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NemoN

Tvheadend MCP

by NemoN

tvh_discover_satip

Destructive

Triggers SAT>IP server discovery in Tvheadend to locate available network tuners. Use it to populate discovered SAT>IP devices before configuring DVB networks and muxes.

Instructions

Trigger Tvheadend's SAT>IP server discovery. Requires SAT>IP client support.

Input Schema

NameRequiredDescriptionDefault
dry_runNo

Output Schema

NameRequiredDescriptionDefault

No arguments

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.1.0

TDQS

B3.2/5.0
Behavior3/5

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

Annotations already carry the safety profile (destructiveHint=true, openWorldHint=true, idempotentHint=false), so the bar is lower. The description adds a prerequisite but never explains what the discovery actually does on the server or why it is flagged destructive (e.g., whether it persists discovered devices/muxes), leaving a meaningful gap for a mutation-flagged tool.

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?

Two tight sentences, with the action front-loaded before the prerequisite. No wasted words, though so little is said that low verbosity borders on under-specification.

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?

An output schema exists, so return values need not be explained. Still, for a tool flagged destructive and open-world, the definition omits what the discovery changes on the server and how the dry_run option interacts with that, leaving the agent under-informed about consequences.

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?

The schema has zero description coverage, so the description must explain the single 'dry_run' parameter, which it does not mention at all. An agent can guess dry_run semantics, but nothing in the definition confirms whether it suppresses actual state changes.

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 ('Trigger') and resource ('Tvheadend's SAT>IP server discovery'), so the action is unambiguous. It does not differentiate itself from the closest sibling, tvh_scan_networks, which also performs discovery-like activity.

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 prerequisite 'Requires SAT>IP client support' is stated, which is a useful gating condition. However, there is no guidance on when to use this versus tvh_scan_networks or tvh_diagnose_network, and no note on expected prerequisites such as configured networks.

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