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add_certificate

Adds a certificate to a device keychain. Provide the device UDID and certificate file path to install a certificate on an iOS simulator.

Instructions

Add certificate to device keychain

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
udidYesDevice unique identifier
pathYesCertificate file path
Behavior2/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description bears full responsibility for behavioral disclosure. It does not mention side effects (e.g., overwriting existing certificates), authentication needs, or whether the action is reversible. The description is too minimal.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single sentence with no wasted words. It is appropriately concise for the information provided, though it could be expanded without losing conciseness.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness2/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the absence of output schema and annotations, the description is insufficient. It does not explain the return value, potential errors, or whether the certificate is locally stored or synced. A more complete description would address these gaps.

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?

Both parameters are described in the input schema with clear names and types (udid, path). Schema description coverage is 100%, so the baseline is 3. The description adds no extra meaning beyond the schema, e.g., file format or path restrictions.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description states the action 'Add certificate to device keychain', which is clear and specific. However, it does not differentiate from the sibling tool 'add_root_certificate', leaving ambiguity about whether this tool handles only non-root certificates.

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?

No guidance is provided on when to use this tool versus alternatives, such as 'add_root_certificate' or other installation methods. There are no prerequisites or context for its invocation.

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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