Note
May 29, 2026
1 min read
From Chat History to Execution History
By Cristiano Pierry
A searchable record of prompts and tool activity turns chat history into something closer to an execution log for delegated work.
Last week I built a small Codex log app for myself, and it has become one of the tools I use most often in my AI workflow.
Several times a day, I use it to review the prompts I issued across projects, when I sent them, how Codex responded, and which tools it used. The view is simple, which is precisely why I miss it in the main product.
When I delegate work to an agent, the prompt records more than a conversation. It captures what I intended the system to do. The response and tool history show what actually happened. The normal chat interface is useful while one thread is active, but it is harder to use when I need to reconstruct a decision across days or projects.
Prompt history is becoming an execution log.
I would like this to be a default Codex view rather than a separate power-user tool: a clean, searchable record that lets me compare the instruction with the work the agent performed.
I open-sourced the app here: Codex Log Viewer.
This writing reflects my personal perspectives on product management, AI, and content discovery. It does not represent the official position of my employer or any affiliated organization.