This server has 6 tools with clear, verb-based names (authenticate_apic, fetch_apic_class, get_tenants, get_application_profiles, get_epgs, get_fabric_nodes). Most tools have reasonable descriptions and input parameters with types and descriptions. However, there are significant gaps: (1) Output schemas are not documented, responses are described as 'Dict[str, Any]' with no structure specification, forcing LLMs to infer result shape; (2) Error handling is present but generic, most tools return a dictionary with 'status' and 'message' fields, but these lack guidance for LLM recovery actions; (3) Tool descriptions are adequate (60 - 150 chars) but lack context on WHEN to use each tool vs. others (e.g., when to call fetch_apic_class vs. get_tenants); (4) Parameters like 'query_params' (in fetch_apic_class) accept free-form objects with no validation or enumeration, LLMs can pass invalid APIC query syntax; (5) No pagination or result limiting is documented, despite tools returning potentially large lists (get_tenants, get_epgs could return hundreds of objects); (6) Credentials are passed as function parameters in authenticate_apic, but the function ignores them and reads from .env instead, this is confusing API design that could lead to agent misuse. The per-tool average is 52.

• Document the output schema for every tool. Example: 'Returns {status: string, message: string, tenants: [{name: string, dn: string, descr: string}], count: int}'. Use TypedDict or pydantic models to declare return types explicitly.
• Add pagination to get_tenants, get_application_profiles, get_epgs, and fetch_apic_class. Accept limit (default 20, max 100) and offset parameters. Return total_count and next_offset or a continuation token. Update tool descriptions to state result limits.
• Fix authenticate_apic: either (a) remove the username/password parameters and document that .env is required, or (b) accept and use the parameters, storing them in the global _authenticator. Clarify the API contract in the description.
• Validate and escape filter parameters in get_application_profiles and get_epgs. Use parameterized query construction or a dedicated APIC filter builder library instead of string formatting. Example: use urllib.parse.quote() for tenant names in filter strings.
• Constrain query_params in fetch_apic_class. Add an enum or validation function listing valid APIC query keys: rsp-subtree, query-target-filter, rsp-prop-include, rsp-include, order-by, page, page-size. Reject invalid keys with a clear error.
• Enhance error messages with recovery guidance. Example: 'Not authenticated. Call authenticate_apic(apic_url, username, password) first.' For missing classes: 'Class 'fvTenant' not found. Available classes: fvBD, fvAp, fvAEPg, fabricNode.'
• Update tool descriptions to explain when to use each tool. Example for fetch_apic_class: 'Low-level tool for querying any APIC class by name. For common tasks, use get_tenants(), get_epgs(), or get_fabric_nodes() instead.' For get_tenants: 'High-level convenience tool. Returns all tenants without filtering. For fine-grained queries, use fetch_apic_class().'

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

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