diff --git a/harness/tests/test_config_resources.py b/harness/tests/test_config_resources.py
index d20853cc..ad72015c 100644
--- a/harness/tests/test_config_resources.py
+++ b/harness/tests/test_config_resources.py
@@ -1,7 +1,7 @@
 import pytest
 
-from tht.adapters.evidence import FilesystemEvidenceSource, HttpManifestEvidenceSource
-from tht.adapters.factory import build_evidence_sources
+from tht.evidence.adapters import FilesystemEvidenceSource, HttpManifestEvidenceSource
+from tht.evidence import build_sources
 from tht.config import (
     ConfigError,
     PgvectorDirectConfig,
@@ -369,7 +369,7 @@ evidence:
     assert "example.test" not in repr(cfg.evidence)
     assert "example.test" not in cfg.evidence.model_dump_json()
     assert cfg.evidence.sources[1].allow_private_hosts is False
-    sources = build_evidence_sources(cfg)
+    sources = build_sources(cfg.evidence)
     assert isinstance(sources[0], FilesystemEvidenceSource)
     assert isinstance(sources[1], HttpManifestEvidenceSource)
     assert "example.test" not in repr(sources[1])
@@ -381,7 +381,7 @@ evidence:
   source_root: {tmp_path}
   evidence_dir: curated
 """)
-    legacy_source = build_evidence_sources(load_config(legacy))[0]
+    legacy_source = build_sources(load_config(legacy).evidence)[0]
     assert isinstance(legacy_source, FilesystemEvidenceSource)
     assert legacy_source.root == (tmp_path / "curated").resolve()
 
diff --git a/harness/tests/test_corpus_chunk.py b/harness/tests/test_corpus_chunk.py
index 341e13bb..804b95d2 100644
--- a/harness/tests/test_corpus_chunk.py
+++ b/harness/tests/test_corpus_chunk.py
@@ -2,8 +2,8 @@ import hashlib
 
 import pytest
 
-from tht.corpus.chunk import ChunkPolicy, chunk
-from tht.corpus.models import CanonicalDocument, CorpusManifest
+from tht.evidence.corpus.chunk import ChunkPolicy, chunk
+from tht.evidence.corpus.models import CanonicalDocument, CorpusManifest
 
 
 def document(content: str) -> CanonicalDocument:
diff --git a/harness/tests/test_corpus_models.py b/harness/tests/test_corpus_models.py
index 0e9ee673..a2c053bb 100644
--- a/harness/tests/test_corpus_models.py
+++ b/harness/tests/test_corpus_models.py
@@ -4,7 +4,7 @@ from datetime import UTC, datetime, timedelta, timezone
 import pytest
 from pydantic import ValidationError
 
-from tht.corpus.models import CanonicalChunk, CanonicalDocument, CorpusManifest
+from tht.evidence.corpus.models import CanonicalChunk, CanonicalDocument, CorpusManifest
 
 
 def document(source_uri: str = "https://host/a.md") -> CanonicalDocument:
diff --git a/harness/tests/test_corpus_normalize.py b/harness/tests/test_corpus_normalize.py
index 96a115e6..3b2165d1 100644
--- a/harness/tests/test_corpus_normalize.py
+++ b/harness/tests/test_corpus_normalize.py
@@ -3,8 +3,8 @@ from datetime import UTC, datetime
 
 import pytest
 
-from tht.corpus.normalize import MAX_DOCUMENT_BYTES, PermanentNormalizationError, normalize
-from tht.ports.evidence import AcquiredDocument, SourceObject
+from tht.evidence.corpus.normalize import MAX_DOCUMENT_BYTES, PermanentNormalizationError, normalize
+from tht.evidence.contracts import AcquiredDocument, SourceObject
 
 
 def acquired(content: bytes, *, media_type: str = "text/markdown") -> AcquiredDocument:
diff --git a/harness/tests/test_corpus_pipeline.py b/harness/tests/test_corpus_pipeline.py
index 572938ef..5edd3891 100644
--- a/harness/tests/test_corpus_pipeline.py
+++ b/harness/tests/test_corpus_pipeline.py
@@ -2,11 +2,11 @@ from datetime import UTC, datetime, timedelta
 
 import pytest
 
-from tht.corpus.chunk import ChunkPolicy
-from tht.corpus.pipeline import CorpusPipeline, PipelineError, PipelineResult
-from tht.corpus.store import CorpusStore
-from tht.corpus.models import CanonicalChunk, CanonicalDocument, CorpusManifest
-from tht.ports.evidence import AcquiredDocument, SourceObject
+from tht.evidence.corpus.chunk import ChunkPolicy
+from tht.evidence.corpus.pipeline import CorpusPipeline, PipelineError, PipelineResult
+from tht.evidence.corpus.store import CorpusStore
+from tht.evidence.corpus.models import CanonicalChunk, CanonicalDocument, CorpusManifest
+from tht.evidence.contracts import AcquiredDocument, SourceObject
 from tht.ports.vector import VectorCapabilities, VectorHealth
 
 
@@ -273,7 +273,7 @@ def test_gc_preserves_vector_dependencies_of_retained_manifests(tmp_path):
 
 def test_active_searcher_without_active_fails_closed_for_evidence(tmp_path):
     from types import SimpleNamespace
-    from tht.search.evidence import active_searcher
+    from tht.evidence.search import active_searcher
 
     class Delegate:
         def search(self, embedding, top_n=10, kinds=None, metadata_filter=None):
@@ -287,7 +287,7 @@ def test_active_searcher_without_active_fails_closed_for_evidence(tmp_path):
 
 def test_active_searcher_splits_default_and_mixed_kinds_before_global_limit(tmp_path):
     from types import SimpleNamespace
-    from tht.search.evidence import ActiveEvidenceSearcher
+    from tht.evidence.search import ActiveEvidenceSearcher
 
     store = CorpusStore(tmp_path / "corpus")
     generation = store.stage(
@@ -319,7 +319,7 @@ def test_active_searcher_splits_default_and_mixed_kinds_before_global_limit(tmp_
 def test_active_evidence_query_holds_lock_against_publish(tmp_path):
     import threading
     from types import SimpleNamespace
-    from tht.search.evidence import ActiveEvidenceSearcher
+    from tht.evidence.search import ActiveEvidenceSearcher
 
     first_pipeline = pipeline(tmp_path, Source([(item("one", "a"), "old")]), vectors=Vectors())
     first_pipeline.run()
@@ -450,7 +450,7 @@ def test_gc_rejects_workspace_mismatch_without_deleting(tmp_path):
 
