MCP tool call parameters render in narrow column, truncating long text

Problem

When MCP tools are called with long parameter values (e.g., thought in a sequential thinking tool), the parameter content renders in a narrow column (~30 chars wide) to the right of the tool name label. This makes long-form text unreadable.

Example: A sequential_think MCP tool call with a multi-sentence thought parameter:

● plugin:composure:composure-cortex – sequential_think (MCP)(session_id:
                                "e1bb2967-7c83-448b-bb7
                                2-df28159426de",
                                thought: "## Product
                                Planner Inline
                                Issue\n\nThe user
                                reports that '/design-f
                                orge:product-planner'
                                was updated to use

The tool name plugin:composure:composure-cortex – sequential_think (MCP) consumes most of the terminal width, leaving parameters squeezed into a ~30 character column.

Comparison

Other tool calls render well — Bash, Read, Edit, TaskCreate all display their parameters in full width below the tool name. The issue is specific to MCP tool calls where parameters are displayed inline next to the label.

Expected behavior

MCP tool call parameters should render below the tool label at full terminal width, similar to how Bash command parameters are displayed:

● plugin:composure:composure-cortex – sequential_think (MCP)
  session_id: "e1bb2967-7c83-448b-bb72-df28159426de"
  thought: "## Product Planner Inline Issue

  The user reports that '/design-forge:product-planner' was updated to use..."
  … +15 lines (ctrl+o to expand)

Or alternatively, collapse long parameters with the existing ctrl+o to expand pattern already used for Bash output.

Environment

• Claude Code CLI (terminal)
• macOS
• Affects all MCP server tool calls with long parameters

🤖 Generated with Claude Code