unsubscribeCancel a subscription by id. Ownership is enforced — you can only cancel your own subscriptions. The row is deactivated (not deleted) so its historical events stay available via recent_alerts.
| Name | Required | Description | Default |
|---|---|---|---|
| id | Yes | Subscription id (uuid) returned by subscribe. |
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Discloses critical behavior beyond annotations: ownership enforcement, deactivation instead of deletion, and impact on historical events via recent_alerts. Aligns with destructiveHint=false and idempotentHint=true without contradiction.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Two concise sentences, front-loaded with the action, and every clause adds value. No wasted words.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a simple one-parameter tool, the description fully covers purpose, constraints, side effects, and relationship to recent_alerts. Output schema not needed; context signals confirm low complexity and full parameter coverage.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100%, so the description adds little beyond the schema. It reinforces that id is the subscription id but does not provide new semantic details beyond what the schema already states.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
Clear specific verb 'cancel' and resource 'subscription'. Distinguishes from siblings subscribe and list_subscriptions by stating the action and object. Ownership enforcement adds precision.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
Clear context: use to cancel a subscription. The ownership constraint ('only cancel your own') is an important usage rule. Does not explicitly mention alternatives or when not to use, but the context is sufficient.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Add one secure layer between your agents and this server.
Several tool families have ambiguous boundaries: ask_pipeworx, ask_pipeworx_beta, and ask_pipeworx_grounded are three variants of the same router (with beta currently identical), and the six polymarket tools plus bet_research heavily overlap in scanning and pricing edges. discover_tools, suggest_questions, and deep_research also all function as 'what should I query' entry points. Agents will struggle to select the right tool without carefully reading long descriptions.
Many tools follow a clear verb-first snake_case pattern (get_article_extract, resolve_entity, subscribe, validate_claim), and families like ask_pipeworx_* and polymarket_* are internally consistent. However, notable noun-phrase outliers such as entity_profile, deep_research, bet_research, recent_changes, pipeworx_feedback, and polymarket_edge_tracker break the convention. The naming is readable but not predictable across the full set.
36 tools is well over the 25+ threshold for a typical MCP server, and for a server named 'wikipedia' it is especially disproportionate: only 5 tools actually deal with Wikipedia while 31 are Pipeworx data, prediction-market, memory, subscription, and feedback utilities. The count reflects a broad all-in-one platform crammed into a Wikipedia-labeled surface rather than a well-scoped server. This is a significant scope mismatch.
The Wikipedia portion is reasonably complete for read-only lookup: search, summary, sections, full extract, and random discovery cover common encyclopedic questions without dead ends. The broader Pipeworx surface is also extensive, with query, grounded verification, deep research, entity resolution/profile/comparison, claim validation, memory, and subscription lifecycle tools. Minor gaps remain (no article categories/history, no update for subscriptions, no direct fetch of a citation URI), but they are workable.