Server Quality Checklist

Tool Scores

• vcluster_disconnectC
  2.7/5.0
  Behavior2/5

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

  The description discloses the return type (CommandResult or error) but does not explain the side effects of disconnecting, such as whether it modifies kubeconfig context, requires an active connection, or is reversible. With no annotations, the description fails to carry the behavioral transparency burden.

  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?

  The description is brief and to the point, with no redundant wording. The structure includes a short action statement and a return type section, which is efficient, though it sacrifices completeness.

  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?

  For a tool that likely changes state (disconnecting), the description lacks essential context about prerequisites, effects, and alternatives. The output schema may document return values, but the description does not sufficiently inform an agent when and how to invoke this tool safely.

  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 single parameter kubeconfig_path is not mentioned in the description. Schema coverage is 0%, and the description does not clarify how or why this path is used, leaving the agent to infer semantics solely from the parameter name.

  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 clearly states 'Disconnect from a vcluster,' which identifies the specific action and resource. It is distinct from sibling tools like vcluster_delete or vcluster_pause, though it does not explicitly contrast itself with them.

  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?

  There is no guidance on when to use this tool versus alternatives such as vcluster_delete or vcluster_pause. No context is provided about prerequisites, scenarios, or exclusions.

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

• get_namespace_labelsA
  3.7/5.0
  Behavior3/5

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

  With no annotations provided, the description carries the burden of behavioral disclosure. It correctly implies a read-only operation ('retrieves all labels') and documents the kubeconfig fallback behavior. However, it does not disclose authentication requirements, error conditions, or explicitly state it does not modify state, leaving some gaps.

  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?

  The description is well-structured with a clear purpose statement, a brief explanation of labels, and organized Args/Returns sections. It is concise without unnecessary verbosity, though the generic explanation of labels could be trimmed.

  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 relatively simple read tool, the description covers purpose, parameters, and return type. It does not mention error handling or access prerequisites, but the tool's simplicity and the provided Args/Returns sections make it sufficiently complete for an AI agent to invoke correctly.

  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?

  Schema description coverage is 0%, so the description must fully explain parameters. It does so effectively: 'namespace' is defined as the namespace to get labels from, and 'kubeconfig_path' is described with optionality and default behavior. This adds meaningful semantics beyond the raw 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 'Get labels for a specific namespace' and explains that it retrieves all labels associated with a Kubernetes namespace. It distinguishes itself from sibling tools like get_namespace_annotations by explicitly focusing on labels rather than annotations.

  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 context but no explicit guidance on when to use this tool versus alternatives. It does not mention when not to use it, mention alternatives, or explain how it relates to sibling tools like set_namespace_label or get_namespace_annotations.

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

• set_namespace_labelA
  3.8/5.0
  Behavior3/5

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

  With no annotations, the description carries the full burden of behavioral disclosure. It mentions the create/update behavior, return value (True or error object), and optional kubeconfig fallback, but does not discuss permissions, reversibility, or immediate cluster effects beyond the basic operation.

  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?

  The description is well-structured with a clear summary, a brief elaboration on labels, an Args block, and a Returns block. The only minor flaw is slight redundancy between the first sentence and the following sentence, but the overall structure is efficient and scannable.

  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 simple four-parameter tool with an output schema, the description covers the key operational aspects: parameters, optional kubeconfig, and return format. It does not dive into edge cases or detailed error handling, but it is sufficient for correct invocation.

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

  Parameters5/5

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

  The schema description coverage is 0%, and the description fully compensates by explaining all four parameters: namespace, key, value, and kubeconfig_path, including default behavior. This gives the agent all necessary information to use the tool correctly.

  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 'Create or update a label on a namespace,' specifying both the action and the resource. This unambiguously identifies the tool's purpose and distinguishes it from sibling tools like set_namespace_annotation.

  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 choose this tool over alternatives such as set_namespace_annotation or get_namespace_labels. It does not name alternatives or offer any exclusion criteria, leaving the agent to infer usage purely from the tool's name and purpose.

