fossa_create_release_group_release

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

Annotations already indicate this is a write operation (readOnlyHint=false). The description adds beyond that by specifying the required environment variable, the structure of `projects` entries, and the consequence of an empty `projects` array. This is useful behavioral context that is not present in the annotations.

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 three sentences, front-loaded with the primary purpose, and each subsequent sentence adds critical operational detail (write requirement, project structure, constraint). No wasted words.

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 the presence of an output schema and annotations, the description covers the essential operational constraints: write permission, project object shape, and non-empty requirement. It could explicitly state that it creates a new release record, but the purpose statement implies that. Overall sufficient for correct invocation.

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?

With 0% schema description coverage, the description needed to explain all parameters. It thoroughly describes `projects` (keys, optional fields, requirement), but `title` and `release_group_id` are only inferable from their schema titles. The description partially compensates but leaves semantic gaps for two of three params.

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 action: 'Add a release to an existing FOSSA release group.' This clearly identifies the verb and resource, and distinguishes it from related tools like create_release_group (which creates a group) and update_release_group_release (which modifies an existing release).

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 provides clear context: it targets an existing release group, requires FOSSA_ALLOW_WRITES=true, and mandates at least one project. It does not explicitly name alternative tools, but the 'existing' phrasing and the prerequisites imply when this tool is appropriate versus creating/updating groups or releases.

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