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docs(P47): presentation slide updates + HIPAA removal from all docs
Presentation changes (both Marp decks + source markdown):
1. Title slide: deck title as H1 (slightly bigger), 'Agentic Cloud Delivery
   Platform' as H3 subtitle — cleaner title hierarchy
2. DX deck: removed Local Reproducibility slide (not beneficial for DX)
3. DX deck: Safe Promotion Path slide redesigned with side-by-side layout
   for Approaches A and B (HTML table, two columns)
4. DX deck: 'an agent' → 'an AI agent' (slide 2 + Citizen Developer slide)
5. DX deck: What a Developer Does — diagram floated to the right side
6. Header simplified to just the deck name (subtitle now on title slide)

HIPAA removal (25 files):
- Completely removed all HIPAA references from all markdown documentation,
  presentation source files, module READMEs, and rendered HTML
- Removed HIPAA from compliance milestone lists (GDPR, SOX, SOC2, DORA remain)
- Removed HIPAA section references (§164.xxx) from compliance annotations
- Cleaned up empty parentheses and broken commas left by removal
- Re-rendered both HTML decks from updated Marp source

---ci---
phase: 47
milestone: v1.9
status: complete
requirements:
  covered: []
  partial: []
---/ci---
2026-07-23 14:08:40 +00:00

