# capture_thought

A write tool on the MyChatArchive MCP Server MCP server.

Agent View of the PolicyLayer registry record for `capture_thought`. HTML page: https://policylayer.com/tools/1ch1n-mychatarchive/capture-thought

## Facts

- Tool: `capture_thought`
- Server: MyChatArchive MCP Server (`1ch1n/mychatarchive`) — https://policylayer.com/tools/1ch1n-mychatarchive.md
- Homepage: https://github.com/1ch1n/mychatarchive
- Risk category: Write (Medium risk)
- Registry record: grade A, 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": "capture_thought",
    "arguments": {}
  }
}
```

## Why capture_thought is rated Medium

The name 'capture_thought' implies writing or saving a thought/note to the local archive. Given the server context ('capture thoughts' is listed as a server capability), this is most likely a Write operation. However, the empty description significantly lowers confidence. Severity is medium because misuse could write unwanted data to the user's personal conversation archive.

From the tool's own definition: "Tool name 'capture_thought' suggests creating/storing data; description is empty and uninformative."

## Use case

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

## Recommended policy (PolicyLayer)

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

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

## Other tools on MyChatArchive MCP Server (5)

- `get_context` — Read — https://policylayer.com/tools/1ch1n-mychatarchive/get-context.md
- `get_current_datetime` — Read — https://policylayer.com/tools/1ch1n-mychatarchive/get-current-datetime.md
- `get_profile` — Read — https://policylayer.com/tools/1ch1n-mychatarchive/get-profile.md
- `search_brain` — Read — https://policylayer.com/tools/1ch1n-mychatarchive/search-brain.md
- `search_recent` — Read — https://policylayer.com/tools/1ch1n-mychatarchive/search-recent.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=1ch1n-mychatarchive · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/1ch1n-mychatarchive