 @pytest.mark.parametrize("kinds", [None, ["evidence", "memory"], ["memory"]])
 def test_active_search_rejects_workspace_mismatch_before_delegate(tmp_path, kinds):
-    from tht.search.evidence import ActiveEvidenceSearcher, CorpusWorkspaceMismatchError
+    from tht.evidence.search import ActiveEvidenceSearcher, CorpusWorkspaceMismatchError
 
     vectors = Vectors()
     owner = pipeline(tmp_path, Source([(item("one", "a"), "stable")]), vectors=vectors)
diff --git a/harness/tests/test_corpus_publish.py b/harness/tests/test_corpus_publish.py
index 0596bd3a..3e8fca75 100644
--- a/harness/tests/test_corpus_publish.py
+++ b/harness/tests/test_corpus_publish.py
@@ -1,8 +1,8 @@
 import pytest
 import os
 
-from tht.corpus.models import CorpusManifest
-from tht.corpus.store import CorpusStore, UnsafeCorpusPath
+from tht.evidence.corpus.models import CorpusManifest
+from tht.evidence.corpus.store import CorpusStore, UnsafeCorpusPath
 
 
 def test_publish_switches_active_atomically_and_resolves_materialized_files(tmp_path):
@@ -60,7 +60,7 @@ def test_publish_restores_previous_active_when_directory_fsync_fails_after_repla
 
 
 def test_read_document_rejects_symlink_hardlink_and_hash_mismatch(tmp_path):
-    from tht.corpus.models import CanonicalDocument
+    from tht.evidence.corpus.models import CanonicalDocument
 
     content = "trusted"
     digest = "sha256:" + __import__("hashlib").sha256(content.encode()).hexdigest()
@@ -111,7 +111,7 @@ def test_published_inventory_excludes_staged_and_invalid_newer_directories(tmp_p
 
 
 def test_owned_copy_uses_validated_descriptor_bytes_when_source_is_replaced(tmp_path, monkeypatch):
-    from tht.corpus.models import CanonicalDocument
+    from tht.evidence.corpus.models import CanonicalDocument
     import hashlib
 
     content = "active bytes"
@@ -140,7 +140,7 @@ def test_owned_copy_uses_validated_descriptor_bytes_when_source_is_replaced(tmp_
 
 
 def test_materialized_snapshot_uses_identified_manifest_when_active_changes(tmp_path):
-    from tht.corpus.models import CanonicalDocument
+    from tht.evidence.corpus.models import CanonicalDocument
     import hashlib
 
     def doc(content, fingerprint):
diff --git a/harness/tests/test_evidence_facade_contract.py b/harness/tests/test_evidence_facade_contract.py
index aac845aa..6964d45f 100644
--- a/harness/tests/test_evidence_facade_contract.py
+++ b/harness/tests/test_evidence_facade_contract.py
@@ -1,12 +1,13 @@
 from datetime import UTC, datetime
 import hashlib
 import inspect
+from pathlib import Path
 from types import SimpleNamespace
 
 import pytest
 
-from tht.corpus.models import CanonicalDocument, CorpusManifest
-from tht.corpus.store import CorpusStore
+from tht.evidence.corpus.models import CanonicalDocument, CorpusManifest
+from tht.evidence.corpus.store import CorpusStore
 from tht.decisions import DecisionRecord
 from tht.evidence import (
     acquire,
@@ -18,15 +19,12 @@ from tht.evidence import (
     project_session,
     resolve_citation,
 )
-from tht.ports.evidence import (
+from tht.evidence.contracts import (
     AcquiredDocument,
     EvidenceSourceError,
     EvidenceSourceErrorCategory,
     SourceObject,
 )
-from tht.search.evidence import active_searcher as legacy_active_searcher
-from tht.search.evidence import resolve_evidence_file
-from tht.session.artifacts import build_evidence_entries
 from tht.session.models import Candidate, SchemaLinking
 
 
@@ -91,8 +89,6 @@ def test_acquisition_facade_preserves_classified_errors():
 
 
 def test_source_factory_preserves_legacy_first_order_and_filesystem_configuration(tmp_path):
-    from tht.adapters.factory import build_evidence_sources
-
     legacy_root = tmp_path / "legacy"
     configured_root = tmp_path / "configured"
     (legacy_root / "evidence").mkdir(parents=True)
@@ -108,16 +104,14 @@ def test_source_factory_preserves_legacy_first_order_and_filesystem_configuratio
         )],
     ))
 
-    legacy = build_evidence_sources(cfg)
     current = build_sources(cfg.evidence)
 
-    assert [type(source) for source in current] == [type(source) for source in legacy]
     assert [source.root for source in current] == [
         (legacy_root / "evidence").resolve(),
         configured_root.resolve(),
     ]
-    assert current[1].patterns == legacy[1].patterns == ("*.md",)
-    assert current[1].max_bytes == legacy[1].max_bytes == 1024
+    assert current[1].patterns == ("*.md",)
+    assert current[1].max_bytes == 1024
 
 
 def test_preprocessing_factory_forwards_only_evidence_pipeline_dependencies(monkeypatch):
@@ -127,7 +121,7 @@ def test_preprocessing_factory_forwards_only_evidence_pipeline_dependencies(monk
         def __init__(self, **kwargs):
             captured.update(kwargs)
 
-    monkeypatch.setattr("tht.corpus.pipeline.CorpusPipeline", FakePipeline)
+    monkeypatch.setattr("tht.evidence.preprocessing.CorpusPipeline", FakePipeline)
     dependencies = {
         "store": object(),
         "sources": [object()],
@@ -176,18 +170,14 @@ class OrderedDelegate:
 
 def test_search_facade_preserves_active_filtering_and_global_order(tmp_path):
     cfg = _active_config(tmp_path)
-    legacy_delegate = OrderedDelegate()
     facade_delegate = OrderedDelegate()
 
-    legacy = legacy_active_searcher(
-        cfg, legacy_delegate, workspace_id="workspace-a",
-    ).search([1.0], top_n=2, kinds=["evidence", "memory"])
     current = active_searcher(
         cfg, facade_delegate, workspace_id="workspace-a",
     ).search([1.0], top_n=2, kinds=["evidence", "memory"])
 
-    assert [hit.id for hit in current] == [hit.id for hit in legacy] == ["higher", "lower"]
-    assert facade_delegate.calls == legacy_delegate.calls
+    assert [hit.id for hit in current] == ["higher", "lower"]
+    assert facade_delegate.calls == [([1.0], 2, ["memory"], None)]
 
 
 def test_retrieval_entries_preserve_hit_order_and_existing_projection_shape():
@@ -225,14 +215,12 @@ def test_citation_facade_matches_active_corpus_resolution(tmp_path):
     store = _canonical_store(tmp_path / "corpus", "evi-used")
     materialized = tmp_path / "materialized"
 
-    legacy = resolve_evidence_file(
-        store, "evi-used", materialized_root=materialized,
-    )
     current = resolve_citation(
         store, "evi-used", materialized_root=materialized,
     )
 
-    assert current == legacy
+    assert current.endswith(".md")
+    assert Path(current).read_text(encoding="utf-8") == "# evi-used\n"
     assert resolve_citation(store, "missing", materialized_root=materialized) == ""
 
