Software that stays where you put it.

Describe the job once. Run it over everything.

An agent asked to review forty files reads them one at a time, filling the conversation with material nobody will read and billing every file to an expensive model. Aion takes the mechanical part: one call per file, run at once, merged into a single answer.

• 98.6% kept out of context
• 1 answer, not forty
• 4 model providers

The wide pass runs on a cheap fast model and the merge on a capable one, results are cached against the exact prompt that produced them, and a spend ceiling stops a runaway job before it becomes a bill. It reads files and calls models — it cannot run shell commands.

{
  "prompt": "Review ${file.path} for SQL injection:\n${file.content}",
  "files":  ["src/**/*.py"],
  "merge":  "Summarize these findings, most severe first: ${results}"
}