New Blog Post — Session Policy 4-Layer Sync Journey

Date
ImpactMedium

Context

Among technical experiences accumulated across 10 sprints (68~76) since Sprint 67, selected a topic for a blog post. PM chose "Session Policy 4-Layer Sync Journey" from 5 candidates (session sync, security runbook, MDX visualization, AI fact-check, cloudflared saga). Wrote Sprint 71's SessionPolicyModule introduction process as the 7th blog post.

Decisions

D1: Selected Sprint 71 Session Policy Journey as Blog Topic

  • Context: 5 blog content candidates derived from Sprint 68~76 work. Real-world debugging + design improvement story has the broadest reader resonance and differentiates from the existing 6 posts (architecture/agent introduction).
  • Choice: "Session Policy 4-Layer Sync Journey" — records the JWT TTL · Cookie maxAge · sliding threshold · frontend timer 4-layer mismatch bug → SessionPolicyModule SSoT resolution process.
  • Alternatives: next-mdx-remote 6.0 migration, CI deprecation response, cloudflared saga, AI fact-check — all valid but ranked lower in terms of story completeness and reader resonance.
  • Code Paths: blog/content/adr/session-policy-sync.mdx

D2: Sprint 76 ADR Bundled Commit

  • Context: Sprint 76 ADR (docs/adr/sprints/sprint-76.md) had been left in untracked state.
  • Choice: Include in the blog post commit to handle as a single commit.
  • Alternatives: Separate commit — content is documentation-only, so a single commit is more efficient.
  • Code Paths: docs/adr/sprints/sprint-76.md

Patterns

P1: Blog Post Composition Using Existing Visual Component Combinations

  • Where: blog/content/adr/session-policy-sync.mdx
  • When to Reuse: When writing new blog posts. The combination of MetricGrid (numeric comparison), Mermaid (flowchart), PhaseTimeline (step-by-step progress), and Callout (checklist/warning) is well-suited for the technical journey post format.

Metrics

  • Commits: 1 (3133cb4)
  • Files changed: 2 (+359 lines)
    • New: blog/content/adr/session-policy-sync.mdx (295 lines)
    • New: docs/adr/sprints/sprint-76.md (64 lines)
  • Build verification: Next.js static build success, 7 posts exported normally