 
@@ -245,7 +233,7 @@ def test_session_projection_routes_corpus_citations_through_the_facade(tmp_path,
         calls.append((store.root, evidence_id, materialized_root))
         return f"/materialized/{evidence_id}.md"
 
-    monkeypatch.setattr("tht.evidence.resolve_citation", fake_resolve)
+    monkeypatch.setattr("tht.evidence.session.resolve_citation", fake_resolve)
     linking = SchemaLinking(
         question="q",
         candidates=[Candidate(
@@ -257,7 +245,7 @@ def test_session_projection_routes_corpus_citations_through_the_facade(tmp_path,
         )],
     )
 
-    assert build_evidence_entries([], linking, evidence_root) == [{
+    assert project_session([], linking, evidence_root) == [{
         "id": "evi-used",
         "file": "/materialized/evi-used.md",
         "esito": "usata",
@@ -299,10 +287,8 @@ def test_session_projection_facade_preserves_outcome_precedence_and_order(tmp_pa
         )],
     )
 
-    legacy = build_evidence_entries(decisions, linking, evidence_root)
     current = project_session(decisions, linking, evidence_root)
 
-    assert current == legacy
     assert [(row["id"], row["esito"], row["decision_seq"]) for row in current] == [
         ("used", "usata", 17),
         ("accepted", "accettata", 21),
diff --git a/harness/tests/test_evidence_layout.py b/harness/tests/test_evidence_layout.py
new file mode 100644
index 00000000..bf5cb748
--- /dev/null
+++ b/harness/tests/test_evidence_layout.py
@@ -0,0 +1,40 @@
+from pathlib import Path
+
+
+HARNESS_ROOT = Path(__file__).resolve().parents[1]
+LEGACY_PATHS = (
+    "tht/ports/evidence.py",
+    "tht/adapters/evidence",
+    "tht/corpus",
+    "tht/search/evidence.py",
+    "tht/session/artifacts.py",
+)
+LEGACY_REFERENCES = (
+    "tht.ports.evidence",
+    "tht.adapters.evidence",
+    "tht.corpus",
+    "tht.search.evidence",
+    "tht.session.artifacts",
+    "build_evidence_sources",
+    "build_evidence_entries",
+)
+
+
+def test_replaced_evidence_layout_is_removed():
+    remaining = [path for path in LEGACY_PATHS if (HARNESS_ROOT / path).exists()]
+
+    assert remaining == []
+
+
+def test_production_and_tests_use_only_the_evidence_module():
+    offenders = []
+    for root in (HARNESS_ROOT / "tht", HARNESS_ROOT / "tests"):
+        for path in root.rglob("*.py"):
+            if path == Path(__file__).resolve() or "__pycache__" in path.parts:
+                continue
+            contents = path.read_text(encoding="utf-8")
+            matched = [reference for reference in LEGACY_REFERENCES if reference in contents]
+            if matched:
+                offenders.append((path.relative_to(HARNESS_ROOT).as_posix(), matched))
+
+    assert offenders == []
diff --git a/harness/tests/test_evidence_port_contract.py b/harness/tests/test_evidence_port_contract.py
index eb28fc13..81251d56 100644
--- a/harness/tests/test_evidence_port_contract.py
+++ b/harness/tests/test_evidence_port_contract.py
@@ -3,7 +3,7 @@ from datetime import UTC, datetime, timedelta, timezone
 import pytest
 from pydantic import ValidationError
 
-from tht.ports.evidence import (
+from tht.evidence.contracts import (
     AcquiredDocument,
     EvidenceSource,
     EvidenceSourceError,
diff --git a/harness/tests/test_filesystem_evidence_source.py b/harness/tests/test_filesystem_evidence_source.py
index 3f93789d..c27c35ab 100644
--- a/harness/tests/test_filesystem_evidence_source.py
+++ b/harness/tests/test_filesystem_evidence_source.py
@@ -2,8 +2,8 @@ import os
 
 import pytest
 
-from tht.adapters.evidence import FilesystemEvidenceSource
-from tht.ports.evidence import EvidenceSourceError
+from tht.evidence.adapters import FilesystemEvidenceSource
+from tht.evidence.contracts import EvidenceSourceError
 
 
 def test_filesystem_discovery_is_stable_and_acquisition_is_bounded(tmp_path):
diff --git a/harness/tests/test_http_evidence_source.py b/harness/tests/test_http_evidence_source.py
index 38883dea..4bd24d0e 100644
--- a/harness/tests/test_http_evidence_source.py
+++ b/harness/tests/test_http_evidence_source.py
@@ -4,8 +4,8 @@ from http.server import BaseHTTPRequestHandler, ThreadingHTTPServer
 
 import pytest
 
-from tht.adapters.evidence import HttpManifestEvidenceSource
-from tht.ports.evidence import EvidenceSourceError
+from tht.evidence.adapters import HttpManifestEvidenceSource
+from tht.evidence.contracts import EvidenceSourceError
 
 
 class Handler(BaseHTTPRequestHandler):
diff --git a/harness/tests/test_registry_evidence_config.py b/harness/tests/test_registry_evidence_config.py
index 358061fd..33d22a20 100644
--- a/harness/tests/test_registry_evidence_config.py
+++ b/harness/tests/test_registry_evidence_config.py
@@ -6,8 +6,8 @@ import yaml
 from pydantic import SecretStr
 from typer.testing import CliRunner
 
-from tht.adapters.evidence import HttpManifestEvidenceSource
-from tht.adapters.factory import build_evidence_sources
+from tht.evidence.adapters import HttpManifestEvidenceSource
+from tht.evidence import build_sources
 from tht.cli import app
 from tht.config import ConfigError, load_config
 
@@ -108,7 +108,7 @@ def test_signed_http_file_resolves_in_memory_and_preserves_provenance_order(tmp_
     assert_no_canaries(repr(cfg))
     assert_no_canaries(cfg.model_dump_json())
 
-    adapter = build_evidence_sources(cfg)[0]
+    adapter = build_sources(cfg.evidence)[0]
     assert isinstance(adapter, HttpManifestEvidenceSource)
     assert_no_canaries(repr(adapter))
 
diff --git a/harness/tests/test_s3_evidence_source.py b/harness/tests/test_s3_evidence_source.py
index 710b44fc..43a865c9 100644
--- a/harness/tests/test_s3_evidence_source.py
+++ b/harness/tests/test_s3_evidence_source.py
@@ -2,7 +2,7 @@ from datetime import UTC, datetime
 
 import pytest
 
-from tht.ports.evidence import EvidenceSourceError
+from tht.evidence.contracts import EvidenceSourceError
 
 
 class Body:
@@ -28,7 +28,7 @@ class Client:
 
 
 def test_s3_canonical_uri_version_fingerprint_and_closed_body():
-    from tht.adapters.evidence.s3 import S3EvidenceSource
+    from tht.evidence.adapters.s3 import S3EvidenceSource
     client = Client()
     source = S3EvidenceSource(bucket="evidence", prefix="clinical/", client=client)
     item = next(iter(source.discover()))
@@ -39,14 +39,14 @@ def test_s3_canonical_uri_version_fingerprint_and_closed_body():
 
