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

With no annotations provided, the description carries the full transparency burden and does a good job: it explains the returned content is data, not higher-priority instruction, warns about side effects. It doesn't explicitly state that the tool itself has no side effects, but for a zero-parameter retrieval tool the wording makes that safe to infer, and there is no annotation contradiction.

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 dense structured: first sentence locks the resource and equivalents, second sentence summarizes the policy's actual content, and the last example closes with the call signature. It is longer than a simple getter, but every section earns its place because it extends the agent about the policy's authority boundaries. Some redundancy could be trimmed, so it stops short of a perfect score.

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 zero parameters and an output schema, there is not much that needs to be documented. The description states the returned document version (AGCS-1/1.0), the content matters an agent would care about, and the invocation. Nothing essential for selecting or invoking this tool is missing, though an explicit claim that the call itself is read-only would push it higher.

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 is empty, the parameter count is zero, and schema coverage is 100%, so there are no hidden parameters. The description even shows the example call 'guild_coordination_policy()', confirming that no arguments are needed. This matches the baseline for a zero-parameter tool.

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 identifies the resource — the Guild's canonical coordination-safety policy AGCS-1 — and explicitly says the tool returns that document via the example. It also anchors the tool as equivalent to a known endpoint and A2A message, so an agent can recognize exactly what it is and won't confuse it with the other guild safety-related siblings.

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 implies the usage context: call this tool when an agent needs the authoritative coordination-safety policy, especially when checking what authority Guild content does or doesn't carry. It does not explicitly state when to avoid it or how it compares to sibling tools, so usage guidance remains implied rather than explicit.

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