Make Operations Idempotent

Uni-pstack Runtime Adapter

This is a portable port of upstream Cursor pstack. Apply these overrides before following the original workflow:

• Cursor Task or subagent calls mean Codex delegation. In Codex, use native Codex subagents. In Claude Code, launch Codex CLI workers using the installed pstack skill spawn-codex-worker script or direct codex exec.
• Replace upstream Composer, Claude Opus, and other panel defaults with Codex gpt-5.6-sol and task-appropriate reasoning: medium for routine implementation and exploration; high for judgment, synthesis, and high-risk work. Use the supported fast or priority tier.
• Claude-only fallback model policy lives in the installed pstack delegation reference. Do not infer Claude model choices from this skill.
• Cursor-only commands such as loop, babysit, deslop, control-ui, and control-cli are conceptual cues. Use the host terminal, browser, review, subagent, and git tools directly.
• Cursor paths become host-appropriate project or user configuration paths. Preserve the workflow intent, not Cursor-specific storage.

Design operations so they converge to the correct state regardless of how many times they run or where they start from. Every state-mutating operation should answer: "What happens if this runs twice? What happens if the previous run crashed halfway?"

Why: Commands, lifecycle operations, and processing loops run where crashes, restarts, and retries are normal. If partial state changes the next run's outcome, every restart becomes a debugging session.