Solana Audit Validator Vote Accounts and Inflation Rewards

arazzo: 1.0.1
info:
  title: Solana Audit Validator Vote Accounts and Inflation Rewards
  summary: Read the current epoch, list current and delinquent vote accounts, and resolve inflation rewards.
  description: >-
    The staking oversight path for anyone running or delegating to a validator.
    The workflow reads the current epoch, lists the cluster's vote accounts
    split into current and delinquent sets, resolves the inflation rewards paid
    to the supplied addresses for a completed epoch, and reads the current
    inflation rate so a reward can be judged against the network-wide baseline.
    Rewards can only be queried for an epoch that has already finished, so the
    epoch input should trail the current one. Every step spells out its JSON-RPC
    request inline so the flow can be read and executed without opening the
    underlying OpenAPI description.
  version: 1.0.0
sourceDescriptions:
- name: solanaRpcApi
  url: ../openapi/solana-rpc-api-openapi.yml
  type: openapi
workflows:
- workflowId: validator-rewards
  summary: Check validator vote health and the inflation rewards paid to addresses.
  description: >-
    Combines vote-account standing with per-address inflation rewards for a
    completed epoch.
  inputs:
    type: object
    required:
    - addresses
    - rewardEpoch
    properties:
      addresses:
        type: array
        description: >-
          Base58-encoded vote or stake account addresses to resolve rewards for.
        items:
          type: string
      rewardEpoch:
        type: integer
        description: >-
          A completed epoch to read rewards for. Must be earlier than the
          current epoch.
  steps:
  - stepId: epochInfo
    description: >-
      Read the current epoch so the caller can confirm the requested reward
      epoch has actually completed.
    operationId: getEpochInfo
    requestBody:
      contentType: application/json
      payload:
        jsonrpc: "2.0"
        id: 1
        method: getEpochInfo
        params: []
    successCriteria:
    - condition: $statusCode == 200
    - context: $response.body
      condition: $.result
      type: jsonpath
    outputs:
      currentEpoch: $response.body#/result/epoch
      absoluteSlot: $response.body#/result/absoluteSlot
      slotIndex: $response.body#/result/slotIndex
      slotsInEpoch: $response.body#/result/slotsInEpoch
  - stepId: voteAccounts
    description: >-
      List the cluster's vote accounts at finality, split into validators voting
      normally and validators the cluster considers delinquent. A stake account
      delegated to a delinquent validator stops earning.
    operationId: getVoteAccounts
    requestBody:
      contentType: application/json
      payload:
        jsonrpc: "2.0"
        id: 1
        method: getVoteAccounts
        params:
        - commitment: finalized
    successCriteria:
    - condition: $statusCode == 200
    - context: $response.body
      condition: $.result
      type: jsonpath
    outputs:
      current: $response.body#/result/current
      delinquent: $response.body#/result/delinquent
      topCurrentVotePubkey: $response.body#/result/current/0/votePubkey
      topCurrentActivatedStake: $response.body#/result/current/0/activatedStake
  - stepId: inflationRewards
    description: >-
      Resolve the inflation rewards credited to the supplied addresses for the
      completed epoch, including the amount, the commission the validator took,
      and the resulting balance.
    operationId: getInflationReward
    requestBody:
      contentType: application/json
      payload:
        jsonrpc: "2.0"
        id: 1
        method: getInflationReward
        params:
        - $inputs.addresses
        - epoch: $inputs.rewardEpoch
    successCriteria:
    - condition: $statusCode == 200
    - context: $response.body
      condition: $.result
      type: jsonpath
    outputs:
      rewards: $response.body#/result
      firstRewardAmount: $response.body#/result/0/amount
      firstRewardEpoch: $response.body#/result/0/epoch
      firstRewardCommission: $response.body#/result/0/commission
      firstRewardPostBalance: $response.body#/result/0/postBalance
  - stepId: inflationRate
    description: >-
      Read the network's current inflation split between validators and the
      foundation, the baseline any individual reward should be judged against.
    operationId: getInflationRate
    requestBody:
      contentType: application/json
      payload:
        jsonrpc: "2.0"
        id: 1
        method: getInflationRate
        params: []
    successCriteria:
    - condition: $statusCode == 200
    - context: $response.body
      condition: $.result
      type: jsonpath
    outputs:
      total: $response.body#/result/total
      validator: $response.body#/result/validator
      foundation: $response.body#/result/foundation
      rateEpoch: $response.body#/result/epoch
  outputs:
    currentEpoch: $steps.epochInfo.outputs.currentEpoch
    currentVoteAccounts: $steps.voteAccounts.outputs.current
    delinquentVoteAccounts: $steps.voteAccounts.outputs.delinquent
    rewards: $steps.inflationRewards.outputs.rewards
    validatorInflationRate: $steps.inflationRate.outputs.validator