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

No annotations are supplied, so the description carries the full behavioral burden. It says nothing about whether summaries are extractive or abstractive, how very short or over-limit inputs are handled (the 8000-character cap lives only in the schema), whether output language follows input, or what the response looks like — for a mutation-free but transformation-heavy tool this is 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?

A single front-loaded sentence with no filler — the purpose and the tunable output length are both stated immediately. It is arguably over-lean given the missing behavioral and sibling-routing context, but there is no wasted wording.

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?

The tool is simple (one required string, one optional length control, no nested objects, no output schema), so a one-line description is defensible. Still, an agent gets no guidance on sibling overlap with 'summarize_text' or on behavior at the 8000-character boundary, which are the two things most likely to cause a bad call.

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%, so both 'text' (with its 8000-char limit) and 'max_words' (10–300, default 60) are already documented. The phrase 'chosen length' merely gestures at `max_words` without adding format or edge-case meaning, 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 description names a specific verb ('Condense') and resource ('a long text') and states the output form ('short summary of a chosen length'), which is far better than restating the name. However, it never distinguishes itself from the near-identical sibling 'summarize_text' (nor from 'rewrite' or 'extract'), so an agent cannot tell from the description which of these to pick.

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 or when-not-to-use guidance and no mention of alternatives. The presence of a sibling literally called 'summarize_text' makes the absence of any disambiguation a real selection hazard.

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