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

• delete_namespace_annotationA
  4/5.0
  Behavior4/5

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

  Without annotations, the description covers key behavior: it states that deleting a non-existent annotation is considered successful, and it explains the return value (Union[bool, str]). It also clarifies the optional kubeconfig_path behavior. However, it does not disclose permission requirements or the effect of deleting a non-existent namespace.

  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?

  The description is well-structured with a summary, details, Args, and Returns sections. The first two sentences are somewhat redundant ('Delete an annotation from a namespace' vs 'This function removes an annotation from a Kubernetes namespace'), which slightly reduces conciseness.

  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?

  The description covers the purpose, all parameters, and the return behavior, making it sufficient for a simple deletion operation. It lacks explicit usage guidance and potential failure scenarios (e.g., non-existent namespace), but the output schema likely covers return details.

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

  Parameters5/5

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

  The schema has 0% description coverage, but the description compensates by explaining every parameter: namespace, key, and kubeconfig_path, including the default behavior when kubeconfig_path is not provided. This adds meaning beyond the schema's bare titles.

  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 opens with a specific verb and resource: 'Delete an annotation from a namespace.' It clearly states the operation and the target, distinguishing it from sibling tools like get_namespace_annotations and set_namespace_annotation based on the delete action.

  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 does not provide any guidance on when to use this tool versus alternatives, nor does it mention exclusions or conditions. It simply states what the function does, leaving the agent to infer usage from the purpose alone.

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

• vcluster_createA
  4/5.0
  Behavior3/5

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

  With no annotations provided, the description carries the transparency burden. It discloses key behaviors: creation, optional values file, upgrade behavior, and kubeconfig default. It also states the return type. However, it does not clarify what happens when a vcluster with the same name already exists and upgrade is False, nor does it mention side effects like switching to the new vcluster context or required permissions. The description is moderately transparent but has gaps.

  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?

  The description is well-structured with a concise introductory paragraph, a clearly labeled Args block, and a Returns section. It front-loads the main purpose. While it is slightly verbose due to repeating the purpose and providing a full Args list, every sentence contributes useful information and no filler is present.

  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?

  The tool has 4 parameters and no annotations or output schema given to the agent. The description covers all parameters, explains the return type, and describes the upgrade behavior. It still lacks details on prerequisites (e.g., host cluster, kubectl), what happens on duplicate names without upgrade, or whether the created vcluster becomes the active context. For a create operation, the description is reasonably complete but could be richer.

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

  Parameters5/5

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

  Schema description coverage is 0%, so the description must compensate. It does so thoroughly by providing a dedicated Args section explaining each parameter: name (the name for the new vcluster), values (optional path to a values file), upgrade (flag to upgrade if it was created before), and kubeconfig_path (optional path, with a default behavior described). This adds significant meaning beyond the basic schema titles.

  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 opens with 'Create a new vcluster', a specific verb+resource phrasing that immediately distinguishes it from sibling tools like vcluster_describe, vcluster_delete, and vcluster_list. It further clarifies the scope by mentioning the cluster name and optional configuration, making the tool's purpose unambiguous.

  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 when to use the tool by stating 'Create a new vcluster' and describing the upgrade parameter ('the cluster will be upgraded if it was created before'). However, it does not explicitly mention alternatives, when not to use it, or how it relates to sibling tools like vcluster_delete or vcluster_pause. Usage context is implied rather than explicitly guided.

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

• vcluster_listA
  4.2/5.0
  Behavior4/5

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

  With no annotations provided, the description carries full burden for behavioral disclosure. It explains internal client setup, serialized JSON return format, error behavior, and default kubeconfig handling. It does not mention side effects, but the read-only nature is implied by 'List'. No contradictions with annotations exist.

  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?

  The description is well-structured with a summary sentence, behavioral details, and clearly labeled Args and Returns sections. It is front-loaded and efficient, though there is minor redundancy between the first sentence and the second sentence.

  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 simple list tool with one optional parameter, the description covers purpose, behavior, parameter semantics, and return format. It lacks details about error object structure or permission requirements, but these are not critical. Overall, it is sufficient for selecting and invoking the tool.

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

  Parameters5/5

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

  The input schema only defines kubeconfig_path as an optional string/null with default null. The description adds full meaning: 'Optional path to a kubeconfig file. If not provided, the default kubeconfig from the environment will be used.' Given 0% schema description coverage, this compensation is complete.

  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 opens with 'List all vclusters in the current Kubernetes context,' clearly stating the verb (List), resource (vclusters), and scope (current Kubernetes context). This distinguishes it from sibling tools like vcluster_describe, which targets a single vcluster.

  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 notes the current Kubernetes context and the optional kubeconfig path, providing context for when the tool can be used. However, it does not explicitly mention when to prefer this over alternatives like vcluster_describe, nor does it state any exclusions. Usage is implied but not directly addressed.

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

• vcluster_pauseA
  4.3/5.0
  Behavior3/5

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

  No annotations are provided, so the description carries the full burden. It discloses that the operation is non-destructive ('without deleting it') and preserves state, and it mentions the return type. However, it does not detail potential side effects, prerequisites, or behaviors on failure beyond returning an error object.

  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 well-structured with a summary, Args, and Returns sections. It is concise, front-loaded with purpose, and every sentence adds value. No redundancy or unnecessary content.

  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?

  The description covers the purpose, parameter semantics, return value, and a typical use case. A minor gap is the lack of explicit comparison to sibling tools (e.g., resume, delete) for decision-making, but the provided context is sufficient for correct invocation.

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

  Parameters5/5

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

  The input schema has no descriptions for parameters (0% coverage). The description compensates fully by explaining each parameter: name, namespace (with default behavior), and kubeconfig_path (with default). This is critical for correct invocation.

  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 pauses a running vcluster, with a specific verb and resource. It also explains the effect ('stops the virtual cluster without deleting it'), which distinguishes it from sibling tools like vcluster_resume and vcluster_delete.

  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 for when to use the tool: 'This is useful for temporarily suspending workloads while preserving the cluster state.' It implies a comparison with deletion and resume but does not explicitly name alternatives or state when not to use it.

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

• vcluster_resumeA
  4.3/5.0
  Behavior3/5

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

  With no annotations, the description must carry the full behavioral burden. It states the effect ('restoring its operation and allowing workloads to run again') and returns a CommandResult or error, but it does not disclose prerequisites beyond 'previously paused', potential side effects if already running, or idempotency behavior. This is basic transparency but lacks deeper context.

  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 concise and well-structured, with clear Args and Returns sections. It front-loads the purpose, avoids redundant phrasing, and every sentence provides necessary information without waste.

  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 straightforward tool with an output schema available, the description covers the essential aspects: purpose, parameters, and return type. It could be more complete by addressing edge cases (e.g., resuming an already-running vcluster), but overall it provides sufficient context for an agent to invoke the tool correctly.

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

  Parameters5/5

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

  The schema has 0% description coverage, but the description compensates thoroughly by explaining each parameter: name is required, namespace defaults to the vcluster name, and kubeconfig_path defaults to the environment kubeconfig. This adds valuable meaning beyond the schema's minimal 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 uses a specific verb ('Resume') and clearly identifies the resource ('vcluster'), explicitly contrasting with the paused state. This distinguishes it from sibling tools such as vcluster_pause and vcluster_create, making the tool's function unambiguous.

  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 implies the tool should be used when a vcluster is paused, which provides clear context. However, it does not explicitly mention when not to use it or name alternative tools (e.g., vcluster_delete if the vcluster should be removed instead), leaving a slight gap in exclusion guidance.

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

• delete_namespace_labelA
  4.4/5.0
  Behavior4/5

  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 explicitly notes that deleting a non-existent label is treated as success, and describes the return type (bool or error). It also explains fallback behavior for kubeconfig. Missing details like permissions, but core behavior is well covered.

  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?

  The description is well-structured with Args and Returns sections, using concise sentences. It is somewhat more verbose than strictly necessary, but every sentence adds value, and the format aids readability.

  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 relatively simple tool with 3 parameters and an output schema, the description covers the operation, edge case behavior, and parameter defaults. It doesn't provide exhaustive Kubernetes details, but it is sufficiently complete for an agent to select and invoke it correctly.

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

  Parameters5/5

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

  Schema description coverage is 0%, so the description must compensate. It explains each parameter meaningfully: namespace (target), key (label key), and kubeconfig_path (optional, with default behavior). This fully covers the semantics of all three 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 starts with 'Delete a label from a namespace,' a specific verb and resource that clearly distinguishes this from sibling tools like set_namespace_label or delete_namespace_annotation. The purpose is unambiguous.

  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 intended use is implied clearly by the description—removing a label from a namespace. Sibling tool names provide further context. No explicit exclusions or alternative references are given, but the context is clear enough for selection.

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

• get_namespace_annotationsA
  4.4/5.0
  Behavior4/5

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

  With no annotations provided, the description carries behavioral burden. It discloses return type ('Dictionary of annotations on success, or error object') and optional kubeconfig behavior, though it doesn't explicitly state that the operation is non-destructive or mention permission requirements.

  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?

  Structured docstring with a short first sentence, context paragraph, and Args/Returns sections. Each sentence adds value; no filler.

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

  Completeness5/5

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

  For a simple read operation, the description covers purpose, parameter semantics, and return behavior. It's complete given the low complexity and presence of a described output.

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

  Parameters5/5

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

  Schema coverage is 0%, but the Args section fully describes both parameters: namespace as the required name, and kubeconfig_path as an optional path defaulting to the environment kubeconfig. This compensates for the lack of schema descriptions.

  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?

  Description opens with 'Get annotations for a specific namespace' and clarifies it retrieves all annotations, distinguishing it from sibling tools like get_namespace_labels and set_namespace_annotation. The verb and resource are specific.

  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?

  No explicit when/when-not guidance is provided; the description only implies usage by contrasting annotations with labels. It doesn't name alternatives like get_namespace_labels.

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

• set_namespace_annotationA
  4.4/5.0
  Behavior4/5

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

  With no annotations provided, the description carries the full burden. It discloses that it creates/updates annotations, explains the kubeconfig fallback behavior, and states the return type (True on success or an error object). It doesn't mention permissions or idempotency, but the information given is sufficient for a simple 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.

  Conciseness4/5

  Is the description appropriately sized, front-loaded, and free of redundancy?

  The description is well-structured with a clear main sentence, a brief explanation of annotations, an Args list, and a Returns note. It is slightly verbose with the generic definition of annotations, but every element earns its place and the key information is front-loaded.

  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?

  The description covers the tool's purpose, parameters, kubeconfig behavior, and return value. It does not specify error object details or whether the namespace must exist, but the output schema and simplicity of the operation make this acceptable. The description is complete enough for an agent to invoke the tool correctly.

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

  Parameters5/5

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

  Schema description coverage is 0%, but the description compensates fully with an Args section that explains each parameter: namespace, key, value, and kubeconfig_path. This adds significant meaning beyond the schema's bare type/required definitions.

  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 states 'Create or update an annotation on a namespace' with a specific verb and resource. It distinguishes itself from sibling tools like get_namespace_annotations and set_namespace_label by focusing on annotation write operations for namespaces.

  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 clearly indicates the operation is for creating or updating namespace annotations, which implies when to use it. It doesn't explicitly mention alternatives or exclusions, but the context is obvious given the sibling tools (get/delete annotations). The lack of explicit when-not guidance slightly lowers the score.

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

• vcluster_deleteA
  4.4/5.0
  Behavior4/5

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

  No annotations are provided, so the description carries the full burden. It discloses the irreversible nature, permanent removal of resources, and default behavior for namespace and kubeconfig_path. However, the phrase 'optionally its namespace' is ambiguous—it doesn't clarify exactly when the namespace gets deleted, since there is no explicit boolean parameter controlling this.

  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 well-structured, starting with a clear summary, then detailed parameter explanations, and a return specification. Every sentence adds useful information without unnecessary fluff, making it concise yet comprehensive.

  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 that an output schema exists and there are only 3 parameters, the description covers the key aspects: operation, irreversibility, parameter defaults, and return type. It lacks explicit details about the namespace deletion trigger and whether the operation is synchronous, but these are minor omissions.

  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?

  Schema description coverage is 0%, so the description is essential and compensates well. It explains each parameter's purpose, including defaults (namespace defaults to the vcluster name, kubeconfig_path defaults to the environment kubeconfig). The only minor gap is the unclear relationship between the namespace parameter and whether deletion of the namespace is conditional.

  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 'Delete a vcluster' and expands on the operation, specifying it deletes the vcluster and optionally its namespace. This distinguishes it from sibling tools like vcluster_pause, vcluster_resume, and vcluster_list, which serve different lifecycle operations.

  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 clearly communicates that this tool is for permanent deletion, with an explicit warning that the action is irreversible. It does not name alternatives (e.g., vcluster_pause) for non-destructive suspension, but the context makes it obvious when to use this tool versus others.

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

• vcluster_describeA
  4.4/5.0
  Behavior4/5

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

  With no annotations provided, the description carries the transparency burden. It discloses that information is returned as serialized JSON on success or an error object on failure, and details what info is included (status, resources, configuration). While not explicitly saying it is read-only, the verb 'describe' implies no mutation, and the return/error behavior is adequately disclosed.

  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?

  The description is front-loaded with the core purpose, then a slight elaboration, followed by a structured Args list and Returns note. It is somewhat verbose, but every sentence adds value (what info is retrieved, parameter defaults, failure behavior). It is appropriately sized for a tool with three parameters.

  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 describe tool with an output schema available (as indicated by context signals), the description covers the essential aspects: purpose, parameter defaults, and error behavior. It does not explain prerequisites like cluster access, but for this simple read operation the coverage is adequate and complete enough for an agent to select and invoke it correctly.

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

  Parameters5/5

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

  Schema description coverage is 0%, but the description's Args section fully compensates: it explains the name parameter, states namespace is optional with a default to the vcluster name, and clarifies kubeconfig_path falls back to the environment default. This adds meaningful semantics beyond the bare schema types and titles.

  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 function: 'Describe a specific vcluster in detail.' It specifies the resource (vcluster), the granularity (specific, not listing all), and the kind of information (status, resources, configuration). This distinguishes it from sibling tools like vcluster_list and vcluster_create.

  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 clearly indicates when to use it: when you need detailed information about a single vcluster. It mentions optional namespace behavior and kubeconfig defaults, which helps in practical usage. However, it does not explicitly state when not to use it or name alternatives like vcluster_list for listing all clusters.

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

• vcluster_callA
  4.6/5.0
  Behavior4/5

  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 explains that the tool connects to a running vcluster, uses the server-side flag, and returns a CommandResult with exit code and output, or an error object. It also covers default namespace and kubeconfig behavior, providing useful operational context, though it could mention permission requirements or side effects more explicitly.

  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 well-structured and appropriately sized: a one-sentence summary, a brief mechanism explanation, then Args and Returns sections. Every sentence contributes value, and it is front-loaded with the primary purpose. No redundancy or unnecessary fluff.

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

  Completeness5/5

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

  Given the tool's complexity (executing arbitrary commands inside a vcluster) and the presence of an output schema, the description covers all essential aspects: connection method, parameters, defaults, and return behavior (success vs. failure). It is complete enough for an agent to invoke the tool correctly without additional information.

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

  Parameters5/5

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

  Schema description coverage is 0%, but the description fully compensates by explaining each parameter in detail: name, command (including quoting example), optional namespace with default vcluster-<name>, and optional kubeconfig_path with environment fallback. This adds substantial meaning beyond the bare schema property names and types.

  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 explicitly states 'Execute a command inside a vcluster' with a specific verb and resource. It clearly distinguishes this tool from sibling tools like vcluster_describe or vcluster_pause by focusing on command execution within the virtual cluster, and further details the mechanism using 'vcluster connect'.

  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 on when to use this tool: to run commands inside a vcluster. It does not explicitly list alternatives or exclusions, but the purpose is distinct enough from siblings. The Args and Returns sections also set expectations for usage, making it easy for an agent to decide when to invoke it.

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