read_object_text

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

With no annotations, the description carries the full behavioral burden. It does disclose meaningful traits – a 256KB truncation threshold and binary-file interception – but omits permission requirements, error behavior, and what happens when truncation triggers.

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 clause that front-loads the core purpose and appends the two scoping traits. Efficient, though terse enough to feel under-specified rather than fully economical.

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 4-parameter read tool with no annotations, no output schema, and zero schema description coverage, the description leaves too much unspecified – notably how to target the object, encoding behavior, and the byte-limit parameter.

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?

All 4 parameters (key, bucket, encoding, max_bytes) have 0% schema description coverage, and the description adds no meaning for any of them. max_bytes plausibly relates to the 256KB threshold but is never linked to it.

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 states a specific verb and resource ('文本直读' – direct text read) and adds scope constraints (256KB truncation, binary interception). The purpose is clear, though it does not explicitly distinguish itself from the closest sibling read_object_range.

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?

Usage is only implied: the mention of binary-file interception suggests this is for text files, but there is no explicit when-to-use guidance or naming of alternatives such as read_object_range or download_file.

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