# delete_exercise

Delete a custom exercise. Seed exercises cannot be deleted.

Agent View of the PolicyLayer registry record for `delete_exercise`. HTML page: https://policylayer.com/tools/app-businys-mcp-server/delete-exercise

## Facts

- Tool: `delete_exercise`
- 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: Destructive (Critical risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Hidden

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

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

## Why delete_exercise is rated Critical

This tool permanently removes exercise data with no undo mechanism. While the blast radius is somewhat limited to a single user's custom exercises (not seed/system exercises), the action is irreversible and constitutes data destruction. Severity is high rather than critical because the impact is scoped to exercise records rather than financial data or critical business information.

From the tool's own definition: "Tool name is 'delete_exercise' and description states 'Delete a custom exercise.' The verb 'delete' indicates irreversible removal of data."

## Use case

AI agents call delete_exercise to permanently remove resources in Businys, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.

## Recommended policy (PolicyLayer)

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

```json
{
  "version": "1",
  "default": "deny",
  "hide": [
    "delete_exercise"
  ]
}
```

## 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_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
- `process_refund` — Financial — https://policylayer.com/tools/app-businys-mcp-server/process-refund.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`

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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