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Infinite Audience

by io.github.no-fait
OverviewDiscussionsAdmin

Get Campaign

get_campaign
Read-onlyIdempotent

Retrieve customer-facing details for a campaign including its brief and linked audience summaries. Use when the user asks about a specific campaign or wants to see what audiences are in it. Linked segments are summaries; call get_segment with a segment ID to inspect its filter_groups definition. Requires 'discovery' scope.

Input Schema

NameRequiredDescriptionDefault
campaign_idYesThe campaign ID to retrieve

Output Schema

NameRequiredDescriptionDefault
idYes
nameYes
statusYes
guidanceNoInterpretation or recovery guidance for this result
audiencesYes
count_unitNo
page_countNoNumber of objects on this page, not the organization total
count_stateNoUnknown means no count; available does not guarantee freshness. Recount for a current value.
next_actionsNoSuggested next calls using returned IDs and available scopes. Not executed and not user consent.
money_displayNoCurrency amounts formatted once from source paths ending in _cents. Use verbatim; do not divide again. Null/missing source amounts are omitted, not zero.
population_inputNoPopulation input used for the preview; IDs refer to their current saved definitions

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed7 schema fields changed
    • addedOutput schema / properties / count_state
      Added value: +{
+  "description": "Unknown means no count; available does not guarantee freshness. Recount for a current value.",
+  "enum": [
+    "unknown",
+    "available"
+  ],
+  "type": "string"
+}
    • addedOutput schema / properties / count_unit
      Added value: +{
+  "const": "records",
+  "type": "string"
+}
    • addedOutput schema / properties / guidance
      Added value: +{
+  "description": "Interpretation or recovery guidance for this result",
+  "type": "string"
+}
    • addedOutput schema / properties / money_display
      Added value: +{
+  "additionalProperties": {
+    "type": "string"
+  },
+  "description": "Currency amounts formatted once from source paths ending in _cents. Use verbatim; do not divide again. Null/missing source amounts are omitted, not zero.",
+  "propertyNames": {
+    "type": "string"
+  },
+  "type": "object"
+}
    • addedOutput schema / properties / next_actions
      Added value: +{
+  "description": "Suggested next calls using returned IDs and available scopes. Not executed and not user consent.",
+  "items": {
+    "additionalProperties": false,
+    "properties": {
+      "arguments": {
+        "additionalProperties": {},
+        "propertyNames": {
+          "type": "string"
+        },
+        "type": "object"
+      },
+      "reason": {
+        "type": "string"
+      },
+      "tool": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "tool",
+      "arguments",
+      "reason"
+    ],
+    "type": "object"
+  },
+  "type": "array"
+}
    • addedOutput schema / properties / page_count
      Added value: +{
+  "description": "Number of objects on this page, not the organization total",
+  "maximum": 9007199254740991,
+  "minimum": -9007199254740991,
+  "type": "integer"
+}
    • addedOutput schema / properties / population_input
      Added value: +{
+  "additionalProperties": {},
+  "description": "Population input used for the preview; IDs refer to their current saved definitions",
+  "propertyNames": {
+    "type": "string"
+  },
+  "type": "object"
+}
  2. First observed

TDQS

A4.5/5.0
Behavior4/5

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

Annotations already declare readOnly/idempotent/non-destructive, but the description adds real value on top: the required 'discovery' scope and the caveat that linked segments are summaries rather than full definitions. It stops short of covering error behavior for a missing campaign_id, which keeps it from a 5.

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?

Three short sentences, front-loaded with the core purpose, then usage conditions, then the sibling handoff and scope requirement. No filler or redundancy.

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?

An output schema exists so return values need not be spelled out, yet the description still orients the agent to brief and audience content. Hot path, sibling escape hatch, and auth scope are all covered for a one-parameter read tool.

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 100% for the single campaign_id parameter, so the schema already carries the semantics. The description adds no format or sourcing hints for the ID beyond what the schema states, making the baseline 3 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?

Specific verb (retrieve) plus resource (campaign) plus the contents returned (brief and linked audience summaries). It is clearly distinguishable from list_campaigns, create_campaign, update_campaign, and from get_segment, which it explicitly routes to for deeper segment detail.

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?

States explicitly when to use it (user asks about a specific campaign or wants its audiences) and names the alternative tool with the condition that selects it: get_segment for filter_groups definitions. It also sets expectations that linked segments are only summaries.

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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