Nemotron-3-Ultra tops free agent stack, Zenn author says

The writeup is less a product announcement than a field report from someone running agents daily without paying for API access. The stack is layered by role: VS Code extensions such as Antigravity, GitHub Copilot and Codex handle inline work; the terminal multiplexer Herdr monitors several agents at once; and Obsidian's Claudian plugin auto-detects installed CLIs so the note vault itself becomes a working directory.

The friction the author describes is specific to free tiers rather than to the models. Autonomous agents resend large system prompts and tool schemas every turn and keep reading project files, so a few thousand tokens of ordinary chat can become hundreds of thousands. On shared free endpoints, that consumption collides with per-day and per-minute caps — the author's complaint is that work halts right when it is going well.

Among the tools mentioned, two stand out as open items. The Claudian plugin, credited to Yishen Tu at v2.3.16, supports Claude Code, Codex CLI, Grok Build, OpenCode and Pi; the author notes OpenCode installed under WSL is not auto-detected from Windows Obsidian. Pi, credited to Mario Zechner, is described as restricted to four basic tools — read, write, edit and bash — and the author says testing is still underway.