A Boston-based startup has released a desktop tool designed to wrangle the growing problem of managing several AI coding assistants at once, as developers increasingly rely on multiple automated agents to write and debug software.
Rindler, which went through Y Combinator's accelerator program, launched Maxxwell this week—a free IDE that introduces a "conductor" agent to supervise other AI coding sessions running simultaneously. The application, now available for macOS, Linux, and Windows, attempts to solve what the company describes as the "babysitting problem": the drift, context overload, and constant interruptions that plague developers juggling multiple agent workflows.
Rather than forcing developers to toggle between windows and guess which assistant has stalled or gone off track, Maxxwell consolidates sessions into a single interface. Each agent gets tagged as working, idle, or waiting for input. The conductor, acting as overseer, monitors progress across all lanes and flags what succeeded, what requires attention, and what quietly stopped producing useful output.
The architecture is straightforward. Maxxwell runs each agent as a live session using installed runtimes—Claude Code or Codex CLI, for instance. According to product documentation, the conductor nudges any lane that's been silent for 15 minutes and generates a summary report when the developer checks back in. Everything runs locally; no Rindler account or cloud control plane is required for standard use. Source code, prompts, and session logs flow to the model provider, the company notes in its privacy policy, but not to Rindler itself.
The product arrived in rapid-iteration mode. GitHub records show four releases within a single week in late August, culminating in version 0.1.21. Platform artifacts include a 175 MB macOS arm64 DMG and a 190 MB Windows x64 ZIP. The documentation acknowledges that GUI launches remain "UNVERIFIED" across all platforms in the current build. A 14 MB CLI installer is available via curl, and the product site emphasizes that features like automatically auditing goals, correcting drift, and restarting bloated sessions represent "product direction, not claims about the current downloadable release."
Arthur De Los Santos, Rindler's CTO, framed the motivation in a LinkedIn post reflecting on trust erosion with AI agents. "The agent had done enough right to make the wrong answer believable," he wrote. "That is the trust problem we are building Rindler to solve." De Los Santos and CEO Michael Serrano, both MIT computer science graduates who conducted research at CSAIL, founded the company in 2025. Rindler's core product turns third-party websites into deterministic APIs for agents, separate from Maxxwell.
Maxxwell is entering a crowded field. At least seven other desktop tools now offer multi-agent orchestration for coding workflows. Band markets itself as an "agent-first IDE." StarkIDE runs on a VS Code engine-based desktop workshop. Hyperlane IDE similarly handles multiple agents in parallel. Herd pitches itself as capable of orchestrating dozens of agents simultaneously, while Admiral IDE, Juggler, and Orbit provide comparable multi-agent interfaces. Open-source alternatives include Barnaby and agent-session-manager-desktop, a GUI session manager for Claude, Gemini, Aider, and Codex.
The market backdrop suggests demand is real, if noisy. GitHub's Octoverse report indicated that coding agents generated more than one million pull requests over a four-month span last year. Fortune reported earlier this year that Codex surpassed 1.6 million weekly active users—triple its count from the start of the year.
Maxxwell remains free for individual developers indefinitely, Rindler said, with team pricing plans expected later. No figures for those plans have been disclosed. The app currently supports sessions driven by installed Claude Code or Codex CLIs, with runtime selection handled via a command-line interface and a provider-API path for custom setups. Rindler's Y Combinator profile mentions Cursor Agent support, though current Maxxwell documentation does not yet reference it.
The tool is available for download at maxxwell.dev, with documentation and release notes hosted on docs.maxxwell.dev and a public releases repository on GitHub.
