Candidate support/evidence acceptance

src/repo_registry/core/service.py

@@ -379,6 +379,13 @@ class RegistryService:
                         type=evidence.type,
                         reference=evidence.reference,
                         strength=evidence.strength,
+                        target_kind=evidence.target_kind,
+                        target_id=self._approved_evidence_target_id(
+                            evidence,
+                            approved_capability_id,
+                        ),
+                        reference_kind=evidence.reference_kind,
+                        reference_id=evidence.reference_id,
                         source_refs=evidence.source_refs,
                     )
 
@@ -520,6 +527,58 @@ class RegistryService:
         )
         return self.store.get_ability_map(repository_id)
 
+    def accept_candidate_evidence(
+        self,
+        repository_id: int,
+        analysis_run_id: int,
+        candidate_evidence_id: int,
+        *,
+        notes: str = "",
+    ) -> RepositoryAbilityMap:
+        graph = self.store.get_candidate_graph(repository_id, analysis_run_id)
+        parent_ability, parent_capability, evidence = (
+            self._candidate_evidence_with_parent(graph, candidate_evidence_id)
+        )
+        if evidence.status != "candidate":
+            raise ValueError(
+                f"candidate evidence {candidate_evidence_id} is not pending"
+            )
+        approved_ability_id = self._ensure_approved_ability(repository_id, parent_ability)
+        approved_capability_id = self._ensure_approved_capability(
+            repository_id,
+            approved_ability_id,
+            parent_ability.name,
+            parent_capability,
+        )
+        self.store.create_evidence(
+            repository_id,
+            approved_capability_id,
+            type=evidence.type,
+            reference=evidence.reference,
+            strength=evidence.strength,
+            target_kind=evidence.target_kind,
+            target_id=self._approved_evidence_target_id(
+                evidence,
+                approved_capability_id,
+            ),
+            reference_kind=evidence.reference_kind,
+            reference_id=evidence.reference_id,
+            source_refs=evidence.source_refs,
+        )
+        self.store.mark_candidate_evidence_status(
+            repository_id,
+            analysis_run_id,
+            candidate_evidence_id,
+            "approved",
+        )
+        self._record_candidate_acceptance(
+            repository_id,
+            analysis_run_id,
+            "accept_candidate_evidence",
+            notes or f"Accepted candidate support: {evidence.reference}",
+        )
+        return self.store.get_ability_map(repository_id)
+
     def diff_analysis_runs(
         self,
         repository_id: int,
@@ -618,6 +677,13 @@ class RegistryService:
                 type=evidence.type,
                 reference=evidence.reference,
                 strength=evidence.strength,
+                target_kind=evidence.target_kind,
+                target_id=self._approved_evidence_target_id(
+                    evidence,
+                    approved_capability_id,
+                ),
+                reference_kind=evidence.reference_kind,
+                reference_id=evidence.reference_id,
                 source_refs=evidence.source_refs,
             )
         return approved_capability_id
@@ -673,6 +739,15 @@ class RegistryService:
                     return ability, capability
         raise ValueError(f"candidate capability {candidate_capability_id} was not found")
 
+    def _approved_evidence_target_id(
+        self,
+        evidence: CandidateEvidence,
+        approved_capability_id: int,
+    ) -> int | None:
+        if evidence.target_kind == "capability":
+            return approved_capability_id
+        return evidence.target_id
+
     def _candidate_feature_with_parent(
         self,
         graph: CandidateGraph,
@@ -685,6 +760,18 @@ class RegistryService:
                         return ability, capability, feature
         raise ValueError(f"candidate feature {candidate_feature_id} was not found")
 
+    def _candidate_evidence_with_parent(
+        self,
+        graph: CandidateGraph,
+        candidate_evidence_id: int,
+    ) -> tuple[CandidateAbility, CandidateCapability, CandidateEvidence]:
+        for ability in graph.abilities:
+            for capability in ability.capabilities:
+                for evidence in capability.evidence:
+                    if evidence.id == candidate_evidence_id:
+                        return ability, capability, evidence
+        raise ValueError(f"candidate evidence {candidate_evidence_id} was not found")
+
     def _record_candidate_acceptance(
         self,
         repository_id: int,

src/repo_registry/storage/sqlite.py

@@ -677,6 +677,29 @@ class RegistryStore:
                 f"{repository_id} analysis run {analysis_run_id}"
             )
 
+    def mark_candidate_evidence_status(
+        self,
+        repository_id: int,
+        analysis_run_id: int,
+        candidate_evidence_id: int,
+        status: str,
+    ) -> None:
+        with self.connect() as connection:
+            cursor = connection.execute(
+                """
+                UPDATE candidate_evidence
+                SET status = ?
+                WHERE id = ? AND repository_id = ? AND analysis_run_id = ?
+                """,
+                (status, candidate_evidence_id, repository_id, analysis_run_id),
+            )
+        if cursor.rowcount == 0:
+            raise NotFoundError(
+                "candidate evidence "
+                f"{candidate_evidence_id} was not found for repository "
+                f"{repository_id} analysis run {analysis_run_id}"
+            )
+
     def _mark_candidate_children_status(
         self,
         connection: sqlite3.Connection,

src/repo_registry/web_ui/views.py

@@ -1367,6 +1367,25 @@ def reject_candidate_evidence_from_form(
     )
 
