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

Annotations already declare readOnlyHint=true, idempotentHint=true, destructiveHint=false and closed-world, so the safety profile is covered. The description adds content-scope context (what the guide contains, that a pre-cancellation verification checklist is included) but says nothing about lookup failure on an unknown slug, freshness, or size/latency of the payload.

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?

One front-loaded sentence: the category ('Full replacement guide') leads, followed by the itemized contents. The enumeration is long but each item maps to a real section of the payload, so little is wasted.

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?

With no output schema, the description effectively serves as one by naming the return contents, which is exactly what an agent needs to decide to fetch it. It is only incomplete on how to obtain the slug and what happens with an invalid slug.

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 50%: 'sections' is documented in the schema with its default, while 'slug' has no description anywhere. The listed contents loosely map to the sections enum values, which adds mild reinforcement, but nothing explains that slug is the workflow identifier produced by find_workflows.

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 specific resource ('full replacement guide') and enumerates its contents, so the agent knows this returns a complete migration plan rather than a search result like find_workflows. It never uses a verb phrase like 'retrieve the guide for a workflow slug', so the slug-driven nature is only implied.

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 statement of when to call this versus find_workflows, compare_solutions, or estimate_savings, and no note that a slug must first come from find_workflows. The 'verification checklist to run BEFORE cancelling' hints at a decision context but stops short of guidance.

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