tools-usage

A side pane listing every tool the session used, grouped by kind, with calls and token consumption.

◆ Tools                       42 calls · ≈118k tok
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■ builtin 61k  ■ mcp 38k  ■ skill 12k  ■ hook 7k
Sort tokens calls name
────────────────────────────────────────────────
● Read                           builtin  14×   31k
  ▰▰▰▰▰▰▰▰▰▰                       ↑1.2k ↓30k ⌂2.1k
● search_code github                 mcp   6×   22k
  ▰▰▰▰▰▰▰▱▱▱                        ↑0.4k ↓21k ⌂0.6k

| Kind | What it counts | | --- | --- | | builtin | Claude Code's own tools (Bash, Read, Edit, …) | | mcp | mcp__<server>__<tool>, labelled with the server | | skill | Each skill invoked through the Skill tool | | agent | Each subagent type launched through the Agent tool | | plugin | Tools a plugin registered | | hook | Context that settings hooks injected into the conversation, per hook event |

• ↑ the arguments the model wrote (output tokens)
• ↓ the result the model read back (input tokens)
• ⌂ the tool's description, which is sent with every request

Token counts are estimates (about 4 characters per token). Subagents' tool calls are included.

Commands: /tools-usage opens the pane, /tools-usage reset clears the counts.