diff --git a/.github/workflows/opc-lab.yml b/.github/workflows/opc-lab.yml
new file mode 100644
index 0000000..a481a31
--- /dev/null
+++ b/.github/workflows/opc-lab.yml
@@ -0,0 +1,35 @@
+name: OPC Lab
+
+on:
+  pull_request:
+    paths:
+      - 'labs/opc-company/**'
+      - 'scripts/verify.sh'
+      - 'README.md'
+      - 'README.en.md'
+      - '.github/workflows/opc-lab.yml'
+  workflow_dispatch:
+
+jobs:
+  verify:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Verify QuietHarness repository
+        run: ./scripts/verify.sh
+      - name: Verify OPC fixtures
+        run: python3 labs/opc-company/tests/run.py
+      - name: Parse OPC JSON
+        run: |
+          find labs/opc-company -name '*.json' -print0 | while IFS= read -r -d '' file; do
+            python3 -m json.tool "$file" >/dev/null
+          done
+      - name: Reject private or production identifiers
+        run: |
+          hits="$(grep -REn '(/(Users|home)/[^/]+|leo[-]vault|_[i]nventory|active[-]tasks|T[0-9]{3,}|thread[_ -]?id|session[_ -]?id|0x[a-fA-F0-9]{40})' labs/opc-company 2>/dev/null || true)"
+          if [ -n "$hits" ]; then
+            echo 'OPC_VERIFY_FAIL private or production pattern detected' >&2
+            echo "$hits" >&2
+            exit 1
+          fi
+          echo OPC_PRIVATE_SCAN_OK
diff --git a/labs/opc-company/README.en.md b/labs/opc-company/README.en.md
new file mode 100644
index 0000000..231e362
--- /dev/null
+++ b/labs/opc-company/README.en.md
@@ -0,0 +1,30 @@
+# OPC Company Layer (experimental)
+
+This is QuietHarness's company-scale governance lab, not another multi-agent framework.
+
+QuietHarness focuses on reliable execution by one or a few agents. The OPC Company Layer focuses on durable ownership, canonical state, handoffs, acceptance, semantic ACKs, and worker failover across multiple long-lived agents.
+
+## 10-minute first success
+
+```bash
+cd labs/opc-company
+python3 scripts/opc.py status examples/synthetic-company
+
+python3 scripts/opc.py verify \
+  --task fixtures/false-completion/task.json \
+  --receipt fixtures/false-completion/receipt.json
+# expected: rejected
+
+python3 scripts/opc.py verify \
+  --task examples/synthetic-company/tasks/product-release.json \
+  --receipt examples/synthetic-company/receipts/product-release.valid.json
+# expected: PASS
+
+python3 scripts/opc.py failover \
+  --before fixtures/quota-failover/task.before.json \
+  --after fixtures/quota-failover/task.after.json
+# expected: same task, same owner, new worker, PASS
+```
+
+Public: protocols, schemas, synthetic fixtures, verifier.
+Private: live business tasks, production topology, account bindings, schedulers, exact quota routing, trading alpha, credentials.
diff --git a/labs/opc-company/README.md b/labs/opc-company/README.md
new file mode 100644
index 0000000..89e406d
--- /dev/null
+++ b/labs/opc-company/README.md
@@ -0,0 +1,37 @@
+# OPC Company Layer（实验性）
+
+这是 QuietHarness 的公司级治理实验层，不是另一个“多 Agent 框架”。
+
+QuietHarness 解决单个或少量 Agent 的可靠执行；OPC Company Layer 解决多个长期 Owner / Worker 如何共享事实、交接、验收，并在换模型或额度耗尽后继续同一任务。
+
+## 10 分钟 First Success
+
+```bash
+cd labs/opc-company
+
+python3 scripts/opc.py status examples/synthetic-company
+
+# 1) Agent 自述完成，但没有 artifact / validation / owner writeback
+python3 scripts/opc.py verify \
+  --task fixtures/false-completion/task.json \
+  --receipt fixtures/false-completion/receipt.json
+# 预期：拒绝
+
+# 2) 真实 receipt
+python3 scripts/opc.py verify \
+  --task examples/synthetic-company/tasks/product-release.json \
+  --receipt examples/synthetic-company/receipts/product-release.valid.json
+# 预期：PASS
+
+# 3) Worker 额度耗尽，但任务不迁移
+python3 scripts/opc.py failover \
+  --before fixtures/quota-failover/task.before.json \
+  --after fixtures/quota-failover/task.after.json
+# 预期：同 task / 同 owner / 新 worker，PASS
+```
+
+## 公开边界
+
+公开的是协议、schema、synthetic fixture 和 verifier。
+
+不公开真实业务任务、生产 Owner 拓扑、账号绑定、scheduler、MCPX production 配置、额度路由、交易策略和其他 operational alpha。
