frida_channel_read

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

No annotations are provided, so the description must fully disclose behavior. It only states 'Read bytes', which is non-destructive, but it omits crucial details such as whether the operation is blocking, what happens if the channel is closed, error conditions, or how the size parameter affects reading. This is insufficient for safe invocation.

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?

The description is a single, concise sentence with no unnecessary words. However, it could be slightly more informative without losing conciseness.

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?

Given the absence of an output schema, parameter descriptions, and annotations, the description leaves critical gaps. An agent may not know what the tool returns (raw bytes?), how to interpret the output, or how to handle errors, making it incomplete for reliable use.

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 schema description coverage is 0%, and the description does not mention any parameters. It neither explains that channel_id identifies the channel nor that size controls the number of bytes to read, providing no added value over the bare schema.

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 clearly states the verb 'Read' and the resource 'bytes from an open device channel'. It distinguishes itself from sibling tools like frida_channel_open, frida_channel_write, and frida_channel_close, which have different verbs.

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 description implies that the channel must already be open ('from an open device channel'), but it does not explicitly direct the agent to use frida_channel_open first, nor does it mention when not to use this tool or any alternatives.

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