diff --git a/history/2026-10-08-oidc-rp-follow-through-review.md b/history/2026-10-08-oidc-rp-follow-through-review.md
index c2e03bd..75974d7 100644
--- a/history/2026-10-08-oidc-rp-follow-through-review.md
+++ b/history/2026-10-08-oidc-rp-follow-through-review.md
@@ -106,3 +106,14 @@ Correction to R4: the existing `rapp-qonto-keycape-client` is a
 client-credentials workload client at a different path. It is not a browser
 relying party, so it would **not** become a case of this type. Only the naming
 precedent carries over.
+
+## Re-check 2026-10-09: revised 1.0 against R1–R7
+
+`warden case check-type` run on the revised type: `schema_ok=True`. R1 (`lane`),
+R2 (canon definition of `warden_executes`), R3 (`value_handling`), R4′
+(templated `catalog-entry` body), R5 (`ready_check` on `deliver-secret`), R6
+(exact memberships in `ensure-groups`) and R7 (`secret-delivered`,
+`mfa-pinned`) are all present. Before T02 can plan a run, two lanes must
+become reviewed catalog entries: `identity-provisioner-groups` (owner
+net-kingdom) and `keycape-client-secret-generate` (owner railiance-platform).
+ops-warden has no further required changes to the type.
diff --git a/src/warden/case_type.py b/src/warden/case_type.py
new file mode 100644
index 0000000..46aae8e
--- /dev/null
+++ b/src/warden/case_type.py
@@ -0,0 +1,170 @@
+"""SecurityCaseType follow-through check (WARDEN-WP-0044-T01).
+
+Checks the ``follow_through`` section of a NetKingdom SecurityCaseType against
+the rules ops-warden needs before it can plan a run (canon
+``security-case-types_v0.1`` section on follow_through; ops-warden review
+``history/2026-10-08-oidc-rp-follow-through-review.md``, R1-R3, R5-R7).
+
+Two kinds of finding:
+
+* ``schema``  — the type itself is wrong; net-kingdom fixes the type.
+* ``catalog`` — the type is right but a lane it names is not yet a reviewed,
+  active catalog entry; the lane's owner supplies it. ``warden case plan``
+  (T02) refuses to plan while any catalog finding remains.
+
+Read-only: it parses YAML and the catalog, executes nothing, and never handles a
+secret value.
+"""
+from __future__ import annotations
+
+from dataclasses import dataclass
+from pathlib import Path
+from typing import Iterable, List, Optional
+
+import yaml
+
+from warden.routing.catalog import Catalog
+
+VALUE_HANDLING = ("none", "generated_in_custody")
+REQUIRED_STEP_FIELDS = ("id", "owner", "entry_point", "auth", "warden_executes", "attended", "value_handling")
+
+
+@dataclass(frozen=True)
+class Finding:
+    kind: str  # "schema" | "catalog"
+    code: str
+    where: str
+    message: str
+
+    def as_dict(self) -> dict:
+        return {"kind": self.kind, "code": self.code, "where": self.where, "message": self.message}
+
+
+@dataclass(frozen=True)
+class FollowThroughReport:
+    type_id: str
+    version: str
+    findings: List[Finding]
+    attended_lanes: List[str]  # one attended session per lane, in step order
+    warden_steps: List[str]
+
+    @property
+    def schema_ok(self) -> bool:
+        return not any(f.kind == "schema" for f in self.findings)
+
+    @property
+    def plannable(self) -> bool:
+        return not self.findings
+
+    def as_dict(self) -> dict:
+        return {
+            "type": self.type_id,
+            "version": self.version,
+            "schema_ok": self.schema_ok,
+            "plannable": self.plannable,
+            "warden_steps": self.warden_steps,
+            "attended_sessions": self.attended_lanes,
+            "findings": [f.as_dict() for f in self.findings],
+        }
+
+
+def load_type(path: Path) -> dict:
+    with open(path) as fh:
+        doc = yaml.safe_load(fh)
+    if not isinstance(doc, dict) or doc.get("kind") != "SecurityCaseType":
+        raise ValueError(f"{path}: not a SecurityCaseType document")
+    return doc
+
+
+def _bool(step: dict, key: str) -> Optional[bool]:
+    value = step.get(key)
+    return value if isinstance(value, bool) else None
+
+
+def check_follow_through(doc: dict, catalog: Optional[Catalog] = None) -> FollowThroughReport:
+    spec = doc.get("spec") or {}
+    steps = spec.get("follow_through") or []
+    findings: List[Finding] = []
+    attended_lanes: List[str] = []
+    warden_steps: List[str] = []
+
+    def schema(code: str, where: str, message: str) -> None:
+        findings.append(Finding("schema", code, where, message))
+
+    if not steps:
+        schema("FT-EMPTY", "follow_through", "type declares no follow-through steps")
+
+    seen: set = set()
+    for index, step in enumerate(steps):
+        sid = step.get("id") if isinstance(step, dict) else None
+        where = f"follow_through[{sid or index}]"
+        if not isinstance(step, dict):
+            schema("FT-SHAPE", where, "step is not a mapping")
+            continue
+        for key in REQUIRED_STEP_FIELDS:
+            if key not in step or step[key] in (None, ""):
+                schema("FT-FIELD", where, f"missing required field '{key}'")
+        if sid in seen:
+            schema("FT-DUP", where, "duplicate step id")
+        seen.add(sid)
+
+        executes = _bool(step, "warden_executes")
+        attended = _bool(step, "attended")
+        for key, value in (("warden_executes", executes), ("attended", attended)):
+            if key in step and value is None:
+                schema("FT-BOOL", where, f"'{key}' must be a boolean")
+
+        # R3: values never pass through the run.
