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feat(pi): finish subagent runtime surfaces

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alexion
2026-08-01 14:44:07 -04:00
parent 3977ed6822
commit 007ba81c02
7 changed files with 296 additions and 46 deletions
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10
modules/agents/pi/extensions/subagents/runner.ts
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@@ -156,7 +156,7 @@ class RpcChildHandle implements ChildHandle {
export class SubprocessRpcRunner implements ChildRunner {
async start(id: string, request: SpawnRequest, cwd: string, events: RunnerEvents): Promise<ChildHandle> {
const args = [process.argv[1], "--mode", "rpc", "--no-extensions", "--name", `subagent ${id}`, ...toolArgs(request), ...modelArgs(request)];
const args = [process.argv[1], "--mode", "rpc", "--no-extensions", "--name", `subagent ${id}`, ...contextArgs(request), ...toolArgs(request), ...modelArgs(request)];
const child = spawn(process.execPath, args, {
cwd,
env: childEnvironment(),
@@ -174,6 +174,11 @@ function delay(ms: number): Promise<void> {
return new Promise((resolve) => setTimeout(resolve, ms));
}
function contextArgs(request: SpawnRequest): string[] {
if (request.context !== "fork" || !request.parentSessionFile) return [];
return ["--fork", request.parentSessionFile];
}
function toolArgs(request: SpawnRequest): string[] {
const activeTools = request.toolProfile?.activeTools;
if (activeTools === undefined || activeTools === null) return [];
@@ -200,5 +205,8 @@ function childEnvironment(): NodeJS.ProcessEnv {
function independentPrompt(request: SpawnRequest): string {
const base = request.agentBody ? `${request.agentBody}\n\n` : "";
if (request.context === "fork") {
return `${base}You are running as a delegated subagent in fork context.\nUse the inherited parent session context, then return a concise final answer for the parent agent.\n\nTask:\n${request.prompt}`;
}
return `${base}You are running as a delegated subagent in independent context.\nDo not assume access to the parent conversation transcript.\nReturn a concise final answer for the parent agent.\n\nTask:\n${request.prompt}`;
}