cloud_app_env_set

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

With no annotations, the description properly carries behavioral disclosure: it warns that the entire env is replaced, instructs sending the full map of entries to keep, says not to log secrets, and notes that deploy must be called afterward. This is meaningful beyond the plain 'Set app environment' statement.

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 cluttered with bilingual repetition, including 'Git apps are live' twice, and it opens with deploy timing that is not central to this tool's purpose. The actual purpose statement is buried at the end, making it harder for an agent to parse quickly.

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 3-parameter tool with no output schema, the description is incomplete. It provides useful operational notes but fails to clearly document parameter meanings, what happens before approval, or what the caller should expect after invoking deploy. The mixed structure further reduces completeness.

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 low at 33%, and the description does not compensate enough. It adds some context about the env map ('send full map to keep'), but it never explains app_id or sandbox, and it mostly restates what the schema already implies for env.

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 ends with 'Set app environment' and refers to replacing the entire env, making the core action clear. It does not explicitly say 'environment variables' but the meaning is recoverable from context and schema. It is not a tautology and is distinguishable enough from siblings like cloud_app_deploy.

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?

The description explicitly instructs calling cloud_app_deploy afterwards to apply the environment changes, which gives an ordered workflow. It does not state when not to use this tool or mention alternative tools, but the follow-up step provides useful usage guidance.

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