create_barrier

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

With no annotations, the description carries the full burden for behavioral disclosure, but it only states that something is created. It does not mention side effects, whether creation requires authorization, whether it blocks, what happens to configured participants, or what the return value is.

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 a single front-loaded sentence with no filler or redundancy. It is efficient, though the brevity comes at the cost of useful behavioral and parameter detail.

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 tool with seven parameters, no output schema, and no annotations, an 11-word description is materially incomplete: an agent cannot infer the required call shape, return value, or lifecycle placement. It is not a pure tautology, so it earns slightly above the floor.

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 description weakly maps to 'quorum' and 'phase', but it adds no meaning for campaign_id, name, deadline_at, participants, or binding_token. Since schema description coverage is only 14%, the description does not compensate for the mostly undocumented parameters.

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-resource pair ('Create a quorum barrier') and scopes it to 'an explicit campaign phase,' which is enough for an agent to distinguish it from nearby siblings like arrive_barrier. It does not explicitly name alternatives, so it stops just short of full differentiation.

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?

There is no guidance on when to create a barrier versus use related tools such as arrive_barrier or plan_session, nor any mention of prerequisites or sequencing. The phrase 'for an explicit campaign phase' only implies a context; it does not say when-not to use the tool.

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