Single tool 'execute_skill_action' has a vague, marketing-heavy description (97 chars) that fails to explain WHAT the tool does, WHEN to use it, or WHAT it returns. Input schema is minimal: one string parameter 'query_payload' with no format constraints, validation rules, or examples. No output schema documented. Tool name uses 'execute' (generic verb) + 'skill_action' (ambiguous noun), does not follow verb_noun pattern. No error handling guidance, no pagination, no structured response format visible. The implementation echoes input back as JSON but provides no actionable data model for agents. Fails 6 of 7 critical checks in Definition Quality.

• Rename tool to a specific action verb: 'score_buying_propensity', 'calculate_intent_signal', or 'evaluate_account_intent', matching the actual business logic in client.py (IntentSignalPropensityScorer).
• Replace marketing description with: 'Calculate weighted, time-decayed buying intent propensity score (0-100) for a B2B account based on signals (funding, hiring, tech migration, etc.). Returns propensity_score, intent_tier (Urgent/High/Warm/Cold), and recommended_action. Use this to prioritize outbound sales sequences.'
• Define 'query_payload' parameter format explicitly: accept JSON object with 'account_name' (string), 'signals' (array of {type, date, description}), 'reference_date' (ISO 8601, optional). Add enum for signal types: funding_announcement, executive_hire, active_job_opening_match, website_traffic_surge, tech_stack_migration, vendor_evaluation_review.
• Document output schema: {propensity_score: number 0-100, intent_tier: string (Urgent Outbound Trigger|In-Market High Intent|Warm Engagement|Cold Baseline), recommended_action: string, active_signal_count: number, signal_audit: array}.
• Add error handling: validate signal types against enum, return 'Invalid signal type: {type}. Must be one of: funding_announcement, executive_hire, ...' with recovery hint. Validate date format, return 'Invalid date format: {date}. Use ISO 8601 (YYYY-MM-DD).' Validate account_name is non-empty.