This server has a single tool (list_accounts) with critical definition gaps. The tool description is truncated mid-sentence ('This is typically the first command you'), input schema is empty ({}), and there is no documented output schema. The implementation shows OAuth/service account credential handling but does not expose input parameters or constraints to the LLM. With only one tool and no parameters documented, the server fails to meet baseline quality standards for LLM-driven tool discovery and use.

• Expand the tool description to at least 50-150 characters, completing the truncated sentence and explaining: (1) what the tool returns, (2) when the LLM should call it (e.g., 'Call this first to discover available Google Ads accounts'), (3) any prerequisites (e.g., valid credentials must be configured).
• Add input parameters to list_accounts. Examples: 'filter' (optional, to search by account name), 'limit' (optional, 1-100, default 20) for pagination, 'include_disabled' (optional boolean) to include paused accounts. Include descriptions for each parameter.
• Document the output schema. Example: 'Returns a list of account objects, each containing: account_id (string), account_name (string), currency_code (string), timezone (string), customer_descriptive_name (string). Example: [{"account_id": "1234567890", "account_name": "My Campaign", ...}]'
• Add support for pagination in the response: include 'total_accounts' count and 'next_cursor' (if applicable) to enable the LLM to fetch additional results without re-running the same query.
• Implement error handling. Document error cases: (1) Missing credentials or GOOGLE_ADS_CREDENTIALS_PATH not set → 'Set GOOGLE_ADS_CREDENTIALS_PATH environment variable', (2) Invalid credentials → 'Check GOOGLE_ADS_DEVELOPER_TOKEN and GOOGLE_ADS_LOGIN_CUSTOMER_ID', (3) Rate limited → 'Retry after 60 seconds', (4) API error → Return 'Available accounts' list if accessible.
• Expand the server with additional tools: 'list_campaigns' (filter by account_id), 'list_ad_groups' (filter by campaign_id), 'list_keywords' (filter by ad_group_id), 'get_account_metrics' (retrieve performance data). Each tool should follow the same parameter description and output schema standards.

Inferred effective spec: <=2025-11-25.

• Relies on Logging (deprecated) - log to stderr or use OpenTelemetry