Phase 4 — Run 7: Documentation Deliverables (G-F)

Overview

Branch / PR: jmpicnic/email-integration-phase-4 (documentation worktree) → PR phase-4-G-F against Arda-cards/documentation main. Group: G-F (documentation). Tasks: T-D4 (secret-delivery-pattern.md content), T-D5 (per-partition mail pages in current-system/runtime/), T-D6 (postmark-service updates), T-D7 (encryption-key rotation runbook), T-D2 (docs CHANGELOG). Working directory: /Users/jmp/code/arda/projects/email-integration-worktrees/phase-4/documentation. AWS impact: None. Personas: technical-writer for content authoring; quality-reviewer for documentation review (per specification.md § 1.6).

This run produces the public-facing documentation that reflects what Phases 1-4 built. It lands last so the docs match merged code rather than design intent.

Entry criteria

Runs 1-5 PRs merged; partition mail surface live for all four active partitions.
Run-6 PR merged; runtime-platform-drift workflow operational.
All operator sign-off rows in ../../../design/verification.md populated for runs 1-6.

Tasks

Task	Description	Files touched	Persona
T-D4	Fill `secret-delivery-pattern.md` content with `partitionSecrets.cfn.yaml` + Phase 4 Postmark token as worked examples; bump `maturity: draft` → `review`	`current-system/oam/security/secret-delivery-pattern.md`	`technical-writer`
T-D5	Per-partition mail pages under `current-system/runtime/` (suggested: `partition-mail-topology.md`)	new files under `current-system/runtime/`	`technical-writer`
T-D6	Postmark-service updates for multi-partition / multi-Signature inventory	`current-system/oam/postmark-service/*.md`	`technical-writer`
T-D7	Encryption-key rotation operator runbook	new file under `current-system/oam/postmark-service/` or `current-system/runtime/`	`technical-writer`
T-D2	Docs `## CHANGELOG` block in the PR description (PR-body model; do not edit `CHANGELOG.md` directly)	PR description	`devops-engineer` / `technical-writer`

Documentation quality review per spec.md § 1.6: each new page goes through a quality-reviewer sub-agent before merge.

Worktree strategy

Single working directory: /Users/jmp/code/arda/projects/email-integration-worktrees/phase-4/documentation.

Validation

validate-exit.sh runs make pr-checks (build + link check + smoke tests) and verifies the new pages exist with correct frontmatter (description 40-300 chars, maturity: review, no in-body H1) per the authoring rules.

Exit criteria

secret-delivery-pattern.md frontmatter maturity: review; body covers partitionSecrets.cfn.yaml + Phase 4 Postmark token + rotation flow.
At least one new page under current-system/runtime/ describing partition mail topology (4 sub-zones, NS-delegation chain, account-to-partition mapping).
Existing pages under current-system/oam/postmark-service/ extended to reflect the multi-partition Sender Signature inventory.
Encryption-key rotation runbook exists; linked from the Phase 1 operator-runbook.md.
make pr-checks passes (build, link check, smoke tests).
PR description contains a ## CHANGELOG block with at least one valid category and entry; changelog-check workflow green.
Technical-writer review findings addressed.
PR opened; checks green; reviewer approval; merged.

References

../../choreography.md § 7 — Phase 4 completion criteria.
../../../design/specification.md — T-D4, T-D5, T-D6, T-D7, T-D2.
../../../../../../../about/authoring/index.md — schema enforced at build time.