Developer observability
Agent Watchtower
A local observer for coding agents. Bring sessions, token use, and API-price estimates into one place.
Explore the source
The problem
Working across coding assistants makes it difficult to understand where time and tokens go.
The approach
Agent Watchtower collects hook events and session logs from Claude Code, Codex, and Hermes into a local SQLite database, with a dashboard for exploring the activity.
My work
Event capture, session normalization, local storage, and dashboard presentation.
A design lesson
Observability should explain its measurements. Estimated API-price cost and active hours need context; they are not the same as a subscription bill or a timesheet.
This is a project overview, not a production-readiness claim. The repository is the source for implementation details and current progress. The image above comes from the project’s GitHub repository.