This project adapts dsh-llm-antigravity-acp from:
https://github.com/lili-luo/dsh-plugin-bundle
Upstream snapshot: f0499138aa4f39531f258bcbdcebfeecbf17fbbc
Copyright (c) 2026 lili-luo. MIT license, reproduced in LICENSE.

The ACP runtime, JSON-RPC transport, MCP bridge, history projection, model
catalog, preflight, quota reader, and runtime test fixtures derive
from that project. Pi entry point, host process integration, local protocol
contracts and Pi stream translation are adaptations in this repository.
Internal bridge identifiers are renamed to pi; upstream licensing and attribution are retained.