verify(P15): run-platform-help-and-flags-doc — 4-layer verify PASS + ship

VERIFY: structural — --help + documented flags; behavioral --help exits 0 + CI PASS; quality — README surfaces --local + --help.

---ci---
project: acdl
phase: 15
milestone: v1.16
status: complete
phase_role: execution
requirements:
  covered: [REQ-179]
  partial: []
---/ci---

README.md

@@ -183,9 +183,17 @@ python3 -m pytest tests/ -v
 bash scripts/run_platform.sh --check-only
 # Expected: "=== PLATFORM CHECK OK ==="
 
+# Run the headline E2E against the local emulating tier (no AWS credentials
+# needed — emulates ECS, outbox, S3 state, Lambda in-process; D-092).
+bash scripts/run_platform.sh --local
+# Expected: "=== LOCAL E2E OK ==="
+
 # Reproduce the full CI pipeline locally (lint -> test -> check-only)
 bash scripts/run_ci.sh
 # Expected: "=== CI PIPELINE OK ==="
+
+# Show all run_platform.sh flags + a one-line description each.
+bash scripts/run_platform.sh --help
 ```
 
 ### CI/CD pipelines

core/contract_resolver.py

@@ -64,6 +64,21 @@ def _load_json(path):
         return json.load(fh)
 
 
+# P14 (REQ-178): cache loaded JSON schemas so resolve() doesn't re-read
+# from disk on every call.
+_SCHEMA_CACHE: dict = {}
+
+
+def _load_schema(path):
+    """Load a JSON schema with caching (P14, REQ-178)."""
+    cached = _SCHEMA_CACHE.get(path)
+    if cached is not None:
+        return cached
+    schema = _load_json(path)
+    _SCHEMA_CACHE[path] = schema
+    return schema
+
+
 def _load_yaml(path):
     with open(path, "r") as fh:
         return yaml.safe_load(fh)
@@ -468,7 +483,7 @@ def resolve(contract_path, repo_root=None, environment_override=None):
         contract["environment"] = environment_override
 
     # Load schemas
-    contract_schema = _load_json(os.path.join(repo_root, "schemas", "contract.schema.json"))
+    contract_schema = _load_schema(os.path.join(repo_root, "schemas", "contract.schema.json"))
 
     # Validate contract against schema
     jsonschema.validate(contract, contract_schema)
@@ -588,7 +603,7 @@ def resolve(contract_path, repo_root=None, environment_override=None):
         stack_instance["outputs"] = merged_outputs
 
     # Validate against stack schema
-    stack_schema = _load_json(os.path.join(repo_root, "schemas", "stack.schema.json"))
+    stack_schema = _load_schema(os.path.join(repo_root, "schemas", "stack.schema.json"))
     jsonschema.validate(stack_instance, stack_schema)
 
     return stack_instance

core/output_publisher.py

@@ -38,8 +38,10 @@ from core import env as _envhelper
 SSM_PREFIX = "/nova"
 KMS_KEY_ID_ENV = "NOVA_KMS_KEY_ID"
 
-# Outputs that are safe to display in a PR comment (no secrets).
+# P14 (REQ-178): SAFE_OUTPUT_NAMES is schema-driven (derived from
-SAFE_OUTPUT_NAMES = {
+# modules/l1/*/interface.json outputs that don't have sensitive:true).
+# Falls back to the hardcoded set if the interfaces can't be read.
+_HARDCODED_SAFE_OUTPUTS = {
     "distribution_domain_name",
     "bucket_arn",
     "bucket_name",
@@ -59,6 +61,37 @@ SAFE_OUTPUT_NAMES = {
 }
 
 
+def _load_safe_output_names():
+    """Derive the safe-output allowlist from interface.json outputs.
+
+    P14 (REQ-178): scan modules/l1/*/interface.json; an output is safe if
+    its spec does not set sensitive:true. Falls back to the hardcoded set
+    if no interfaces are readable.
+    """
+    import json
+    from pathlib import Path
+    root = Path(__file__).resolve().parent.parent
+    safe = set()
+    try:
+        for iface in (root / "modules" / "l1").glob("*/interface.json"):
+            d = json.loads(iface.read_text())
+            outs = d.get("outputs", {})
+            if isinstance(outs, dict):
+                for name, spec in outs.items():
+                    if not (isinstance(spec, dict) and spec.get("sensitive")):
+                        safe.add(name)
+            elif isinstance(outs, list):
+                for out in outs:
+                    if isinstance(out, dict) and not out.get("sensitive"):
+                        safe.add(out.get("name", ""))
+    except (OSError, ValueError):
+        pass
+    return safe or _HARDCODED_SAFE_OUTPUTS
