This server has critical definition gaps. The single tool 'execute_skill_action' lacks a visible input schema in the source code, only a description string is present. No parameter definitions, types, or constraints are documented. The description is generic (28 chars) and does not explain what 'skill action' means, when to use it, or what it returns. The tool appears to be a wrapper around an undocumented client library (CrossModalCreativeCampaignPlannerClient) with no exposed schema. The server does not register tools via standard MCP mechanisms, it only prints a JSON status message. This is not a functional MCP server implementation.

• Implement a proper MCP server request/response loop that listens for tool calls and invokes execute_skill_action with parsed parameters.
• Define a complete JSON Schema for execute_skill_action input parameters. Include: skill_type (enum: 'campaign_planning', 'asset_generation', etc.), brand_guidelines (object with required fields), target_audiences (array), and any other inputs the skill accepts. Add type and description to each parameter.
• Expand tool description to 100-150 characters explaining: (1) what the tool does (generates cross-modal creative campaign plans), (2) when to use it (when planning multi-channel marketing campaigns), (3) what it returns (asset matrix, creative concepts, readiness score). Example: 'Generate a cross-modal creative campaign plan with asset recommendations, creative concepts, and readiness score. Use this to plan multi-channel marketing campaigns for a brand.'
• Document the output schema with typed fields: asset_matrix_grid (object with keys like hero_video, carousel_ads, headline_copy), creative_concepts (array of strings), campaign_readiness_score (number 0-10). Include descriptions for each field.
• Rename tool to a more specific verb_noun pattern, e.g., 'plan_creative_campaign' or 'generate_campaign_assets', to clarify intent and align with the 90% baseline of A+ tools starting with action verbs.