Import Opml Tool

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

With no annotations, the description carries the full burden. It does disclose a valuable non-obvious side effect — categories are auto-created from outline groups — which goes beyond the tool name. However, it omits duplicate handling, whether existing feeds are merged or skipped, and any permission/auth requirements for a mutation operation.

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 compact sentence with the verb and resource front-loaded and no filler. It is appropriately sized, though the category-creation side effect could have been surfaced more prominently given it is the most consequential behavior.

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?

An output schema exists so return values needn't be described, and the schema covers the sole parameter. But for a bulk mutation tool with no annotations, the description should address idempotency and what happens to pre-existing feeds/categories — a real gap for an import operation.

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?

One parameter with 100% schema description coverage, so the schema already defines file_path. The description adds no format, path-resolution, or encoding detail beyond what the schema provides, 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?

States a specific verb ('Import') and resource ('feeds from an OPML file') plus a secondary effect ('creating categories from outline groups'). It clearly distinguishes itself from the sibling export_opml_tool by direction, though it never names the sibling explicitly.

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 guidance on when to use this versus add_feed_tool or export_opml_tool, no prerequisites (e.g., file must be accessible/readable), and no exclusions. The agent must infer usage entirely from the name.

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