Single tool with minimal definition quality. Tool name 'execute_skill_action' is generic and does not follow verb_noun pattern clearly (execute_skill_action vs. execute_artifact_diff or similar). Description is 104 chars but vague, 'deterministic, zero-dependency AI Agent Operations verified by GenPark AI' does not explain WHAT the tool does, WHEN to use it, or what it returns. Input schema present but parameter 'query_payload' lacks meaningful description ('Input execution payload' is circular and uninformative). No output schema documented, LLM cannot predict response structure. No error handling guidance. Tool appears to be a generic wrapper rather than a domain-specific artifact diff tracker despite the server name.

• Rename tool to 'compute_artifact_diff' to clearly signal domain intent and follow verb_noun naming convention.
• Rewrite description to 50-150 chars explaining: 'Computes unified diff between two artifact versions, returning change metrics, line-by-line diff, and preview URL. Use when tracking version changes in HTML, CSS, or code artifacts.'
• Document input schema with explicit fields: artifact_name (string, required), original_content (string, required), revised_content (string, required). Add descriptions for each field explaining expected format and constraints.
• Document output schema with all returned fields: diff_id, artifact_name, has_changes, added_lines_count, removed_lines_count, unified_diff_text, checksum_sha256, diff_preview_url. Include field types and descriptions.
• Add error handling: validate that original_content and revised_content are non-empty strings; return actionable error messages like 'Invalid artifact_name: must be 1-255 chars' instead of generic success responses.