diff --git a/modules/cloudflare-pages/.dagger/src/cloudflare_pages/api.py b/modules/cloudflare-pages/.dagger/src/cloudflare_pages/api.py
index b76a6df..8e9764f 100644
--- a/modules/cloudflare-pages/.dagger/src/cloudflare_pages/api.py
+++ b/modules/cloudflare-pages/.dagger/src/cloudflare_pages/api.py
@@ -16,6 +16,7 @@
     CreatedDeployment,
     DeploymentsResponse,
     GitHubEvidence,
+    ListedPagesDeployment,
     PagesDeployment,
     PagesProject,
     PagesTarget,
@@ -25,6 +26,7 @@
 
 API_ORIGIN: Final = "https://api.cloudflare.com/client/v4"
 DEPLOYMENT_PAGE_SIZE: Final = 10
+PRE_DEPLOYMENT_STAGES: Final = frozenset({"queued", "initialize", "clone_repo", "build"})
 ACCOUNT_REF_PATTERN: Final = re.compile(r"[A-Za-z0-9]{1,32}")
 CONTROL_PATTERN: Final = re.compile(r"[\x00-\x1f\x7f]+")
 BEARER_PATTERN: Final = re.compile(r"(?i)bearer\s+\S+")
@@ -141,14 +143,10 @@ def select_deployment(
 ) -> PagesDeployment | None:
     """Select one exact successful direct upload or signal convergence."""
     _require_pagination(response)
-    matching = tuple(
-        item
-        for item in response.result
-        if _deployment_matches(item, expected_sha, expected_deployment_id)
-    )
-    if not matching:
+    candidate = _matching_candidate(response.result, expected_sha, expected_deployment_id)
+    if candidate is None:
         return None
-    return _qualified_deployment(matching[0], target, expected_project_id)
+    return _qualified_deployment(_strict_deployment(candidate), target, expected_project_id)
 
 
 def sanitize_error(error: ApiProblem) -> str:
@@ -356,13 +354,13 @@ def _qualified_deployment(
 ) -> PagesDeployment | None:
     _require_deployment_identity(deployment, target, project_id)
     stage = deployment.latest_stage
+    if stage.status in ("failure", "canceled"):
+        raise CloudflarePolicyError("Cloudflare deployment failed")
+    if stage.name in PRE_DEPLOYMENT_STAGES:
+        return None
     if stage.name != "deploy":
         raise CloudflarePolicyError("Cloudflare deployment identity differs")
-    if stage.status in ("idle", "active"):
-        return None
-    if stage.status != "success":
-        raise CloudflarePolicyError("Cloudflare deployment failed")
-    return deployment
+    return deployment if stage.status == "success" else None
 
 
 def _require_deployment_identity(
@@ -395,20 +393,38 @@ def _valid_deployment_url(value: str, target: PagesTarget, short_id: str) -> boo
         parsed.hostname,
         parsed.username,
         parsed.password,
+        parsed.path,
         parsed.query,
         parsed.fragment,
         parsed.port,
     )
-    return identity == ("https", hostname, None, None, "", "", None)
+    return identity == ("https", hostname, None, None, "", "", "", None)
 
 
 def _deployment_matches(
-    deployment: PagesDeployment, source_sha: str, deployment_id: str | None
+    deployment: ListedPagesDeployment, source_sha: str, deployment_id: str | None
 ) -> bool:
     sha_matches = _deployment_sha(deployment) == source_sha
     return sha_matches and (deployment_id is None or deployment.id == deployment_id)
 
 
+def _matching_candidate(
+    deployments: tuple[ListedPagesDeployment, ...], source_sha: str, deployment_id: str | None
+) -> ListedPagesDeployment | None:
+    matching = tuple(
+        item for item in deployments if _deployment_matches(item, source_sha, deployment_id)
+    )
+    return _one_matching_deployment(matching, deployment_id) if matching else None
+
+
+def _one_matching_deployment(
+    matching: tuple[ListedPagesDeployment, ...], deployment_id: str | None
+) -> ListedPagesDeployment:
+    if deployment_id is not None and len(matching) != 1:
+        raise CloudflarePolicyError("Cloudflare deployment identity differs")
+    return matching[0]
+
+
 def _require_source_binding(owner: str, repository: str, target: PagesTarget) -> None:
     expected = (target.repository.owner, target.repository.name)
     if (owner, repository) != expected:
@@ -423,10 +439,17 @@ def _require_pagination(response: DeploymentsResponse) -> None:
         raise CloudflarePolicyError("Cloudflare deployment pagination differs")
 