diff --git a/labs/opc-company/examples/synthetic-company/organization.json b/labs/opc-company/examples/synthetic-company/organization.json
new file mode 100644
index 0000000..d74fb8f
--- /dev/null
+++ b/labs/opc-company/examples/synthetic-company/organization.json
@@ -0,0 +1 @@
+{"schema_version":1,"organization_id":"synthetic-opc","roles":["ops","research","content","product"]}
\ No newline at end of file
diff --git a/labs/opc-company/examples/synthetic-company/receipts/product-release.valid.json b/labs/opc-company/examples/synthetic-company/receipts/product-release.valid.json
new file mode 100644
index 0000000..9ea67ef
--- /dev/null
+++ b/labs/opc-company/examples/synthetic-company/receipts/product-release.valid.json
@@ -0,0 +1 @@
+{"schema_version":1,"receipt_id":"receipt-product-release-1","task_id":"product-release","worker":"worker-b","outcome":"completed","artifacts":["artifacts/product-change.diff"],"validation":["tests: PASS"],"owner_writeback":true,"downstream_ack":null,"created_at":"2026-01-01T10:00:00Z"}
\ No newline at end of file
diff --git a/labs/opc-company/examples/synthetic-company/roles.json b/labs/opc-company/examples/synthetic-company/roles.json
new file mode 100644
index 0000000..cd8788c
--- /dev/null
+++ b/labs/opc-company/examples/synthetic-company/roles.json
@@ -0,0 +1 @@
+[{"schema_version":1,"role_id":"ops","name":"Ops Owner","owner":"ops-owner","responsibilities":["governance","acceptance","recovery"]},{"schema_version":1,"role_id":"research","name":"Research Owner","owner":"research-owner","responsibilities":["research","source verification"]},{"schema_version":1,"role_id":"content","name":"Content Owner","owner":"content-owner","responsibilities":["drafting","release readiness"]},{"schema_version":1,"role_id":"product","name":"Product Owner","owner":"product-owner","responsibilities":["implementation","tests"]}]
\ No newline at end of file
diff --git a/labs/opc-company/examples/synthetic-company/tasks/product-release.json b/labs/opc-company/examples/synthetic-company/tasks/product-release.json
new file mode 100644
index 0000000..7f5efcf
--- /dev/null
+++ b/labs/opc-company/examples/synthetic-company/tasks/product-release.json
@@ -0,0 +1 @@
+{"schema_version":1,"id":"product-release","title":"Implement and verify a small product change","status":"active","owner":"product","primary_worker":"worker-a","claimed_by":"worker-a","claimed_at":"2026-01-01T09:00:00Z","next_action":"Implement the change and produce validation evidence.","updated_at":"2026-01-01T09:00:00Z","artifacts":[],"decision_gate":null,"hard_gates_pending":[],"downstream_requires_ack":false}
\ No newline at end of file
diff --git a/labs/opc-company/examples/synthetic-company/tasks/research-to-content.json b/labs/opc-company/examples/synthetic-company/tasks/research-to-content.json
new file mode 100644
index 0000000..2df9357
--- /dev/null
+++ b/labs/opc-company/examples/synthetic-company/tasks/research-to-content.json
@@ -0,0 +1 @@
+{"schema_version":1,"id":"research-to-content","title":"Turn verified research into a content draft","status":"active","owner":"research","primary_worker":"worker-a","claimed_by":"worker-a","claimed_at":"2026-01-01T09:00:00Z","next_action":"Produce verified research artifact and hand it to Content Owner.","updated_at":"2026-01-01T09:00:00Z","artifacts":[],"decision_gate":null,"hard_gates_pending":[],"downstream_requires_ack":true}
\ No newline at end of file
diff --git a/labs/opc-company/fixtures/false-completion/receipt.json b/labs/opc-company/fixtures/false-completion/receipt.json
new file mode 100644
index 0000000..aae5e1a
--- /dev/null
+++ b/labs/opc-company/fixtures/false-completion/receipt.json
@@ -0,0 +1 @@
+{"schema_version":1,"receipt_id":"receipt-false-done","task_id":"product-release","worker":"worker-a","outcome":"completed","artifacts":[],"validation":[],"owner_writeback":false,"downstream_ack":null,"created_at":"2026-01-01T09:30:00Z"}
\ No newline at end of file
