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OpenSIPS

OpenSIPS MCP Server

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by OpenSIPS

topology_hiding_list

List active SIP dialogs currently using topology hiding. View the mapped keys rewriting Via, Contact, and Record-Route headers between ingress and egress legs for each dialog.

Instructions

List active dialogs with topology hiding engaged.

Shows the mapped keys used to rewrite Via/Contact/Record-Route between ingress and egress legs.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Behavior3/5

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

No annotations are provided, so the description must disclose behavioral traits. It informs that the tool shows mapped keys for header rewriting, implying a read-only query. However, it does not explicitly state read-only nature, performance implications, or any side effects, leaving gaps in transparency.

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?

The description is extremely concise: two sentences. The first sentence delivers the core purpose, and the second adds relevant detail. Every word is necessary, and no superfluous content is present. Front-loaded effectively.

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 tool has no parameters and an output schema exists, the description explains what is returned (mapped keys) but omits context such as authentication needs, frequency of use, or potential impacts. It is adequate minimally but not comprehensive.

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

Parameters3/5

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

The input schema has zero parameters, and schema description coverage is 100%. The baseline is 3, and the description adds no parameter information because none exist. No additional value is provided beyond the schema.

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 tool lists active dialogs with topology hiding engaged, which is a specific verb and resource. It also explains what it shows (mapped keys for header rewriting), making the purpose unambiguous and distinct from sibling tools like dlg_list.

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

Usage Guidelines2/5

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

The description provides no guidance on when to use this tool versus alternatives (e.g., dlg_list for all dialogs), nor any preconditions or exclusions. It simply states what the tool does without context for selection.

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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