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Markdown

---
marp: true
theme: default
paginate: true
size: 16x9
header: "How The Platform Works"
footer: "Internal"
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---
<!-- _class: title -->
<!-- _paginate: false -->
# How The Platform Works
### Agentic Cloud Delivery Platform
<style>
section.title h1 { font-size: 44px; margin-bottom: 0.1em; }
section.title h3 { color: #F0F0F0; font-weight: 400; font-size: 22px; margin-top: 0; }
</style>
---
# The Problem We Solve
Software delivery scales with the **coordination surface around it**, not the engineering inside it.
Two frictions slow every team:
- **Cognitive load** — authoring the infrastructure that runs a service *correctly*. The long tail of services that are difficult to deploy, inconsistent in security and observability posture.
- **Operational work** — moving a merged change from "merged" to "running in production with policy, observability, and security enforced." Manual work that **scales with the system, not with the change.**
The platform absorbs **both** frictions.
---
# The North Star
> Consumers **declare intent**; the platform delivers **safe production deployment** — automatically, safely, and with a complete audit trail.
Success looks like:
- A merged change progresses through lower environments **without a platform engineer joining a thread, approving a ticket, or triggering a stage.**
- A **non-technical consumer** ships a production deployment by declaring intent — without authoring a workflow, a configuration file, or an infrastructure module.
- Every production change is **traceable to a human attestation and an immutable evidence stream.**
---
# The Contract-Driven Model
One small YAML file is all a consumer writes. The platform owns everything else.
![w:900](assets/png/platform-works-01-contract-driven.png)
The contract names three things:
- **Which module** — a catalog of pre-built, security-reviewed building blocks
- **Which environment** — the platform raises the safety bar automatically as sensitivity rises
- **Which inputs** — the handful of values that vary per deployment
---
# The End-to-End Flow
Every deployment runs the same stages, in the same order, with the same checks — no team-specific pipelines, no tribal runbooks.
![w:1100](assets/png/platform-works-02-end-to-end-flow.png)
- **Security and policy checks run *before* any infrastructure is created**
- **Every stage produces a record** that feeds the confidence signal and the evidence stream — there is no "unchecked" path
---
# Zero-Trust by Default
Consumer repositories hold **no long-lived cloud credentials.** Ever.
- **Authentication — OIDC federation.** Each job mints a short-lived token; no credential is stored in the consumer repo or in a runner secret. <span class="badge today">Available today (GitHub Actions)</span> <span class="badge planned">Planned: all runners</span>
- **Authorization — attribute-based (ABAC), not role-based.** Two attribute classes scope every action:
- **Repository identity** — the role's trust policy binds to the exact consumer repo + branch
- **Resource tags** — every resource is tagged `acdl:owner` + `acdl:contract`; the session policy grants access **only to matching tags**
**The effect:** a consumer can only touch the resources it created. Blast radius is contained. One consumer can never affect another.
---
# Safety is Computed, Not Assumed
Every delivery action produces a **measurable, explainable confidence signal** — the platform's certified answer to *"is this safe to proceed?"*
- **Six weighted inputs:** policy conformance, validation, freshness, source provenance, history, NFRs
- **Per-environment thresholds** that rise with sensitivity:
| Environment | Threshold | Attester |
|---|---|---|
| dev | ≥ 0.50 | No one — autonomous |
| qa | ≥ 0.75 | QA |
| prod | ≥ 0.90 | SRE |
| dr | ≥ 0.95 | SRE + DR drill |
- **A single critical finding hard-blocks the deployment** — critical findings are not averaged away
- **When the platform halts, it gives a measured reason** — never an opaque debugging exercise
---
# Policy & Security Enforcement
Checks run on **every** deployment, normalized to a single schema regardless of which engine produced them.
- **Infrastructure policy** (Checkov) — secrets in plaintext, public ingress, IAM wildcards, KMS references, **required tagging standards** (`acdl:owner`, `acdl:contract`, `acdl:environment`, `acdl:cost-center`) <span class="badge today">Available today</span>
- **Cloud security posture** (Wiz adapter) — translates cloud security findings into the same normalized record <span class="badge today">Adapter ready</span>
- **Kubernetes-native policy** (Kyverno adapter) — ready for the GitOps reconciler <span class="badge today">Adapter ready</span>
Every check produces a record with **severity, rule ID, pass/fail status, and a human-readable message** — consumed uniformly by the confidence signal.
---
# Secure by Default
Security defaults that **do not require a team to opt in.** <span class="badge today">Available today</span>
- **Encryption on every resource** — at-rest encryption on by default for every primitive (S3, RDS, ECR, ECS, and more)
- **Per-stack customer-managed keys** — one key per deployment, 90-day rotation, **no shared keys across stacks**
- **Managed-key fallback with a loud warning** — silent use of cloud-managed keys is a security gap we refuse to hide
- **Deletion protection on by default** — `prevent_destroy` on unless a consumer explicitly disables it via a documented flag
- **Safe decommission** — a 2-step pipeline (disable protection → zero counts → destroy) with **two SRE attestation gates** and a **change-request validated against the CMDB**
---
# Immutable Audit & Evidence
Version control is a **coordination tool, not an evidentiary fortress.** True compliance requires an immutable, externally-stored ledger.
- **Every deployment writes a hash-chained evidence event** — each event links to the previous via a cryptographic hash; tampering breaks the chain <span class="badge today">Available today</span>
- **Tiered storage:** cold, tamper-proof source of truth (S3 Object Lock, 7-year retention) + a hot query index <span class="badge today">Outbox shipped</span> <span class="badge planned">Full ledger: planned</span>
- **RPO = 0** — the evidence write is synchronous; a deployment is not acknowledged until the evidence event is durably recorded
- **Every production change is traceable to a human attestation** — approver identities are the only durable record outside the forge's audit log
---
# Human-in-the-Loop Where It Matters
Autonomy and accountability are **not in tension** — they apply at different environments.
- **Dev is fully autonomous.** The confidence signal (≥ 0.50) is the only gate. Queue-based handoffs are eliminated from lower environments.
- **qa, prod, and dr require deliberate human attestation** — not rubber stamps, but policy-mandated acts of accountability via protected deployment approvals.
- **Separation of duties is enforced** — the QA approver **cannot** be the prod approver. The platform reads both identities from the outbox and **blocks on a match.** <span class="badge today">Design shipped</span> <span class="badge planned">Wiring: planned</span>
- **Timeout discipline** — 1 business day = warn + escalate; 2 business days = auto-freeze + re-submit
---
# Observability Built In
Monitoring is **a platform default, not a per-team project.** <span class="badge today">Available today</span>
- **Uptime monitoring deployed automatically with every stack** — a dedicated monitoring instance is provisioned after any module deploy, in a separate state, with a feature flag to disable
- **Monitored endpoints passed from the deployment's own outputs** — no manual endpoint registration
- **Alert channels:** Microsoft Teams webhook, email, SMS, and GitHub issues
- **The uptime URL is published to the developer** via a PR comment — they don't hunt for it
- **Roadmap:** deeper observability bootstrap (dashboards, runbooks, on-call bindings) as first-class contract fields
---
# Platform-Managed Environments
A consumer provides **no AWS account, no VPC, no subnet, no state backend, no runner key.** The platform owns the blast radius.
A named environment is a platform-owned bundle of:
- An AWS account (or a scoped partition of one)
- A network (VPC + subnets)
- A state backend (S3 + DynamoDB for state + locking)
- An IAM role surfaced via ABAC, scoped to the consumer's identity and resource tags
The consumer selects an environment **by name** in their contract. The platform resolves the name to the underlying resources at run time. **The consumer never sees raw credentials.**
**Friendly onboarding:** the first run detects no environment and emits a guided prompt (not an opaque failure). <span class="badge today">Available today</span> <span class="badge planned">Self-service: planned</span>
---
# Portability & Future-Proofing
The platform is **opinionated, but not painted into a corner.**
- **Substrate-agnostic core.** The contract, the resolved stack, the policy results, the confidence signal, and the evidence stream are all defined *without reference to any specific infrastructure tool.* <span class="badge today">1 adapter: Terraform</span> <span class="badge planned">OpenTofu / Pulumi / K8s</span>
- **Forge-agnostic contract ingestion.** The platform Lambda reads a configurable API base for GitHub or Gitea. <span class="badge today">Available today</span>
- **Portable contracts.** A second forge needs a forge adapter + a workflow translator — **no change to modules, contracts, confidence, or audit**
- **Pattern recognition compounds value over time.** As the platform observes recurring patterns, it can synthesize reusable modules. <span class="badge planned">Future capability</span>
---
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# Roadmap: Shipped vs. Planned
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**Available today**
- Contract-driven deploys with a versioned reusable workflow
- Module catalog (primitives + modules) with validated examples
- Zero-trust OIDC + ABAC on GitHub Actions runners
- Security + policy checks before infra creation (Checkov; Wiz + Kyverno ready)
- Confidence signal (6 inputs, per-env thresholds) gating promotion
- Hash-chained, tamper-evident evidence outbox (RPO = 0)
- Encryption by default + per-stack customer-managed keys
- Deletion protection by default + safe decommission with SRE gates
- Uptime monitoring deployed automatically with every stack
- Platform-managed environments + friendly onboarding
- Local reproducibility + forge-agnostic contract ingestion
**Planned (on the roadmap)**
- Real OIDC federation on all platform runners
- HITL wiring for qa / prod / dr environments
- Full regulatory ledger: S3 Object Lock + JWS signatures + daily checkpoints
- Compliance milestone: GDPR, SOX, SOC2, DORA extension points
- Environment self-service provisioning
- Dynamic module creation from a contract (agentic citizen-developer flow)
- Additional substrate adapters (OpenTofu, Pulumi, Kubernetes CRDs)