# ACDL AWS Cost Report (v1.0 → v1.10)

> **Query date:** 2026-07-28
> **Source:** AWS Cost Explorer (`ce:GetCostAndUsage`)
> **Window:** 2026-07-21 → 2026-07-28 (v1.0 ship → v1.10 complete)
> **Account:** 581513795199 (us-east-1)
> **Closes:** G-008 (no cost documentation despite live AWS resources)

## Summary

| Metric | Value |
|--------|-------|
| Total spend (8 days) | **$0.001883** |
| Daily average | $0.000235 |
| Projected monthly | ~$0.007 |
| Peak day | 2026-07-27 ($0.000867 — v1.10 regression + verify run) |

**Verdict:** The ACDL platform cost is effectively zero — less than one cent
over 8 days of active development and testing. The cost is dominated by S3
(terraform state bucket, $0.001860). No compute costs (ECS/Lambda) were
incurred because the v1.0→v1.10 platform was plan-only (terraform plan, not
apply) for IAM-gated capabilities. The v1.11 lifecycle pipeline will incur
transient costs during apply→modify→destroy cycles, but these are
self-cleaning (destroy enforced).

## Daily Breakdown

| Date | Spend (USD) | Notes |
|------|-------------|-------|
| 2026-07-21 | $0.000622 | v1.0 ship day — initial S3 state bucket + DynamoDB outbox |
| 2026-07-22 | $0.000111 | v1.1–v1.3 development |
| 2026-07-23 | $0.000063 | v1.4–v1.5 development |
| 2026-07-24 | $0.000063 | v1.6–v1.7 development |
| 2026-07-25 | $0.000063 | v1.8 development |
| 2026-07-26 | $0.000094 | v1.9 development + stub testing |
| 2026-07-27 | $0.000867 | v1.10 regression + verify run (peak — local E2E + live terraform plan) |
| 2026-07-28 | $0.000000 | v1.11 restart (cost query day, no spend yet) |
| **TOTAL** | **$0.001883** | |

## By Service

| Service | Spend (USD) | % of total |
|---------|-------------|------------|
| Amazon Simple Storage Service | $0.001860 | 98.8% |
| AWS Secrets Manager | $0.000015 | 0.8% |
| Amazon DynamoDB | $0.000008 | 0.4% |

### S3 ($0.001860)

The `acdl-tfstate-581513795199-us-east-1` bucket stores terraform state for
all ACDL stacks. Cost is driven by:
- Storage: ~50 state files × <1KB each = negligible
- Requests: terraform init/plan/apply S3 API calls during development

### Secrets Manager ($0.000015)

One secret stored: `acdl/aws-creds` (used by the deploy pipeline for
consumer repos). $0.40/month per secret → prorated to ~$0.0000625/day.

### DynamoDB ($0.000008)

The `acdl-outbox` table (D-091 regression gate, CAP-015). Provisioned
capacity with minimal reads/writes during regression runs.

## v1.11 Cost Projection

The v1.11 lifecycle pipeline (P59–P62) runs terraform apply→modify→destroy
against live AWS for each L1 and L2 module. Estimated transient costs:

| Resource | Est. cost per lifecycle cell | Cells | Total est. |
|----------|-------------------------------|-------|------------|
| S3 bucket (per module) | ~$0.0001 (create + destroy) | 24 L1 + 2 L2 | ~$0.003 |
| ECS Fargate (microservice) | ~$0.01 (brief run + destroy) | 2 | ~$0.02 |
| ALB (microservice) | ~$0.005 (create + destroy) | 2 | ~$0.01 |
| RDS (rds module) | ~$0.02 (brief run + destroy) | 2 | ~$0.04 |
| CloudFront (static-assets) | ~$0.001 (create + destroy) | 2 | ~$0.002 |
| **Total v1.11 transient** | | | **~$0.075** |

All resources are destroyed by the pipeline's destroy step + the
`ci-vpc-destroy` cleanup job. No persistent resources remain after the run
(D-096 teardown mandatory, enforced by P64).

## Cost Ceiling Guidance

Per G-008 binding decision: the ACDL platform must operate at
**zero-cost steady state** — no live resources between test runs. This is
enforced by:
1. The `ci-vpc-destroy` job in `modules-lifecycle.yml` (always runs, `if:
   always()`).
2. The per-module destroy step in each lifecycle cell.
3. The P64 `--decommission` teardown (D-070 two-step, CR CHG0680001).

Any cost spike > $1/day is an anomaly and should be investigated via Cost
Explorer. The v1.0→v1.10 spend ($0.001883 over 8 days) is the baseline.

## Methodology

- **Query:** `boto3.client('ce').get_cost_and_usage()` with
  `Granularity='DAILY'`, `Metrics=['BlendedCost']`, and
  `GroupBy=[{'Type': 'DIMENSION', 'Key': 'SERVICE'}]`.
- **Credentials:** `ACDL_AWS_ACCESS_KEY_ID` / `ACDL_AWS_SECRET_ACCESS_KEY`
  from `.env.secrets` (spike-runner IAM principal).
- **Limitation:** Cost Explorer data has a 24h delay; the 2026-07-28 value
  ($0.000000) may update after the billing pipeline processes the day's
  usage. The v1.11 lifecycle pipeline costs are not yet reflected.
- **Reproducibility:** Run `python3 -c "import boto3; ce = boto3.client('ce', region_name='us-east-1'); print(ce.get_cost_and_usage(TimePeriod={'Start':'2026-07-21','End':'2026-07-29'},Granularity='MONTHLY',Metrics=['BlendedCost']))"`