14 tools with clear naming (verb_noun pattern) and basic descriptions. However, critical gaps: parameter descriptions are minimal or absent (most params lack detail on format/constraints), output schemas are undocumented, and error handling is not visible in the provided code. The gateway_* admin tools lack descriptions entirely in the source. Tool composition is reasonable (discovery → schema → execute pattern), but parameter validation rules and recovery guidance are missing. Baseline: 194 chars avg description; most tools here are 50-100 chars, below median.

• Add detailed descriptions to all admin tool parameters. For 'credentials' dict, document required keys per plugin type (e.g., 'For Slack: {token, signing_secret}; for GitHub: {token, org}').
• Document output schemas for all tools. Specify response fields, types, and pagination (e.g., 'Returns {plugins: [{name, accounts: [string], tool_count: int}], total: int}').
• Convert 'access_level' and similar enum parameters to formal JSON Schema enums. Add validation error messages like 'Invalid access_level: got "superuser", must be one of: read, write, admin'.
• Add error handling guidance to tool descriptions. E.g., 'call_tool: If tool not found, returns 404 with available tool names. If params invalid, returns 400 with schema link.'
• Replace 'params_json' string parameter with a structured object. Accept {key: value} pairs directly instead of requiring JSON serialization, reducing LLM errors.