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OpenSIPS

OpenSIPS MCP Server

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by OpenSIPS

cfg_list_flags

List all available WITH_* feature flags used in OpenSIPS configuration, providing a Kamailio-compatible vocabulary to support engineers migrating between SIP server projects.

Instructions

List all available WITH_* feature flags.

The flag vocabulary is Kamailio-compatible so engineers migrating between the two projects keep the same mental model.

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?

With no annotations, the description bears full responsibility. It notes Kamailio compatibility, which is helpful, but does not disclose if the list is read-only, the output format, or any side effects. Minimal transparency for a simple list operation.

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 two sentences, front-loading the core purpose with no unnecessary words. Every sentence adds value.

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?

Given zero parameters and an available output schema, the description is reasonably complete. It could mention the output is a list of flag names, but the schema covers that. Slight gap in usage context.

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

Parameters4/5

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

The tool has no parameters, earning a baseline of 4. The description adds no parameter information, which is acceptable as none exist.

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 all available 'WITH_*' feature flags, using a specific verb and resource. This distinguishes it from sibling cfg_list_* tools that list modules, scenarios, or versions.

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?

No guidelines on when to use this tool versus alternatives are provided. The description does not mention context, prerequisites, or when to avoid using it.

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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