+        handling = step.get("value_handling")
+        if handling is not None and handling not in VALUE_HANDLING:
+            schema("FT-VALUE", where, f"value_handling '{handling}' not in {list(VALUE_HANDLING)}")
+        if handling == "generated_in_custody" and attended:
+            schema("FT-VALUE", where, "a generated-in-custody step may not run in an attended session")
+
+        # Attended steps: justified, and never executed by warden itself.
+        if attended:
+            if not step.get("attended_justification"):
+                schema("FT-ATTEND", where, "attended step carries no attended_justification")
+            if executes:
+                schema("FT-ATTEND", where, "a step is either warden_executes or attended, not both")
+
+        # R1: a lane for every step warden executes or groups into a session.
+        lane = step.get("lane")
+        if (executes or attended) and not lane:
+            schema("FT-LANE", where, "warden_executes or attended step names no catalog lane")
+        if lane and catalog is not None:
+            entry = catalog.get(lane)
+            if entry is None:
+                findings.append(Finding("catalog", "LANE-MISSING", where, f"lane '{lane}' is not in the catalog"))
+            elif not entry.is_active or not entry.reviewed:
+                findings.append(Finding("catalog", "LANE-UNREVIEWED", where, f"lane '{lane}' is not active and reviewed"))
+            elif attended and entry.lane != "login":
+                findings.append(Finding("catalog", "LANE-KIND", where, f"attended step's lane '{lane}' is not a login lane"))
+
+        if executes:
+            warden_steps.append(sid)
+        if attended and lane and lane not in attended_lanes:
+            attended_lanes.append(lane)
+
+    # R7: verification never reads a value.
+    for index, item in enumerate(spec.get("verification") or []):
+        if not isinstance(item, dict) or item.get("reads_secret_value") is not False:
+            vid = item.get("id", index) if isinstance(item, dict) else index
+            schema("VER-VALUE", f"verification[{vid}]", "reads_secret_value must be explicitly false")
+
+    # Every step must be reversible (or explicitly the consumer's to undo).
+    reversed_ids = {r.get("reverses") for r in spec.get("rollback") or [] if isinstance(r, dict)}
+    for sid in sorted(s for s in seen if s and s not in reversed_ids):
+        schema("RB-MISSING", f"follow_through[{sid}]", "no rollback entry reverses this step")
+
+    return FollowThroughReport(
+        type_id=str(spec.get("id", "")),
+        version=str(spec.get("version", "")),
+        findings=findings,
+        attended_lanes=attended_lanes,
+        warden_steps=warden_steps,
+    )
+
+
+def summarize(findings: Iterable[Finding]) -> str:
+    return "\n".join(f"[{f.kind}] {f.code} {f.where}: {f.message}" for f in findings)
diff --git a/src/warden/cli.py b/src/warden/cli.py
index 6c2d0be..80fd467 100644
--- a/src/warden/cli.py
+++ b/src/warden/cli.py
@@ -7,6 +7,7 @@ from pathlib import Path
 from typing import Annotated, List, Optional
 
 import typer
+import yaml
 from rich.console import Console
 from rich.table import Table
 
@@ -50,6 +51,11 @@ memory_app = typer.Typer(
     no_args_is_help=True,
 )
 app.add_typer(memory_app, name="memory")
+case_app = typer.Typer(
+    help="SecurityCaseType follow-through (WARDEN-WP-0044; read-only check, no execution)",
+    no_args_is_help=True,
+)
+app.add_typer(case_app, name="case")
 
 console = Console()
 err = Console(stderr=True)
@@ -2212,3 +2218,28 @@ def memory_activate(
         print(json.dumps(payload, indent=2))
         return
     console.print(warden_memory.format_activation_summary(payload))
+
+
+@case_app.command("check-type")
+def case_check_type(
+    type_file: Annotated[Path, typer.Argument(help="SecurityCaseType type.yaml")],
+    output_json: Annotated[bool, typer.Option("--json", help="Output JSON")] = False,
+) -> None:
+    """Check a type's follow_through against ops-warden's planning rules (exit 1 if not plannable)."""
