# Phase 13 — l1-catalog-for-ecs (v1.2) VERIFY

**Verdict: Phase 13: VERIFIED**
**Tag: v1.2.3**
**Date: 2026-07-21**

---

## Scope

Phase 13 authors six IR-typed L1 modules for an ECS Fargate microservice
(`l1-vpc`, `l1-ecs-cluster`, `l1-ecs-service`, `l1-iam-role`, `l1-alb`,
`l1-ecr`), registers them in `modules-ir/registry.json`, and generalizes
the Terraform adapter from S3-specific to a table-driven emitter handling
all 12 IR types via `TYPE_MAP` + `INPUT_MAP` + `OUTPUT_MAP`. Requirement
covered: **REQ-31**.

## Verification layers

### 1. Structural

- 6 new L1 directories under `modules-ir/l1/`, each with `interface.json` + `README.md`.
- `modules-ir/registry.json` updated: 8 entries (7 L1s + l2-static-asset), all 6 new at 1.0.0, deprecated=false.
- `adapters/terraform/adapter.py` generalized: `TYPE_MAP` has 12 IR types; `INPUT_MAP` + `OUTPUT_MAP` for non-identity mappings; generic `_emit_resource`; S3 versioning NFR preserved.
- `scripts/verify_phase13.sh` exists (+x).
- `.ciagent/PLAN.md` updated to Phase 13.
- **PASS.**

### 2. Behavioral (`scripts/verify_phase13.sh`)

```
=== Phase 13 verification ===
L1 directories: OK (6 new + l1-s3)
  l1-vpc: aws:ec2:vpc (4 inputs, 3 outputs)
  l1-ecs-cluster: aws:ecs:cluster (2 inputs, 2 outputs)
  l1-ecs-service: aws:ecs:task_definition (10 inputs, 2 outputs)
  l1-iam-role: aws:iam:role (4 inputs, 2 outputs)
  l1-alb: aws:elbv2:loadbalancer (6 inputs, 3 outputs)
  l1-ecr: aws:ecr:repository (2 inputs, 2 outputs)
interface.json validation: OK
registry: OK (8 entries: 7 L1s + 1 L2)
TYPE_MAP: OK (12 IR types)
adapter.py: py_compile OK
S3 regression: OK (v1.1 spike l1-s3 adapts identically)
IR schema availability: OK (interface contracts have valid L1 shape)
.ciagent/ consistency: OK

=== Phase 13: VERIFIED ===
```

All assertions pass. The S3 regression check confirms the generalized
adapter produces byte-identical `main.tf` for the v1.1 spike's
`l1-s3/spike_instance.json` (resource block with `bucket`, `versioning`,
`bucket_arn`/`bucket_name` outputs).
- **PASS.**

### 3. Security

- No credentials introduced. The L1 interfaces declare inputs/outputs only; no AWS key material.
- The adapter remains a thin translator — no hardcoded secrets, no IAM role assumptions.
- The `spike_runner_policy.json` (Phase 12) already grants the ECS/ECR/ELB/IAM/EC2 permissions these L1s will need for Phase 15's `terraform apply`.
- **PASS.**

### 4. Quality

- The adapter generalization preserves the v1.1 contract: S3 is the regression baseline, and its `main.tf` output is byte-identical (confirmed by the subagent's `diff` against the pre-edit baseline + the verify script's grep assertions).
- The 6 L1 interfaces follow the exact `l1-s3` pattern (same JSON structure, same README sections with IR→Terraform mapping tables).
- Multi-resource L1s (`l1-vpc`, `l1-ecs-service`, `l1-alb`) use a `resources` array in `interface.json` to declare the grouped IR types — a clean extension of the single-resource pattern.
- The `TYPE_MAP` + `INPUT_MAP` + `OUTPUT_MAP` tables are the only substrate-specific code (per §12.2); the L1 content is substrate-agnostic.
- **PASS.**

## P0 / P1

- **P0: none.**
- **P1: none.** The adapter handles the ECS task definition's `container_definitions` (a JSON string built from image/port/env) via a targeted transformation — not a hardcoded shape, but the one pragmatic mapping the plan called for.

## Requirements covered

- **REQ-31:** Six new IR-typed L1 modules exist under `modules-ir/l1/` and are registered in `modules-ir/registry.json`: `l1-vpc` (4 inputs, 3 outputs, IR types aws:ec2:vpc/subnet/routetable), `l1-ecs-cluster` (2/2, aws:ecs:cluster), `l1-ecs-service` (10/2, aws:ecs:task_definition + aws:ecs:service), `l1-iam-role` (4/2, aws:iam:role), `l1-alb` (6/3, aws:elbv2:loadbalancer/listener/targetgroup), `l1-ecr` (2/2, aws:ecr:repository). The adapter `TYPE_MAP` is expanded to 12 IR types. The v1.1 `l1-s3` regression passes (byte-identical output). **VERIFIED.**

## Conclusion

Phase 13 is VERIFIED. The L1 catalog is ready for Phase 14's
`l2-microservice` thin-composition (which will reference these 6 L1s)
and Phase 15's `terraform apply` (which will provision them). The adapter
is now a clean table-driven translator — adding future L1s (v1.3+) is a
matter of extending the three maps, not writing new emit logic.