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

With no annotations provided, the description carries the burden of explaining behavior. It describes the tool as a read-only informational call ('Returns...'), which implies no side effects. However, it does not explicitly disclose whether any parameters are ignored, whether network access is required, or what the output structure looks like. The description adds some value by mentioning 'safe payment rules' and 'links,' but stops short of full transparency.

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, well-structured sentence that front-loads the critical instruction ('Call this first after connecting') and then lists the return contents efficiently. Every phrase adds value, with no fluff or repetition.

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 that this is a simple entry-point tool with no required parameters and no output schema, the description covers the essentials: what it returns, when to call it, and how it differs from installing a skill. It could be more complete by stating that parameters are likely unused or directing to the playbook for next steps, but it is adequate for a first-call 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 description coverage is low (33%) with 43 optional parameters, and the description does not mention any parameters or clarify which, if any, are relevant to start_here. Since no parameters are required and the tool appears to be a simple entry point, the lack of parameter guidance is a gap, especially when the schema lists many unrelated fields. The description provides no added meaning beyond the schema.

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's purpose: 'Call this first after connecting' and 'Returns the operating playbook, first-call order, safe payment rules, tool routing map, examples, and links.' It uses a specific verb ('returns') and names a distinct resource, differentiating it from siblings like get_playbook and readme by emphasizing it's the entry point and avoids installing a separate skill.

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 tells the agent when to use this tool: 'Call this first after connecting.' This is clear usage guidance and implies precedence over other tools. It does not explicitly name alternatives or exclusions, but the 'first after connecting' instruction is sufficient context for typical usage.

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