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

readOnlyHint already covers safety, and the description adds real value beyond it: the return is a markdown document at a known path, contains watch/rules/costs/YAML sections, is capped at <=5 KB, and carries a 'Not advice' disclaimer. It does not cover whether a missing trader or recipe errors.

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?

Highly compressed and front-loaded — resource, location, contents, caveat, size limit — with no filler. The fragment style borders on cryptic, but nothing is redundant.

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 read-only two-param fetch with no output schema, the description adequately characterizes what comes back. It falls short on the undocumented `cat` parameter and on any failure behavior, which an agent needs before calling.

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 path hint implies `trader` is a slug, but the schema already says 'as get_trader'. The `cat` parameter is never mentioned in the description and its schema entry has no description, leaving one of two params (50% coverage) unexplained anywhere.

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 (a trader's copy recipe) and its form (markdown at /traders/<slug>/copy.md), which separates it from get_trader. The telegraphic 'watch, rules, costs, YAML' enumerates contents rather than clearly saying 'fetch'.

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?

'for your own agent' implies the use case — building an agent that copies a trader — but there is no explicit when-to-use, and no mention of when to prefer get_trader or get_bot_guide instead.

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