ibmcloud_cf_set_env

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It merely says 'Set' without explaining whether the variable is created or overwritten, if the app needs to be restarted, or if there are any side effects. This is a significant gap for a mutating operation.

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, clear sentence of eight words. Every word contributes to the meaning, and there is no repetition or filler. It is maximally concise.

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?

The tool is simple with three string parameters and no output schema, so the description is mostly adequate for basic usage. However, it lacks any note about return values, error conditions, or whether the operation requires certain prerequisites, leaving minor but real gaps.

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 input schema already covers all three parameters with descriptive names and descriptions (Application name, Environment variable name, Environment variable value). The tool description adds no new parameter-level meaning, but since schema coverage is 100%, a baseline score of 3 is appropriate.

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 'Set an environment variable for an application' clearly states the action (set) and resource (environment variable for an application). It is specific enough to distinguish from sibling tools like ibmcloud_cf_env, though it does not explicitly mention that sibling.

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 alternatives, nor any prerequisites such as being logged in or targeting a Cloud Foundry space. The description only states what the tool does, not when to invoke it.

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