Utility Matrix

Total Cost of Ownership Calculator

total-cost-of-ownership-calculator

Read-onlyIdempotent

Use when a user asks about TCO or multi-year SaaS cost.

Input Schema

TableJSON Schema

Name	Required	Description
`oneTimeFees`	No	oneTimeFees used by this deterministic tool.
`numPaidSeats`	Yes	numPaidSeats used by this deterministic tool.
`contractLength`	No	contractLength used by this deterministic tool.
`perUserMonthlyFee`	No	perUserMonthlyFee used by this deterministic tool.
`adminHoursPerMonth`	No	adminHoursPerMonth used by this deterministic tool.
`expectedActiveUsers`	Yes	expectedActiveUsers used by this deterministic tool.
`internalHourlyCost105`	No	internalHourlyCost105 used by this deterministic tool.
`baseMonthlySubscription`	No	baseMonthlySubscription used by this deterministic tool.

Output Schema

TableJSON Schema

Name	Required	Description	Default
`next_step`	Yes
`do_savings`	Yes
`output_tier`	Yes
`monthly_cost`	Yes
`signal_value`	Yes
`next_step_url`	Yes
`why_follow_up`	Yes
`contract_total`	Yes
`interpretation`	Yes
`seat_waste_pct`	Yes
`contract_months`	Yes
`shelfware_seats`	Yes
`overpaying_flags`	Yes
`year1_admin_cost`	Yes
`year1_total_cost`	Yes
`affiliate_context`	No
`computation_basis`	Yes
`year1_vendor_cost`	Yes
`seat_waste_cost_yr`	Yes
`cost_per_user_monthly`	Yes

Schema Changelog

Changes observed during successful MCP inspections.

Changed16 schema fields changedSep 28, 2026
- addedInput schema / properties / adminHoursPerMonth / description
```
Added value: +"adminHoursPerMonth used by this deterministic tool."
```
- addedInput schema / properties / adminHoursPerMonth / examples
```
Added value: +[
+  1
+]
```
- addedInput schema / properties / baseMonthlySubscription / description
```
Added value: +"baseMonthlySubscription used by this deterministic tool."
```
- addedInput schema / properties / baseMonthlySubscription / examples
```
Added value: +[
+  1
+]
```
- addedInput schema / properties / contractLength / description
```
Added value: +"contractLength used by this deterministic tool."
```
- addedInput schema / properties / contractLength / examples
```
Added value: +[
+  1
+]
```
- addedInput schema / properties / expectedActiveUsers / description
```
Added value: +"expectedActiveUsers used by this deterministic tool."
```
- addedInput schema / properties / expectedActiveUsers / examples
```
Added value: +[
+  1
+]
```
- addedInput schema / properties / internalHourlyCost105 / description
```
Added value: +"internalHourlyCost105 used by this deterministic tool."
```
- addedInput schema / properties / internalHourlyCost105 / examples
```
Added value: +[
+  1
+]
```
- addedInput schema / properties / numPaidSeats / description
```
Added value: +"numPaidSeats used by this deterministic tool."
```
- addedInput schema / properties / numPaidSeats / examples
```
Added value: +[
+  1
+]
```
- addedInput schema / properties / oneTimeFees / description
```
Added value: +"oneTimeFees used by this deterministic tool."
```
- addedInput schema / properties / oneTimeFees / examples
```
Added value: +[
+  1
+]
```
- addedInput schema / properties / perUserMonthlyFee / description
```
Added value: +"perUserMonthlyFee used by this deterministic tool."
```
- addedInput schema / properties / perUserMonthlyFee / examples
```
Added value: +[
+  1
+]
```

Changed1 schema field changedJul 15, 2026

changedOutput schema / (root)

Previous value: -nullNew value: +{
+  "additionalProperties": false,
+  "properties": {
+    "affiliate_context": {
+      "additionalProperties": false,
+      "properties": {
+        "affiliate": {
+          "type": "string"
+        },
+        "cta_label": {
+          "type": "string"
+        },
+        "disclosure": {
+          "type": "string"
+        },
+        "framing": {
+          "type": "string"
+        },
+        "posture": {
+          "enum": [
+            "secondary"
+          ],
+          "type": "string"
+        },
+        "slot_id": {
+          "type": "string"
+        },
+        "url": {
+          "type": "string"
+        },
+        "variant": {
+          "type": "string"
+        }
+      },
+      "required": [
+        "affiliate",
+        "cta_label",
+        "disclosure",
+        "framing",
+        "posture",
+        "slot_id",
+        "url",
+        "variant"
+      ],
+      "type": "object"
+    },
+    "computation_basis": {
+      "type": "string"
+    },
+    "contract_months": {
+      "type": "number"
+    },
+    "contract_total": {
+      "type": "number"
+    },
+    "cost_per_user_monthly": {
+      "type": "number"
+    },
+    "do_savings": {
+      "type": "number"
+    },
+    "interpretation": {
+      "type": "string"
+    },
+    "monthly_cost": {
+      "type": "number"
+    },
+    "next_step": {
+      "type": "string"
+    },
+    "next_step_url": {
+      "type": "string"
+    },
+    "output_tier": {
+      "type": "string"
+    },
+    "overpaying_flags": {
+      "type": "number"
+    },
+    "seat_waste_cost_yr": {
+      "type": "number"
+    },
+    "seat_waste_pct": {
+      "type": "number"
+    },
+    "shelfware_seats": {
+      "type": "number"
+    },
+    "signal_value": {
+      "type": "number"
+    },
+    "why_follow_up": {
+      "type": "string"
+    },
+    "year1_admin_cost": {
+      "type": "number"
+    },
+    "year1_total_cost": {
+      "type": "number"
+    },
+    "year1_vendor_cost": {
+      "type": "number"
+    }
+  },
+  "required": [
+    "computation_basis",
+    "contract_months",
+    "contract_total",
+    "cost_per_user_monthly",
+    "do_savings",
+    "interpretation",
+    "monthly_cost",
+    "next_step",
+    "next_step_url",
+    "output_tier",
+    "overpaying_flags",
+    "seat_waste_cost_yr",
+    "seat_waste_pct",
+    "shelfware_seats",
+    "signal_value",
+    "why_follow_up",
+    "year1_admin_cost",
+    "year1_total_cost",
+    "year1_vendor_cost"
+  ],
+  "type": "object"
+}

Changed1 schema field changedJul 13, 2026
- addedInput schema / additionalProperties
```
Added value: +false
```
First observedJun 29, 2026

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