 
 def test_s3_etag_fallback_and_bounds():
-    from tht.adapters.evidence.s3 import S3EvidenceSource
+    from tht.evidence.adapters.s3 import S3EvidenceSource
     client = Client()
     with pytest.raises(ValueError):
         S3EvidenceSource(bucket="evidence", client=client, max_objects=0)
 
 
 def test_s3_rejects_private_or_insecure_endpoint_without_explicit_opt_in():
-    from tht.adapters.evidence.s3 import S3EvidenceSource
+    from tht.evidence.adapters.s3 import S3EvidenceSource
     with pytest.raises(ValueError, match="trusted"):
         S3EvidenceSource(bucket="evidence", endpoint_url="https://127.0.0.1:9000", client=Client())
     with pytest.raises(ValueError, match="HTTPS"):
@@ -59,20 +59,20 @@ def test_s3_rejects_private_or_insecure_endpoint_without_explicit_opt_in():
 
 @pytest.mark.parametrize("bucket", ["UPPER", "bad_bucket", "-start", "end-", "a..b"])
 def test_s3_rejects_invalid_bucket_names(bucket):
-    from tht.adapters.evidence.s3 import S3EvidenceSource
+    from tht.evidence.adapters.s3 import S3EvidenceSource
     with pytest.raises(ValueError, match="bucket"):
         S3EvidenceSource(bucket=bucket, client=Client())
 
 
 @pytest.mark.parametrize("bucket", ["127.0.0.1", "192.168.1.1"])
 def test_s3_rejects_ip_shaped_bucket(bucket):
-    from tht.adapters.evidence.s3 import S3EvidenceSource
+    from tht.evidence.adapters.s3 import S3EvidenceSource
     with pytest.raises(ValueError, match="bucket"):
         S3EvidenceSource(bucket=bucket, client=Client())
 
 
 def test_s3_rejects_endpoint_query_path_fragment_and_untrusted_custom_host():
-    from tht.adapters.evidence.s3 import S3EvidenceSource
+    from tht.evidence.adapters.s3 import S3EvidenceSource
     for endpoint in ("https://s3.example.test/path", "https://s3.example.test/?x=1",
                      "https://s3.example.test/#x"):
         with pytest.raises(ValueError, match="root"):
@@ -83,7 +83,7 @@ def test_s3_rejects_endpoint_query_path_fragment_and_untrusted_custom_host():
 
 
 def test_s3_rejects_out_of_prefix_key_and_missing_validator():
-    from tht.adapters.evidence.s3 import S3EvidenceSource
+    from tht.evidence.adapters.s3 import S3EvidenceSource
     client = Client()
     client.list_objects_v2 = lambda **kwargs: {"Contents": [{"Key": "other/a.md", "ETag": '"x"'}]}
     with pytest.raises(EvidenceSourceError):
@@ -94,7 +94,7 @@ def test_s3_rejects_out_of_prefix_key_and_missing_validator():
 
 
 def test_s3_rejects_leading_slash_prefix_empty_and_control_keys():
-    from tht.adapters.evidence.s3 import S3EvidenceSource
+    from tht.evidence.adapters.s3 import S3EvidenceSource
     with pytest.raises(ValueError, match="prefix"):
         S3EvidenceSource(bucket="evidence", prefix="/clinical", client=Client())
     for key in ("", "clinical/a\x00.md", "clinical/a\x7f.md"):
@@ -106,7 +106,7 @@ def test_s3_rejects_leading_slash_prefix_empty_and_control_keys():
 
 @pytest.mark.parametrize("prefix", ["/bad", "x" * 1025, "bad\x00prefix", "bad\x7fprefix"])
 def test_s3_rejects_invalid_prefix_before_client_request(prefix):
-    from tht.adapters.evidence.s3 import S3EvidenceSource
+    from tht.evidence.adapters.s3 import S3EvidenceSource
     client = Client()
     with pytest.raises(ValueError, match="prefix"):
         S3EvidenceSource(bucket="evidence", prefix=prefix, client=client)
@@ -114,7 +114,7 @@ def test_s3_rejects_invalid_prefix_before_client_request(prefix):
 
 
 def test_s3_hard_page_limit_never_requests_page_max_plus_one():
-    from tht.adapters.evidence.s3 import S3EvidenceSource
+    from tht.evidence.adapters.s3 import S3EvidenceSource
     client = Client()
     def listing(**kwargs):
         client.list_calls += 1
@@ -128,7 +128,7 @@ def test_s3_hard_page_limit_never_requests_page_max_plus_one():
 
 
 def test_s3_acquire_rejects_exact_etag_drift_and_closes_body():
-    from tht.adapters.evidence.s3 import S3EvidenceSource
+    from tht.evidence.adapters.s3 import S3EvidenceSource
     client = Client()
     source = S3EvidenceSource(bucket="evidence", client=client)
     item = next(iter(source.discover()))
@@ -140,7 +140,7 @@ def test_s3_acquire_rejects_exact_etag_drift_and_closes_body():
 
 
 def test_s3_acquire_rejects_forged_reconstructed_item_before_get():
-    from tht.adapters.evidence.s3 import S3EvidenceSource
+    from tht.evidence.adapters.s3 import S3EvidenceSource
     client = Client()
     source = S3EvidenceSource(bucket="evidence", client=client)
     item = next(iter(source.discover()))
@@ -153,14 +153,14 @@ def test_s3_acquire_rejects_forged_reconstructed_item_before_get():
 @pytest.mark.parametrize("host", ["127.0.0.1", "10.0.0.1", "169.254.1.1", "0.0.0.0",
                                   "[::1]", "[fe80::1]", "[::]"])
 def test_s3_literal_non_global_endpoint_requires_private_opt_in(host):
-    from tht.adapters.evidence.s3 import S3EvidenceSource
+    from tht.evidence.adapters.s3 import S3EvidenceSource
     with pytest.raises(ValueError, match="private"):
         S3EvidenceSource(bucket="evidence", endpoint_url=f"https://{host}:9000",
                          trusted_endpoint=True, client=Client())
 
 
 def test_s3_size_limit_closes_body():
-    from tht.adapters.evidence.s3 import S3EvidenceSource
+    from tht.evidence.adapters.s3 import S3EvidenceSource
     client = Client()
     source = S3EvidenceSource(bucket="evidence", client=client, max_bytes=4)
     item = next(iter(source.discover()))
diff --git a/harness/tests/test_semantic_kind_isolation.py b/harness/tests/test_semantic_kind_isolation.py
index 5f000a46..9a5403df 100644
--- a/harness/tests/test_semantic_kind_isolation.py
+++ b/harness/tests/test_semantic_kind_isolation.py
@@ -6,10 +6,10 @@ from datetime import UTC, datetime
 
