pi-mono/apps/p2/plugins/terminals/worker.ts
Mario Zechner 2a32a605a9
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feat(p2): Gondolin sandbox environments
A sandbox is a new env type (`type: "gondolin"`): a long-lived Gondolin micro-VM on an SSH environment, with
listed host folders and an HTTP(S) host allowlist. The worker reaches it over SSH to the host, where p2's launcher
(plugins/envs/sandbox: native, or Docker when the host's Node/QEMU are too old) runs pi-env's daemon inside the VM,
so tools, workspace, terminals, uploads and MCP work unchanged. Names outside the allowlist are refused before
the host resolves them.

Conversations working in a sandbox cannot leave it: location tools, subagent spawn/configure, AgentLocations.move,
the terminal tool, and one-shot agents (which now inherit their caller's own location) all keep them there; only the
owner's Relocate moves a session out, after a confirmation. conversationConfinement() exposes it to plugins.

Owner-only management in the Envs sheet: sandboxes listed under their host, host test reports sandbox support,
create/edit/start/stop/restart/test, lock icons in the top bar and sidebar. Tests in test/p2/sandboxes.test.ts
(real VM cases with P2_TEST_GONDOLIN=1) and ui-sandboxes.test.ts; docs in docs/remote-envs.md.
2026-11-05 23:35:09 +00:00

59 lines
3 KiB
TypeScript

// The terminals plugin's worker facet: the agent's `terminal` tool, calling the server's `AgentTerminals` as this
// session's worker, at the calling conversation's location. It follows the code mode switch as MCP tools do: for
// scripts while code mode is on, loaded with `tool_search` while it is off.
import type { Extension } from "@earendil-works/pi-durable";
import { type Context, type Ctx, contribute, defineFacet, expectVariant } from "@p2/app/v1";
import { ExtensionSwitches } from "@p2/app/v1/node";
import { Extensions, harnessOf, workerOf } from "@p2/app/v1/worker";
import { AgentTerminals } from "./contract.ts";
import {
createTerminalExtension,
TERMINAL_EXTENSION,
type TerminalBackend,
type TerminalCaller,
type TerminalReach,
} from "./tool.ts";
/** The code mode plugin's extension: its switch is on while the `codemode` setting is, absent without the plugin. */
const CODEMODE_EXTENSION = "codemode";
export default defineFacet((host) => {
contribute(host, "p2.terminal-tools", (self) => {
const harness = harnessOf(self);
const worker = workerOf(self);
const terminals = async (ctx: Ctx) => expectVariant(await ctx.get(AgentTerminals, {}), "worker");
/** One call of the server's object, as this worker, cancelled with `context`. */
const via = <T>(
call: (server: Awaited<ReturnType<typeof terminals>>, ctx: Ctx) => Promise<T>,
context: Context,
): Promise<T> => worker().root(async (ctx) => call(await terminals(ctx), ctx), context);
const backend: TerminalBackend = {
list: async (context) => (await via((server, ctx) => server.list({}, ctx), context)).windows,
open: (args, context) => via((server, ctx) => server.open(args, ctx), context),
send: (args, context) => via((server, ctx) => server.send(args, ctx), context),
cursor: (target, context) => via((server, ctx) => server.cursor({ target }, ctx), context),
read: (args, context) => via((server, ctx) => server.read(args, ctx), context),
capture: (args, context) => via((server, ctx) => server.capture(args, ctx), context),
close: (args, context) => via((server, ctx) => server.close(args, ctx), context),
};
const caller: TerminalCaller = async (api, context) => {
const here = await harness().environments.locate(api.conversationId, context, api);
const sandbox = await harness().environments.sandbox(here.env);
return sandbox === undefined ? { here } : { here, sandbox };
};
const offer = (reach: TerminalReach) => ({
[TERMINAL_EXTENSION]: createTerminalExtension(reach, backend, caller),
});
let offered: TerminalReach = "codemode";
const extension = self.writable<Readonly<Record<string, Extension>>>(offer(offered));
self.contribute(Extensions, extension);
// Code mode switched off or not loaded: scripts cannot reach the tool, so `tool_search` loads it.
self.on(self.registry(ExtensionSwitches), ({ value }) => {
const reach: TerminalReach = value.get(CODEMODE_EXTENSION) === true ? "codemode" : "tool_search";
if (reach === offered) return;
offered = reach;
extension.set(offer(reach));
});
});
});