diff --git a/labs/opc-company/fixtures/false-completion/task.json b/labs/opc-company/fixtures/false-completion/task.json
new file mode 100644
index 0000000..7f5efcf
--- /dev/null
+++ b/labs/opc-company/fixtures/false-completion/task.json
@@ -0,0 +1 @@
+{"schema_version":1,"id":"product-release","title":"Implement and verify a small product change","status":"active","owner":"product","primary_worker":"worker-a","claimed_by":"worker-a","claimed_at":"2026-01-01T09:00:00Z","next_action":"Implement the change and produce validation evidence.","updated_at":"2026-01-01T09:00:00Z","artifacts":[],"decision_gate":null,"hard_gates_pending":[],"downstream_requires_ack":false}
\ No newline at end of file
diff --git a/labs/opc-company/fixtures/missing-ack/receipt.json b/labs/opc-company/fixtures/missing-ack/receipt.json
new file mode 100644
index 0000000..b5a6456
--- /dev/null
+++ b/labs/opc-company/fixtures/missing-ack/receipt.json
@@ -0,0 +1 @@
+{"schema_version":1,"receipt_id":"receipt-research-1","task_id":"research-to-content","worker":"worker-a","outcome":"completed","artifacts":["artifacts/research.md"],"validation":["sources: verified"],"owner_writeback":true,"downstream_ack":null,"created_at":"2026-01-01T09:30:00Z"}
\ No newline at end of file
diff --git a/labs/opc-company/fixtures/missing-ack/task.json b/labs/opc-company/fixtures/missing-ack/task.json
new file mode 100644
index 0000000..2df9357
--- /dev/null
+++ b/labs/opc-company/fixtures/missing-ack/task.json
@@ -0,0 +1 @@
+{"schema_version":1,"id":"research-to-content","title":"Turn verified research into a content draft","status":"active","owner":"research","primary_worker":"worker-a","claimed_by":"worker-a","claimed_at":"2026-01-01T09:00:00Z","next_action":"Produce verified research artifact and hand it to Content Owner.","updated_at":"2026-01-01T09:00:00Z","artifacts":[],"decision_gate":null,"hard_gates_pending":[],"downstream_requires_ack":true}
\ No newline at end of file
diff --git a/labs/opc-company/fixtures/quota-failover/failover.json b/labs/opc-company/fixtures/quota-failover/failover.json
new file mode 100644
index 0000000..969884e
--- /dev/null
+++ b/labs/opc-company/fixtures/quota-failover/failover.json
@@ -0,0 +1 @@
+{"reason":"worker_quota_exhausted","from_worker":"worker-a","to_worker":"worker-b","same_task_id":true,"new_task_created":false,"canonical_state_preserved":true}
\ No newline at end of file
diff --git a/labs/opc-company/fixtures/quota-failover/task.after.json b/labs/opc-company/fixtures/quota-failover/task.after.json
new file mode 100644
index 0000000..5929ceb
--- /dev/null
+++ b/labs/opc-company/fixtures/quota-failover/task.after.json
@@ -0,0 +1 @@
+{"schema_version":1,"id":"product-release","title":"Implement and verify a small product change","status":"active","owner":"product","primary_worker":"worker-b","claimed_by":"worker-b","claimed_at":"2026-01-01T09:45:00Z","next_action":"Resume the same implementation batch from canonical task state; do not repeat completed work.","updated_at":"2026-01-01T09:45:00Z","artifacts":[],"decision_gate":null,"hard_gates_pending":[],"downstream_requires_ack":false}
\ No newline at end of file
diff --git a/labs/opc-company/fixtures/quota-failover/task.before.json b/labs/opc-company/fixtures/quota-failover/task.before.json
new file mode 100644
index 0000000..7f5efcf
--- /dev/null
+++ b/labs/opc-company/fixtures/quota-failover/task.before.json
@@ -0,0 +1 @@
+{"schema_version":1,"id":"product-release","title":"Implement and verify a small product change","status":"active","owner":"product","primary_worker":"worker-a","claimed_by":"worker-a","claimed_at":"2026-01-01T09:00:00Z","next_action":"Implement the change and produce validation evidence.","updated_at":"2026-01-01T09:00:00Z","artifacts":[],"decision_gate":null,"hard_gates_pending":[],"downstream_requires_ack":false}
\ No newline at end of file
diff --git a/labs/opc-company/schemas/disposition.schema.json b/labs/opc-company/schemas/disposition.schema.json
