18 tools across 5 MCP servers (Facebook, Instagram, LinkedIn, Odoo, Email). All tools have descriptions (10-50 chars, mostly generic) and JSON Schema input definitions. However, critical gaps: (1) Descriptions are uniformly brief and lack LLM-optimized guidance on WHEN to use each tool or what happens (e.g., 'Post a message to Facebook Page' vs 'Create and publish a post to your Facebook business page; requires approval if not admin'). (2) Parameter descriptions are sparse or missing context (e.g., 'metric' param in facebook_get_insights lacks enum values or format guidance). (3) No output schemas documented, LLMs cannot predict response structure. (4) Error handling absent, no recovery guidance. (5) Security concerns: no evidence of secret injection patterns; credentials likely in .env but not validated in code. (6) Tool composition issues: create_linkedin_post + post_linkedin should be one atomic operation or clearly sequenced. Average tool score: 42/100.

• Add output schemas to all tools. Document response structure with field names, types, and descriptions. Example: facebook_post should return {post_id: string, created_at: ISO8601, status: 'published'|'pending'}.
• Expand tool descriptions to 50-200 chars. Include WHEN to use (e.g., 'Use to retrieve engagement metrics after posting'), WHAT changes (e.g., 'Creates a draft post; requires approval before publishing'), and PREREQUISITES (e.g., 'Requires admin access to the page').
• Add enum constraints to 'metric' parameters. Document valid values: 'page_impressions', 'page_engaged_users', 'page_post_engagements', etc. Replace free-form strings with constrained enums.
• Implement error handling with recovery guidance. Example: 'post_id not found. Call facebook_get_posts() to retrieve valid post IDs.' Categorize errors as retryable (rate limit) vs user-fixable (invalid ID) vs fatal (auth failure).
• Merge create_linkedin_post + post_linkedin into a single atomic tool or add explicit sequencing docs. If two-step is intentional, document the workflow: 'Step 1: create_linkedin_post saves draft to Pending_Approval/. Step 2: User reviews and moves to Approved/. Step 3: post_linkedin publishes from Approved/.'