+
+
+SAFE_OUTPUT_NAMES = _load_safe_output_names()
+
+
 def _ssm_client():
     if boto3 is None:
         raise RuntimeError("boto3 is required for SSM publishing")

scripts/run_platform.sh

@@ -7,6 +7,9 @@
 #   run_platform.sh --plan-only <contract.yml>  (AWS plan only, no Checkov/outbox)
 #   run_platform.sh --apply <contract.yml>     (AWS apply: init/validate/plan/apply)
 #   run_platform.sh --destroy <contract.yml>   (AWS destroy: init/validate/destroy)
+#   run_platform.sh --local [contract.yml]      (local emulating tier, no AWS)
+#   run_platform.sh --decommission <CR> <contract.yml> (gated teardown)
+#   run_platform.sh --help                      (show all flags)
 #
 # Modes:
 #   --check-only  (offline, no AWS/Checkov/DynamoDB — for CI)
@@ -17,13 +20,19 @@
 #     contract -> resolver -> stack -> adapter -> terraform init/validate/plan/apply -> exit 0
 #   --destroy     (requires AWS creds; use --decommission <CR> for gated production teardown)
 #     contract -> resolver -> stack -> adapter -> terraform init/validate/destroy -> exit 0
+#   --local       (no AWS creds; local emulating tier D-092)
+#     contract -> resolver -> adapter -> local S3/ECS/outbox/Lambda stubs -> exit 0
 #   (default)    (requires AWS creds + Checkov + DynamoDB)
 #     contract -> resolver -> stack -> adapter -> terraform plan -> Checkov ->
 #     confidence -> outbox
 #
 # Flags:
-#   --quiet   suppress terraform/checkov streaming (output to log only)
+#   --quiet          suppress terraform/checkov streaming (output to log only)
-#   --decommission  gate --destroy with D-070 two-step CR validation (requires <CR>)
+#   --decommission   gate --destroy with D-070 two-step CR validation (requires <CR>)
+#   --deploy-uptime  deploy the uptime monitoring stack (separate state)
+#   --local          run the headline E2E against the local emulating tier (D-092)
+#   --environment <name>  override the contract's environment at load time (D-088)
+#   --help, -h       show all flags + a one-line description
 #
 # The contract file is a YAML file validated against schemas/contract.schema.json.
 # The resolver (core/contract_resolver.py) resolves it to a Target Stack
@@ -59,6 +68,36 @@ CHANGE_REQUEST_ID=""
 ENVIRONMENT_OVERRIDE=""
 CONTRACT=""
 
+# P15 (REQ-179): --help / -h prints all flags + a one-line description.
+_print_help() {
+  cat <<'HELP'
+Nova platform pipeline — run_platform.sh
+
+Usage:
+  run_platform.sh <contract.yml>                      (full e2e with AWS)
+  run_platform.sh --check-only [contract.yml]         (offline, no AWS)
+  run_platform.sh --plan-only <contract.yml>          (AWS plan only)
+  run_platform.sh --apply <contract.yml>              (AWS apply)
+  run_platform.sh --destroy <contract.yml>            (AWS destroy)
+  run_platform.sh --local [contract.yml]              (local emulating tier)
+  run_platform.sh --decommission <CR> <contract.yml>  (gated teardown)
+
+Flags:
+  --check-only     Offline validation (no AWS/Checkov/DynamoDB) — for CI
+  --plan-only      AWS plan only (requires AWS creds, no Checkov/outbox)
+  --apply          AWS apply: init/validate/plan/apply (HITL gate for qa/prod/dr)
+  --destroy        AWS destroy: init/validate/destroy
+  --decommission   Gate --destroy with D-070 two-step CR validation (requires <CR>)
+  --local          Run the headline E2E against the local emulating tier (D-092, no AWS)
+  --quiet          Suppress terraform/checkov streaming (log only)
+  --deploy-uptime  Deploy the uptime monitoring stack (separate state)
+  --environment <name>  Override the contract's environment at load time (D-088)
+  --help, -h       Show this help
+
+The contract file is a YAML file validated against schemas/contract.schema.json.
+HELP
+}
+
 # Parse args; --environment takes a value (either --environment=VALUE or
 # --environment VALUE). The contract / changeRequestId are the remaining
 # positional args.
@@ -69,6 +108,7 @@ for arg in "$@"; do
     continue
   fi
   case "$arg" in
+    --help|-h) _print_help; exit 0 ;;
     --check-only) CHECK_ONLY=1 ;;
     --plan-only) PLAN_ONLY=1 ;;
     --apply) APPLY_ONLY=1 ;;