# add_user_fact

A write tool on the Coach AI MCP server.

Agent View of the PolicyLayer registry record for `add_user_fact`. HTML page: https://policylayer.com/tools/94aharris-coach-ai/add-user-fact

## Facts

- Tool: `add_user_fact`
- Server: Coach AI (`94aharris/coach-ai`) — https://policylayer.com/tools/94aharris-coach-ai.md
- Homepage: https://github.com/94aharris/coach-ai
- 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": "add_user_fact",
    "arguments": {}
  }
}
```

## Why add_user_fact is rated Medium

The tool creates or modifies user profile data in the persistent memory system. While the description is empty, the name combined with server context and sibling tool patterns clearly indicates this is a Write operation that adds factual information about the user.

From the tool's own definition: "Tool name 'add_user_fact' indicates data creation/modification. Sibling tools on the server include 'add_task_context', 'add_todo', 'create_daily_note', 'complete_todo', and 'delete_todo', establishing a pattern of data manipulation operations."

## Use case

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

## Recommended policy (PolicyLayer)

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

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

## Other tools on Coach AI (27)

- `delete_todo` — Destructive — https://policylayer.com/tools/94aharris-coach-ai/delete-todo.md
- `parse_task_list` — Execute — https://policylayer.com/tools/94aharris-coach-ai/parse-task-list.md
- `start_my_day` — Execute — https://policylayer.com/tools/94aharris-coach-ai/start-my-day.md
- `start_my_week` — Execute — https://policylayer.com/tools/94aharris-coach-ai/start-my-week.md
- `generate_daily_summary` — Read — https://policylayer.com/tools/94aharris-coach-ai/generate-daily-summary.md
- `get_daily_note_path` — Read — https://policylayer.com/tools/94aharris-coach-ai/get-daily-note-path.md
- `get_recommendation` — Read — https://policylayer.com/tools/94aharris-coach-ai/get-recommendation.md
- `get_user_context` — Read — https://policylayer.com/tools/94aharris-coach-ai/get-user-context.md
- `list_goals` — Read — https://policylayer.com/tools/94aharris-coach-ai/list-goals.md
- `list_todos` — Read — https://policylayer.com/tools/94aharris-coach-ai/list-todos.md
- `read_daily_note_full` — Read — https://policylayer.com/tools/94aharris-coach-ai/read-daily-note-full.md
- `read_daily_note_section` — Read — https://policylayer.com/tools/94aharris-coach-ai/read-daily-note-section.md
- `sync_from_daily_note` — Read — https://policylayer.com/tools/94aharris-coach-ai/sync-from-daily-note.md
- `add_daily_note_section` — Write — https://policylayer.com/tools/94aharris-coach-ai/add-daily-note-section.md
- `add_task_context` — Write — https://policylayer.com/tools/94aharris-coach-ai/add-task-context.md
- `add_todo` — Write — https://policylayer.com/tools/94aharris-coach-ai/add-todo.md
- `batch_assign_timeframes` — Write — https://policylayer.com/tools/94aharris-coach-ai/batch-assign-timeframes.md
- `brain_dump_tasks` — Write — https://policylayer.com/tools/94aharris-coach-ai/brain-dump-tasks.md
- `break_down_task` — Write — https://policylayer.com/tools/94aharris-coach-ai/break-down-task.md
- `complete_todo` — Write — https://policylayer.com/tools/94aharris-coach-ai/complete-todo.md
- `create_daily_note` — Write — https://policylayer.com/tools/94aharris-coach-ai/create-daily-note.md
- `log_accomplishment` — Write — https://policylayer.com/tools/94aharris-coach-ai/log-accomplishment.md
- `set_goal` — Write — https://policylayer.com/tools/94aharris-coach-ai/set-goal.md
- `set_todo_timeframe` — Write — https://policylayer.com/tools/94aharris-coach-ai/set-todo-timeframe.md
- `set_week_theme` — Write — https://policylayer.com/tools/94aharris-coach-ai/set-week-theme.md
- `sync_daily_note` — Write — https://policylayer.com/tools/94aharris-coach-ai/sync-daily-note.md
- `write_daily_note_section` — Write — https://policylayer.com/tools/94aharris-coach-ai/write-daily-note-section.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=94aharris-coach-ai · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/94aharris-coach-ai