 from tht.adapters.vector.qdrant import point_id
 from tht.cli.vector_cmd import sync_canonical_records
-from tht.corpus.chunk import ChunkPolicy
-from tht.corpus.models import CanonicalChunk
-from tht.corpus.pipeline import CorpusPipeline
-from tht.corpus.store import CorpusStore
+from tht.evidence.corpus.chunk import ChunkPolicy
+from tht.evidence.corpus.models import CanonicalChunk
+from tht.evidence.corpus.pipeline import CorpusPipeline
+from tht.evidence.corpus.store import CorpusStore
 from tht.memory import MemoryRecord, save_one_memory
 from tht.mschema.models import (
     Annotations,
diff --git a/harness/tests/test_workflow_observable_contract.py b/harness/tests/test_workflow_observable_contract.py
index 9382a527..29d90002 100644
--- a/harness/tests/test_workflow_observable_contract.py
+++ b/harness/tests/test_workflow_observable_contract.py
@@ -6,8 +6,8 @@ import hashlib
 
 import pytest
 
-from tht.corpus.models import CanonicalDocument, CorpusManifest
-from tht.corpus.store import CorpusStore
+from tht.evidence.corpus.models import CanonicalDocument, CorpusManifest
+from tht.evidence.corpus.store import CorpusStore
 from tht.decisions import DecisionRecord, append_decision
 from tht.evidence import project_session
 from tht.phase import current_phase, effective_decisions
diff --git a/harness/tht/adapters/evidence/__init__.py b/harness/tht/adapters/evidence/__init__.py
deleted file mode 100644
index 805c886b..00000000
--- a/harness/tht/adapters/evidence/__init__.py
+++ /dev/null
@@ -1,7 +0,0 @@
-"""Evidence source adapter implementations."""
-
-from tht.adapters.evidence.filesystem import FilesystemEvidenceSource
-from tht.adapters.evidence.http import HttpManifestEvidenceSource
-from tht.adapters.evidence.s3 import S3EvidenceSource
-
-__all__ = ["FilesystemEvidenceSource", "HttpManifestEvidenceSource", "S3EvidenceSource"]
diff --git a/harness/tht/adapters/factory.py b/harness/tht/adapters/factory.py
index faa465b2..d21f1731 100644
--- a/harness/tht/adapters/factory.py
+++ b/harness/tht/adapters/factory.py
@@ -42,11 +42,4 @@ def build_vector_store(cfg: Config, *, require_write: bool = False) -> VectorSto
             raise ConfigError(f"Adapter vector non supportato: {other}")
 
 
-def build_evidence_sources(cfg: Config):
-    """Compatibility shim for callers not yet migrated to ``tht.evidence``."""
-    from tht.evidence import build_sources
-
-    return build_sources(cfg.evidence)
-
-
-__all__ = ["build_dwh", "build_evidence_sources", "build_vector_store"]
+__all__ = ["build_dwh", "build_vector_store"]
diff --git a/harness/tht/cli/preprocess_cmd.py b/harness/tht/cli/preprocess_cmd.py
index aa6f1238..7190c5c8 100644
--- a/harness/tht/cli/preprocess_cmd.py
+++ b/harness/tht/cli/preprocess_cmd.py
@@ -96,8 +96,8 @@ def run_from_config(config: Path, *, dry_run: bool = False, resume: str | None =
     from tht.adapters.factory import build_vector_store
     from tht.cli.schema_cmd import _load_config_or_exit
     from tht.cli.vector_cmd import make_embedder
-    from tht.corpus.chunk import ChunkPolicy
-    from tht.corpus.store import CorpusStore
+    from tht.evidence.corpus.chunk import ChunkPolicy
+    from tht.evidence.corpus.store import CorpusStore
     from tht.evidence import build_preprocessing_pipeline, build_sources
 
     cfg = _load_config_or_exit(config)
@@ -130,8 +130,8 @@ def gc_from_config(config: Path, *, dry_run: bool = False):
     from tht.adapters.factory import build_vector_store
     from tht.cli.schema_cmd import _load_config_or_exit
     from tht.cli.vector_cmd import make_embedder
-    from tht.corpus.chunk import ChunkPolicy
-    from tht.corpus.store import CorpusStore
+    from tht.evidence.corpus.chunk import ChunkPolicy
+    from tht.evidence.corpus.store import CorpusStore
     from tht.evidence import build_preprocessing_pipeline, build_sources
 
     cfg = _load_config_or_exit(config)
diff --git a/harness/tht/corpus/__init__.py b/harness/tht/corpus/__init__.py
deleted file mode 100644
index 34ac3790..00000000
--- a/harness/tht/corpus/__init__.py
+++ /dev/null
@@ -1 +0,0 @@
-"""Canonical, transport-independent Evidence corpus."""
diff --git a/harness/tht/evidence/__init__.py b/harness/tht/evidence/__init__.py
index d2756b57..fba55717 100644
--- a/harness/tht/evidence/__init__.py
+++ b/harness/tht/evidence/__init__.py
@@ -1,14 +1,4 @@
-"""Cohesive public entrypoint for Evidence domain capabilities.
-
-The implementation is introduced beside the legacy module layout so production callers can
-migrate one path at a time. These functions deliberately preserve the existing objects, ordering,
-and exceptions; they do not define a cross-domain service protocol.
-"""
-
-from __future__ import annotations
-
-from pathlib import Path
-from typing import TYPE_CHECKING
+"""Cohesive public entrypoint for Evidence domain capabilities."""
 