new file mode 100644
index 0000000..7d91710
--- /dev/null
+++ b/labs/opc-company/schemas/disposition.schema.json
@@ -0,0 +1 @@
+{"$schema":"https://json-schema.org/draft/2020-12/schema","$id":"https://example.invalid/opc/disposition.schema.json","title":"OPC Semantic Disposition","type":"object","required":["schema_version","message_id","consumer","status","decided_at"],"properties":{"schema_version":{"const":1},"message_id":{"type":"string","minLength":1},"consumer":{"type":"string","minLength":1},"status":{"enum":["ADOPTED","REJECTED","DEFERRED","DUPLICATE","UNKNOWN"]},"reason":{"type":"string"},"decided_at":{"type":"string","minLength":1}},"additionalProperties":false}
\ No newline at end of file
diff --git a/labs/opc-company/schemas/gate.schema.json b/labs/opc-company/schemas/gate.schema.json
new file mode 100644
index 0000000..9ebb987
--- /dev/null
+++ b/labs/opc-company/schemas/gate.schema.json
@@ -0,0 +1 @@
+{"$schema":"https://json-schema.org/draft/2020-12/schema","$id":"https://example.invalid/opc/gate.schema.json","title":"OPC Gate","type":"object","required":["schema_version","gate_id","kind","status"],"properties":{"schema_version":{"const":1},"gate_id":{"type":"string","minLength":1},"kind":{"enum":["human_approval","account","funds","publish","production","unknown"]},"status":{"enum":["OPEN","PASS","BLOCKED","UNKNOWN"]},"evidence":{"type":"array","items":{"type":"string"}}},"additionalProperties":false}
\ No newline at end of file
diff --git a/labs/opc-company/schemas/handoff.schema.json b/labs/opc-company/schemas/handoff.schema.json
new file mode 100644
index 0000000..4a71391
--- /dev/null
+++ b/labs/opc-company/schemas/handoff.schema.json
@@ -0,0 +1 @@
+{"$schema":"https://json-schema.org/draft/2020-12/schema","$id":"https://example.invalid/opc/handoff.schema.json","title":"OPC Handoff","type":"object","required":["schema_version","handoff_id","task_id","from","to","body","created_at"],"properties":{"schema_version":{"const":1},"handoff_id":{"type":"string","minLength":1},"task_id":{"type":"string","minLength":1},"from":{"type":"string","minLength":1},"to":{"type":"string","minLength":1},"body":{"type":"string","minLength":1},"created_at":{"type":"string","minLength":1},"receipt_ref":{"type":["string","null"]}},"additionalProperties":false}
\ No newline at end of file
diff --git a/labs/opc-company/schemas/organization.schema.json b/labs/opc-company/schemas/organization.schema.json
new file mode 100644
index 0000000..80b9f0e
--- /dev/null
+++ b/labs/opc-company/schemas/organization.schema.json
@@ -0,0 +1 @@
+{"$schema":"https://json-schema.org/draft/2020-12/schema","$id":"https://example.invalid/opc/organization.schema.json","title":"OPC Organization","type":"object","required":["schema_version","organization_id","roles"],"properties":{"schema_version":{"const":1},"organization_id":{"type":"string","minLength":1},"roles":{"type":"array","minItems":1,"items":{"type":"string","minLength":1},"uniqueItems":true}},"additionalProperties":false}
\ No newline at end of file
diff --git a/labs/opc-company/schemas/receipt.schema.json b/labs/opc-company/schemas/receipt.schema.json
new file mode 100644
index 0000000..a05925b
--- /dev/null
+++ b/labs/opc-company/schemas/receipt.schema.json
@@ -0,0 +1 @@
+{"$schema":"https://json-schema.org/draft/2020-12/schema","$id":"https://example.invalid/opc/receipt.schema.json","title":"OPC Completion Receipt","type":"object","required":["schema_version","receipt_id","task_id","worker","outcome","artifacts","validation","owner_writeback","created_at"],"properties":{"schema_version":{"const":1},"receipt_id":{"type":"string","minLength":1},"task_id":{"type":"string","minLength":1},"worker":{"type":"string","minLength":1},"outcome":{"enum":["completed","blocked","negative_result","partial"]},"artifacts":{"type":"array","items":{"type":"string"}},"validation":{"type":"array","items":{"type":"string"}},"owner_writeback":{"type":"boolean"},"downstream_ack":{"type":["object","null"]},"created_at":{"type":"string","minLength":1}},"additionalProperties":false}
