Firebase MCP Server

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

With no annotations provided, the description bears full responsibility for disclosing behavior, yet it fails to specify what constitutes 'environment' information (project ID, region, configuration variables), caching behavior, or authentication requirements. The term 'information' is vague and provides no operational context.

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 single sentence is efficiently constructed with no redundant words or filler. However, extreme brevity in the absence of schema or annotation support leaves critical informational gaps, preventing a score of 5.

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?

Lacks essential detail for a tool with no output schema: it does not enumerate, categorize, or describe the structure of the returned environment data. Given zero annotations and no parameters, the description must compensate by detailing return values, which it fails to do.

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?

Zero parameters are defined in the input schema, establishing the baseline score of 4 per evaluation rules. The description appropriately implies no inputs are required by omitting parameter references.

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?

States a clear verb-object pair ('Get information' + 'Firebase environment') that identifies the resource being accessed. However, it does not differentiate from siblings like get_document or get_auth_token, which also retrieve Firebase-related information, leaving the specific scope of 'environment' undefined.

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?

Provides no guidance on when to invoke this tool versus alternatives. Does not indicate typical use cases (e.g., initialization, configuration checks) or prerequisites, forcing the agent to infer applicability from the name alone.

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