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Server Quality Checklist

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  • Latest release: v0.1.0

  • Disambiguation5/5

    publish_message and get_mqtt_config have clearly distinct purposes: one sends a message, the other reads configuration. There is no overlap or ambiguity between the two tools.

    Naming Consistency5/5

    Both tools follow a consistent verb_noun pattern: 'publish_message' and 'get_mqtt_config'. The naming is uniformly action-first and predictable.

    Tool Count4/5

    With only 2 tools, the set is minimal but appropriate for the server's narrow purpose of MQTT notification publishing. It could arguably include a test-connection tool, but the count is reasonable for the scope.

    Completeness5/5

    The domain is focused on publishing messages to a configured MQTT topic and checking configuration. Providing both an action and a config inspection covers the essential operations without obvious gaps.

  • Average 3.7/5 across 2 of 2 tools scored.

    See the Tool Scores section below for per-tool breakdowns.

    • No community issues in the last 6 months
    • 22 commits in the last 12 weeks
    • Last stable release on
    • No critical vulnerability alerts
    • No high-severity vulnerability alerts
    • No code scanning findings
    • CI is passing
  • This repository is licensed under MIT License.

  • This repository includes a README.md file.

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      ]
    }

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How is the quality score calculated?

The overall quality score combines two components: Tool Definition Quality (70%) and Server Coherence (30%).

Tool Definition Quality measures how well each tool describes itself to AI agents. Every tool is scored 1–5 across six dimensions: Purpose Clarity (25%), Usage Guidelines (20%), Behavioral Transparency (20%), Parameter Semantics (15%), Conciseness & Structure (10%), and Contextual Completeness (10%). The server-level definition quality score is calculated as 60% mean TDQS + 40% minimum TDQS, so a single poorly described tool pulls the score down.

Server Coherence evaluates how well the tools work together as a set, scoring four dimensions equally: Disambiguation (can agents tell tools apart?), Naming Consistency, Tool Count Appropriateness, and Completeness (are there gaps in the tool surface?).

Tiers are derived from the overall score: A (≥3.5), B (≥3.0), C (≥2.0), D (≥1.0), F (<1.0). B and above is considered passing.

Tool Scores

  • Behavior2/5

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

    With no annotations provided, the description must carry the full burden of behavioral disclosure. It indicates a publish operation (an outgoing side effect) but does not mention potential message loss semantics, delivery guarantees based on QoS, failure behavior, or whether the call returns an acknowledgment. This is a significant transparency gap for a mutation tool.

    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-loaded with the core purpose, and the second sentence adds necessary configuration context. Every word earns its place with no redundancy or fluff.

    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?

    Despite having an output schema, the description is incomplete for a tool with 3 parameters and an external side effect. It lacks parameter semantics and behavioral details, so an agent would not know how to craft a correct message or interpret QoS/retain values. The configuration note is helpful but insufficient for full operational understanding.

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

    Parameters1/5

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

    Schema description coverage is 0%, and the description provides no information about the parameters (message, qos, retain). It does not explain what 'message' content should contain, what QoS values are accepted, or how retain behaves. The description adds zero value beyond the schema's bare property names.

    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's action—'Publish a message to the configured MQTT topic'—with a specific verb and resource. This distinguishes it from the sibling tool get_mqtt_config, which retrieves configuration rather than sending data.

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

    Usage Guidelines4/5

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

    The description provides clear context by noting that broker connection settings are pre-configured via environment variables, so the agent understands no connection parameters are needed. However, it does not explicitly mention when to use this tool versus get_mqtt_config or any exclusion scenarios, so it falls short of a perfect score.

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

  • Behavior3/5

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

    With no annotations, the description carries the burden of behavioral disclosure. It does mention that secrets are excluded, which is a useful redaction behavior, but does not describe other traits like whether it requires authentication or what happens if no config is set.

    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, compact sentence with no filler. It is front-loaded with the verb and resource, making it easy to scan, and every word earns its place.

    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 the tool's simplicity (no params, output schema exists), the description is largely sufficient. It clearly states what is returned and an important caveat (secrets excluded). It could be slightly more complete by mentioning when to use it, but overall it is adequate.

    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?

    There are zero parameters, so the input schema fully covers the parameter side (baseline 4). The description adds a little semantic value about the output scope ('MQTT target, excluding secrets'), but it is not required for parameters.

    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 uses a specific verb ('Return') with a clear resource ('configured MQTT target') and adds a key qualifier ('excluding secrets'). It distinguishes itself from the sibling publish_message by clearly being a read operation for configuration.

    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 implies its use case (reading MQTT config) but does not explicitly state when to use it over alternatives or any exclusions. The sibling publish_message is different, but no direct comparison or guidance is provided.

    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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