# openehr_composition_update

A write tool on the openEHR MCP Server MCP server.

Agent View of the PolicyLayer registry record for `openehr_composition_update`. HTML page: https://policylayer.com/tools/deak-ai-openehr-mcp-server/openehr-composition-update

## Facts

- Tool: `openehr_composition_update`
- Server: openEHR MCP Server (`deak-ai/openehr-mcp-server`) — https://policylayer.com/tools/deak-ai-openehr-mcp-server.md
- Homepage: https://github.com/deak-ai/openehr-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": "openehr_composition_update",
    "arguments": {}
  }
}
```

## Why openehr_composition_update is rated Medium

The tool updates compositions in an openEHR system, which are reversible modifications to electronic health record data. This qualifies as Write category rather than Destructive because updates are non-irreversible changes. Severity is medium because misuse could corrupt or alter sensitive patient health records, but the impact is limited to a single composition unless an agent makes systematic updates.

From the tool's own definition: "Tool name is 'openehr_composition_update' which explicitly indicates modification of existing data (update)."

## Use case

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

## Recommended policy (PolicyLayer)

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

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

## Other tools on openEHR MCP Server (12)

- `openehr_composition_delete` — Destructive — https://policylayer.com/tools/deak-ai-openehr-mcp-server/openehr-composition-delete.md
- `openehr_query_adhoc` — Execute — https://policylayer.com/tools/deak-ai-openehr-mcp-server/openehr-query-adhoc.md
- `openehr_composition_get` — Read — https://policylayer.com/tools/deak-ai-openehr-mcp-server/openehr-composition-get.md
- `openehr_compositions_list` — Read — https://policylayer.com/tools/deak-ai-openehr-mcp-server/openehr-compositions-list.md
- `openehr_ehr_get` — Read — https://policylayer.com/tools/deak-ai-openehr-mcp-server/openehr-ehr-get.md
- `openehr_ehr_get_by_subject` — Read — https://policylayer.com/tools/deak-ai-openehr-mcp-server/openehr-ehr-get-by-subject.md
- `openehr_ehr_list` — Read — https://policylayer.com/tools/deak-ai-openehr-mcp-server/openehr-ehr-list.md
- `openehr_template_example_composition` — Read — https://policylayer.com/tools/deak-ai-openehr-mcp-server/openehr-template-example-composition.md
- `openehr_template_get` — Read — https://policylayer.com/tools/deak-ai-openehr-mcp-server/openehr-template-get.md
- `openehr_template_list` — Read — https://policylayer.com/tools/deak-ai-openehr-mcp-server/openehr-template-list.md
- `openehr_composition_create` — Write — https://policylayer.com/tools/deak-ai-openehr-mcp-server/openehr-composition-create.md
- `openehr_ehr_create` — Write — https://policylayer.com/tools/deak-ai-openehr-mcp-server/openehr-ehr-create.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=deak-ai-openehr-mcp-server · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/deak-ai-openehr-mcp-server