\ No newline at end of file
diff --git a/labs/opc-company/schemas/role.schema.json b/labs/opc-company/schemas/role.schema.json
new file mode 100644
index 0000000..ae3c835
--- /dev/null
+++ b/labs/opc-company/schemas/role.schema.json
@@ -0,0 +1 @@
+{"$schema":"https://json-schema.org/draft/2020-12/schema","$id":"https://example.invalid/opc/role.schema.json","title":"OPC Role","type":"object","required":["schema_version","role_id","name","owner","responsibilities"],"properties":{"schema_version":{"const":1},"role_id":{"type":"string","minLength":1},"name":{"type":"string","minLength":1},"owner":{"type":"string","minLength":1},"responsibilities":{"type":"array","minItems":1,"items":{"type":"string","minLength":1}}},"additionalProperties":false}
\ No newline at end of file
diff --git a/labs/opc-company/schemas/task.schema.json b/labs/opc-company/schemas/task.schema.json
new file mode 100644
index 0000000..9495649
--- /dev/null
+++ b/labs/opc-company/schemas/task.schema.json
@@ -0,0 +1 @@
+{"$schema":"https://json-schema.org/draft/2020-12/schema","$id":"https://example.invalid/opc/task.schema.json","title":"OPC Task","type":"object","required":["schema_version","id","status","owner","primary_worker","next_action","updated_at","artifacts"],"properties":{"schema_version":{"const":1},"id":{"type":"string","minLength":1},"title":{"type":"string"},"status":{"enum":["active","waiting","monitoring","parked","archived"]},"owner":{"type":"string","minLength":1},"primary_worker":{"type":["string","null"]},"claimed_by":{"type":["string","null"]},"claimed_at":{"type":["string","null"]},"next_action":{"type":"string","minLength":1},"updated_at":{"type":"string","minLength":1},"artifacts":{"type":"array","items":{"type":"string"}},"decision_gate":{"type":["object","null"]},"hard_gates_pending":{"type":"array","items":{"type":"string"}},"downstream_requires_ack":{"type":"boolean","default":false}},"additionalProperties":true}
\ No newline at end of file
diff --git a/labs/opc-company/scripts/opc.py b/labs/opc-company/scripts/opc.py
new file mode 100644
index 0000000..dfabc57
--- /dev/null
+++ b/labs/opc-company/scripts/opc.py
@@ -0,0 +1,73 @@
+#!/usr/bin/env python3
+from __future__ import annotations
+import argparse, json
+from pathlib import Path
+
+VALID_STATUSES = {"active","waiting","monitoring","parked","archived"}
+
+def read_json(path):
+    return json.loads(Path(path).read_text(encoding="utf-8"))
+
+def lint_task(task):
+    errors=[]
+    for k in ("schema_version","id","status","owner","primary_worker","next_action","updated_at","artifacts"):
+        if k not in task: errors.append(f"missing:{k}")
+    if task.get("status") not in VALID_STATUSES: errors.append("invalid:status")
+    if task.get("claimed_by") and not task.get("claimed_at"): errors.append("claim_without_time")
+    if task.get("status") == "archived" and task.get("claimed_by"): errors.append("archived_but_claimed")
+    return errors
+
+def cmd_lint(args):
+    errors=[]
+    for p in args.files:
+        obj=read_json(p)
+        if isinstance(obj, dict) and "status" in obj and "id" in obj:
+            errors += [f"{p}:{e}" for e in lint_task(obj)]
+    if errors:
+        for e in errors: print("OPC_LINT_ERROR", e)
+        return 1
+    print(f"OPC_LINT_OK files={len(args.files)}")
+    return 0
+
+def cmd_status(args):
+    d=Path(args.company); tasks=[]
+    for p in sorted((d/"tasks").glob("*.json")): tasks.append(read_json(p))
+    active=[t for t in tasks if t.get("status")=="active"]
+    out={"task_count":len(tasks),"active_tasks":[t["id"] for t in active],"active_owners":sorted(set(t.get("owner") for t in active)),"pending_ack_tasks":[t["id"] for t in tasks if t.get("downstream_requires_ack")],"work_continuing":bool(active)}
+    print(json.dumps(out, indent=2)); return 0
+
+def cmd_verify(args):
