Skip to main content
Glama

lw_ble_dump

Perform a one-shot BLE device recon: retrieve service table, all readable characteristic values, and negotiated MTU in one call. Read failures are reported without aborting.

Instructions

One-shot device recon: service table, every readable characteristic value, and the negotiated MTU in a single call. Characteristics that fail to read are reported in read_failures instead of aborting the whole dump.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
timeout_sNo
connection_idYes

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.1.0

TDQS

B3.4/5.0
Behavior3/5

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

With no annotations, the description carries full burden and does add value: it discloses the dump contents and the partial-failure behavior ('fail to read are reported in read_failures instead of aborting'). However, it omits the read-only/side-effect profile, connection-state prerequisites, and timeout behavior.

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

Conciseness5/5

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

Two tight sentences, front-loaded with the purpose and followed by the failure-handling nuance. No filler and nothing misordered.

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

Completeness4/5

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

For a moderately simple recon tool with an output schema covering return values, the description gives a clear purpose and the key failure-mode behavior. The remaining gap is the entirely undocumented parameters, which is a real but limited shortfall.

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 0% and the description says nothing about either parameter. Neither connection_id (the required handle) nor timeout_s (its meaning, units, or effect) is explained anywhere, so the description fails to compensate for the coverage gap.

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

Purpose4/5

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

States a specific verb and resource: a one-shot recon that returns the service table, all readable characteristic values, and the negotiated MTU. The composite nature implicitly differentiates it from the granular read/discover/mtu siblings, though it never names them.

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 phrase 'one-shot ... in a single call' implies the use case (grab everything at once rather than making several calls), but there is no explicit when-to-use, when-not, or named alternative among the many read/discover/mtu siblings.

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