Pi

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Pi is an AI agent toolkit offering a unified LLM API, an agent loop, a TUI and a coding agent CLI. Recent coverage centers on the Pi 1.0 release with MCP support on by default, and the team's move of MCP natively into the core; Figma limited MCP access to whitelisted clients, excluding Pi, while aweb added wake-up integrations for Pi. NVIDIA also released SoL-Pi, an optional extension with four mechanisms to cut token and inference costs.

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Open-source book Harness Engineering 101 released

The open-source book Harness Engineering 101 argues the LLM is the brain and the harness is the body, since stateless LLM APIs require a program to build and protect the conversation array. Its 16 chapters grow a ~300-line Python toy agent, with patterns fully developed in open-source coding agent One Code.

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pi

AI agent toolkit with unified LLM API, agent loop, TUI and coding agent CLI.

▲ 408 · GitHub Trending ·

pi

Minimal extensible AI agent toolkit with unified LLM API, TUI, and coding CLI

▲ 408 · GitHub Trending ·

pi

AI agent toolkit with unified LLM API, agent loop, TUI, and coding agent CLI.

▲ 298 · GitHub Trending ·

Pi.dev Brings MCP Support into Core

The Pi.dev team said it previously stated Pi did not support MCP, but now upgraded Pi natively supports MCP. The team said MCP itself has changed, and the changes needed for MCP integration also make it easier to use Jev within Pi, so it was moved into the core rather than kept as an extension. The team still sees MCP as hard to compose.

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pi

Agent toolkit with unified LLM API and agent runtime

▲ 458 · GitHub Trending ·

SoL-Pi: Four efficiency extensions for Pi

NVIDIA released SoL‑Pi, a standalone, opt‑in extension for Pi that adds four mechanisms (Action Fusion, ObservationPack, Evidence‑Preserving Reducer, Online Context Compact) to cut repeated model turns, context replay, oversized observations, and long‑log reads, lowering token and inference cost while preserving evidence.

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