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I metered my own coding agent for a week: 97% of the tokens went to re-reading

This story is from 2026-10-26. It is preserved in the archive; the latest stories are on the live feed.

An agent turn is not a message. It is the whole conversation so far, re-sent. I spent a week logging per-turn usage objects off the OpenAI-compatible endpoint my agent talks to, and the thing that surprised me was not the total — it was the ratio. Prompt tokens were 97% of everything the agent cons…

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  1. 2026-10-26 20:18 · DEV Community — AI
    I metered my own coding agent for a week: 97% of the tokens went to re-reading

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