+    task=read_json(args.task); receipt=read_json(args.receipt); errors=[]
+    if receipt.get("task_id") != task.get("id"): errors.append("task_id_mismatch")
+    if receipt.get("outcome") == "completed":
+        if not receipt.get("artifacts"): errors.append("missing_artifact")
+        if not receipt.get("validation"): errors.append("missing_validation")
+        if receipt.get("owner_writeback") is not True: errors.append("missing_owner_writeback")
+        if task.get("downstream_requires_ack"):
+            ack=receipt.get("downstream_ack")
+            if not isinstance(ack, dict) or ack.get("status") not in {"ADOPTED","REJECTED","DEFERRED","DUPLICATE"}: errors.append("missing_semantic_ack")
+    if errors:
+        for e in errors: print("OPC_VERIFY_REJECT", e)
+        return 1
+    print("OPC_VERIFY_PASS"); return 0
+
+def cmd_failover(args):
+    before=read_json(args.before); after=read_json(args.after); errors=[]
+    if before.get("id") != after.get("id"): errors.append("task_id_changed")
+    if before.get("owner") != after.get("owner"): errors.append("owner_changed")
+    if before.get("artifacts") != after.get("artifacts"): errors.append("artifacts_changed_during_failover")
+    if before.get("primary_worker") == after.get("primary_worker"): errors.append("worker_not_changed")
+    if errors:
+        for e in errors: print("OPC_FAILOVER_REJECT", e)
+        return 1
+    print(f"OPC_FAILOVER_PASS task={before.get('id')} from={before.get('primary_worker')} to={after.get('primary_worker')}"); return 0
+
+def main():
+    ap=argparse.ArgumentParser(prog="opc"); sp=ap.add_subparsers(dest="cmd",required=True)
+    p=sp.add_parser("lint"); p.add_argument("files",nargs="+"); p.set_defaults(fn=cmd_lint)
+    p=sp.add_parser("status"); p.add_argument("company"); p.set_defaults(fn=cmd_status)
+    p=sp.add_parser("verify"); p.add_argument("--task",required=True); p.add_argument("--receipt",required=True); p.set_defaults(fn=cmd_verify)
+    p=sp.add_parser("failover"); p.add_argument("--before",required=True); p.add_argument("--after",required=True); p.set_defaults(fn=cmd_failover)
+    args=ap.parse_args(); raise SystemExit(args.fn(args))
+
+if __name__=="__main__": main()
diff --git a/labs/opc-company/tests/run.py b/labs/opc-company/tests/run.py
new file mode 100644
index 0000000..aaf146f
--- /dev/null
+++ b/labs/opc-company/tests/run.py
@@ -0,0 +1,17 @@
+#!/usr/bin/env python3
+from pathlib import Path
+import subprocess, sys, json
+ROOT=Path(__file__).resolve().parents[1]; OPC=ROOT/"scripts/opc.py"
+def run(args, expected):
+    p=subprocess.run([sys.executable,str(OPC),*args],text=True,capture_output=True)
+    if p.returncode != expected:
+        print("TEST_FAIL",args,"expected",expected,"got",p.returncode); print(p.stdout,p.stderr); raise SystemExit(1)
+    return p.stdout
+for p in ROOT.rglob("*.json"): json.loads(p.read_text())
+out=run(["status",str(ROOT/"examples/synthetic-company")],0); assert '"work_continuing": true' in out
+out=run(["verify","--task",str(ROOT/"fixtures/false-completion/task.json"),"--receipt",str(ROOT/"fixtures/false-completion/receipt.json")],1); assert "missing_artifact" in out and "missing_validation" in out and "missing_owner_writeback" in out
+out=run(["verify","--task",str(ROOT/"fixtures/missing-ack/task.json"),"--receipt",str(ROOT/"fixtures/missing-ack/receipt.json")],1); assert "missing_semantic_ack" in out
+out=run(["verify","--task",str(ROOT/"examples/synthetic-company/tasks/product-release.json"),"--receipt",str(ROOT/"examples/synthetic-company/receipts/product-release.valid.json")],0); assert "OPC_VERIFY_PASS" in out
+out=run(["failover","--before",str(ROOT/"fixtures/quota-failover/task.before.json"),"--after",str(ROOT/"fixtures/quota-failover/task.after.json")],0); assert "OPC_FAILOVER_PASS" in out
+task_files=[str(p) for p in (ROOT/"examples/synthetic-company/tasks").glob("*.json")]; out=run(["lint",*task_files],0); assert "OPC_LINT_OK" in out
+print("OPC_TEST_OK")