activate_agent_marketplace_action

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

With no annotations, the description carries the full behavioral burden. It discloses one genuinely useful trait — that activation preserves HITL and entitlement checks — implying the alternative behavior is possible. However, it omits side effects, reversibility, repeat-activation behavior, and what the idempotency_key semantically guarantees.

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?

A single nine-word sentence with zero filler. The verb and resource are front-loaded, and the safeguard qualifier earns its place by disambiguating the operation's behavior.

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?

An output schema exists so return values are covered, but for a mutating lifecycle operation with two required parameters, no annotations, and zero parameter documentation, the description is too thin. Missing: prerequisites (must be installed first), what activation changes, idempotency semantics, and relationship to install/uninstall.

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 description coverage is 0%, so the description must compensate for parameter meaning, but it mentions neither installation_id nor idempotency_key. installation_id is self-explanatory, but idempotency_key's purpose and expected semantics are entirely unexplained, making this a clear gap.

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 states a specific verb ('activate') and resource ('an installation'), and the qualifier 'while leaving HITL and entitlement checks intact' adds meaningful scope. It is distinguishable from marketplace siblings like install, uninstall, pin, and archive, though it never names or contrasts them explicitly.

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?

No guidance is given on when to use this tool versus install_agent_marketplace_action, uninstall_agent_marketplace_action, or pin_agent_marketplace_action. There are no conditions, exclusions, or lifecycle context (e.g., 'use after installing') — only a weak implication that activation differs from installation.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.