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

With no annotations, the description carries the full behavioral burden and does almost nothing with it: no indication of how 'recent' recent is, how many entries come back, whether results are ordered, or whether the operation is read-only (implied but not stated). The only behavioral signal is the word 'verification', which suggests these are verified/curated entries rather than raw diffs — useful but thin.

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 short phrase with no wasted words, and the domain qualifier is present. Its brevity is not conciseness so much as under-specification — there is no front-loaded statement of what the agent receives.

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?

No annotations and no output schema, so the description is the only source of information about what comes back, and it says nothing about entry contents, ordering, or volume. For a zero-parameter feed-style tool whose return shape is the entire point, this leaves a substantial gap.

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 tool takes zero parameters, so there is nothing for the description to disambiguate; the empty schema is self-explanatory. Baseline 4 applies, and nothing in the text misleads about inputs.

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?

Names a resource (a 'verification changelog') scoped to the debtuk domain, which does distinguish it from the parallel *_get_fact and *_list_facts siblings. But 'changelog' is never unpacked — an agent cannot tell whether this returns changed fact entries, a feed of verification events, or timestamps — so the purpose is only roughly graspable.

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?

There is no when-to-use guidance at all: nothing says when to call this instead of debtuk_list_facts (current state) or debtuk_get_fact (single value). The word 'Recent' hints at a recency scope but gives no threshold, and no exclusions are stated.

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