Agree. To reduce costs:

1. Precompute frequently used knowledge and surface early. For example repository structure, os information, system time.

2. Anticipate next tool calls. If a match is not found while editing, instead of simply failing, return closest matching snippet. If read file tool gets a directory, return directory contents.

3. Parallel tool calls. Claude needs either a batch tool or special scaffolding to promote parallel tool calls. Single tool call per turn is very expensive.

Are there any other such general ideas?