Calculate Tiered Fee

finance.tiered_fee

ProductionBounded custom (Class B)Deterministicstrictfastv1.0.0

No network

Overview

Apply a progressive or cliff tier schedule to one non-negative decimal base with deterministic ordered segment receipts and no hidden rounding or inferred boundaries.

We provide reproducible fee segmentation rather than prompt arithmetic.

Reliability

FEE_INPUT_INVALID and ITEM_LIMIT_EXCEEDED identify exact repair classes.

Context footprint

One call returns the total and compact segment proof. A successful call costs 1 execution credit.

When to use it

Use this when you have one complete explicit tier schedule.

Avoid this when schedule terms are missing.

Scope

Note

Apply one explicit bounded progressive or cliff fee schedule and return the ordered segment audit receipt without currency conversion, rounding, or schedule inference.

Non-goals

Does not infer or persist fee schedules.
Does not round currency amounts.

Properties

IdempotentRetry safeStreaming supportedFile input supportedRequires external service

Capabilities

math

Cost & billing

Flat rate per invocation

MetercallsBillable onsuccessCost per call1 credit

File handling

Accepts file_refProduces file_refMax input64 KB

How we handle your data

Sensitive input, safe output

What this means

This skill may receive sensitive content, but it does not target sensitive data and returns only a structured non-sensitive result.

Squillify guarantees

Runs inside Squillify
This skill runs inside Squillify.
Payloads are not sent to an external service by this skill.
Squillify does not permanently store submitted payloads.
Telemetry records metadata only, not submitted content.
Submitted payloads are not used for training.
Submitted payloads are not reviewed by humans.
This skill does not target sensitive data.
The response does not contain submitted content.

Your responsibility

Squillify does not determine whether submitted content is sensitive. Your application is responsible for deciding what data it is allowed to submit. Your application is responsible for securing the response.

Read the Microskill Data Handling Policy

Input schema

Field	Type	Required	Description
base	string	Yes	Non-negative plain decimal base the schedule is applied to.
tiers	array	Yes	Ordered 1 through 100 closed tier objects {upTo?,rate}; only the final upTo may be omitted.
tierMode	string	Yes	Whether each band is charged progressively or the whole base uses the selected cliff tier.

Output schema

Field	Type	Required	Description
feeAmount	string	Yes	Normalized plain-decimal sum of every ordered segment fee without implicit rounding.
segments	array	Yes	Ordered array of closed segment objects {from,to?,rate,appliedBase,fee}; to is omitted only for the open final tier.
tierMode	string	Yes	Selected tier mode repeated in the receipt so fee segmentation remains independently auditable.

API contract

POST /v1/execute

curl

curl -sS -X POST "$BASE/v1/execute" -H "Authorization: Bearer $KEY" -H 'Content-Type: application/json' -d '{"skillKey":"finance.tiered_fee","input":{"base":"150","tiers":[{"upTo":"100","rate":"0.01"},{"rate":"0.02"}],"tierMode":"PROGRESSIVE"}}'

Integrations

TypeScript SDK

import { Squillify } from "@squillify/sdk";

const sq = new Squillify({ apiKey: process.env.SQUILLIFY_API_KEY });

const { output } = await sq.execute("finance.tiered_fee", {"base":"150","tierMode":"PROGRESSIVE","tiers":[{"upTo":"100","rate":"0.01"},{"rate":"0.02"}]});

Errors

Code	HTTP	Retryable	Description
VALIDATION_ERROR	400	No	The request payload failed schema validation.
UNAUTHORIZED	401	No	Missing or invalid API key.
SKILL_NOT_ACCESSIBLE	403	No	The API key is not granted access to this skill.
SKILL_NOT_AVAILABLE_FOR_PLAN	403	No	This skill is not included in your current plan.
PLAN_ELIGIBILITY_UNAVAILABLE	503	Yes	Plan eligibility could not be decided. Retry after backoff.
SKILL_NOT_FOUND	404	No	The requested skill or version does not exist.
TENANT_RATE_LIMITED	429	Yes	Request rate limit exceeded. Retry after backoff.
QUOTA_EXCEEDED	429	Yes	Plan quota exhausted. Retryable once the quota period resets.
EXECUTION_TIMEOUT	504	Yes	Execution exceeded the allowed time budget.
FEE_INPUT_INVALID	400	No	The request payload failed this skill's input validation.
ITEM_LIMIT_EXCEEDED	429	No	A size, quota, rate, or time limit was exceeded.

Other limits

Limit	Value
Recommended inline bytes	32 KiB

Limitations

Does not infer or persist fee schedules.
Does not round currency amounts.
Unbounded or implicit schedules.

How to call

POST /v1/execute (requires authentication)

Request bodyjson

{
  "skillKey": "finance.tiered_fee",
  "input": {
    "base": "150",
    "tierMode": "PROGRESSIVE",
    "tiers": [
      {
        "upTo": "100",
        "rate": "0.01"
      },
      {
        "rate": "0.02"
      }
    ]
  }
}

Examples

Progressive management fee

Inputjson

{
  "base": "150",
  "tierMode": "PROGRESSIVE",
  "tiers": [
    {
      "upTo": "100",
      "rate": "0.01"
    },
    {
      "rate": "0.02"
    }
  ]
}

Expected outputjson

{
  "tierMode": "PROGRESSIVE",
  "feeAmount": "2",
  "segments": [
    {
      "from": "0",
      "to": "100",
      "rate": "0.01",
      "appliedBase": "100",
      "fee": "1"
    },
    {
      "from": "100",
      "rate": "0.02",
      "appliedBase": "50",
      "fee": "1"
    }
  ]
}

Tip

100 at one percent and 50 at two percent.

Cliff management fee