diff --git a/packages/omo-codex/plugin/components/start-work-continuation/test/fixtures/boulder-completed.json b/packages/omo-codex/plugin/components/start-work-continuation/test/fixtures/boulder-completed.json
new file mode 100644
index 000000000..02f127018
--- /dev/null
+++ b/packages/omo-codex/plugin/components/start-work-continuation/test/fixtures/boulder-completed.json
@@ -0,0 +1,19 @@
+{
+	"schema_version": 2,
+	"active_work_id": "work_1",
+	"works": {
+		"work_1": {
+			"work_id": "work_1",
+			"active_plan": "/repo/.omo/plans/plan-with-unchecked.md",
+			"plan_name": "completed-plan",
+			"status": "completed",
+			"started_at": "2026-05-28T00:00:00Z",
+			"session_ids": ["codex:sess_abc"]
+		}
+	},
+	"active_plan": "/repo/.omo/plans/plan-with-unchecked.md",
+	"plan_name": "completed-plan",
+	"started_at": "2026-05-28T00:00:00Z",
+	"status": "completed",
+	"session_ids": ["codex:sess_abc"]
+}
diff --git a/packages/omo-codex/plugin/components/start-work-continuation/test/fixtures/boulder-mixed-platforms.json b/packages/omo-codex/plugin/components/start-work-continuation/test/fixtures/boulder-mixed-platforms.json
new file mode 100644
index 000000000..095bf7b9c
--- /dev/null
+++ b/packages/omo-codex/plugin/components/start-work-continuation/test/fixtures/boulder-mixed-platforms.json
@@ -0,0 +1,27 @@
+{
+	"schema_version": 2,
+	"active_work_id": "codex_work",
+	"works": {
+		"opencode_work": {
+			"work_id": "opencode_work",
+			"active_plan": "/repo/.omo/plans/opencode-plan.md",
+			"plan_name": "opencode-plan",
+			"status": "active",
+			"started_at": "2026-05-28T00:00:00Z",
+			"session_ids": ["opencode:sess_abc"]
+		},
+		"codex_work": {
+			"work_id": "codex_work",
+			"active_plan": "/repo/.omo/plans/plan-with-unchecked.md",
+			"plan_name": "codex-plan",
+			"status": "paused",
+			"started_at": "2026-05-28T00:00:00Z",
+			"session_ids": ["codex:def"]
+		}
+	},
+	"active_plan": "/repo/.omo/plans/opencode-plan.md",
+	"plan_name": "legacy-opencode-plan",
+	"started_at": "2026-05-28T00:00:00Z",
+	"status": "active",
+	"session_ids": ["opencode:sess_abc"]
+}
diff --git a/packages/omo-codex/plugin/components/start-work-continuation/test/fixtures/boulder-single-codex-work.json b/packages/omo-codex/plugin/components/start-work-continuation/test/fixtures/boulder-single-codex-work.json
new file mode 100644
index 000000000..9c123ea40
--- /dev/null
+++ b/packages/omo-codex/plugin/components/start-work-continuation/test/fixtures/boulder-single-codex-work.json
@@ -0,0 +1,19 @@
+{
+	"schema_version": 2,
+	"active_work_id": "work_1",
+	"works": {
+		"work_1": {
+			"work_id": "work_1",
+			"active_plan": "/repo/.omo/plans/plan-with-unchecked.md",
+			"plan_name": "launch-plan",
+			"status": "active",
+			"started_at": "2026-05-28T00:00:00Z",
+			"session_ids": ["codex:sess_abc"]
+		}
+	},
+	"active_plan": "/repo/.omo/plans/plan-with-unchecked.md",
+	"plan_name": "legacy-launch-plan",
+	"started_at": "2026-05-28T00:00:00Z",
+	"status": "active",
+	"session_ids": ["codex:sess_legacy"]
+}
diff --git a/packages/omo-codex/plugin/components/start-work-continuation/test/fixtures/plan-all-done.md b/packages/omo-codex/plugin/components/start-work-continuation/test/fixtures/plan-all-done.md
new file mode 100644
index 000000000..453ae07b4
--- /dev/null
+++ b/packages/omo-codex/plugin/components/start-work-continuation/test/fixtures/plan-all-done.md
@@ -0,0 +1,5 @@
+# Launch Plan
+
+## TODOs
+- [x] First
+- [x] Second
diff --git a/packages/omo-codex/plugin/components/start-work-continuation/test/fixtures/plan-with-nested-checkboxes.md b/packages/omo-codex/plugin/components/start-work-continuation/test/fixtures/plan-with-nested-checkboxes.md
new file mode 100644
index 000000000..59cc4fe65
--- /dev/null
+++ b/packages/omo-codex/plugin/components/start-work-continuation/test/fixtures/plan-with-nested-checkboxes.md
@@ -0,0 +1,11 @@
+# Launch Plan
+
+## TODOs
+- [ ] Top-level
+
+### Acceptance Criteria
+  - [ ] Nested under acceptance criteria
+  - [x] Nested done
+
+## Final Checklist
+  - [ ] Nested under final checklist
diff --git a/packages/omo-codex/plugin/components/start-work-continuation/test/fixtures/plan-with-unchecked.md b/packages/omo-codex/plugin/components/start-work-continuation/test/fixtures/plan-with-unchecked.md
new file mode 100644
index 000000000..12a1d7ce4
--- /dev/null
+++ b/packages/omo-codex/plugin/components/start-work-continuation/test/fixtures/plan-with-unchecked.md
@@ -0,0 +1,6 @@
+# Launch Plan
+
+## TODOs
+- [ ] First
+- [x] Done already
+- [ ] Second