https://juanpabloaj.com/2026/04/16/a-lightweight-way-to-make-agents-talk-without-paying-for-api-usage/
Article
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Proposes using local files or stdin/stdout as agent communication channels.
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Avoids API costs by keeping inter-agent messaging off the LLM API.
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Lightweight approach targeting developers running multiple local agents.
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Focuses on coordination without a heavyweight orchestration framework.
Discussion
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Claude Code’s built-in Agent Teams (file-based inboxes) already does this natively.
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Others mention tmux send_keys and paste buffers as similar low-tech solutions.
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Roborev.io from Wes McKinney cited as a related project worth comparing.
Discuss on HN