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Heartran

Kanka MCP Server

by Heartran
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list_events

Retrieve campaign events with pagination and entry filters to control response size and return only records with empty or filled entries.

Instructions

List events. 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?

With no annotations, the description carries the full burden, and it does disclose one genuinely useful behavior: responses may not be returnable whole, motivating per_page. It omits other important traits — that campaignId is required for scoping, whether pagination metadata is returned, and what happens on out-of-range pages.

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 short sentences, front-loaded with the operation and followed by the two highest-value parameter hints. No filler, no restatement of the title, nothing that could be cut without losing information.

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?

For a five-parameter list tool with no annotations and no output schema, the description covers only the response-size and filtering story. An agent still lacks the campaign scoping requirement, the shape of the returned records, and pagination behavior — gaps the schema does not fill either.

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 coverage is 80%, so the baseline is 3 and the schema already explains page, entries, per_page and entry_filter in detail. The description adds only the rationale for per_page (keeping responses whole) and a partial restatement of entry_filter; campaignId, the one required parameter, remains undocumented in both places.

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 ("List events") that an agent can map directly to the operation, and pairs it with the two parameters that most affect the result. It does not, however, distinguish this from sibling readers such as get_event or search, nor does it say what an event record contains.

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 operational advice on when to set per_page and entry_filter, but it never addresses the larger routing question: when to call list_events versus get_event for a single record, search for cross-entity lookup, or the other list_* tools. Usage is implied by the parameter hints rather than stated as a selection rule.

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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