 from tht.evidence.acquisition import acquire, discover
 from tht.evidence.contracts import (
@@ -22,145 +12,17 @@ from tht.evidence.contracts import (
     validate_namespaced_value,
     validate_safe_metadata,
 )
-
-if TYPE_CHECKING:
-    from tht.config import EvidenceSourcesConfig
-    from tht.corpus.chunk import ChunkPolicy
-    from tht.corpus.pipeline import CorpusPipeline
-    from tht.corpus.store import CorpusStore
-    from tht.decisions import DecisionRecord
-    from tht.evidence.preprocessing import EvidenceEmbedder
-    from tht.ports.vector import VectorStore
-    from tht.search.evidence import ActiveEvidenceSearcher
-    from tht.session.models import SchemaLinking
-
-
-def build_sources(evidence: "EvidenceSourcesConfig | None") -> list[EvidenceSource]:
-    """Build configured Evidence source adapters in the existing deterministic order."""
-    from tht.evidence.sources import build_sources as build_configured_sources
-
-    return build_configured_sources(evidence)
-
-
-def build_preprocessing_pipeline(
-    *,
-    store: "CorpusStore",
-    sources: list[EvidenceSource],
-    embedder: "EvidenceEmbedder",
-    vector_store: "VectorStore",
-    embedding_model: str,
-    embedding_dimensions: int,
-    chunk_policy: "ChunkPolicy",
-    pipeline_version: str,
-    retain_published_generations: int = 3,
-    workspace_id: str | None = None,
-) -> "CorpusPipeline":
-    """Construct the Evidence preprocessing use case from core-owned infrastructure."""
-    from tht.evidence.preprocessing import build_preprocessing_pipeline as build_pipeline
-
-    return build_pipeline(
-        store=store,
-        sources=sources,
-        embedder=embedder,
-        vector_store=vector_store,
-        embedding_model=embedding_model,
-        embedding_dimensions=embedding_dimensions,
-        chunk_policy=chunk_policy,
-        pipeline_version=pipeline_version,
-        retain_published_generations=retain_published_generations,
-        workspace_id=workspace_id,
-    )
-
-
-def active_searcher(
-    cfg,
-    delegate,
-    *,
-    workspace_id: str | None = None,
-) -> ActiveEvidenceSearcher:
-    """Bind vector search to the atomically ACTIVE Evidence corpus generation."""
-    from tht.search.evidence import active_searcher as legacy_active_searcher
-
-    return legacy_active_searcher(cfg, delegate, workspace_id=workspace_id)
-
-
-def validate_corpus_workspace(cfg, workspace_id: str) -> None:
-    """Validate persisted Evidence corpus ownership before runtime retrieval setup."""
-    from tht.search.evidence import validate_corpus_workspace as legacy_validate
-
-    legacy_validate(cfg, workspace_id)
-
-
-def build_retrieval_entries(results, *, excerpt_chars: int) -> list[dict]:
-    """Project ordered Evidence search hits into the existing retrieval-pack shape."""
-    return [
-        {
-            "title": result.label,
-            "status": result.status,
-            "excerpt": result.content[:excerpt_chars],
-        }
-        for result in results
-    ]
-
-
-def resolve_citation(
-    store: "CorpusStore",
-    evidence_id: str,
-    *,
-    materialized_root: Path | None = None,
-) -> str:
-    """Resolve an Evidence identifier to its immutable ACTIVE materialization."""
-    from tht.search.evidence import resolve_evidence_file
-
-    return resolve_evidence_file(
-        store,
-        evidence_id,
-        materialized_root=materialized_root,
-    )
-
-
-def _resolve_session_citation(evidence_root: Path, evidence_id: str) -> str:
-    # New deployments resolve only immutable materialized files from ACTIVE. Keep the
-    # curated-tree fallback for sessions created before a canonical corpus exists.
-    corpus_root = evidence_root.parent.parent / "corpus"
-    if corpus_root.exists():
-        from tht.corpus.store import CorpusStore
-
-        return resolve_citation(
-            CorpusStore(corpus_root),
-            evidence_id,
-            materialized_root=evidence_root.parent / ".materialized-evidence",
-        )
-    for match in evidence_root.rglob(f"{evidence_id}.md"):
-        return str(match)
-    return ""
-
-
-def project_session(
-    decisions: list["DecisionRecord"],
-    linking: "SchemaLinking",
-    evidence_root: Path,
-) -> list[dict]:
-    """Project cited and reviewed Evidence into the existing session artifact shape."""
-    entries: dict[str, dict] = {}
-    for candidate in linking.candidates:
-        for evidence_id in candidate.evidence:
-            entries.setdefault(evidence_id, {
-                "id": evidence_id,
-                "file": _resolve_session_citation(evidence_root, evidence_id),
-                "esito": "usata",
-                "decision_seq": candidate.decision_seq,
-            })
-    for decision in decisions:
-        if decision.type not in ("evidence_accepted", "evidence_rejected"):
-            continue
-        entries[decision.subject] = {
-            "id": decision.subject,
-            "file": _resolve_session_citation(evidence_root, decision.subject),
-            "esito": "accettata" if decision.type == "evidence_accepted" else "scartata",
-            "decision_seq": decision.seq,
-        }
-    return list(entries.values())
+from tht.evidence.preprocessing import EvidenceEmbedder, build_preprocessing_pipeline
+from tht.evidence.search import (
+    ActiveEvidenceSearcher,
+    CorpusWorkspaceMismatchError,
+    active_searcher,
+    build_retrieval_entries,
+    resolve_citation,
+    validate_corpus_workspace,
+)
+from tht.evidence.session import project_session
+from tht.evidence.sources import build_sources
 
 
 __all__ = [
@@ -168,7 +30,10 @@ __all__ = [
     "EvidenceSource",
     "EvidenceSourceError",
     "EvidenceSourceErrorCategory",
+    "EvidenceEmbedder",
     "SourceObject",
+    "ActiveEvidenceSearcher",
+    "CorpusWorkspaceMismatchError",
     "acquire",
     "active_searcher",
     "build_preprocessing_pipeline",
diff --git a/harness/tht/evidence/adapters/__init__.py b/harness/tht/evidence/adapters/__init__.py
new file mode 100644
index 00000000..c6e09780
--- /dev/null
+++ b/harness/tht/evidence/adapters/__init__.py
@@ -0,0 +1,7 @@
+"""Evidence-owned source adapter implementations."""
+
+from tht.evidence.adapters.filesystem import FilesystemEvidenceSource
+from tht.evidence.adapters.http import HttpManifestEvidenceSource
+from tht.evidence.adapters.s3 import S3EvidenceSource
+
+__all__ = ["FilesystemEvidenceSource", "HttpManifestEvidenceSource", "S3EvidenceSource"]
diff --git a/harness/tht/adapters/evidence/filesystem.py b/harness/tht/evidence/adapters/filesystem.py
similarity index 99%
rename from harness/tht/adapters/evidence/filesystem.py
rename to harness/tht/evidence/adapters/filesystem.py
index ae415607..50fa3662 100644
--- a/harness/tht/adapters/evidence/filesystem.py
+++ b/harness/tht/evidence/adapters/filesystem.py
@@ -1,4 +1,4 @@
-"""Contained, race-safe filesystem Evidence source."""
+"""Evidence-owned, race-safe filesystem source."""
 
 import hashlib
 import os
diff --git a/harness/tht/adapters/evidence/http.py b/harness/tht/evidence/adapters/http.py
similarity index 99%
rename from harness/tht/adapters/evidence/http.py
rename to harness/tht/evidence/adapters/http.py
index ff423d22..f8614bfc 100644
--- a/harness/tht/adapters/evidence/http.py
+++ b/harness/tht/evidence/adapters/http.py
@@ -1,4 +1,4 @@
-"""Explicit-manifest HTTP Evidence source with SSRF-safe bounded acquisition."""
+"""Evidence-owned explicit-manifest HTTP source with SSRF-safe bounded acquisition."""
 
 import hashlib
 import ipaddress
diff --git a/harness/tht/adapters/evidence/s3.py b/harness/tht/evidence/adapters/s3.py
similarity index 98%
rename from harness/tht/adapters/evidence/s3.py
rename to harness/tht/evidence/adapters/s3.py
index cbbfee90..5239a5f6 100644
--- a/harness/tht/adapters/evidence/s3.py
+++ b/harness/tht/evidence/adapters/s3.py
@@ -1,4 +1,4 @@
-"""Bounded S3-compatible Evidence source using the supported boto3 client."""
+"""Evidence-owned bounded S3-compatible source using the supported boto3 client."""
 
