This server exhibits critical definition quality gaps across nearly all 37 tools. Most tool definitions lack comprehensive input schemas and parameter descriptions. While some tools have basic descriptions (e.g., 'Entry point for starting vibe session' for vibe_start), these are often too generic and do not follow LLM-optimized patterns. Parameter documentation is sparse: many tools accept parameters but lack descriptions of what those parameters control or what values they should contain. Only a handful of tools (vibe_dm, vibe_game, vibe_poem) show explicit input schemas in the source, and even these are minimal. The server mixes human-friendly social verbs (dm, poem, fable) with administrative verbs (doctor, update, ship), but names are often ambiguous, 'vibe_people' does not clearly convey whether it lists people, manages contacts, or performs another action. No output schemas are documented in the source code. Error handling is not visible in the provided excerpts. Security considerations (credentials, permission gates, audit trails) are not evident. The codebase is substantial (60+ files) but the sample provided shows minimal tool metadata.
Missing input schemas for 30+ tools. Only vibe_dm, vibe_status, vibe_game, and vibe_poem show explicit parameter definitions in source code. All other tools either have no visible schema or are inferred from context.
Add comprehensive input schemas (JSON Schema with type, description, and constraints) to ALL 37 tools. For tools currently showing schemas (vibe_dm, vibe_game, vibe_poem, vibe_status), expand descriptions and add enums/patterns for constrained fields.
Document output schemas for every tool. Specify all returned fields, their types, and provide a sample response. Include pagination info (limit, offset, total_count, next_cursor) for list tools.
Expand tool descriptions from generic 10-50 character statements to 50-200 character LLM-optimized docstrings. Each description should answer: WHAT does this tool do? WHEN should it be called? WHAT are prerequisites? WHAT does it return?
Add parameter descriptions to all input schemas. For each parameter, state what it controls, valid values (as enum or regex), format (e.g., ISO 8601 dates), and constraints (min/max, length limits). Example: 'handle (string, required): The recipient's username or email address; must match @?[a-z0-9_-]+ pattern.'
Rename ambiguous tools: vibe_people → list_people or manage_contacts (clarify intent); vibe_corpse → delete_artifact or archive_message (explain purpose); vibe_weave → summarize_thread or create_narrative (be specific); vibe_ship → publish_artifact or commit_work (use domain-specific verbs).
Implement and document error handling. For each tool, define: (1) what errors it can return (e.g., 'user_not_found', 'insufficient_permissions', 'rate_limited'); (2) whether errors are retryable; (3) actionable recovery guidance (e.g., 'User not found. Try search_users() or check the spelling.').
No parameter descriptions for most tools. Even where schemas exist (vibe_dm, vibe_game, vibe_poem), parameter documentation is minimal, e.g., 'handle' is described as 'User handle (with or without @)' but lacks guidance on format, validation, or expected input types for related fields.
No documented output schemas. The source code provides no specification of what fields each tool returns, their types, or structure. LLMs cannot plan downstream tool calls or extract relevant data without knowing the response format.
Ambiguous or vague tool names that do not clearly convey the action. 'vibe_people' is unclear, does it list people, manage contacts, or perform group actions? 'vibe_corpse' is cryptic. Names should follow verb_noun pattern (get_, list_, create_, update_, etc.) for clarity.
Generic tool descriptions under 50 characters provide insufficient context for LLM selection. Examples: 'Peek at who's online (no auth required)' (vibe_who), 'Check inbox for messages' (vibe_inbox), 'Display help information' (vibe_help). These lack WHEN to use, WHAT dependencies exist, and WHAT structure is returned.
No error handling guidance visible in source code. Tools do not document what errors they might return, how to categorize them (retryable, user-fixable, fatal), or what the LLM should do next. This forces agents to guess on failure.
No permission gates or scope declarations visible. Tools that mutate state (vibe_dm, vibe_reply, vibe_update, vibe_ship) do not declare what permissions they require or verify caller authority before execution.
vibe_token and vibe_init tools accept credentials (token, GitHub OAuth flow) as parameters. Source code does not show credential validation, storage, or injection patterns. Manual token entry via vibe_token exposes secrets in MCP call logs.
No idempotency guarantees. Tools that send messages (vibe_dm, vibe_reply, vibe_email, vibe_intro) do not show idempotency keys or deduplication logic. Agents retry on ambiguous failures, repeated calls could send duplicate messages.
Tools like vibe_status, vibe_remember, vibe_reflect, vibe_mind lack parameter constraints and validation. No enum values, regex patterns, or range limits documented. LLMs cannot determine valid input formats.
vibe_statusvibe_remembervibe_reflectvibe_mind
Add permission gates: tools that mutate state should verify caller authorization before executing. Document required scopes (e.g., 'requires write:messages') in tool descriptions.
Move credential handling (vibe_token, vibe_init) to server-side secret injection. Never expose tokens or OAuth codes as tool parameters. If GitHub OAuth is required, use environment variables or a secure credential store.
Add idempotency keys or deduplication logic to message-sending tools (vibe_dm, vibe_reply, vibe_email, vibe_intro). Prevent duplicate messages on agent retry.
Add parameter validation and sanitization to prevent injection attacks (SQL, command, path traversal). Example: validate 'handle' parameter against whitelist regex before passing to API.
Implement pagination for list tools (vibe_people, vibe_inbox, vibe_feed). Return limit, offset, total_count, and next_cursor. Cap default limit at 20-50 items.
Create a tool registry or manifest document that lists all 37 tools with their full schemas, descriptions, and dependencies. Use this to generate MCP tool definitions programmatically.
Add tool annotations (readOnlyHint, destructiveHint, idempotentHint) to help clients understand tool safety. Mark vibe_dm, vibe_reply, vibe_email as destructiveHint:true; mark vibe_who, vibe_inbox as readOnlyHint:true.
Document tool composition and chaining. Which tools call each other? What outputs feed into what inputs? Create a dependency graph to help agents understand multi-step workflows.