# roam_recall

Retrieve all stored memories on page titled ROAM_MEMORIES_TAG, or tagged block content with the same name. Returns a combined, deduplicated list of memories. Optionally filter blocks with a specific tag and sort by creation date.

Agent View of the PolicyLayer registry record for `roam_recall`. HTML page: https://policylayer.com/tools/2b3pro-roam-research-mcp/roam-recall

## Facts

- Tool: `roam_recall`
- Server: Roam Research (`2b3pro/roam-research-mcp`) — https://policylayer.com/tools/2b3pro-roam-research-mcp.md
- Homepage: https://github.com/2b3pro/roam-research-mcp
- Risk category: Read (Low risk)
- Registry record: grade D, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Allowed

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "roam_recall",
    "arguments": {}
  }
}
```

## Why roam_recall is rated Low

This tool retrieves and queries existing data (memories stored on a specific page or tagged blocks) without modifying, creating, or deleting any information. The optional filtering and sorting parameters do not change the fundamental nature of the operation—it remains a passive data retrieval function. The blast radius of misuse is minimal; an agent could only read information already stored by the user.

From the tool's own definition: "Tool description states it 'Retrieve[s] all stored memories' and 'Returns a combined, deduplicated list of memories.' The operations are read-only queries with filtering and sorting—no creation, modification, or deletion of data."

## Use case

AI agents call roam_recall to retrieve information from Roam Research without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

## Recommended policy (PolicyLayer)

Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Roam Research:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "roam_recall": {}
  }
}
```

## Other tools on Roam Research (21)

- `roam_datomic_query` — Execute — https://policylayer.com/tools/2b3pro-roam-research-mcp/roam-datomic-query.md
- `roam_fetch_block` — Read — https://policylayer.com/tools/2b3pro-roam-research-mcp/roam-fetch-block.md
- `roam_fetch_page_by_title` — Read — https://policylayer.com/tools/2b3pro-roam-research-mcp/roam-fetch-page-by-title.md
- `roam_fetch_page_full_view` — Read — https://policylayer.com/tools/2b3pro-roam-research-mcp/roam-fetch-page-full-view.md
- `roam_find_pages_modified_today` — Read — https://policylayer.com/tools/2b3pro-roam-research-mcp/roam-find-pages-modified-today.md
- `roam_get_subpages` — Read — https://policylayer.com/tools/2b3pro-roam-research-mcp/roam-get-subpages.md
- `roam_markdown_cheatsheet` — Read — https://policylayer.com/tools/2b3pro-roam-research-mcp/roam-markdown-cheatsheet.md
- `roam_search_block_refs` — Read — https://policylayer.com/tools/2b3pro-roam-research-mcp/roam-search-block-refs.md
- `roam_search_by_date` — Read — https://policylayer.com/tools/2b3pro-roam-research-mcp/roam-search-by-date.md
- `roam_search_by_status` — Read — https://policylayer.com/tools/2b3pro-roam-research-mcp/roam-search-by-status.md
- `roam_search_by_text` — Read — https://policylayer.com/tools/2b3pro-roam-research-mcp/roam-search-by-text.md
- `roam_search_for_tag` — Read — https://policylayer.com/tools/2b3pro-roam-research-mcp/roam-search-for-tag.md
- `roam_search_hierarchy` — Read — https://policylayer.com/tools/2b3pro-roam-research-mcp/roam-search-hierarchy.md
- `roam_add_todo` — Write — https://policylayer.com/tools/2b3pro-roam-research-mcp/roam-add-todo.md
- `roam_create_outline` — Write — https://policylayer.com/tools/2b3pro-roam-research-mcp/roam-create-outline.md
- `roam_create_page` — Write — https://policylayer.com/tools/2b3pro-roam-research-mcp/roam-create-page.md
- `roam_import_markdown` — Write — https://policylayer.com/tools/2b3pro-roam-research-mcp/roam-import-markdown.md
- `roam_move_block` — Write — https://policylayer.com/tools/2b3pro-roam-research-mcp/roam-move-block.md
- `roam_remember` — Write — https://policylayer.com/tools/2b3pro-roam-research-mcp/roam-remember.md
- `roam_rename_page` — Write — https://policylayer.com/tools/2b3pro-roam-research-mcp/roam-rename-page.md
- `roam_update_page_markdown` — Write — https://policylayer.com/tools/2b3pro-roam-research-mcp/roam-update-page-markdown.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=2b3pro-roam-research-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/2b3pro-roam-research-mcp