v8.3.0

[8.3.0] - 2026-11-08

• New: argsbarg gateway [alias=]bundle.mjs… serves several argsbarg MCP plugins from one Node process over stdio, saving one Node runtime per plugin per agent session. Tools are named <alias>_<tool>, instructions get one section per plugin, resources merge, and one shared mcp_resource_read tool reads any of them. Bundles join unchanged: app.run() registers with the gateway when it imports them. Plugins must be built with this version or later. See MCP gateway.

• New: errorReporter on the app spec, made with createErrorReporter({ dsn, env }), sends command failures (CLI, HTTP, MCP) to a Sentry-compatible collector such as Bugsink, with zero dependencies. Input errors, help, unknown routes, cancellations and deliberate process.exit calls are not reported. Apps can also call reportError / reportMessage directly. Each reporter holds its own DSN, so plugins sharing a gateway still report to their own projects. See Error reporting.

• Fix: argsbarg create writes the template's .gitignore when the installed package has none. npm never publishes .gitignore files, so projects created from the npm package had no .gitignore and their initial commit included node_modules.

• Fix: app.run() now waits for stdout and stderr to drain before exiting. When stdout was a pipe, a handler result over ~64 KB was cut off at the pipe buffer size because the process exited while the write was still queued.