+    from warden.case_type import check_follow_through, load_type, summarize
+
+    try:
+        doc = load_type(type_file)
+    except (OSError, ValueError, yaml.YAMLError) as exc:
+        err.print(f"[red]{exc}[/red]")
+        raise typer.Exit(2)
+    report = check_follow_through(doc, _load_catalog())
+    if output_json:
+        print(json.dumps(report.as_dict(), indent=2))
+    else:
+        console.print(f"{report.type_id} {report.version}: schema_ok={report.schema_ok} plannable={report.plannable}")
+        console.print(f"warden executes: {', '.join(report.warden_steps) or '-'}")
+        console.print(f"attended sessions: {', '.join(report.attended_lanes) or '-'}")
+        if report.findings:
+            console.print(summarize(report.findings), markup=False)
+    raise typer.Exit(0 if report.plannable else 1)
diff --git a/tests/test_case_type.py b/tests/test_case_type.py
new file mode 100644
index 0000000..bec2ed6
--- /dev/null
+++ b/tests/test_case_type.py
@@ -0,0 +1,127 @@
+"""WARDEN-WP-0044-T01: SecurityCaseType follow-through check."""
+from __future__ import annotations
+
+import copy
+from pathlib import Path
+
+import pytest
+import yaml
+from typer.testing import CliRunner
+
+from warden.case_type import check_follow_through, load_type
+from warden.cli import app
+from warden.routing.catalog import load_catalog
+
+LIVE_TYPE = Path.home() / "net-kingdom/security-case-types/oidc-browser-relying-party/type.yaml"
+
+BASE = {
+    "apiVersion": "netkingdom.io/security-case-type/v0.1",
+    "kind": "SecurityCaseType",
+    "spec": {
+        "id": "t",
+        "version": "1.0",
+        "follow_through": [
+            {"id": "run", "owner": "o", "entry_point": "e", "auth": "a", "lane": "key-cape-oidc-login",
+             "warden_executes": True, "attended": False, "value_handling": "none"},
+            {"id": "login", "owner": "o", "entry_point": "e", "auth": "a", "lane": "key-cape-oidc-login",
+             "warden_executes": False, "attended": True, "value_handling": "none",
+             "attended_justification": "live registry is a Secret"},
+            {"id": "handover", "owner": "o", "entry_point": "e", "auth": "a",
+             "warden_executes": False, "attended": False, "value_handling": "none"},
+        ],
+        "verification": [{"id": "v", "check": "c", "expect": "present", "reads_secret_value": False}],
+        "rollback": [{"reverses": "run"}, {"reverses": "login"}, {"reverses": "handover"}],
+    },
+}
+
+
+@pytest.fixture(scope="module")
+def catalog():
+    return load_catalog()
+
+
+def _doc(**step_overrides):
+    doc = copy.deepcopy(BASE)
+    doc["spec"]["follow_through"][0].update(step_overrides)
+    return doc
+
+
+def _codes(report):
+    return {f.code for f in report.findings}
+
+
+def test_conforming_type_is_plannable(catalog):
+    report = check_follow_through(_doc(), catalog)
+    assert report.plannable, report.findings
+    assert report.warden_steps == ["run"]
+    assert report.attended_lanes == ["key-cape-oidc-login"]
+
+
+def test_executed_step_without_lane_refused(catalog):
+    doc = _doc()
+    del doc["spec"]["follow_through"][0]["lane"]
+    assert "FT-LANE" in _codes(check_follow_through(doc, catalog))
+
+
+def test_unknown_lane_is_catalog_finding_not_schema(catalog):
+    report = check_follow_through(_doc(lane="no-such-lane"), catalog)
+    assert report.schema_ok and not report.plannable
+    assert _codes(report) == {"LANE-MISSING"}
+
+
+def test_value_handling_required_and_enumerated(catalog):
+    assert "FT-VALUE" in _codes(check_follow_through(_doc(value_handling="returned"), catalog))
+    doc = _doc()
