# update_agent_character

Update an agent character. Send only the fields you want to change. The Hub validates the post-merge state — if the patch would leave the character incomplete the call returns CHARACTER_VOICE_CONFIG_INCOMPLETE with the missing fields.

Agent View of the PolicyLayer registry record for `update_agent_character`. HTML page: https://policylayer.com/tools/flowdot-llc-mcp-server/update-agent-character

## Facts

- Tool: `update_agent_character`
- 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": "update_agent_character",
    "arguments": {}
  }
}
```

## Why update_agent_character is rated Medium

This tool creates or modifies data (an agent character configuration) reversibly. Updates can be reverted or corrected, fitting the Write category. Severity is medium because misconfiguration of agent behavior could have downstream effects on agent outputs and actions, but the change itself is not destructive, financial, or immediately executable.

From the tool's own definition: "Tool description states 'Update an agent character' and 'Send only the fields you want to change', indicating modification of existing data in a reversible manner."

## Use case

AI agents use update_agent_character 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": {
    "update_agent_character": {
      "limits": [
        {
          "counter": "update_agent_character_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
