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serial.spec.attach

Attach a registered protocol spec to an active serial connection session for in-memory interaction. Enables sending commands and executing flows via the spec.

Instructions

Attach a registered spec to a connection session (in-memory only). The spec will be available via serial.spec.get for the duration of this connection. After attaching, check serial.plugin.list for a matching plugin, then present the user with their options: interact with the device using the spec (send commands, execute flows), use plugin shortcut tools if a plugin is loaded, extend an existing plugin with new tools, or create a new plugin using serial.plugin.template.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
connection_idYes
spec_idYesThe spec_id from serial.spec.register.
Behavior3/5

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

No annotations are provided, so the description carries the burden. It discloses in-memory only behavior and availability via serial.spec.get. However, it omits side effects, error conditions, and what happens on connection closure.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single sentence that packs substantial information, but it could benefit from being broken into shorter sentences for improved readability. Overall, it is fairly concise.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness3/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the absence of output schema and the presence of many sibling tools, the description is somewhat complete. However, it lacks details on error handling, parameter validation, and the lifecycle of the attached spec relative to the connection.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters2/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 50%, and the description does not add meaning to the parameters. 'connection_id' lacks any description, and 'spec_id' is only vaguely referenced. The description fails to compensate for the low schema coverage.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the action (attach), the resource (spec to connection session), and a key characteristic (in-memory only). It effectively distinguishes from sibling tools like serial.spec.register and serial.spec.get.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides post-attach steps (check for plugin, present user options) but does not explicitly state when to use this tool versus alternatives like serial.spec.get or serial.plugin.load. Usage context is implied but not fully clarified.

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

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