Does the description clearly state what the tool does and how it differs from similar tools?
Description explicitly enumerates the exact fields returned (plan tier, trial state, connected account count, scheduled post counts, next three upcoming posts), making the tool's purpose unambiguous. The name 'get_account_summary' directly aligns with the description, and the content distinguishes it from siblings like billing or analytics.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.