Analytics engineering notes #

The main /analytics/ page is operator-first. This page keeps the lower-level transcript integrity counters and source notes out of the hero surface.

Session definitions #

• CLI transcript sessions: Claude and Codex transcript sessions with token events in the active reporting window.
• meta.db session events: rows in meta.sessions. This counts up and down events, not unique sessions.
• Resident agent lifetimes: meta.sessions rows where event = up. This is the closest durable proxy for tmux-resident agent starts.

Debug counters #

• Claude deduped replays: duplicate Claude usage envelopes removed by deduping on (session_id, message.id).
• JSON decode errors skipped: malformed transcript rows ignored during parsing.
• File count: number of transcript files scanned. Useful for audit and parser health, not for homepage meaning.
• Cross-session message id collisions: reused Claude message.id values across different sessions. Tracked for integrity, not treated as a billing event.

Cost note #

The dashboard models API-equivalent cost from token usage and published model pricing. It does not claim subscription billing truth for Claude Max or ChatGPT Pro seats.