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. |
Changes observed during successful MCP inspections. Dates show when Glama detected each change.
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Beyond the annotations (which already indicate non-read-only, idempotent, non-destructive), the description adds meaningful behavioral context: ownership enforcement and the fact that the row is deactivated, not deleted, keeping historical events available. This enriches the agent's understanding of side effects.
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?
The description is two sentences, front-loaded with the primary action and free of unnecessary words. Every sentence adds essential information (what it does, constraints, and the deactivation effect), making it highly concise and well-structured.
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 single-parameter, no-output-schema tool, the description covers the core aspects: the action, the ownership constraint, and the post-condition (deactivation with preserved history). It does not mention error handling or success response, but given the simplicity, it is sufficiently complete for effective use.
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?
The input schema already provides a detailed description of the single parameter (id as a subscription uuid from subscribe), and the description only says 'by id', adding no further semantic detail. With 100% schema coverage, the description does not need to compensate, so the baseline score of 3 is appropriate.
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?
The description clearly states the action ('Cancel a subscription by id') with a specific verb and resource, and distinguishes itself from siblings like 'subscribe' and 'list_subscriptions' through the explicit cancellation purpose and the note about deactivation preserving history for 'recent_alerts'.
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?
The description provides clear context for when to use the tool (to cancel a subscription) and includes an important restriction ('you can only cancel your own subscriptions'), which acts as a usage exclusion. It does not explicitly name alternatives, but the purpose is unambiguous.
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.
Most tools have clear distinct purposes, but ask_pipeworx, ask_pipeworx_grounded, and deep_research overlap in querying Pipeworx data sources. Entity_profile and recent_changes also share some coverage. Overall, agents can differentiate, but a few pairs may cause confusion.
Tool names use snake_case for multi-word (e.g., ai_visibility_check) but also single-word verbs (forget, recall, remember). The pattern is not uniform: some are verb_noun, some are just noun or verb. Mixed conventions reduce predictability.
At 33 tools, the set is on the high side for an MCP server. The server covers a broad data-query domain, which justifies many specialized tools, but the count is borderline heavy and includes several meta-tools (discover_tools, suggest_questions). Could be streamlined without losing core functionality.
The tool surface is comprehensive for data retrieval across financial, economic, pharmaceutical, real estate, weather, and prediction markets. It includes both single-lookup and comparative tools, plus monitoring via subscriptions. Minor gaps exist (e.g., no direct update/delete for user memory beyond forget), but the core domain is well-covered.