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?
Beyond annotations, the description reveals soft-delete behavior (row deactivated not deleted) and ownership enforcement, which are key behavioral traits. This aligns with idempotentHint and destructiveHint annotations 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?
Three sentences, all informative, starting with the action, then ownership, then the side effect. No redundancy and every sentence adds value.
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 with no output schema, the description covers the action, parameter, ownership, and persistence of historical data. Annotations handle idempotency, leaving no significant gaps.
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 schema already describes id as a uuid returned by subscribe, but the description adds the semantic constraint that the id must be your own subscription, enriching parameter meaning.
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 uses a specific verb 'Cancel' with the resource 'subscription' and identifies the action by id. It distinguishes from siblings like subscribe and list_subscriptions by emphasizing cancellation and ownership enforcement.
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?
It provides context that only own subscriptions can be canceled and mentions that historical events remain available via recent_alerts. However, it does not explicitly name alternatives for cancellation itself, only pointing to recent_alerts for history.
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.
The tool set mixes two unrelated domains (Star Wars and Pipeworx data services), which is initially confusing. Within the Pipeworx suite, tools like ask_pipeworx and ask_pipeworx_grounded are clearly differentiated, but some overlap exists (e.g., deep_research vs. compare_entities both do multi-source lookups). Overall, most tools have distinct purposes, but the domain mismatch lowers clarity.
All tools use snake_case consistently (e.g., ask_pipeworx, entity_profile, resolve_entity). The naming pattern is mostly verb_noun or descriptive_compound, which is predictable. Minor deviation: some tools start with a verb (ask_pipeworx) while others start with a noun (entity_profile), but the style is uniform.
34 tools is on the high side but not unreasonable for a data-heavy server. However, the set covers two distinct domains (Star Wars and Pipeworx), making it feel bloated. The count could be reduced by separating the domains or pruning rarely-used tools.
The Pipeworx side appears comprehensive, covering queries, profiles, comparisons, subscriptions, alerts, and memory. The Star Wars side is incomplete—it lacks tools for vehicles, species, or individual characters (only search_people exists). The overall surface has gaps in one of its two domains.