# update_workout_set

Update an existing set on a workout.

Agent View of the PolicyLayer registry record for `update_workout_set`. HTML page: https://policylayer.com/tools/app-businys-mcp-server/update-workout-set

## Facts

- Tool: `update_workout_set`
- Server: Businys (`@businys/mcp-server`) — https://policylayer.com/tools/app-businys-mcp-server.md
- Install: `npx -y @businys/mcp-server`
- Homepage: https://github.com/hiatys/businys-mcp
- Risk category: Write (Medium risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Rate-limited

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "update_workout_set",
    "arguments": {}
  }
}
```

## Why update_workout_set is rated Medium

This tool modifies workout data (a set within a workout) but does not delete or irreversibly destroy data. The change is reversible through subsequent updates. While it affects user-facing fitness tracking data, the blast radius is limited to individual workout records.

From the tool's own definition: "Tool name 'update_workout_set' and description 'Update an existing set on a workout' indicate modification of existing data."

## Use case

AI agents use update_workout_set to create or update resources in Businys, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Businys environment.

## Recommended policy (PolicyLayer)

Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Businys:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "update_workout_set": {
      "limits": [
        {
          "counter": "update_workout_set_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}
```

## Other tools on Businys (247)

- `archive_contract` — Destructive — https://policylayer.com/tools/app-businys-mcp-server/archive-contract.md
- `archive_invoice` — Destructive — https://policylayer.com/tools/app-businys-mcp-server/archive-invoice.md
- `cancel_booking` — Destructive — https://policylayer.com/tools/app-businys-mcp-server/cancel-booking.md
- `cancel_invitation` — Destructive — https://policylayer.com/tools/app-businys-mcp-server/cancel-invitation.md
- `delete_account` — Destructive — https://policylayer.com/tools/app-businys-mcp-server/delete-account.md
- `delete_asset` — Destructive — https://policylayer.com/tools/app-businys-mcp-server/delete-asset.md
- `delete_automation` — Destructive — https://policylayer.com/tools/app-businys-mcp-server/delete-automation.md
- `delete_blackout` — Destructive — https://policylayer.com/tools/app-businys-mcp-server/delete-blackout.md
- `delete_exercise` — Destructive — https://policylayer.com/tools/app-businys-mcp-server/delete-exercise.md
- `delete_gear_item` — Destructive — https://policylayer.com/tools/app-businys-mcp-server/delete-gear-item.md
- `delete_goal` — Destructive — https://policylayer.com/tools/app-businys-mcp-server/delete-goal.md
- `delete_measurement` — Destructive — https://policylayer.com/tools/app-businys-mcp-server/delete-measurement.md
- `delete_personal_record` — Destructive — https://policylayer.com/tools/app-businys-mcp-server/delete-personal-record.md
- `delete_program` — Destructive — https://policylayer.com/tools/app-businys-mcp-server/delete-program.md
- `delete_sub_profile` — Destructive — https://policylayer.com/tools/app-businys-mcp-server/delete-sub-profile.md
- `delete_workout` — Destructive — https://policylayer.com/tools/app-businys-mcp-server/delete-workout.md
- `delete_workout_set` — Destructive — https://policylayer.com/tools/app-businys-mcp-server/delete-workout-set.md
- `remove_member` — Destructive — https://policylayer.com/tools/app-businys-mcp-server/remove-member.md
- `revoke_api_key` — Destructive — https://policylayer.com/tools/app-businys-mcp-server/revoke-api-key.md
- `revoke_portal_access` — Destructive — https://policylayer.com/tools/app-businys-mcp-server/revoke-portal-access.md
- `skip_nurture` — Destructive — https://policylayer.com/tools/app-businys-mcp-server/skip-nurture.md
- `create_automation` — Execute — https://policylayer.com/tools/app-businys-mcp-server/create-automation.md
- `switch_organization` — Execute — https://policylayer.com/tools/app-businys-mcp-server/switch-organization.md
- `cancel_recurring_billing` — Financial — https://policylayer.com/tools/app-businys-mcp-server/cancel-recurring-billing.md
- `create_credit_pack` — Financial — https://policylayer.com/tools/app-businys-mcp-server/create-credit-pack.md
- `create_deposit_invoice` — Financial — https://policylayer.com/tools/app-businys-mcp-server/create-deposit-invoice.md
- `create_recurring_billing` — Financial — https://policylayer.com/tools/app-businys-mcp-server/create-recurring-billing.md
- `deduct_credit` — Financial — https://policylayer.com/tools/app-businys-mcp-server/deduct-credit.md
- `forfeit_deposit` — Financial — https://policylayer.com/tools/app-businys-mcp-server/forfeit-deposit.md
- `pause_recurring_billing` — Financial — https://policylayer.com/tools/app-businys-mcp-server/pause-recurring-billing.md
- …and 217 more: https://policylayer.com/tools/app-businys-mcp-server.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=app-businys-mcp-server · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/app-businys-mcp-server