claude-code - 💡(How to fix) Fix [MODEL] Opus 4.6/4.7 gives error when starting session with SKILL /session-start [3 comments, 2 participants]

⎿ API Error: Extra usage is required for 1M context · run /extra-usage to enable, or /model to switch to standard context

TL;DR

The issue can likely be resolved by running the /extra-usage command to enable extra usage for the 1M context or switching to the standard context using the /model command.

Guidance

• The error message suggests that the issue is related to the context size, which is set to 1M, but the loaded context is only around 18KB, indicating a potential configuration or settings issue.
• Try running the /extra-usage command to enable extra usage for the 1M context, as suggested by the error message.
• Alternatively, switch to the standard context using the /model command to see if the issue persists.
• Verify that the Claude Max subscription limits have not been reached, despite the report stating that the limit has not been reached, to rule out any account-related issues.

Notes

The issue seems to be specific to the Opus model, as switching to Sonnet resolves the issue, which may indicate a model-specific configuration or bug.

Recommendation

Apply workaround: Run the /extra-usage command to enable extra usage for the 1M context, as this is a straightforward solution that directly addresses the error message.