MCP J-Link Server

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It mentions that the reset can optionally halt the CPU, but doesn't explain what 'reset' entails (e.g., whether it reloads firmware, clears memory, or affects peripherals), nor does it cover error conditions, permissions needed, or side effects.

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 front-loaded with the core purpose, followed by parameter details in a structured 'Args:' section. It's efficient with minimal waste, though the parameter explanation could be slightly more integrated into the main text for better flow.

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 tool's moderate complexity (a reset operation with one parameter) and the presence of an output schema (which handles return values), the description is adequate but incomplete. It lacks details on behavioral aspects like what 'reset' actually does, which is critical for a tool with potential side effects.

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 description adds meaningful context for the single parameter 'halt', explaining that it controls whether the CPU pauses after reset (defaulting to True at the reset vector). Since schema description coverage is 0% and there's only one parameter, this compensates well, though it could clarify what 'reset vector' means.

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 specific action ('重置目標晶片' - reset target chip) with a precise verb and resource. It distinguishes itself from siblings like jlink_halt (which only pauses) and jlink_go (which resumes execution), making the purpose unambiguous.

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 is provided on when to use this tool versus alternatives. While the description implies it resets the chip, it doesn't specify prerequisites (e.g., whether the chip must be connected first using jlink_connect) or contrast with similar tools like jlink_erase_chip for more destructive resets.

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