byte-link exposes 5 tools with basic schemas and Chinese descriptions. All tools have input schemas with typed parameters and descriptions, but quality is inconsistent. Tool names are action-verb-based (search, list, get, stats, delete) which is good. However, descriptions are terse (avg ~60 chars), lack context on WHEN to use each tool, and omit error recovery guidance. Parameter descriptions are present but minimal. Output schemas are not documented, LLMs cannot predict response structure. The delete tool lacks confirmation/dry-run pattern despite being destructive. No tool annotations (readOnlyHint/destructiveHint) despite clear read/write distinction. Error handling is absent from visible code.

• Document output schemas for all tools. Specify fields, types, and pagination structure. E.g., search returns {results: [{title, id, url}], total, hasMore}.
• Expand descriptions to 100-200 chars. Add WHEN to use: 'search: Find bookmarks by keyword (supports Chinese). Use before get() to discover IDs. Returns title+ID+URL for chaining.'
• Add tool annotations: mark search/list/get with readOnlyHint=true; mark delete with destructiveHint=true. Enables agents to reason about safety.
• Implement confirmation pattern for delete: add optional dry_run parameter or return a confirmation_token requiring a second call to confirm deletion.
• Add enum constraints to type parameters. E.g., type in search: enum=['bookmark', 'all']; kind in list: enum=['nav', 'read']. Document in parameter descriptions.