Cost per Conversation

cost-report and cost-optimize aggregate by agent and model. This skill aggregates by conversation (session) — a different lens that surfaces which conversations cost the most. Useful for retrospectives ("which sessions ran long on Opus?") and for evaluating whether a given project's session pattern is sustainable.

When to use

• After multiple sessions, to see total spend per conversation.
• Before scoping a long session, to understand typical cost-per-conversation.
• For per-project rollups via CONV_NAMESPACE=cost-tracking-<project>.

Steps

1. Run the script from anywhere:

   node plugins/ruflo-cost-tracker/scripts/conversation.mjs