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ntk148v

alertmanager-mcp-server

get_silence

Retrieve a specific alert silence by its ID to view or manage notification suppression in Alertmanager.

Instructions

Get a silence by its ID

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
silence_idYes

Implementation Reference

  • The main handler function for the 'get_silence' MCP tool. It takes a silence_id parameter and makes a GET request to the Alertmanager API endpoint /api/v2/silences/{silence_id} using the make_request helper.
    @mcp.tool(description="Get a silence by its ID")
    async def get_silence(silence_id: str):
        """Get a silence by its ID
    
        Parameters
        ----------
        silence_id : str
            The ID of the silence to be retrieved.
    
        Returns
        -------
        dict:
            The Silence object from Alertmanager instance.
        """
        return make_request(method="GET", route=url_join("/api/v2/silences/", silence_id))
Behavior2/5

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It states 'Get' which implies a read operation, but doesn't specify if it's safe (e.g., non-destructive), requires authentication, has rate limits, or what happens with invalid IDs. This is a significant gap for a tool with zero annotation coverage.

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 a single, direct sentence with zero wasted words. It is appropriately sized and front-loaded, efficiently conveying the core purpose without unnecessary elaboration, making it highly concise and well-structured.

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

Completeness2/5

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

Given the tool's simplicity (1 parameter) but lack of annotations and output schema, the description is incomplete. It doesn't explain what a 'silence' is in this context, what data is returned, or error handling. For a retrieval tool with no structured support, more context is needed to be fully helpful.

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 description coverage is 0%, so the description must compensate for the undocumented parameter 'silence_id'. It only mentions 'by its ID', which adds minimal meaning beyond the schema's property name. No details on ID format, source, or constraints are provided, failing to adequately clarify parameter semantics.

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?

The description 'Get a silence by its ID' clearly states the action (Get) and resource (silence) with a specific identifier (ID), making the purpose understandable. However, it doesn't distinguish this from sibling tools like 'get_silences' (plural) which likely retrieves multiple silences, missing explicit differentiation.

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. For example, it doesn't clarify if this is for retrieving a single known silence ID compared to 'get_silences' for listing all silences, or mention prerequisites like needing a valid ID. This leaves usage context implied at best.

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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