update_application_env

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

With no annotations, the description bears full responsibility for behavioral traits. It states that the tool modifies an existing variable but does not disclose whether it overwrites all fields or merges, nor any permissions, rate limits, or consequences. The behavior when optional parameters are omitted is unclear.

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 two sentences, efficiently stating the action. It is front-loaded with the main purpose. There is no fluff, though the second sentence slightly repeats the first.

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?

Given seven parameters, no output schema, and no annotations, the description is minimal. It does not cover return values, error scenarios, or partial update behavior. The description lacks completeness for a parameter-rich mutation tool.

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 coverage is 100%, so baseline is 3. The description adds no additional meaning beyond the schema's parameter descriptions. It simply restates the tool purpose without elaborating on parameter usage.

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 clearly states the tool updates an existing environment variable for an application. It specifies the resource (environment variable) and the action (update). However, it does not explicitly differentiate from sibling tools like create_application_env or bulk_update_application_envs, though the name and context imply single-entity update.

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 on when to use this tool vs alternatives (e.g., bulk_update_application_envs). The description only implicitly suggests using list_application_envs to get the env_uuid, but does not provide explicit when-to-use or when-not-to-use context.

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