render_anh

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

With no annotations, the description carries the full behavioral burden. It usefully discloses a performance characteristic (slower than 'nhin') and the side effect of persisting a file when 'duong_dan' is supplied, but says nothing about what happens when 'duong_dan' is omitted, whether the chosen engine must be pre-configured, or what the operation returns.

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?

Three short clipped sentences with no wasted words; the core action is front-loaded and the file-saving hint is placed last. The elliptical phrasing is terse but each sentence contributes something.

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 two-parameter, zero-annotation, no-output-schema tool, the description covers the action, the sibling tradeoff, and one parameter. It stops short of covering the max-size parameter, engine configuration prerequisites, or what a render produces when no output path is given.

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 0% for two parameters, so the description must compensate. It explains 'duong_dan' as the path that saves the rendered file, which adds real meaning, but 'kich_thuoc_toi_da' (max size, default 1600) is never mentioned, leaving half the parameters undocumented.

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+resource ('render anh' / render the image) and explicitly contrasts itself with the sibling 'nhin' (view), noting it is slower but produces better output. That differentiation lets an agent pick between rendering and viewing without opening either schema. It does not address other related siblings like 'cai_dat_render' or 'xuat_file'.

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?

The comparison 'cham hon nhin nhung cho ra anh dep' implies a usage tradeoff (use when output quality matters, not when speed matters) and it says to pass 'duong_dan' to save the file. However, neither the when-not condition nor prerequisites such as configuring the engine via 'cai_dat_render' are stated explicitly.

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