# prepend_app_code Prepends content to the beginning of app code. CRITICAL: Remember export rules: - NO IMPORTS - React is global - App entry file MUST end with: export default MyAppName; Use this tool when you need to: - Add constants or configuration at the start of the code - Add comments or documentation at the beginning - Insert setup code before the main component NOTE: Since FlowDot apps don Agent View of the PolicyLayer registry record for `prepend_app_code`. HTML page: https://policylayer.com/tools/flowdot-llc-mcp-server/prepend-app-code ## Facts - Tool: `prepend_app_code` - Server: FlowDot MCP Server (`flowdot-llc/mcp-server`) — https://policylayer.com/tools/flowdot-llc-mcp-server.md - Homepage: https://github.com/flowdot-llc/mcp-server - 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": "prepend_app_code", "arguments": {} } } ``` ## Why prepend_app_code is rated Medium This tool modifies existing app code by inserting content at the beginning. It is a write/modify operation on source code files. While it changes code, it is not inherently destructive (original code remains, just with content prepended), not financial, and not executing commands. The severity is medium because misuse could corrupt or break application code, but it is reversible in principle. From the tool's own definition: "Prepends content to the beginning of app code" ## Use case AI agents use prepend_app_code to create or update resources in FlowDot MCP Server, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your FlowDot MCP Server environment. ## Recommended policy (PolicyLayer) Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches FlowDot MCP Server: ```json { "version": "1", "default": "deny", "tools": { "prepend_app_code": { "limits": [ { "counter": "prepend_app_code_rate", "window": "minute", "max": 30, "scope": "grant" } ] } } } ``` ## Other tools on FlowDot MCP Server (206) - `browser_act` — Destructive — https://policylayer.com/tools/flowdot-llc-mcp-server/browser-act.md - `cancel_execution` — Destructive — https://policylayer.com/tools/flowdot-llc-mcp-server/cancel-execution.md - `delete_agent_character` — Destructive — https://policylayer.com/tools/flowdot-llc-mcp-server/delete-agent-character.md - `delete_app` — Destructive — https://policylayer.com/tools/flowdot-llc-mcp-server/delete-app.md - `delete_app_file` — Destructive — https://policylayer.com/tools/flowdot-llc-mcp-server/delete-app-file.md - `delete_connection` — Destructive — https://policylayer.com/tools/flowdot-llc-mcp-server/delete-connection.md - `delete_custom_node` — Destructive — https://policylayer.com/tools/flowdot-llc-mcp-server/delete-custom-node.md - `delete_goal` — Destructive — https://policylayer.com/tools/flowdot-llc-mcp-server/delete-goal.md - `delete_goal_milestone` — Destructive — https://policylayer.com/tools/flowdot-llc-mcp-server/delete-goal-milestone.md - `delete_goal_task` — Destructive — https://policylayer.com/tools/flowdot-llc-mcp-server/delete-goal-task.md - `delete_image` — Destructive — https://policylayer.com/tools/flowdot-llc-mcp-server/delete-image.md - `delete_input_preset` — Destructive — https://policylayer.com/tools/flowdot-llc-mcp-server/delete-input-preset.md - `delete_knowledge_category` — Destructive — https://policylayer.com/tools/flowdot-llc-mcp-server/delete-knowledge-category.md - `delete_knowledge_document` — Destructive — https://policylayer.com/tools/flowdot-llc-mcp-server/delete-knowledge-document.md - `delete_node` — Destructive — https://policylayer.com/tools/flowdot-llc-mcp-server/delete-node.md - `delete_recipe` — Destructive — https://policylayer.com/tools/flowdot-llc-mcp-server/delete-recipe.md - `delete_recipe_step` — Destructive — https://policylayer.com/tools/flowdot-llc-mcp-server/delete-recipe-step.md - `delete_recipe_store` — Destructive — https://policylayer.com/tools/flowdot-llc-mcp-server/delete-recipe-store.md - `delete_workflow` — Destructive — https://policylayer.com/tools/flowdot-llc-mcp-server/delete-workflow.md - `email_delete` — Destructive — https://policylayer.com/tools/flowdot-llc-mcp-server/email-delete.md - `mcp__flowdot__delete_agent_toolkit` — Destructive — https://policylayer.com/tools/flowdot-llc-mcp-server/mcp--flowdot--delete-agent-toolkit.md - `mcp__flowdot__delete_toolkit_tool` — Destructive — https://policylayer.com/tools/flowdot-llc-mcp-server/mcp--flowdot--delete-toolkit-tool.md - `mcp__flowdot__uninstall_toolkit` — Destructive — https://policylayer.com/tools/flowdot-llc-mcp-server/mcp--flowdot--uninstall-toolkit.md - `panic_clear` — Destructive — https://policylayer.com/tools/flowdot-llc-mcp-server/panic-clear.md - `revoke_kb_access` — Destructive — https://policylayer.com/tools/flowdot-llc-mcp-server/revoke-kb-access.md - `unlink_property_kb_source` — Destructive — https://policylayer.com/tools/flowdot-llc-mcp-server/unlink-property-kb-source.md - `browser_launch` — Execute — https://policylayer.com/tools/flowdot-llc-mcp-server/browser-launch.md - `browser_navigate` — Execute — https://policylayer.com/tools/flowdot-llc-mcp-server/browser-navigate.md - `browser_sequence` — Execute — https://policylayer.com/tools/flowdot-llc-mcp-server/browser-sequence.md - `browser_wait_for` — Execute — https://policylayer.com/tools/flowdot-llc-mcp-server/browser-wait-for.md - …and 176 more: https://policylayer.com/tools/flowdot-llc-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=flowdot-llc-mcp-server · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/flowdot-llc-mcp-server