 
-def _deployment_sha(deployment: PagesDeployment) -> str:
+def _deployment_sha(deployment: ListedPagesDeployment) -> str:
     return deployment.deployment_trigger.metadata.commit_hash
 
 
+def _strict_deployment(deployment: ListedPagesDeployment) -> PagesDeployment:
+    try:
+        return PagesDeployment.model_validate_json(deployment.model_dump_json())
+    except (ValidationError, ValueError, TypeError):
+        raise CloudflarePolicyError("Cloudflare response schema mismatch") from None
+
+
 def _require_account_ref(value: str) -> None:
     if ACCOUNT_REF_PATTERN.fullmatch(value) is None:
         raise CloudflarePolicyError("Cloudflare account identity is malformed")
diff --git a/modules/cloudflare-pages/.dagger/src/cloudflare_pages/models.py b/modules/cloudflare-pages/.dagger/src/cloudflare_pages/models.py
index 46c4341..13f8f83 100644
--- a/modules/cloudflare-pages/.dagger/src/cloudflare_pages/models.py
+++ b/modules/cloudflare-pages/.dagger/src/cloudflare_pages/models.py
@@ -18,6 +18,7 @@
 )
 CLOSED_MODEL: Final = ConfigDict(extra="forbid", frozen=True, strict=True)
 FULL_SHA_TEXT: Final = r"\A[0-9a-f]{40}\z"
+PAGES_COMMIT_SHA_TEXT: Final = r"\A(?:[0-9a-f]{40})?\z"
 NUMERIC_ID_TEXT: Final = r"\A[1-9][0-9]*\z"
 TIMESTAMP_TEXT: Final = r"\A\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}(?:\.\d+)?Z\z"
 DEPLOY_ROOT_PATTERN: Final = re.compile(r"[A-Za-z0-9][A-Za-z0-9._-]{0,63}")
@@ -124,6 +125,14 @@ class DeploymentMetadata(ClosedModel):  # type: ignore[explicit-any]  # Pydantic
     commit_dirty: bool
 
 
+class ListedDeploymentMetadata(ClosedModel):  # type: ignore[explicit-any]  # Pydantic v2 base stub
+    """Provider-list metadata including Cloudflare's historical empty hash."""
+
+    branch: str
+    commit_hash: str = Field(pattern=PAGES_COMMIT_SHA_TEXT)
+    commit_dirty: bool
+
+
 class DeploymentTrigger(ClosedModel):  # type: ignore[explicit-any]  # Pydantic v2 base stub
     """Documented direct-upload trigger and source metadata."""
 
@@ -131,6 +140,13 @@ class DeploymentTrigger(ClosedModel):  # type: ignore[explicit-any]  # Pydantic
     metadata: DeploymentMetadata
 
 
+class ListedDeploymentTrigger(ClosedModel):  # type: ignore[explicit-any]  # Pydantic v2 base stub
+    """Projected trigger for a Pages deployment-list row."""
+
+    type: str
+    metadata: ListedDeploymentMetadata
+
+
 class PagesDeployment(ClosedModel):  # type: ignore[explicit-any]  # Pydantic v2 base stub
     """Projected raw deployment fields needed for exact verification."""
 
@@ -144,6 +160,19 @@ class PagesDeployment(ClosedModel):  # type: ignore[explicit-any]  # Pydantic v2
     deployment_trigger: DeploymentTrigger
 
 
+class ListedPagesDeployment(ClosedModel):  # type: ignore[explicit-any]  # Pydantic v2 base stub
+    """Strict provider-list row awaiting exact-SHA candidate promotion."""
+
+    id: str
+    short_id: str = Field(pattern=r"\A[a-f0-9]{8}\z")
+    url: str
+    project_id: str
+    project_name: str
+    environment: Literal["production", "preview"]
+    latest_stage: DeploymentStage
+    deployment_trigger: ListedDeploymentTrigger
+
+
 class ResultInfo(ClosedModel):  # type: ignore[explicit-any]  # Pydantic v2 base stub
     """Cloudflare list pagination returned for the fixed first page."""
 
