delete_contact
Destructive
Delete a contact. Requires full scope.
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| contactId | Yes | The contact ID |
lacita
TDQS
A3.8/5.0
Behavior4/5
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare destructiveHint=true, readOnlyHint=false, and idempotentHint=false. The description adds the context that full scope is required, which is useful beyond the annotations. It does not contradict any annotation.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Conciseness5/5
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is extremely concise at two short phrases. 'Delete a contact' is redundant with the name but 'Requires full scope' adds valuable context. Every word earns its place.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Completeness4/5
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's low complexity (one parameter, no output schema) and strong annotations covering destructive behavior, the description is nearly complete. The 'full scope' requirement adds an important operational constraint. It could mention side effects or error behavior, but this is not critical for such a simple delete operation.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Parameters3/5
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The input schema has 100% coverage for the single parameter contactId with description 'The contact ID'. The tool description adds no additional parameter semantics, so the baseline score of 3 applies.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Purpose5/5
Does the description clearly state what the tool does and how it differs from similar tools?
The description 'Delete a contact' uses a specific verb and resource, clearly distinguishing it from sibling tools like create_contact, update_contact, and get_contact. It precisely states the operation performed.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Usage Guidelines2/5
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description does not provide any guidance on when to use this tool versus alternatives. 'Requires full scope' is a prerequisite, not a usage guideline, and no exclusions or alternative tool references are given.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
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TDQS
A3.5/5.0
Disambiguation3/5
Most tools are clearly distinct, but update_calendar overlaps with specialized tools like update_booking_settings, update_confirmation_settings, and the reminder management tools (add/delete/get reminders). This creates ambiguity about which tool to use for modifying specific settings such as buffers or reminders, though descriptions help clarify the intended scope.
Naming Consistency5/5
All 28 tools follow a consistent verb_noun snake_case pattern (e.g., create_calendar, get_appointments, update_contact). The verbs are predictable (add, cancel, create, delete, get, reschedule, send, update), making the API easy to navigate.
Tool Count2/5
With 28 tools, the set exceeds the 25+ threshold typically considered too many. While each tool serves a legitimate purpose, the high number is overwhelming and likely includes more granularity than necessary; some settings tools could be consolidated.
Completeness5/5
The tool surface covers the full lifecycle of calendars, appointments, and contacts, including availability, overrides, reminders, confirmation settings, and notifications. There are no obvious dead ends or missing operations; cancellation and rescheduling handle appointment changes, and send_invitation covers creation.