# sign_contract Sign a contract as the photographer. Adds the photographer Agent View of the PolicyLayer registry record for `sign_contract`. HTML page: https://policylayer.com/tools/app-businys-mcp-server/sign-contract ## Facts - Tool: `sign_contract` - 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": "sign_contract", "arguments": {} } } ``` ## Why sign_contract is rated Medium Signing a contract creates a legally binding commitment on behalf of the user. While it is technically a write operation (adding a signature/record), it carries high severity because it creates legal obligations that may be difficult or impossible to reverse. It does not move money directly, so Financial is not the primary category, but misuse could lead to unintended legal agreements. From the tool's own definition: "'Sign a contract as the photographer. Adds the photographer'" ## Use case AI agents use sign_contract 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": { "sign_contract": { "limits": [ { "counter": "sign_contract_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