Court (lilting.ch)

A significant bug has emerged in the Claude Code tool (part of the Opus 4.8 family), causing it to stall during tool usage by printing the token "court" or "<invoke name=...>" instead of executing commands. Users have reported that this issue is prevalent in long sessions and leads to tool calls not being executed, with multiple reports indicating that the problem is not isolated to a specific build, affecting both Opus 4.7 and 4.8 models. The community is actively discussing workarounds, such as starting fresh sessions and using Markdown files to transfer data, as maintaining long sessions increases the likelihood of encountering this stall. This issue's significance lies in its implications for workflow efficiency and reliability in AI-assisted coding environments. As these models are designed for continuous interaction, the presence of "court" disrupts expected outputs, leading to halted processes that can frustrate users who rely on swift execution. Furthermore, it hints at deeper serialization issues within the tool-call generation process, suggesting that improvements may be needed to enhance stability in high-context scenarios. Currently, developers and users are urged to minimize session length and keep tool calls concise to avoid invoking this problem.