 import hashlib
 import ipaddress
diff --git a/harness/tht/evidence/corpus/__init__.py b/harness/tht/evidence/corpus/__init__.py
new file mode 100644
index 00000000..6ee33155
--- /dev/null
+++ b/harness/tht/evidence/corpus/__init__.py
@@ -0,0 +1 @@
+"""Evidence-owned canonical, transport-independent corpus."""
diff --git a/harness/tht/corpus/chunk.py b/harness/tht/evidence/corpus/chunk.py
similarity index 94%
rename from harness/tht/corpus/chunk.py
rename to harness/tht/evidence/corpus/chunk.py
index 3c297435..5c868295 100644
--- a/harness/tht/corpus/chunk.py
+++ b/harness/tht/evidence/corpus/chunk.py
@@ -1,11 +1,11 @@
-"""Versioned deterministic chunking for canonical corpus documents."""
+"""Evidence-owned deterministic chunking for canonical corpus documents."""
 
 import hashlib
 import json
 import re
 from dataclasses import asdict, dataclass
 
-from tht.corpus.models import CanonicalChunk, CanonicalDocument
+from tht.evidence.corpus.models import CanonicalChunk, CanonicalDocument
 
 
 @dataclass(frozen=True, slots=True)
diff --git a/harness/tht/corpus/models.py b/harness/tht/evidence/corpus/models.py
similarity index 98%
rename from harness/tht/corpus/models.py
rename to harness/tht/evidence/corpus/models.py
index d398124c..22afca93 100644
--- a/harness/tht/corpus/models.py
+++ b/harness/tht/evidence/corpus/models.py
@@ -1,4 +1,4 @@
-"""Immutable records emitted by the Evidence preprocessing pipeline."""
+"""Evidence-owned immutable records emitted by preprocessing."""
 
 import hashlib
 import re
diff --git a/harness/tht/corpus/normalize.py b/harness/tht/evidence/corpus/normalize.py
similarity index 97%
rename from harness/tht/corpus/normalize.py
rename to harness/tht/evidence/corpus/normalize.py
index 22d4ac21..b55c6e88 100644
--- a/harness/tht/corpus/normalize.py
+++ b/harness/tht/evidence/corpus/normalize.py
@@ -1,4 +1,4 @@
-"""Pure, deterministic conversion of acquired bytes into canonical text."""
+"""Evidence-owned deterministic conversion of acquired bytes into canonical text."""
 
 import hashlib
 import re
@@ -10,7 +10,7 @@ from pydantic import JsonValue, TypeAdapter, ValidationError
 from yaml.events import AliasEvent
 from yaml.nodes import MappingNode
 
-from tht.corpus.models import CanonicalDocument
+from tht.evidence.corpus.models import CanonicalDocument
 from tht.evidence.contracts import AcquiredDocument, canonical_provenance_uri
 
 
diff --git a/harness/tht/corpus/pipeline.py b/harness/tht/evidence/corpus/pipeline.py
similarity index 99%
rename from harness/tht/corpus/pipeline.py
rename to harness/tht/evidence/corpus/pipeline.py
index 7a55012d..23b67219 100644
--- a/harness/tht/corpus/pipeline.py
+++ b/harness/tht/evidence/corpus/pipeline.py
@@ -1,4 +1,4 @@
-"""Incremental Evidence preprocessing with generation-isolated vector writes."""
+"""Evidence-owned incremental preprocessing with generation-isolated vector writes."""
 
 from __future__ import annotations
 
@@ -11,10 +11,10 @@ from dataclasses import asdict, dataclass, field
 from datetime import UTC
 from pathlib import Path
 
-from tht.corpus.chunk import ChunkPolicy, chunk
-from tht.corpus.models import CanonicalChunk, CanonicalDocument, CorpusManifest
-from tht.corpus.normalize import normalize
-from tht.corpus.store import CorpusStore
+from tht.evidence.corpus.chunk import ChunkPolicy, chunk
+from tht.evidence.corpus.models import CanonicalChunk, CanonicalDocument, CorpusManifest
+from tht.evidence.corpus.normalize import normalize
+from tht.evidence.corpus.store import CorpusStore
 import tht.evidence.acquisition as evidence_acquisition
 from tht.evidence.contracts import EvidenceSource, SourceObject, canonical_provenance_uri
 from tht.ports.vector import VectorStore, VectorWriteRecord
diff --git a/harness/tht/corpus/store.py b/harness/tht/evidence/corpus/store.py
similarity index 98%
rename from harness/tht/corpus/store.py
rename to harness/tht/evidence/corpus/store.py
index 0202e566..af28b9a8 100644
--- a/harness/tht/corpus/store.py
+++ b/harness/tht/evidence/corpus/store.py
@@ -1,4 +1,4 @@
-"""Durable immutable corpus generations and an atomic ACTIVE pointer."""
+"""Evidence-owned immutable corpus generations and an atomic ACTIVE pointer."""
 
 from __future__ import annotations
 
@@ -15,7 +15,7 @@ from datetime import UTC, datetime
 from pathlib import Path
 from contextlib import contextmanager
 
-from tht.corpus.models import CorpusManifest
+from tht.evidence.corpus.models import CorpusManifest
 
 
 _GENERATION = re.compile(r"^gen:[0-9a-f]{32}$")
diff --git a/harness/tht/evidence/preprocessing.py b/harness/tht/evidence/preprocessing.py
index e1bf29e2..fd6c0c5e 100644
--- a/harness/tht/evidence/preprocessing.py
+++ b/harness/tht/evidence/preprocessing.py
@@ -2,9 +2,9 @@
 
 from typing import Protocol
 
-from tht.corpus.chunk import ChunkPolicy
-from tht.corpus.pipeline import CorpusPipeline
-from tht.corpus.store import CorpusStore
+from tht.evidence.corpus.chunk import ChunkPolicy
+from tht.evidence.corpus.pipeline import CorpusPipeline
+from tht.evidence.corpus.store import CorpusStore
 from tht.evidence.contracts import EvidenceSource
 from tht.ports.vector import VectorStore
 
diff --git a/harness/tht/search/evidence.py b/harness/tht/evidence/search.py
similarity index 88%
rename from harness/tht/search/evidence.py
rename to harness/tht/evidence/search.py
index 077b3355..108dc229 100644
--- a/harness/tht/search/evidence.py
+++ b/harness/tht/evidence/search.py
@@ -1,8 +1,8 @@
-"""Runtime Evidence lookup bound to the atomically active corpus generation."""
+"""Evidence-owned runtime lookup bound to the atomically active corpus generation."""
 
