The server defines 4 tools with explicit schemas and descriptions visible in index.js. Naming follows verb_noun convention (list_, run_, validate_, act_) which is appropriate. Descriptions are present and reasonably clear (average ~120 chars). However, several parameter descriptions lack actionable detail (e.g., 'env' and 'secrets' objects lack type constraints or examples of expected structure). Output schemas are not documented, callers cannot predict response structure. Error handling is basic (returns text messages but does not guide recovery or classify errors). The run_workflow tool exposes significant complexity (eventData, secrets) without clear guidance on format. STDIO-only transport caps potential regardless of definition quality.

• Add additionalProperties and minProperties/maxProperties constraints to 'env' and 'secrets' parameters. Example: {type: 'object', additionalProperties: {type: 'string'}, description: 'Environment variables as key-value pairs, e.g. {"CI": "true", "BUILD_NUMBER": "123"}'}
• Document output schema for each tool. Example for run_workflow: 'Returns an object with keys: success (boolean), output (string, stdout), error (string, stderr if failed), duration_ms (number)'.
• Enhance error messages with recovery guidance. Instead of 'Workflow execution failed: ...' return a structured object with {success: false, error_code: 'INVALID_WORKFLOW', message: '...', recovery_hint: 'Check syntax with validate_workflow tool first'}.
• Clarify eventData structure by linking to GitHub Actions webhook payload documentation or providing a minified schema. Example: 'Custom GitHub Actions event payload as JSON object (see https://docs.github.com/en/developers/webhooks-and-events/webhooks/webhook-events-and-payloads)'.
• Add a note to the dryRun parameter: 'When true, acts as a rehearsal with no actual side effects. Safe to retry on failure.'
• Add optional limit and offset parameters to list_workflows to support pagination. Default limit=50, document max=500.