This server has significant structural and documentation gaps. All three tools have descriptions in French that exceed recommended length (194 char baseline; these average ~250 chars). Tool names are action verbs (call_with_message, launch_app, ajouter_app) but lack clarity for non-French speakers and tool composition. Input schemas ARE present with typed parameters, but descriptions within schemas are sparse or missing. Two tools (call_with_message, ajouter_app) require confirmation flags but lack clear error handling guidance for denial scenarios. The server's reliance on a YAML config file (config.yaml) for state introduces coupling and statefulness concerns. No tool returns documented output schemas, agents cannot know what fields to expect, breaking downstream tool chaining. The third tool (launch_app) lacks enum constraints for application names, inviting hallucinated values. Overall, the server resembles a hobby project rather than production-grade tooling.

• Document output schemas for all three tools. Example: call_with_message should return {success: bool, transcript: string, duration_seconds: number, call_id: string}. launch_app should return {success: bool, process_id: number, error: string?}. ajouter_app should return {success: bool, app_name: string, path: string}.
• Redesign confirmation pattern. Instead of a boolean flag, split into two tools: call_with_message (for actual calling, requires pre-approval) and preview_call (for dry-run/confirmation). Or use MRTR (Multi Round-Trip Request) with input_required result type to ask for confirmation mid-execution.
• Add enums or pattern constraints: launch_app 'nom' should list valid app names from config.yaml as an enum. ajouter_app 'chemin' should use a oneOf schema with two patterns: (1) Windows .exe path regex, (2) steam://rungameid/[0-9]+ regex.
• Revise tool descriptions to be concise (50-150 chars), structured as WHAT+WHEN+WHY, and in English (or add English alongside French). Example: call_with_message: 'Make a phone call via Twilio, play a message, record and transcribe the response. Use when you need to contact someone by voice and capture their reply. Requires confirmation.'
• Expand parameter descriptions to 50-100 chars each, including format hints and constraints. Example: numero description should be 'Phone number in E.164 format (e.g., +33612345678) or French format (e.g., 06...). Required.'
• Document the intended error recovery flow explicitly. After launch_app returns 'app not found', what should the agent do? Add a note: 'If the app is not found, the tool returns an error message. The agent should then call ajouter_app with the app name and path, or ask the user for the app's location.'

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

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