Server has 12 tools with consistent naming (verb_noun pattern) and reasonable descriptions (avg ~100 chars). All tools have input schemas with type definitions. However, parameter descriptions are sparse or missing context. Output schemas are not documented. Error handling exists but lacks recovery guidance. No tool annotations (readOnlyHint/destructiveHint). Missing pagination documentation for list tools. Overall: fair baseline with room for improvement in parameter clarity and output documentation.

• Add enum constraints to status_id, tracker_id, priority_id parameters. Replace 'Status ID or "open" / "closed" / "*"' with explicit enum: ["open", "closed", "*"] or reference list_statuses() output.
• Document output schemas for all tools. E.g., get_issue returns {id, subject, description, status: {id, name}, journals: [{id, notes, author}], attachments: [{id, filename}]}. Include this in tool descriptions or a separate schema reference.
• Add tool annotations to the MCP server registration: mark create_issue, update_issue, update_journal with destructiveHint=true; mark all list_* and get_* with readOnlyHint=true.
• Enhance error messages with recovery hints. E.g., 'Issue not found: #123. Verify the issue exists with list_issues() or search_issues_full().' or 'Authentication failed: check API key and Redmine URL.'
• Document pagination behavior: 'Returns up to {limit} results (default 25, max 100). Use offset to fetch subsequent pages. No total count is returned; stop when fewer than limit results are received.'

Inferred effective spec: 2026-07-28+.

• Relies on Logging (deprecated) - log to stderr or use OpenTelemetry