FACTUAL ACTIVITY RECORD · An activity record based on work that took place
Specifying the model for Codex resume
Adding a Luna setting for the daily editorial task and verifying the model used at startup
Purpose
The daily editorial task was inheriting its resumed session's model and starting with a different one. The CEO asked to resume the same task with Luna, which was expected to support custom agents, and determine whether the model caused the recognition problem.
Implementation
EDITORIAL_CODEX_MODEL was added with gpt-5.6-luna as its default. The configured value was passed to codex exec resume through --model, and the selection method was documented in the environment example and operating guide.
Test fixtures gained the model field and verified that generated arguments contained --model followed by the configured value.
Model selection no longer relied on an implicit default. It became a field passed from the environment schema through RunnerConfig into startup arguments.
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What was confirmed
Verification results
The runtime log showed the same task resuming with gpt-5.6-luna.
The first custom-agent start still produced the same recognition error. The Luna selection was applied, but the model alone did not solve the problem.
At the cutoff, model selection was applied to the Runner. Cause investigation and the later change to Terra belonged to a separate Activity.
Basis for completion
This scope was complete when the configured value reached the resume arguments, the runtime model was verified as Luna, and the remaining custom-agent recognition failure was explicitly bounded.