Server has 11 tools with basic schemas and descriptions, but significant gaps prevent higher scores. All tools have descriptions (10-100 chars, mostly 50-80), and input schemas are present with type definitions. However, descriptions are generic and lack LLM-optimized guidance on WHEN to use each tool or what happens on failure. Parameter descriptions exist but are minimal (e.g., 'Issue identifier' without format hints). Output schemas are not documented, LLMs cannot predict response structure. No error handling guidance. Tools like list_issues and get_issue have overlapping purposes without clear disambiguation. Batch tool (batch_create_issues) lacks per-item error reporting. No tool annotations (readOnlyHint, destructiveHint, idempotentHint) despite clear read/write distinction. Naming is verb-first and clear, but parameter naming inconsistencies (e.g., 'issueId' vs 'id') force LLM mapping overhead.

• Document output schemas for all tools. Example: 'Returns {id: string, title: string, status: string, assignee: string, createdAt: ISO8601, comments: [{id, text, author, createdAt}]}'. This enables LLMs to plan downstream calls.
• Standardize parameter naming: use 'issue_id' (snake_case) consistently across all tools. Rename 'issueId' → 'issue_id', 'childId' → 'child_issue_id', 'parentId' → 'parent_issue_id'.
• Add tool annotations to all write tools. Example: 'destructiveHint: true' for update_issue, 'idempotentHint: true' for create_issue (if idempotent by design).
• Enhance descriptions with WHEN/WHY guidance. Example for get_issue: 'Retrieve a single issue by ID with optional nested expansion. Use this when you have a specific issue ID; use list_issues to search or filter across multiple issues. Returns full issue details including comments and activity history.'
• For batch_create_issues, return per-item results: {created: [{id, title}], failed: [{index, title, error}]} so LLM knows which items succeeded.

Inferred effective spec: <=2025-11-25.

• Relies on Stateful initialize / Mcp-Session-Id (removed; protocol is stateless) - make each request self-contained