18 tools with consistent verb-noun naming (get_, search_, create_, update_, delete_, list_, add_, move_, execute_, link_, unlink_). All tools have descriptions (10-100 chars, mostly 50-80 chars, within baseline 194 avg but on the short side). Input schemas present for all tools with typed parameters and descriptions. However, descriptions lack depth: most are single-sentence, under 100 chars, missing context on WHEN to use, prerequisites, or state-modification warnings. Output schemas not documented, LLMs cannot predict response structure. Error handling absent from visible code. No parameter constraints (enums, ranges) despite many accepting restricted values (e.g., status names, relationship types). Composition is sound: tools are single-responsibility, names are clear and distinct. Naming follows verb_noun pattern well. Parameter descriptions exist but are minimal ('The issue key' vs 'The issue key (e.g., PROJ-123), a unique identifier for the issue in Yandex Tracker').

• Add output schema documentation to every tool. Example for get_issue: 'Returns: {"key": string, "summary": string, "status": string, "assignee": {"login": string, "display_name": string}, "created": ISO8601 date, "updated": ISO8601 date, ...}'
• Expand tool descriptions to 100-200 chars with WHEN/WHY context. Example: 'Get a single issue by its key. Use this to fetch full details after search_issues returns a slim projection. Requires the issue key (e.g., PROJ-123).'
• Add enum constraints to parameters accepting restricted values. E.g., link_issue.relationship: enum=['relates', 'blocks', 'is blocked by', 'duplicates', 'is duplicated by']
• Implement error handling with recovery guidance. Catch API errors and return: {"error": "User not found", "recovery": "Try search_users() with a partial name or email."} instead of raw exceptions.
• Add dry-run or confirmation step to delete_comment and unlink_issue. E.g., add a 'confirm' parameter (default false) that returns {"would_delete": true, "comment_id": "...", "message": "Confirm by calling again with confirm=true"}