Single tool 'scan' has a well-structured input schema with 6 parameters, all typed and described. However, the tool description (89 chars) falls short of the 10 - 1024 char baseline and lacks critical context about WHEN to use it and WHAT it returns. No output schema is documented, LLMs cannot plan downstream steps. Parameter descriptions are adequate but generic (e.g., 'Active Directory host inventory (CSV or JSON)' lacks format constraints or examples of valid input). The tool does not declare whether it modifies state, making idempotency unclear. No error handling guidance is visible in the source. Overall, the schema is present but descriptions are thin and output is undocumented.

• Expand tool description to 150 - 250 chars. Example: 'Reconcile Active Directory, MDM, and EDR device inventories to identify endpoints with missing, stale, or degraded EDR protection. Returns a list of coverage gaps with severity levels and remediation hints. Call this first to assess security posture across your fleet.'
• Document the output schema explicitly. Specify: findings (array of {id, severity, endpoint, reason}), coverage_score (0 - 100), total_endpoints, protected_endpoints, gaps_by_severity (object). Include example JSON.
• Add format constraints to inventory parameters. Example: 'Active Directory host inventory as CSV (columns: hostname, os, last_seen) or JSON array of {hostname, os, last_seen}. Max 100K rows. Encoding: UTF-8.'
• Add error handling examples in the description or a separate 'Errors' section. Example: 'If CSV is malformed, returns {error: "Invalid CSV format", expected_columns: ["hostname", "os"], received_columns: [...]}. Provide a valid file and retry.'
• Declare idempotency and read-only status. Add to description: 'This tool is read-only and idempotent, it does not modify inventories or create side effects. Safe to call multiple times with the same inputs.'