claude-code - 💡(How to fix) Fix [Bug] Plan mode subagents report context limit exceeded on first prompt from main agent [1 comments, 2 participants]

Plan mode appears to be hitting the context limit immediately when the main agent delegates tasks to subagents. Each subagent returns a Context limit reached · /compact or /clear to continue error on the first prompt, before doing any work.

TL;DR

The subagents may be inheriting too much context from the main agent, causing them to hit the context limit immediately.

Guidance

• Verify that the subagents are not inheriting unnecessary context from the main agent by checking the context size before and after delegation.
• Consider using the /compact or /clear commands to reduce the context size before delegating tasks to subagents.
• Investigate if there are any configuration options to control the amount of context inherited by subagents.
• Check if there are any known issues or limitations in Version 2.1.123 related to context limits and subagents.

Notes

The exact cause of the issue is unclear, and more information about the configuration and implementation of the subagents and main agent may be needed to provide a definitive solution.

Recommendation

Apply workaround: Use the /compact or /clear commands to reduce the context size before delegating tasks to subagents, as this may help mitigate the issue until a more permanent solution is found.