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Zabbix MCP Server

Zabbix MCP Server

dservice_get

Read-only

Retrieve discovered services (ports/protocols on discovered hosts) using filters, search, sorting, and count output for read-only network discovery checks.

Instructions

Retrieve discovered services (read-only). Discovered services represent individual checks (ports, protocols) that responded on a discovered host. They belong to discovered hosts (dhost) and are created by network discovery rules (drule).

Input Schema

NameRequiredDescriptionDefault
limitNoMaximum number of results to return.
filterNoReturn only results whose properties exactly match the given values (a single value or a list of values per key). Example: {"status": 0} or {"status": [0, 1]}. Keys: dcheckid, dhostid, dns, dserviceid, ip, lastdown, lastup, port, status, value. Text properties cannot be filtered; use 'search' for them.
outputNoProperties of the dservice object to return. Pass 'extend' for all, 'count' for the number of matches only, or a list of property names. Default when omitted: dserviceid, dhostid, dcheckid, ip, port, status. Properties: dcheckid, dhostid, dns, dserviceid, ip, lastdown, lastup, port, status, value.
searchNoReturn results whose string properties contain the given pattern (case-insensitive; '*' is a wildcard when searchWildcardsEnabled is true). Example: {"name": "web"}. Keys: dns, ip, value.
serverNoTarget Zabbix server. Available: default. Defaults to 'default' if omitted.
dhostidsNoReturn only discovered services belonging to the given discovered hosts.
druleidsNoReturn only discovered services found by the given network discovery rules.
raw_jsonNoStrips the security disclaimer preamble from the response so it is pure JSON. Default: false. Requires the bearer token to have 'allow_raw_json' explicitly enabled by an operator in the admin portal - tokens without that policy receive a PolicyError instead. WARNING: setting true bypasses the prompt-injection mitigation marker that wraps untrusted Zabbix data (host names, item descriptions, problem text). LLM clients (Claude, GPT, Cursor, ...) should leave this false; only programmatic non-LLM consumers (Python scripts, n8n workflows that json.loads the result) should set true.
sortfieldNoSort by one or more of: dserviceid, dhostid, ip (a list for several; pair with 'sortorder'). No other property is sortable.
sortorderNoSort order: 'ASC' (ascending) or 'DESC' (descending).
countOutputNoReturn the count of matching results instead of the actual data.
dserviceidsNoReturn only discovered services with the given IDs.
searchByAnyNoIf true, return results matching ANY search field (OR). Default is ALL fields (AND).
extra_paramsNoOther native dservice.get parameters, merged into the request as-is. Parameters: dcheckids, groupCount, limitSelects. Switches (true turns one on, false is the same as leaving it out): groupCount. groupCount goes with output='count': the count is then split by the ID filters the method groups by (hostids, groupids ...), one row per ID with 'rowscount'; a single row without such a filter. Sub-object selects (value 'extend', 'count' or a list of property names): selectDHosts, selectDRules, selectHosts. Any other key is refused here, because Zabbix would silently ignore it. For a parameter you are sure exists on your release but is not listed, use zabbix_raw_api_call.
searchWildcardsEnabledNoIf true, enable * and ? wildcards in search patterns.

