What's wrong with this entry?
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What
Subagents using Opus 4.6 now automatically use the 1M context window when the feature is available, matching the behavior already offered in main conversation model selection.
Details
- When 1M context is available and the resolved subagent model is Opus 4.6, the
[1m]suffix is automatically appended - Applied in both the explicit model override and default model code paths of subagent model resolution
- Does not apply if the model string already includes
[1m]
Evidence
Auto-upgrade function nc4 (search for "opus-4-6" near "[1m]") applied in subagent model resolution function Eh6
Strings lifted out of the shipped bundle, so the claim above can be checked against them.