 
+@router.post(
+    "/ui/repos/{repository_id}/analysis-runs/{analysis_run_id}"
+    "/candidate-evidence/{candidate_evidence_id}/accept"
+)
+def accept_candidate_evidence_from_form(
+    repository_id: int,
+    analysis_run_id: int,
+    candidate_evidence_id: int,
+    service: RegistryService = Depends(get_service),
+) -> RedirectResponse:
+    service.accept_candidate_evidence(
+        repository_id,
+        analysis_run_id,
+        candidate_evidence_id,
+        notes="Accepted from web UI",
+    )
+    return RedirectResponse(f"/ui/repos/{repository_id}", status_code=303)
+
+
 @router.post(
     "/ui/repos/{repository_id}/analysis-runs/{analysis_run_id}"
     "/candidate-abilities/{candidate_ability_id}/edit"
@@ -2376,6 +2395,10 @@ def render_candidate_support_element_actions(
         f"/ui/repos/{repository_id}/analysis-runs/{analysis_run_id}"
         f"/candidate-evidence/{item_id}/reject"
     )
+    accept_action = (
+        f"/ui/repos/{repository_id}/analysis-runs/{analysis_run_id}"
+        f"/candidate-evidence/{item_id}/accept"
+    )
     relink_action = (
         f"/ui/repos/{repository_id}/analysis-runs/{analysis_run_id}"
         f"/candidate-evidence/{item_id}/relink"
@@ -2385,6 +2408,9 @@ def render_candidate_support_element_actions(
         f"/candidate-evidence/{item_id}/merge"
     )
     return f"""
+    <form method="post" action="{accept_action}">
+      <button type="submit">Accept</button>
+    </form>
     <form method="post" action="{reject_action}">
       <button class="secondary" type="submit">Remove</button>
     </form>

tests/test_registry_service.py

@@ -878,6 +878,52 @@ def test_accept_candidate_feature_promotes_parent_context_once(tmp_path):
     }
 
 
+def test_accept_candidate_evidence_promotes_parent_context(tmp_path):
+    source = tmp_path / "repo"
+    source.mkdir()
+    (source / "README.md").write_text(
+        "# Support Accept\nDocuments an HTTP health interface.\n",
+        encoding="utf-8",
+    )
+    (source / "tests").mkdir()
+    (source / "tests" / "test_health.py").write_text(
+        "def test_health(): pass\n",
+        encoding="utf-8",
+    )
+    (source / "app.py").write_text(
+        "from fastapi import FastAPI\n"
+        "app = FastAPI()\n"
+        '@app.get("/health")\n'
+        "def health():\n"
+        "    return {}\n",
+        encoding="utf-8",
+    )
+    service = make_service(tmp_path)
+    repository = service.register_repository(name="Support Accept", url=str(source))
+    summary = service.analyze_repository(repository.id)
+    graph = service.candidate_graph(repository.id, summary.analysis_run.id)
+    candidate_evidence = graph.abilities[0].capabilities[0].evidence[0]
+
+    ability_map = service.accept_candidate_evidence(
+        repository.id,
+        summary.analysis_run.id,
+        candidate_evidence.id,
+    )
+    graph_after_accept = service.candidate_graph(
+        repository.id,
+        summary.analysis_run.id,
+    )
+
+    approved_evidence = ability_map.abilities[0].capabilities[0].evidence[0]
+    assert approved_evidence.reference == candidate_evidence.reference
+    assert approved_evidence.target_kind == "capability"
+    assert graph_after_accept.abilities[0].capabilities[0].evidence[0].status == (
+        "approved"
+    )
+    decisions = service.list_review_decisions(repository.id, summary.analysis_run.id)
+    assert decisions[0].action == "accept_candidate_evidence"
+
+
 def test_analysis_run_diff_keeps_approved_map_stable_until_change_approval(tmp_path):
     source = tmp_path / "repo"
     source.mkdir()

tests/test_web_api.py

@@ -1205,6 +1205,18 @@ def test_ui_register_analyze_and_approve_loop(tmp_path):
         assert pending_candidate_listing.status_code == 200
         assert "Accept" in pending_candidate_listing.text
 
+        pending_support_listing = client.get(
+            f"/ui/repos/{repository_id}/elements",
+            params={
+                "scope": "candidate",
+                "analysis_run_id": first_run_id,
+                "type": "supports",
+            },
+        )
+        assert pending_support_listing.status_code == 200
+        assert "Candidate Supports" in pending_support_listing.text
+        assert "Accept" in pending_support_listing.text
+
         approve_response = client.post(
             f"{run_path}/candidate-graph/approve",
             follow_redirects=False,

workplans/RREG-WP-0003-automatic-repository-exploration.md

@@ -241,3 +241,9 @@ Implementation note 2026-04-29: the element browser now includes approved scope
 and support/evidence rows. Count badges link to scope and support listings, and
 support rows show both the supported characteristic target and the referenced
 source/fact/characteristic metadata.
+
+Implementation note 2026-04-29: candidate support/evidence can now be accepted
+from the UI and service layer. Accepting support promotes the parent ability and
+capability context as needed, records a review decision, marks the candidate
+support approved, and maps capability support targets to the approved capability
+ID.