@@ -168,7 +197,7 @@ class DeploymentsResponse(ClosedModel):  # type: ignore[explicit-any]  # Pydanti
 
     errors: tuple[ApiProblem, ...]
     messages: tuple[ApiProblem, ...]
-    result: tuple[PagesDeployment, ...]
+    result: tuple[ListedPagesDeployment, ...]
     success: bool
     result_info: ResultInfo
 
diff --git a/modules/cloudflare-pages/.dagger/tests/test_api.py b/modules/cloudflare-pages/.dagger/tests/test_api.py
index cf5d076..ce591d4 100644
--- a/modules/cloudflare-pages/.dagger/tests/test_api.py
+++ b/modules/cloudflare-pages/.dagger/tests/test_api.py
@@ -196,7 +196,7 @@ def test_should_wait_for_exact_full_sha_and_successful_deploy_stage() -> None:
     (
         ("environment", "preview"),
         ("project_name", "almamesh"),
-        ("latest_stage", {"name": "build", "status": "success"}),
+        ("latest_stage", {"name": "promote", "status": "success"}),
         (
             "deployment_trigger",
             {
@@ -225,6 +225,63 @@ def test_should_ignore_wrong_sha_while_provider_converges() -> None:
     assert select_deployment(response, _target(), FULL_SHA, PROJECT_ID) is None
 
 
+@pytest.mark.parametrize(
+    ("name", "status"),
+    (("queued", "idle"), ("initialize", "active"), ("clone_repo", "success"), ("build", "active")),
+)
+def test_should_wait_for_recognized_predeploy_stage(name: str, status: str) -> None:
+    # Given
+    deployment = _deployment()
+    deployment["latest_stage"] = {"name": name, "status": status}
+    response = parse_deployments_response(_deployments_payload(deployment))
+
+    # When / Then
+    assert select_deployment(response, _target(), FULL_SHA, PROJECT_ID) is None
+
+
+def test_should_ignore_historical_empty_sha_even_for_requested_deployment_id() -> None:
+    # Given
+    legacy = _deployment("")
+    deployment_id = legacy["id"]
+    assert isinstance(deployment_id, str)
+    response = parse_deployments_response(_deployments_payload(legacy))
+
+    # When
+    selected = select_deployment(response, _target(), FULL_SHA, PROJECT_ID, deployment_id)
+
+    # Then
+    assert selected is None
+
+
+@pytest.mark.parametrize("commit_sha", (None, " ", "a" * 39, "A" * 40, "g" * 40))
+def test_should_reject_noncanonical_deployment_commit_sha(commit_sha: object) -> None:
+    # Given
+    deployment = _deployment()
+    trigger = deployment["deployment_trigger"]
+    assert isinstance(trigger, dict)
+    metadata = trigger["metadata"]
+    assert isinstance(metadata, dict)
+    metadata["commit_hash"] = commit_sha
+
+    # When / Then
+    with pytest.raises(CloudflarePolicyError, match="schema"):
+        parse_deployments_response(_deployments_payload(deployment))
+
+
+def test_should_reject_missing_deployment_commit_sha() -> None:
+    # Given
+    deployment = _deployment()
+    trigger = deployment["deployment_trigger"]
+    assert isinstance(trigger, dict)
+    metadata = trigger["metadata"]
+    assert isinstance(metadata, dict)
+    metadata.pop("commit_hash")
+
+    # When / Then
+    with pytest.raises(CloudflarePolicyError, match="schema"):
+        parse_deployments_response(_deployments_payload(deployment))
+
+
 def test_should_reject_wrong_page_size() -> None:
     # Given
     payload = json.loads(_deployments_payload(_deployment()))
@@ -268,6 +325,17 @@ def test_should_reject_credential_bearing_deployment_url() -> None:
         select_deployment(response, _target(), FULL_SHA, PROJECT_ID)
 
 
+def test_should_reject_deployment_url_with_path() -> None:
+    # Given
+    deployment = _deployment()
+    deployment["url"] = "https://f64788e9.edge-reco.pages.dev/foreign"
+    response = parse_deployments_response(_deployments_payload(deployment))
+
+    # When / Then
+    with pytest.raises(CloudflarePolicyError, match="deployment identity"):
+        select_deployment(response, _target(), FULL_SHA, PROJECT_ID)
+
+
 def test_should_reject_hostname_not_equal_to_documented_short_id() -> None:
     deployment = _deployment()
     deployment["url"] = "https://foreign.edge-reco.pages.dev"
@@ -286,6 +354,22 @@ def test_should_select_latest_when_same_sha_has_prior_deployments() -> None:
     assert selected.id == "f64788e9-fccd-4d4a-a28a-cb84f88f6"
 
