Setup pstack

Configure host-neutral uni-pstack defaults. Do not write Cursor rule files or rely on Cursor Task model slugs.

Defaults

• Codex-hosted pstack: use native Codex subagents with gpt-5.6-sol, task-appropriate reasoning, and the supported fast or priority tier.
• Claude Code-hosted pstack: delegate pstack subagent work to Codex CLI workers with gpt-5.6-sol, task-appropriate reasoning, and fast when the local Codex CLI accepts it.
• Automatic routing uses low reasoning for routine implementation and exploration. It uses medium for judgment, synthesis, high-risk work, or an unknown role. gpt-5.6-sol is capped at medium; never request high or xhigh, and the launcher clamps them down.
• Claude-only fallback policy is host-specific and lives in the installed pstack delegation reference. Do not apply Claude-only model rules inside Codex-hosted runs.

Configuration file

Use ${XDG_CONFIG_HOME:-$HOME/.config}/uni-pstack/models.env as the portable override file. It is a shell env file for humans and launch scripts, not a required runtime dependency.

Create the directory if missing and write only assignments the host can honor: