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dearlordylord

Huly MCP

by dearlordylord
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TypeScript

get_tool_schema

Read-onlyIdempotent

Retrieve the exact input and output schema for a Huly tool before invoking it. Clarify required arguments and result shape to avoid errors.

Instructions

Returns the exact input and output schema for one proxy-visible Huly tool. Use this before invoke_tool when you are not certain about required argument names or result shape.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
toolNameYesExact Huly tool name from search_tools or list_tool_categories results.

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes
warningsNoOptional agent-visible warnings about degraded result fidelity or important operational conditions. Omitted when there is nothing the agent needs to surface.

Schema Changelog

Changes observed during successful MCP inspections. Dates show when Glama detected each change.

  1. Changed18 schema fields changedv0.44.6
    • addedInput schema / $schema
      Added value: +"http://json-schema.org/draft-07/schema#"
    • removedOutput schema / $defs / NonEmptyTrimmedString
      Removed value: -{
-  "description": "a non empty string",
-  "minLength": 1,
-  "pattern": "^\\S[\\s\\S]*\\S$|^\\S$|^$",
-  "title": "nonEmptyString",
-  "type": "string"
-}
    • removedOutput schema / properties / result / properties / annotations / properties / title / $ref
      Removed value: -"#/$defs/NonEmptyTrimmedString"
    • addedOutput schema / properties / result / properties / annotations / properties / title / minLength
      Added value: +1
    • addedOutput schema / properties / result / properties / annotations / properties / title / pattern
      Added value: +"^\\S[\\s\\S]*\\S$|^\\S$|^$"
    • addedOutput schema / properties / result / properties / annotations / properties / title / type
      Added value: +"string"
    • removedOutput schema / properties / result / properties / annotations / required
      Removed value: -[]
    • removedOutput schema / properties / result / properties / category / $ref
      Removed value: -"#/$defs/ToolCategory"
    • addedOutput schema / properties / result / properties / category / allOf
      Added value: +[
+  {
+    "$ref": "#/$defs/ToolCategory"
+  }
+]
    • addedOutput schema / properties / result / properties / category / description
      Added value: +"MCP tool category used for toolset filtering and proxy discovery."
    • removedOutput schema / properties / result / properties / description / $ref
      Removed value: -"#/$defs/ToolDescription"
    • addedOutput schema / properties / result / properties / description / allOf
      Added value: +[
+  {
+    "$ref": "#/$defs/ToolDescription"
+  }
+]
    • addedOutput schema / properties / result / properties / description / description
      Added value: +"Human-readable MCP tool description."
    • removedOutput schema / properties / result / properties / inputSchema / title
      Removed value: -"unknown"
    • removedOutput schema / properties / result / properties / name / $ref
      Removed value: -"#/$defs/ToolName"
    • addedOutput schema / properties / result / properties / name / allOf
      Added value: +[
+  {
+    "$ref": "#/$defs/ToolName"
+  }
+]
    • addedOutput schema / properties / result / properties / name / description
      Added value: +"Exact MCP tool name registered by this server."
    • removedOutput schema / properties / result / properties / outputSchema / title
      Removed value: -"unknown"
  2. Changed1 schema field changedv0.44.5
    • changedOutput schema / properties / warnings / items / properties / code / enum
      Previous value: -[
-  "status_metadata_unresolved",
-  "space_role_assignments_degraded",
-  "message_template_metadata_degraded",
-  "viewlet_descriptor_metadata_degraded",
-  "space_preference_metadata_degraded",
-  "approval_request_person_metadata_degraded",
-  "approval_request_count_metadata_degraded",
-  "hosted_huly_shutdown",
-  "issue_label_metadata_degraded",
-  "issue_milestone_metadata_degraded",
-  "notification_metadata_degraded",
-  "card_version_metadata_degraded",
-  "issue_creator_metadata_degraded",
-  "recruiting_review_metadata_degraded",
-  "issue_relation_metadata_degraded",
-  "class_collaborator_metadata_degraded",
-  "external_channel_runtime_unsupported"
-]New value: +[
+  "status_metadata_unresolved",
+  "space_role_assignments_degraded",
+  "message_template_metadata_degraded",
+  "viewlet_descriptor_metadata_degraded",
+  "space_preference_metadata_degraded",
+  "approval_request_person_metadata_degraded",
+  "approval_request_count_metadata_degraded",
+  "hosted_huly_shutdown",
+  "issue_label_metadata_degraded",
+  "issue_milestone_metadata_degraded",
+  "notification_metadata_degraded",
+  "card_version_metadata_degraded",
+  "issue_creator_metadata_degraded",
+  "recruiting_review_metadata_degraded",
+  "issue_relation_metadata_degraded",
+  "class_collaborator_metadata_degraded",
+  "external_channel_runtime_unsupported",
+  "support_runtime_unsupported",
+  "support_status_metadata_degraded",
+  "workbench_navigation_metadata_degraded"
+]
  3. Changed1 schema field changedv0.44.4
    • changedOutput schema / properties / warnings / items / properties / code / enum
      Previous value: -[
-  "status_metadata_unresolved",
-  "space_role_assignments_degraded",
-  "message_template_metadata_degraded",
-  "viewlet_descriptor_metadata_degraded",
-  "space_preference_metadata_degraded",
-  "approval_request_person_metadata_degraded",
-  "approval_request_count_metadata_degraded",
-  "hosted_huly_shutdown",
-  "issue_label_metadata_degraded",
-  "issue_milestone_metadata_degraded",
-  "notification_metadata_degraded",
-  "card_version_metadata_degraded",
-  "issue_creator_metadata_degraded"
-]New value: +[
+  "status_metadata_unresolved",
+  "space_role_assignments_degraded",
+  "message_template_metadata_degraded",
+  "viewlet_descriptor_metadata_degraded",
+  "space_preference_metadata_degraded",
+  "approval_request_person_metadata_degraded",
+  "approval_request_count_metadata_degraded",
+  "hosted_huly_shutdown",
+  "issue_label_metadata_degraded",
+  "issue_milestone_metadata_degraded",
+  "notification_metadata_degraded",
+  "card_version_metadata_degraded",
+  "issue_creator_metadata_degraded",
+  "recruiting_review_metadata_degraded",
+  "issue_relation_metadata_degraded",
+  "class_collaborator_metadata_degraded",
+  "external_channel_runtime_unsupported"
+]
  4. Changed1 schema field changedv0.44.3
    • changedOutput schema / properties / warnings / items / properties / code / enum
      Previous value: -[
-  "status_metadata_unresolved",
-  "space_role_assignments_degraded",
-  "message_template_metadata_degraded",
-  "viewlet_descriptor_metadata_degraded",
-  "space_preference_metadata_degraded",
-  "approval_request_person_metadata_degraded",
-  "approval_request_count_metadata_degraded",
-  "hosted_huly_shutdown"
-]New value: +[
+  "status_metadata_unresolved",
+  "space_role_assignments_degraded",
+  "message_template_metadata_degraded",
+  "viewlet_descriptor_metadata_degraded",
+  "space_preference_metadata_degraded",
+  "approval_request_person_metadata_degraded",
+  "approval_request_count_metadata_degraded",
+  "hosted_huly_shutdown",
+  "issue_label_metadata_degraded",
+  "issue_milestone_metadata_degraded",
+  "notification_metadata_degraded",
+  "card_version_metadata_degraded",
+  "issue_creator_metadata_degraded"
+]
  5. Changed2 schema fields changedv0.44.2
    • changedOutput schema / properties / warnings / description
      Previous value: -"Optional agent-visible warnings about degraded result fidelity. Omitted when the server returned the documented happy-path payload."New value: +"Optional agent-visible warnings about degraded result fidelity or important operational conditions. Omitted when there is nothing the agent needs to surface."
    • changedOutput schema / properties / warnings / items / properties / code / enum
      Previous value: -[
-  "status_metadata_unresolved",
-  "space_role_assignments_degraded",
-  "message_template_metadata_degraded",
-  "viewlet_descriptor_metadata_degraded",
-  "space_preference_metadata_degraded",
-  "approval_request_person_metadata_degraded",
-  "approval_request_count_metadata_degraded"
-]New value: +[
+  "status_metadata_unresolved",
+  "space_role_assignments_degraded",
+  "message_template_metadata_degraded",
+  "viewlet_descriptor_metadata_degraded",
+  "space_preference_metadata_degraded",
+  "approval_request_person_metadata_degraded",
+  "approval_request_count_metadata_degraded",
+  "hosted_huly_shutdown"
+]
  6. Addedv0.44.0

TDQS

A4.5/5.0
Behavior4/5

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

Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false. The description adds context that the tool returns both input and output schemas and is scoped to proxy-visible tools, which provides value beyond the annotations. No contradiction exists.

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?

Two sentences that are front-loaded with the primary function and then give usage guidance. Every word contributes meaning, with no fluff or repetition.

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 one-parameter tool with a robust output schema and strong annotations, the description covers what is returned, when to use it, and where to get the parameter value. The output schema handles return structure, so the description is sufficiently complete.

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?

The input schema has 100% coverage with a well-described 'toolName' parameter that explains the source of the value. The description does not add additional parameter semantics beyond the schema, so the baseline score of 3 is appropriate.

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 the specific verb 'Returns' and explicitly names the resource 'exact input and output schema for one proxy-visible Huly tool.' It clearly distinguishes from siblings like search_tools (which discovers tools) and invoke_tool (which executes tools) by focusing on schema retrieval.

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

Usage Guidelines5/5

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

The description explicitly states 'Use this before invoke_tool when you are not certain about required argument names or result shape,' providing a direct when-to-use and naming the alternative workflow. This is clear usage guidance within the tool's context.

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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