 
+def test_should_reject_duplicate_exact_created_deployment_id() -> None:
+    # Given
+    deployment = _deployment()
+    response = parse_deployments_response(_deployments_payload(deployment, deployment))
+
+    # When / Then
+    with pytest.raises(CloudflarePolicyError, match="deployment identity"):
+        select_deployment(
+            response,
+            _target(),
+            FULL_SHA,
+            PROJECT_ID,
+            "f64788e9-fccd-4d4a-a28a-cb84f88f6",
+        )
+
+
 @pytest.mark.parametrize("status", ("failure", "canceled"))
 def test_should_reject_failed_deployment_stage(status: str) -> None:
     # Given
diff --git a/modules/cloudflare-pages/.dagger/tests/test_deploy_contract.py b/modules/cloudflare-pages/.dagger/tests/test_deploy_contract.py
index f9dcde2..9341034 100644
--- a/modules/cloudflare-pages/.dagger/tests/test_deploy_contract.py
+++ b/modules/cloudflare-pages/.dagger/tests/test_deploy_contract.py
@@ -334,6 +334,18 @@ def _deployment(
     }
 
 
+def _with_commit_sha(deployment: dict[str, object], sha: str) -> dict[str, object]:
+    trigger = cast(dict[str, object], deployment["deployment_trigger"])
+    metadata = cast(dict[str, object], trigger["metadata"])
+    metadata["commit_hash"] = sha
+    return deployment
+
+
+def _with_stage(deployment: dict[str, object], name: str, status: str) -> dict[str, object]:
+    deployment["latest_stage"] = {"name": name, "status": status}
+    return deployment
+
+
 def _provider_evidence() -> ProviderDeploymentEvidence:
     return ProviderDeploymentEvidence(
         "f64788e9-fccd-4d4a-a28a-cb84f88f6",
@@ -770,6 +782,40 @@ async def test_should_ignore_old_same_sha_and_wait_for_created_id() -> None:
     assert operations.sleeps == [1]
 
 
+@pytest.mark.asyncio
+async def test_should_upload_when_historical_rows_have_empty_commit_sha() -> None:
+    # Given
+    legacy = _with_commit_sha(_deployment("success", "11111111-fccd-4d4a-a28a-cb84f88f6"), "")
+    current = _deployment("success")
+    operations = FakeOperations(
+        [_deployments_payload(legacy), _deployments_payload(legacy, current)]
+    )
+
+    # When
+    evidence = await deploy_verified_artifact(
+        operations, object(), _target(), _github_evidence(), AttemptIdentity("44", 2)
+    )
+
+    # Then
+    assert evidence.deployment_id == "f64788e9-fccd-4d4a-a28a-cb84f88f6"
+    assert f"upload:{FULL_SHA}" in operations.events
+
+
+@pytest.mark.asyncio
+async def test_should_timeout_when_created_deployment_has_empty_commit_sha() -> None:
+    # Given
+    empty_created = _with_commit_sha(_deployment("success"), "")
+    responses = [_deployments_payload()] + [_deployments_payload(empty_created)] * 5
+    operations = FakeOperations(responses)
+
+    # When / Then
+    with pytest.raises(CloudflarePolicyError, match="did not converge"):
+        await deploy_verified_artifact(
+            operations, object(), _target(), _github_evidence(), AttemptIdentity("44", 2)
+        )
+    assert operations.sleeps == [1, 2, 4, 8]
+
+
 @pytest.mark.asyncio
 async def test_should_report_created_failure_despite_old_same_sha_success() -> None:
     old = _deployment("success", "11111111-fccd-4d4a-a28a-cb84f88f6")
@@ -803,6 +849,27 @@ async def test_should_converge_with_bounded_exponential_delays() -> None:
     assert operations.sleeps == [1, 2]
 
 
+@pytest.mark.asyncio
+async def test_should_poll_through_documented_predeploy_stages() -> None:
+    # Given
+    operations = FakeOperations(
+        [
+            _deployment_payload("absent"),
+            _deployments_payload(_with_stage(_deployment("active"), "queued", "idle")),
+            _deployments_payload(_with_stage(_deployment("active"), "build", "active")),
+            _deployment_payload(),
+        ]
+    )
+
+    # When
+    await deploy_verified_artifact(
+        operations, object(), _target(), _github_evidence(), AttemptIdentity("44", 2)
+    )
+
+    # Then
+    assert operations.sleeps == [1, 2]
+
+
 @pytest.mark.asyncio
 async def test_should_accept_success_after_final_bounded_delay() -> None:
     # Given