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AI Becomes the Engineering Runtime: PDCVR, Agent Stacks, Executable Workspaces

AI Becomes the Engineering Runtime: PDCVR, Agent Stacks, Executable Workspaces

Published Jan 3, 2026

Still losing hours to rework and scope creep? New practitioner threads (Jan 2–3, 2026) show AI shifting from ad‐hoc copilots to an AI‐native operating model—and here’s what to act on. A senior engineer published a production‐tested PDCVR loop (Plan‐Do‐Check‐Verify‐Retrospect) using Claude Code and GLM‐4.7 and shared prompts and subagent patterns on GitHub; it turns TDD and PDCA ideas into a model‐agnostic SDLC shell that risk teams in fintech/biotech/critical infra can accept. Teams report layered agent stacks with folder‐level manifests plus a meta‐agent cut routine 1–2 day tasks from ~8 hours to ~2–3 hours. DevScribe surfaces executable workspaces (databases, diagrams, API testing, offline‐first). Data backfills are being formalized into PDCVR flows. Alignment tax and scope creep are now measurable via agents watching Jira/Linear/RFC diffs. Immediate takeaway: pilot PDCVR, folder priors, agent topology, and an executable cockpit; expect AI to become engineering infrastructure over the next 12–24 months.

How AI Becomes Infrastructure: PDCVR, Agent Hierarchies, and Executable Workspaces

How AI Becomes Infrastructure: PDCVR, Agent Hierarchies, and Executable Workspaces

Published Jan 3, 2026

Feeling like AI adds chaos, not speed? In the past 14 days engineers and researchers have pushed AI down the stack into infrastructure: they’re building AI‐native operating models — PDCVR loops (Plan‐Do‐Check‐Verify‐Retrospect) using Claude Code with GLM‐4.7, folder‐level manifests, meta‐agents, and verification agents (Reddit/GitHub posts 2026‐01‐02–03). PDCVR enforces RED→GREEN TDD steps, offloads verification to .claude/agents, and feeds retrospects back into planning. Folder priors plus a meta‐agent cut typical 1–2‐day tasks from ~8 hours to ~2–3 hours (~20 min initial prompt, 2–3 short feedback loops, ~1 hour testing). DevScribe workspaces (verified 2026‐01‐03) host DBs, diagrams, API testing and offline execution. Teams are also standardizing data backfills and measuring an “alignment tax” from scope creep. The takeaway: don’t chase the fastest model — design the most robust AI‐native operating model for your org.

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