur, graph_id: Optional[int]) -> List[int]:
-    """Verankerte Graph-Slots immer im Retriever-Kandidatenpool halten."""
+    """Übungs-IDs aus gespeicherten Graph-Kanten (für Re-Match-Boost)."""
+    if not graph_id or int(graph_id) < 1:
+        return []
+    cur.execute(
+        """
+        SELECT from_exercise_id AS eid FROM exercise_progression_edges
+        WHERE graph_id = %s AND from_exercise_id IS NOT NULL
+        UNION
+        SELECT to_exercise_id AS eid FROM exercise_progression_edges
+        WHERE graph_id = %s AND to_exercise_id IS NOT NULL
+        """,
+        (int(graph_id), int(graph_id)),
+    )
+    out: List[int] = []
+    for row in cur.fetchall() or []:
+        try:
+            eid = int(row.get("eid") or 0)
+        except (TypeError, ValueError):
+            continue
+        if eid > 0:
+            out.append(eid)
+    return out
+
+
+def _supplemental_exercise_ids_from_body(
+    cur,
+    body: ProgressionPathSuggestRequest,
+) -> List[int]:
+    """Kandidatenpool erweitern — ohne automatisches Slot-Pinning."""
     ids: List[int] = []
-    for coll in (body.slot_assignments, body.evaluate_steps):
+    for raw in body.evaluate_steps or []:
-        for raw in coll or []:
+        if raw.exercise_id is not None:
-            if raw.exercise_id is not None:
+            try:
-                try:
+                eid = int(raw.exercise_id)
-                    eid = int(raw.exercise_id)
+            except (TypeError, ValueError):
-                except (TypeError, ValueError):
+                continue
-                    continue
+            if eid > 0:
-                if eid > 0:
+                ids.append(eid)
-                    ids.append(eid)
+    for eid in body.retrieval_boost_exercise_ids or []:
+        try:
+            val = int(eid)
+        except (TypeError, ValueError):
+            continue
+        if val > 0:
+            ids.append(val)
+    ids.extend(_graph_edge_exercise_ids(cur, body.progression_graph_id))
     return list(dict.fromkeys(ids))
 
 
@@ -845,7 +882,7 @@ def _match_roadmap_slot(
         path_context_note=path_context_note,
         path_primary_topic=path_primary or None,
         path_technique_excludes=path_tech_excludes or None,
-        supplemental_exercise_ids=_supplemental_exercise_ids_from_body(body),
+        supplemental_exercise_ids=_supplemental_exercise_ids_from_body(cur, body),
     )
 
     hit = _pick_best_path_hit(
@@ -1026,7 +1063,11 @@ def _build_steps_roadmap_first(
     anchor_variant_id: Optional[int] = None
     unfilled: List[Tuple[int, StageSpecArtifact]] = []
     stage_count = len(stage_specs)
-    assignments = _slot_assignments_by_major_index(body.slot_assignments)
+    assignments = (
+        _slot_assignments_by_major_index(body.slot_assignments)
+        if body.preserve_slot_assignments
+        else {}
+    )
     majors_by_index: Dict[int, MajorStep] = {}
     if roadmap_ctx.roadmap:
         majors_by_index = {m.index: m for m in roadmap_ctx.roadmap.major_steps}
@@ -1579,7 +1620,7 @@ def suggest_progression_path(
                 semantic_brief=semantic_brief,
                 path_target_profile=path_target_profile,
                 path_intent=path_intent,
-                supplemental_exercise_ids=_supplemental_exercise_ids_from_body(body),
+                supplemental_exercise_ids=_supplemental_exercise_ids_from_body(cur, body),
             )
 
             hit = _pick_best_path_hit(hits, used, semantic_brief=semantic_brief)
@@ -1640,7 +1681,7 @@ def suggest_progression_path(
                 planned_ids=planned_ids,
                 path_target_profile=path_target_profile,
                 path_intent=path_intent,
-                supplemental_exercise_ids=_supplemental_exercise_ids_from_body(body),
+                supplemental_exercise_ids=_supplemental_exercise_ids_from_body(cur, body),
             )
             steps, bridge_inserts, unfilled_gaps = insert_bridge_exercises(
                 cur,
@@ -1683,7 +1724,11 @@ def suggest_progression_path(
             goal_query=goal_query,
         )
         off_topic_before_strip = list(off_topic_steps)
-        steps, stripped_off_topic = strip_off_topic_steps_from_path(steps, off_topic_steps)
+        steps, stripped_off_topic = strip_off_topic_steps_from_path(
+            steps,
+            off_topic_steps,
+            min_remaining=0 if roadmap_first else 2,
+        )
         if stripped_off_topic:
             off_topic_steps = []
             gaps = detect_path_gaps(

backend/planning_exercise_semantics.py

@@ -1286,8 +1286,6 @@ def pick_best_path_hit(
         return chosen
 
     if roadmap_stage_match:
-        if (path_primary_topic or "").strip():
-            return None
         chosen = _scan(strict=False)
         return chosen
 

backend/tests/test_planning_exercise_path_builder.py

@@ -1,12 +1,37 @@
 """Tests Planungs-KI Phase C3/E/F — Pfad-Vorschläge."""
 from planning_exercise_path_builder import (
+    EvaluateStepPayload,
+    ProgressionPathSuggestRequest,
     _annotate_roadmap_step,
     _hit_to_path_step,
     _pick_best_path_hit,
+    _supplemental_exercise_ids_from_body,
 )
 from planning_progression_roadmap import MajorStep, StageSpecArtifact
 