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed11 schema fields changedv1.42.2
    • addedInput schema / additionalProperties
      Added value: +false
    • changedInput schema / properties / extra_params / anyOf
      Previous value: -[
      -  {
      -    "additionalProperties": true,
      -    "type": "object"
      -  },
      -  {
      -    "type": "null"
      -  }
      -]New value: +[
      +  {
      +    "propertyNames": {
      +      "enum": [
      +        "editable",
      +        "excludeSearch",
      +        "preservekeys",
      +        "startSearch",
      +        "dcheckids",
      +        "groupCount",
      +        "limitSelects",
      +        "selectDHosts",
      +        "selectDRules",
      +        "selectHosts"
      +      ]
      +    },
      +    "type": "object"
      +  },
      +  {
      +    "type": "null"
      +  }
      +]
    • changedInput schema / properties / extra_params / description
      Previous value: -"Other native dservice.get parameters, merged into the request as-is. Parameters: dcheckids, limitSelects. Sub-object selects (value 'extend', 'count' or a list of property names): selectDHosts, selectDRules, selectHosts. Any other key is refused here, because Zabbix would silently ignore it. For a parameter you are sure exists on your release but is not listed, use zabbix_raw_api_call."New value: +"Other native dservice.get parameters, merged into the request as-is. Parameters: dcheckids, groupCount, limitSelects. Switches (true turns one on, false is the same as leaving it out): groupCount. groupCount goes with output='count': the count is then split by the ID filters the method groups by (hostids, groupids ...), one row per ID with 'rowscount'; a single row without such a filter. Sub-object selects (value 'extend', 'count' or a list of property names): selectDHosts, selectDRules, selectHosts. Any other key is refused here, because Zabbix would silently ignore it. For a parameter you are sure exists on your release but is not listed, use zabbix_raw_api_call."
    • changedInput schema / properties / filter / anyOf
      Previous value: -[
      -  {
      -    "additionalProperties": true,
      -    "type": "object"
      -  },
      -  {
      -    "type": "null"
      -  }
      -]New value: +[
      +  {
      +    "propertyNames": {
      +      "enum": [
      +        "dcheckid",
      +        "dhostid",
      +        "dns",
      +        "dserviceid",
      +        "ip",
      +        "lastdown",
      +        "lastup",
      +        "port",
      +        "status",
      +        "value"
      +      ]
      +    },
      +    "type": "object"
      +  },
      +  {
      +    "type": "null"
      +  }
      +]
    • changedInput schema / properties / output / anyOf
      Previous value: -[
      -  {
      -    "type": "string"
      -  },
      -  {
      -    "type": "null"
      -  }
      -]New value: +[
      +  {
      +    "enum": [
      +      "extend",
      +      "count"
      +    ],
      +    "type": "string"
      +  },
      +  {
      +    "items": {
      +      "enum": [
      +        "dcheckid",
      +        "dhostid",
      +        "dns",
      +        "dserviceid",
      +        "ip",
      +        "lastdown",
      +        "lastup",
      +        "port",
      +        "status",
      +        "value"
      +      ],
      +      "type": "string"
      +    },
      +    "minItems": 1,
      +    "type": "array"
      +  },
      +  {
      +    "type": "null"
      +  }
      +]
    • changedInput schema / properties / output / description
      Previous value: -"Properties of the dservice object to return. Pass 'extend' for all, 'count' for the number of matches only, or a comma-separated list of property names. Default when omitted: dserviceid, dhostid, dcheckid, ip, port, status. Properties: dcheckid, dhostid, dns, dserviceid, ip, lastdown, lastup, port, status, value."New value: +"Properties of the dservice object to return. Pass 'extend' for all, 'count' for the number of matches only, or a list of property names. Default when omitted: dserviceid, dhostid, dcheckid, ip, port, status. Properties: dcheckid, dhostid, dns, dserviceid, ip, lastdown, lastup, port, status, value."
    • changedInput schema / properties / search / anyOf
      Previous value: -[
      -  {
      -    "additionalProperties": true,
      -    "type": "object"
      -  },
      -  {
      -    "type": "null"
      -  }
      -]New value: +[
      +  {
      +    "propertyNames": {
      +      "enum": [
      +        "dns",
      +        "ip",
      +        "value"
      +      ]
      +    },
      +    "type": "object"
      +  },
      +  {
      +    "type": "null"
      +  }
      +]
    • changedInput schema / properties / sortfield / anyOf
      Previous value: -[
      -  {
      -    "type": "string"
      -  },
      -  {
      -    "type": "null"
      -  }
      -]New value: +[
      +  {
      +    "enum": [
      +      "dserviceid",
      +      "dhostid",
      +      "ip"
      +    ],
      +    "type": "string"
      +  },
      +  {
      +    "items": {
      +      "enum": [
      +        "dserviceid",
      +        "dhostid",
      +        "ip"
      +      ],
      +      "type": "string"
      +    },
      +    "minItems": 1,
      +    "type": "array"
      +  },
      +  {
      +    "type": "null"
      +  }
      +]
    • changedInput schema / properties / sortfield / description
      Previous value: -"Sort by one or more of: dserviceid, dhostid, ip (comma-separated for several; pair with 'sortorder'). No other property is sortable."New value: +"Sort by one or more of: dserviceid, dhostid, ip (a list for several; pair with 'sortorder'). No other property is sortable."
    • changedInput schema / properties / sortorder / anyOf
      Previous value: -[
      -  {
      -    "type": "string"
      -  },
      -  {
      -    "type": "null"
      -  }
      -]New value: +[
      +  {
      +    "enum": [
      +      "ASC",
      +      "DESC"
      +    ],
      +    "type": "string"
      +  },
      +  {
      +    "items": {
      +      "enum": [
      +        "ASC",
      +        "DESC"
      +      ],
      +      "type": "string"
      +    },
      +    "minItems": 1,
      +    "type": "array"
      +  },
      +  {
      +    "type": "null"
      +  }
      +]
    • changedOutput schema / (root)
      Previous value: -{
      -  "properties": {
      -    "result": {
      -      "title": "Result",
      -      "type": "string"
      -    }
      -  },
      -  "required": [
      -    "result"
      -  ],
      -  "title": "dservice_getOutput",
      -  "type": "object"
      -}New value: +null
  2. First observedv1.41.0

TDQS

A3.5/5.0
Behavior3/5

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

Annotations already declare readOnlyHint=true and openWorldHint=false, so the parenthetical '(read-only)' is redundant rather than additive. The description does add real behavioral context by explaining lineage — these records are generated by discovery rules and attach to discovered hosts — which helps the agent reason about staleness and provenance. It says nothing about pagination limits, default result size, or whether results can be empty during an active discovery cycle.

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?

Three tight sentences: the action first, then the entity definition, then the relationship model. No filler or restated field lists. The parenthetical '(read-only)' is the only near-wasted token given the annotations already say it.

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 15-parameter read tool with full schema coverage and no output schema, the description supplies the conceptual grounding an agent needs to interpret results — what a dservice represents and why it exists. The missing piece is any hint at the default returned shape or typical result volume, though the schema's output parameter partly compensates by naming the default property set.

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?

Schema description coverage is 100% across all 15 parameters, and the schema descriptions are detailed — filter key allowlists, output modes, search semantics, and an explicit warning on the raw_json security tradeoff. The tool description contributes no parameter guidance at all, so the schema carries the entire burden. Baseline 3 is the correct ceiling here.

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 ('Retrieve discovered services') and goes further by defining what a dservice actually is — a port/protocol check that responded on a discovered host. That definition cleanly separates it from the sibling dhost_get and drule_get tools. It stops short of naming those siblings explicitly, which keeps it from a 5.

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 description says the tool is read-only and sketches the entity relationships (belongs to dhost, created by drule), which implies the context in which to use it. It never states when to prefer this over dhost_get or drule_get, or what to do if you need the host or rule record itself. Usage is inferable from the domain model but not directed.

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