update_mcp_server_approval_policy_route

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

Annotations already declare readOnlyHint=false, idempotentHint=false, destructiveHint=false and openWorldHint=true, so the safety profile is covered. The description adds only the cryptic 'Deprecated upstream' note, which raises a behavioral question (is this tool still supported?) without answering it, so the added value is minimal and ambiguous.

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?

It is short and front-loads the action, which is good. However, the dangling sentence fragment 'Deprecated upstream' is not a well-formed statement and costs clarity rather than earning its place.

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 simple two-parameter mutation with complete schema coverage, the description still omits essential context: prerequisites, what the policy change affects, and, most importantly, what 'deprecated upstream' means for the caller. The deprecation note is raised but never explained.

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 100%: both mcp_server_id and the enumerated approval_policy are fully documented in the schema, including the three policy values. The description adds nothing beyond that, so the baseline 3 applies.

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 phrase 'Update Mcp Server Approval Policy' names a verb and resource, so an agent can guess the operation. But the trailing fragment 'Deprecated upstream' muddies whether this tool should be called at all, and there is no differentiation from siblings like update_mcp_server_config_route or update_mcp_tool_config_override_route.

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?

No when-to-use guidance is given. The only contextual signal, 'Deprecated upstream,' does not tell the agent whether to call this tool, avoid it, or prefer a replacement, and no alternative is named despite several similar update_* MCP siblings existing.

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