 
+class _FakeCur:
+    def execute(self, *_args, **_kwargs):
+        return None
+
+    def fetchall(self):
+        return []
+
+
+def test_supplemental_boost_uses_retrieval_boost_not_slot_pins():
+    body = ProgressionPathSuggestRequest(
+        query="Mawashi Geri Progression",
+        slot_assignments=[
+            EvaluateStepPayload(exercise_id=99, roadmap_major_step_index=0),
+        ],
+        retrieval_boost_exercise_ids=[42, 7],
+    )
+    ids = _supplemental_exercise_ids_from_body(_FakeCur(), body)
+    assert 99 not in ids
+    assert 42 in ids
+    assert 7 in ids
+
+
 def test_pick_next_path_hit_skips_used():
     hits = [{"id": 1, "title": "A", "semantic_score": 0.2}, {"id": 2, "title": "B", "semantic_score": 0.2}, {"id": 3, "title": "C", "semantic_score": 0.2}]
     assert _pick_best_path_hit(hits, {1})["id"] == 2

backend/tests/test_planning_roadmap_stage_match.py

@@ -340,6 +340,39 @@ def test_technique_scope_rejects_kumite_when_only_stage_goal_mentions_mawashi():
     )
 
 
+def test_pick_roadmap_relaxed_with_path_primary_when_strict_fails():
+    """Bestehende Graph-Übungen: relaxed Gate auch bei gesetztem path_primary_topic."""
+    stage_goal = "Hüftmobilität für Mawashi Geri"
+    primary = "mawashi geri"
+    stage_brief = build_stage_match_brief(
+        learning_goal=stage_goal,
+        path_primary_topic=primary,
+        path_technique_excludes=technique_sibling_excludes(primary),
+    )
+    hits = [
+        {
+            "id": 42,
+            "title": "Mawashi Geri Hüftmobilität — Vereinsübung",
+            "summary": "Dehnung und Hüfte für Rundtritt",
+            "goal": "Mobilität Mawashi Geri",
+            "score": 0.55,
+            "semantic_score": 0.25,
+            "stage_semantic_score": 0.25,
+        },
+    ]
+    chosen = pick_best_path_hit(
+        hits,
+        set(),
+        stage_learning_goal=stage_goal,
+        roadmap_stage_match=True,
+        stage_match_brief=stage_brief,
+        path_primary_topic=primary,
+        path_technique_excludes=technique_sibling_excludes(primary),
+    )
+    assert chosen is not None
+    assert int(chosen["id"]) == 42
+
+
 def test_pick_best_roadmap_rejects_kumite_with_path_primary_topic():
     q = "gesprungener Mawashi Geri Sprungphase"
     brief = enrich_brief_with_path_constraints(build_semantic_brief(q), q)

frontend/src/components/ProgressionGraphEditor.jsx

@@ -41,7 +41,7 @@ import {
   SLOT_MAX,
   slotsAsPathStepRows,
   slotsToEvaluateSteps,
-  slotsToSlotAssignments,
+  draftRetrievalBoostExerciseIds,
   syncProgressionRoadmapFromSlots,
   syncSlotPhasesFromRoadmap,
 } from '../utils/progressionGraphDraft'
@@ -415,7 +415,7 @@ export default function ProgressionGraphEditor({ graphId, embedded = false, onSa
         include_llm_roadmap: false,
         roadmap_first: true,
         roadmap_override: override,
-        slot_assignments: slotsToSlotAssignments(synced),
+        retrieval_boost_exercise_ids: draftRetrievalBoostExerciseIds(synced),
         progression_graph_id: Number(graphId),
         ...roadmapStructuredPayload(draft.startSituation, draft.targetState, draft.roadmapNotes),
       })

frontend/src/utils/progressionGraphDraft.js

@@ -712,19 +712,17 @@ export function draftSiblingEdgePairs(draft) {
   return pairs
 }
 
-/** Bereits zugeordnete Bibliotheks-Übungen für Re-Match (Pins). */
+/** Bereits zugeordnete Bibliotheks-Übungen — nur Retriever-Boost, kein Pinning. */
-export function slotsToSlotAssignments(draft) {
+export function draftRetrievalBoostExerciseIds(draft) {
-  return (draft.slots || [])
+  const ids = new Set()
-    .filter((slot) => slot.primary?.kind === 'library' && slot.primary.exerciseId != null)
+  for (const slot of draft.slots || []) {
-    .map((slot) => ({
+    const p = slot.primary
-      exercise_id: slot.primary.exerciseId,
+    if (p?.kind === 'library' && p.exerciseId != null) ids.add(p.exerciseId)
-      variant_id: slot.primary.variantId || null,
+    for (const sib of slot.siblings || []) {
-      title: slot.primary.exerciseTitle || null,
+      if (sib.kind === 'library' && sib.exerciseId != null) ids.add(sib.exerciseId)
-      is_ai_proposal: false,
+    }
-      roadmap_major_step_index: slot.majorStepIndex,
+  }
-      roadmap_phase: slot.phase || null,
+  return [...ids]
-      roadmap_learning_goal: slot.learning_goal || null,
-    }))
 }
 
 export function slotsToEvaluateSteps(draft) {
@@ -804,11 +802,7 @@ export function applyMatchStepsToSlots(draft, apiSteps) {
 
   for (let i = 0; i < nextSlots.length; i += 1) {
     if (!touchedMajors.has(i)) {
-      const keep =
+      nextSlots[i].primary = emptySlotExercise()
-        nextSlots[i].primary?.kind === 'library' && nextSlots[i].primary.exerciseId != null
-      if (!keep) {
-        nextSlots[i].primary = emptySlotExercise()
-      }
     }
   }