# append_blocks

A write tool on the Integrations MCP MCP server.

Agent View of the PolicyLayer registry record for `append_blocks`. HTML page: https://policylayer.com/tools/shriram-vasudevan-integrations-mcp/append-blocks

## Facts

- Tool: `append_blocks`
- Server: Integrations MCP (`shriram-vasudevan/integrations-mcp`) — https://policylayer.com/tools/shriram-vasudevan-integrations-mcp.md
- Homepage: https://github.com/Shriram-Vasudevan/integrations-mcp
- 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": "append_blocks",
    "arguments": {}
  }
}
```

## Why append_blocks is rated Medium

The name 'append_blocks' strongly implies adding new content blocks to an existing document or page (common in Notion API contexts). Appending is a write/modify operation that is generally reversible. Severity is high because an AI agent could append large amounts of unwanted content to important documents. Confidence is lowered due to the empty description.

From the tool's own definition: "Tool name 'append_blocks' suggests adding/appending content blocks (e.g., to a Notion page or similar document), which is a write operation. Description is empty and uninformative."

## Use case

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

## Recommended policy (PolicyLayer)

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

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

## Other tools on Integrations MCP (419)

- `airtable_delete_record` — Destructive — https://policylayer.com/tools/shriram-vasudevan-integrations-mcp/airtable-delete-record.md
- `calendly_cancel_event` — Destructive — https://policylayer.com/tools/shriram-vasudevan-integrations-mcp/calendly-cancel-event.md
- `calendly_remove_invitee` — Destructive — https://policylayer.com/tools/shriram-vasudevan-integrations-mcp/calendly-remove-invitee.md
- `cloudflare_delete_dns_record` — Destructive — https://policylayer.com/tools/shriram-vasudevan-integrations-mcp/cloudflare-delete-dns-record.md
- `cloudflare_purge_cache` — Destructive — https://policylayer.com/tools/shriram-vasudevan-integrations-mcp/cloudflare-purge-cache.md
- `gcal_delete_event` — Destructive — https://policylayer.com/tools/shriram-vasudevan-integrations-mcp/gcal-delete-event.md
- `okta_deactivate_user` — Destructive — https://policylayer.com/tools/shriram-vasudevan-integrations-mcp/okta-deactivate-user.md
- `s3_delete_object` — Destructive — https://policylayer.com/tools/shriram-vasudevan-integrations-mcp/s3-delete-object.md
- `salesforce_delete_record` — Destructive — https://policylayer.com/tools/shriram-vasudevan-integrations-mcp/salesforce-delete-record.md
- `supabase_delete_user` — Destructive — https://policylayer.com/tools/shriram-vasudevan-integrations-mcp/supabase-delete-user.md
- `amplitude_run_segmentation` — Execute — https://policylayer.com/tools/shriram-vasudevan-integrations-mcp/amplitude-run-segmentation.md
- `parse_natural_timezone` — Execute — https://policylayer.com/tools/shriram-vasudevan-integrations-mcp/parse-natural-timezone.md
- `postmark_send_batch` — Execute — https://policylayer.com/tools/shriram-vasudevan-integrations-mcp/postmark-send-batch.md
- `query_database` — Execute — https://policylayer.com/tools/shriram-vasudevan-integrations-mcp/query-database.md
- `resend_verify_domain` — Execute — https://policylayer.com/tools/shriram-vasudevan-integrations-mcp/resend-verify-domain.md
- `salesforce_query` — Execute — https://policylayer.com/tools/shriram-vasudevan-integrations-mcp/salesforce-query.md
- `sendgrid_send_email` — Execute — https://policylayer.com/tools/shriram-vasudevan-integrations-mcp/sendgrid-send-email.md
- `snowflake_execute_query` — Execute — https://policylayer.com/tools/shriram-vasudevan-integrations-mcp/snowflake-execute-query.md
- `supabase_execute_sql` — Execute — https://policylayer.com/tools/shriram-vasudevan-integrations-mcp/supabase-execute-sql.md
- `twilio_make_call` — Execute — https://policylayer.com/tools/shriram-vasudevan-integrations-mcp/twilio-make-call.md
- `twilio_send_sms` — Execute — https://policylayer.com/tools/shriram-vasudevan-integrations-mcp/twilio-send-sms.md
- `vercel_create_deployment` — Execute — https://policylayer.com/tools/shriram-vasudevan-integrations-mcp/vercel-create-deployment.md
- `stripe_create_payment_intent` — Financial — https://policylayer.com/tools/shriram-vasudevan-integrations-mcp/stripe-create-payment-intent.md
- `author` — Other — https://policylayer.com/tools/shriram-vasudevan-integrations-mcp/author.md
- `generate_password` — Other — https://policylayer.com/tools/shriram-vasudevan-integrations-mcp/generate-password.md
- `generate_users` — Other — https://policylayer.com/tools/shriram-vasudevan-integrations-mcp/generate-users.md
- `airtable_get_record` — Read — https://policylayer.com/tools/shriram-vasudevan-integrations-mcp/airtable-get-record.md
- `airtable_list_bases` — Read — https://policylayer.com/tools/shriram-vasudevan-integrations-mcp/airtable-list-bases.md
- `airtable_list_records` — Read — https://policylayer.com/tools/shriram-vasudevan-integrations-mcp/airtable-list-records.md
- `airtable_list_tables` — Read — https://policylayer.com/tools/shriram-vasudevan-integrations-mcp/airtable-list-tables.md
- …and 389 more: https://policylayer.com/tools/shriram-vasudevan-integrations-mcp.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=shriram-vasudevan-integrations-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/shriram-vasudevan-integrations-mcp