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Heartran

Kanka MCP Server

by Heartran
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JavaScript
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list_characters

List characters in a Kanka campaign with pagination, optional entry text, and filters for empty or filled entries to keep responses manageable.

Instructions

List characters. Use per_page to keep responses small enough to be returned whole, and entry_filter to return only records whose entry is empty or filled.

Input Schema

NameRequiredDescriptionDefault
pageNoPage number (default 1).
entriesNoInclude full entry/entry_parsed text (default true). Set false to omit the long entry fields, shrink the response, and get a has_entry boolean per record instead.
per_pageNoRecords per page, 1-100. Enforced by this server, so it holds even when the Kanka API returns a different page size. Omit to return the API's own page untouched; when set (or when entry_filter is used) the default is 25 with entries, 100 without.
campaignIdYes
entry_filterNoKeep only records with an empty entry ('empty'), only records with text ('filled'), or all of them ('all', default). Filtering is applied across the whole collection, not just one API page.

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed4 schema fields changedv2.2.0
    • addedInput schema / properties / entries
      Added value: +{
+  "description": "Include full entry/entry_parsed text (default true). Set false to omit the long entry fields, shrink the response, and get a has_entry boolean per record instead.",
+  "type": "boolean"
+}
    • addedInput schema / properties / entry_filter
      Added value: +{
+  "description": "Keep only records with an empty entry ('empty'), only records with text ('filled'), or all of them ('all', default). Filtering is applied across the whole collection, not just one API page.",
+  "enum": [
+    "all",
+    "empty",
+    "filled"
+  ],
+  "type": "string"
+}
    • addedInput schema / properties / page / description
      Added value: +"Page number (default 1)."
    • addedInput schema / properties / per_page
      Added value: +{
+  "description": "Records per page, 1-100. Enforced by this server, so it holds even when the Kanka API returns a different page size. Omit to return the API's own page untouched; when set (or when entry_filter is used) the default is 25 with entries, 100 without.",
+  "maximum": 100,
+  "minimum": 1,
+  "type": "number"
+}
  2. First observedv2.1.1

TDQS

A3.5/5.0
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 disclosure burden. It adds useful behavioral context about response size and whole-response return, but it does not state read-only semantics, permission requirements, pagination behavior, or return shape. For a read-oriented list tool this is adequate but incomplete.

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 short sentences, front-loads the core purpose, and uses the second sentence for practical parameter guidance. There is no filler, and every sentence contributes to correct invocation.

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

Completeness3/5

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

The tool has five parameters, no annotations, and no output schema, but only the per_page and entry_filter behavior are discussed in the description. The schema covers most other parameters, but the required campaignId has no description anywhere, and the return format is not explained. The definition is minimally sufficient but not 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?

Schema description coverage is 80%, so the schema already does most parameter documentation. The description highlights per_page and entry_filter, but mostly repeats what the schema says and adds little meaning beyond the existing descriptions. CampaignId, page, and entries remain undocumented in the description.

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 opens with a specific verb and resource: 'List characters.' That makes the core operation immediately clear and distinguishes it from get_character. It does not, however, mention campaign scoping or contrast with search/list alternatives, so it stops short of the strongest sibling differentiation.

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 gives concrete guidance for two parameters: use per_page to keep responses returnable whole, and entry_filter to narrow records by entry state. It does not say when to use this tool instead of get_character, search, or other list tools, so usage is implied rather than fully framed.

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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