What is pi-shift-router?

A per-turn model router for the Pi coding agent: a small judge decides, for each message, whether the cheap or the strong model tier should answer, with multi-model failover and task-level orchestration.

How does Jev relate to pi-shift-router?

It offers an optional decision-model judge (Jev) that answers with a calibrated probability instead of prose, per the repository description; the repo topics explicitly include jev and typesafe.

Is pi-shift-router a fork of Pi?

No. It is a Pi coding-agent extension: the SEO metadata block lists it as a pi-coding-agent extension / model router, and @earendil-works/pi-tui is only a peerDependency provided by the pi host.

What runtime does pi-shift-router need?

Node.js >= 24 per the repository metadata, published as the npm package pi-shift-router with no runtime dependencies. The digest excerpt does not include an install command.

Can I use it without Jev?

Yes: Jev is the optional decision-model judge. The router still routes turns between cheap and strong tiers using its small judge and supports multi-model failover on its own.

How mature is pi-shift-router?

The metadata block lists first-published v0.4.0 and latest v1.7.2 with a last-updated stamp of 2026-10, and the repository was created 2026-07-23 and pushed 2026-10-15 per the digest.

Does it document cost savings?

The description frames the router around cost optimization, and topics include cost-optimization, but the digest excerpt contains no measured savings figures or benchmarks, so none are claimed here.

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Pi Shift Router

A per-turn model router for the Pi coding agent: a small judge picks the cheap or the strong tier for each message, with multi-model failover and task-level orchestration, plus an optional Jev judge that answers with a calibrated probability.

See highlights Open github.com

Stars: 13
Language: TypeScript
License: MIT
Reading time: 2 min
Published by: Community
Author: green-dalii
Last verified: Oct 2026

green-dalii/pi-shift-router

User repository on GitHub

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Per-turn model routing for the Pi coding agent: a small judge picks the cheap or the strong tier for each message, with multi-model failover, task-level orchestration, and an optional decision-model judge (Jev) that answers with a calibrated probability instead of prose.

Forks: 3
Last pushed: Updated Oct 2026

Repo stats from the GitHub API, cached Oct 2026.Homepage

Tagscommunity github router pi-agent typescript

Works forJev for Routing Jev for Decision gating

Used inJev for Software & DevTools

Languages: TypeScript
Platforms: CLI
Capabilities: Open sourceRuns locally

Highlights

Per-turn model routing: a small judge picks the cheap or strong tier for each message.
Optional Jev judge: a decision model that answers with a calibrated probability instead of prose.
Multi-model failover and task-level orchestration across routed turns.
No runtime dependencies; @earendil-works/pi-tui is a peerDependency supplied by the pi host.
Repo topics include jev, typesafe, decision-model, llm-router, model-routing and pi-extension; latest release v1.7.2.

Watch out

README and GitHub metadata reviewed 2026-10-17. The digest excerpt is mostly SEO metadata, so install steps, configuration options and any cost-savings measurements are not evidenced here; runtime requires Node.js >= 24.

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Pi Shift Router

Highlights

Questions about this entry

What is pi-shift-router?

How does Jev relate to pi-shift-router?

Is pi-shift-router a fork of Pi?

What runtime does pi-shift-router need?

Can I use it without Jev?

How mature is pi-shift-router?

Does it document cost savings?

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From the Jev guides

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