Each tool has a clearly distinct purpose: chat_completion handles LLM interactions, get_balance checks token quota, and list_models shows available models. No overlap or ambiguity between them.

All three tool names follow a consistent verb_noun pattern in snake_case: chat_completion, get_balance, list_models. The naming is uniform and predictable.

With only 3 tools, the surface is minimal but appropriate for a straightforward LLM gateway. It covers the essential actions (use model, check balance, list models) without unnecessary bloat, though a few more (e.g., channel management) could be expected.

The tool set covers the core user-facing operations for an LLM gateway: chatting, checking balance, and discovering models. It lacks administrative features like managing channels, but for the apparent consumer-focused scope, these are reasonable gaps.