+    del doc["spec"]["follow_through"][0]["value_handling"]
+    assert "FT-FIELD" in _codes(check_follow_through(doc, catalog))
+
+
+def test_attended_needs_justification_and_excludes_execution(catalog):
+    doc = copy.deepcopy(BASE)
+    del doc["spec"]["follow_through"][1]["attended_justification"]
+    doc["spec"]["follow_through"][1]["warden_executes"] = True
+    msgs = [f.message for f in check_follow_through(doc, catalog).findings if f.code == "FT-ATTEND"]
+    assert len(msgs) == 2
+
+
+def test_attended_step_needs_login_lane(catalog):
+    doc = copy.deepcopy(BASE)
+    secret_lane = next(e.id for e in catalog.entries if e.is_active and e.reviewed and e.lane == "secret")
+    doc["spec"]["follow_through"][1]["lane"] = secret_lane
+    assert "LANE-KIND" in _codes(check_follow_through(doc, catalog))
+
+
+def test_generated_value_never_in_attended_session(catalog):
+    doc = copy.deepcopy(BASE)
+    doc["spec"]["follow_through"][1]["value_handling"] = "generated_in_custody"
+    assert "FT-VALUE" in _codes(check_follow_through(doc, catalog))
+
+
+def test_verification_must_not_read_values(catalog):
+    doc = _doc()
+    doc["spec"]["verification"][0]["reads_secret_value"] = True
+    assert "VER-VALUE" in _codes(check_follow_through(doc, catalog))
+
+
+def test_every_step_reversible(catalog):
+    doc = _doc()
+    doc["spec"]["rollback"] = doc["spec"]["rollback"][1:]
+    assert "RB-MISSING" in _codes(check_follow_through(doc, catalog))
+
+
+def test_cli_exit_codes(tmp_path):
+    good, bad = tmp_path / "good.yaml", tmp_path / "bad.yaml"
+    good.write_text(yaml.safe_dump(_doc()))
+    bad.write_text(yaml.safe_dump(_doc(lane="no-such-lane")))
+    runner = CliRunner()
+    assert runner.invoke(app, ["case", "check-type", str(good), "--json"]).exit_code == 0
+    assert runner.invoke(app, ["case", "check-type", str(bad), "--json"]).exit_code == 1
+
+
+@pytest.mark.skipif(not LIVE_TYPE.exists(), reason="net-kingdom checkout not present")
+def test_live_oidc_rp_type_schema_conforms(catalog):
+    """The revised 1.0 type meets R1-R3/R5-R7; only the two owner lanes are outstanding."""
+    report = check_follow_through(load_type(LIVE_TYPE), catalog)
+    assert report.schema_ok, report.findings
+    assert report.attended_lanes == ["key-cape-oidc-login"]
+    assert {f.code for f in report.findings} <= {"LANE-MISSING", "LANE-UNREVIEWED"}
diff --git a/workplans/WARDEN-WP-0044-security-case-follow-through.md b/workplans/WARDEN-WP-0044-security-case-follow-through.md
index e3c55d2..113ec69 100644
--- a/workplans/WARDEN-WP-0044-security-case-follow-through.md
+++ b/workplans/WARDEN-WP-0044-security-case-follow-through.md
@@ -9,7 +9,7 @@ flavor: implementation
 owner: claude-code
 topic_slug: netkingdom
 created: "2026-10-08"
-updated: "2026-10-08"
+updated: "2026-10-09"
 depends_on: []
 related_repos:
   - net-kingdom
@@ -66,6 +66,15 @@ net-kingdom acknowledges the review (NK-WP-0048-T05).
 `{consuming_service}-keycape-client`, with the entry body templated in the type
 (R4′, see the addendum in the review).
 
+2026-10-09: the revised 1.0 type and canon now carry R1–R3, R4′, R5–R7.
+`warden case check-type <type.yaml>` (`src/warden/case_type.py`, tests in
+`tests/test_case_type.py`) checks a type's follow-through mechanically: the
+live type is schema-conformant, with one attended session
+(`key-cape-oidc-login`). It is not yet plannable, because two lanes are not
+in the catalog: `identity-provisioner-groups` (net-kingdom) and
+`keycape-client-secret-generate` (railiance-platform). These gate T02, not
+T01. T01 still closes on net-kingdom's acknowledgement (NK-WP-0048-T05).
+
 ```task
 id: WARDEN-WP-0044-T02
 status: wait