Every AI coding tool waits for you to tell it what to do. sustn doesn't. It scans your codebase, finds what needs fixing, and does the work — you just review the PR.
There are two ways to work with AI agents.
Reactive: You open a terminal. You describe a task. You wait. You review. You do it again. The agent is powerful but inert — a tool that only moves when you push it. When you're not prompting, nothing happens. Your subscription tokens expire unused. The work piles up.
Proactive: The agent understands your codebase. It maintains a living backlog of what needs doing. It picks up work when resources are available and delivers results you can approve or discard. You stay in control, but you're no longer the bottleneck.
Every AI coding tool today is reactive. sustn isn't.
Add your repositories and sustn runs a deep scan using Claude Code or Codex. It finds dead code, missing tests, doc drift, security gaps, and tech debt — then ranks everything by impact.
Your backlog appears as a task list you actually control. Drag tasks to reprioritize. Click into any task to see exactly what the agent found and why it matters. Add your own notes or constraints before work begins.
sustn monitors your remaining Claude Code or Codex subscription budget and picks up tasks when tokens are available. It works through your backlog continuously — no prompts, no babysitting, no wasted tokens.
Every completed task lands as a branch. Review the changes, then create a PR with one click — or configure sustn to open PRs automatically. Nothing touches main without your say-so.
sustn runs on the tools you already have. No extra infrastructure required.
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