 import re
 
-from tht.corpus.store import CorpusStore
+from tht.evidence.corpus.store import CorpusStore
 
 
 class CorpusWorkspaceMismatchError(RuntimeError):
@@ -96,7 +96,7 @@ def validate_corpus_workspace(cfg, workspace_id: str) -> None:
             )
 
 
-def resolve_evidence_file(
+def resolve_citation(
     store: CorpusStore, evidence_id: str, *, materialized_root=None,
 ) -> str:
     with store.writer_lock():
@@ -114,3 +114,25 @@ def resolve_evidence_file(
                 )
                 return str(path) if path else ""
     return ""
+
+
+def build_retrieval_entries(results, *, excerpt_chars: int) -> list[dict]:
+    """Project ordered Evidence search hits into the retrieval-pack shape."""
+    return [
+        {
+            "title": result.label,
+            "status": result.status,
+            "excerpt": result.content[:excerpt_chars],
+        }
+        for result in results
+    ]
+
+
+__all__ = [
+    "ActiveEvidenceSearcher",
+    "CorpusWorkspaceMismatchError",
+    "active_searcher",
+    "build_retrieval_entries",
+    "resolve_citation",
+    "validate_corpus_workspace",
+]
diff --git a/harness/tht/evidence/session.py b/harness/tht/evidence/session.py
new file mode 100644
index 00000000..37f27066
--- /dev/null
+++ b/harness/tht/evidence/session.py
@@ -0,0 +1,59 @@
+"""Evidence-specific projection into persisted session artifacts."""
+
+from pathlib import Path
+from typing import TYPE_CHECKING
+
+from tht.evidence.corpus.store import CorpusStore
+from tht.evidence.search import resolve_citation
+
+if TYPE_CHECKING:
+    from tht.decisions import DecisionRecord
+    from tht.session.models import SchemaLinking
+
+
+def _resolve_session_citation(evidence_root: Path, evidence_id: str) -> str:
+    # New deployments resolve only immutable materialized files from ACTIVE. Keep the
+    # curated-tree fallback for sessions created before a canonical corpus exists.
+    corpus_root = evidence_root.parent.parent / "corpus"
+    if corpus_root.exists():
+        return resolve_citation(
+            CorpusStore(corpus_root),
+            evidence_id,
+            materialized_root=evidence_root.parent / ".materialized-evidence",
+        )
+    for match in evidence_root.rglob(f"{evidence_id}.md"):
+        return str(match)
+    return ""
+
+
+def project_session(
+    decisions: list["DecisionRecord"],
+    linking: "SchemaLinking",
+    evidence_root: Path,
+) -> list[dict]:
+    """Project cited and reviewed Evidence into the session artifact shape."""
+    entries: dict[str, dict] = {}
+    for candidate in linking.candidates:
+        for evidence_id in candidate.evidence:
+            entries.setdefault(
+                evidence_id,
+                {
+                    "id": evidence_id,
+                    "file": _resolve_session_citation(evidence_root, evidence_id),
+                    "esito": "usata",
+                    "decision_seq": candidate.decision_seq,
+                },
+            )
+    for decision in decisions:
+        if decision.type not in ("evidence_accepted", "evidence_rejected"):
+            continue
+        entries[decision.subject] = {
+            "id": decision.subject,
+            "file": _resolve_session_citation(evidence_root, decision.subject),
+            "esito": "accettata" if decision.type == "evidence_accepted" else "scartata",
+            "decision_seq": decision.seq,
+        }
+    return list(entries.values())
+
+
+__all__ = ["project_session"]
diff --git a/harness/tht/evidence/sources.py b/harness/tht/evidence/sources.py
index 4c2a6c87..dc81f593 100644
--- a/harness/tht/evidence/sources.py
+++ b/harness/tht/evidence/sources.py
@@ -1,10 +1,16 @@
 """Construction of configured Evidence source adapters."""
 
-from tht.adapters.evidence import FilesystemEvidenceSource, HttpManifestEvidenceSource
-from tht.adapters.evidence.s3 import S3EvidenceSource
-from tht.config import ConfigError, EvidenceSourcesConfig
+from __future__ import annotations
+
+from typing import TYPE_CHECKING
+
+from tht.evidence.adapters import FilesystemEvidenceSource, HttpManifestEvidenceSource
+from tht.evidence.adapters.s3 import S3EvidenceSource
 from tht.evidence.contracts import EvidenceSource
 
+if TYPE_CHECKING:
+    from tht.config import EvidenceSourcesConfig
+
 
 def build_sources(evidence: EvidenceSourcesConfig | None) -> list[EvidenceSource]:
     """Build configured Evidence adapters in the existing deterministic order."""
@@ -59,6 +65,8 @@ def build_sources(evidence: EvidenceSourcesConfig | None) -> list[EvidenceSource
                     )
                 )
             case other:  # pragma: no cover - Pydantic rejects unsupported discriminators.
+                from tht.config import ConfigError
+
                 raise ConfigError(f"Adapter evidence non supportato: {other}")
     return sources
 
diff --git a/harness/tht/ports/evidence.py b/harness/tht/ports/evidence.py
deleted file mode 100644
index a56a1a6b..00000000
--- a/harness/tht/ports/evidence.py
+++ /dev/null
@@ -1,31 +0,0 @@
-"""Legacy import path for Evidence contracts.
-
-New production code imports the leaf contracts from ``tht.evidence.contracts``. This one-way
-compatibility shim remains only until the old Evidence layout is removed.
-"""
-
-from tht.evidence.contracts import (
-    AcquiredDocument,
-    EvidenceSource,
-    EvidenceSourceError,
-    EvidenceSourceErrorCategory,
-    SourceObject,
-    canonical_provenance_uri,
-    normalize_aware_datetime,
-    validate_canonical_uri,
-    validate_namespaced_value,
-    validate_safe_metadata,
-)
-
-__all__ = [
-    "AcquiredDocument",
-    "EvidenceSource",
-    "EvidenceSourceError",
-    "EvidenceSourceErrorCategory",
-    "SourceObject",
-    "canonical_provenance_uri",
-    "normalize_aware_datetime",
-    "validate_canonical_uri",
-    "validate_namespaced_value",
-    "validate_safe_metadata",
-]
diff --git a/harness/tht/session/artifacts.py b/harness/tht/session/artifacts.py
deleted file mode 100644
index 159aa3e6..00000000
--- a/harness/tht/session/artifacts.py
+++ /dev/null
@@ -1,17 +0,0 @@
-"""Legacy session-artifact entrypoints retained during the Evidence migration."""
-
-from pathlib import Path
-
-from tht.decisions import DecisionRecord
-from tht.session.models import SchemaLinking
-
-
-def build_evidence_entries(
-    decisions: list[DecisionRecord],
-    linking: SchemaLinking,
-    evidence_root: Path,
-) -> list[dict]:
-    """Compatibility shim for callers not yet migrated to ``tht.evidence``."""
-    from tht.evidence import project_session
-
-    return project_session(decisions, linking, evidence_root)