# update_oauth_credential

Update an OAuth credential. Rotate the secret (client_secret/password/private key) by passing a new grant + secret field; this clears the cached token so the next invoke re-fetches. Leave grant fields out to edit only display_name/token_url/scopes. Grant type cannot be changed — delete and recreate to switch.

Agent View of the PolicyLayer registry record for `update_oauth_credential`. HTML page: https://policylayer.com/tools/deloc-mcp/update-oauth-credential

## Facts

- Tool: `update_oauth_credential`
- Server: Deloc (`delocdev/deloc-mcp`) — https://policylayer.com/tools/deloc-mcp.md
- Homepage: https://github.com/delocdev/deloc-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": "update_oauth_credential",
    "arguments": {}
  }
}
```

## Why update_oauth_credential is rated Medium

This tool modifies existing credentials reversibly — the operation can be undone by updating again with different values. It does not delete credentials (which would be Destructive) but changes them. The high severity reflects that misuse could redirect authentication flows, intercept tokens, or grant unauthorized access to third-party services, making this a significant security-relevant Write operation.

From the tool's own definition: "Tool updates OAuth credentials and explicitly supports rotating secrets (client_secret/password/private key). The description states it 'clears the cached token so the next invoke re-fetches,' indicating modification of stored sensitive authentication data."

## Use case

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

## Recommended policy (PolicyLayer)

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

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

## Other tools on Deloc (44)

- `delete_action` — Destructive — https://policylayer.com/tools/deloc-mcp/delete-action.md
- `delete_action_secret` — Destructive — https://policylayer.com/tools/deloc-mcp/delete-action-secret.md
- `delete_app` — Destructive — https://policylayer.com/tools/deloc-mcp/delete-app.md
- `delete_dashboard_query` — Destructive — https://policylayer.com/tools/deloc-mcp/delete-dashboard-query.md
- `delete_data_connection` — Destructive — https://policylayer.com/tools/deloc-mcp/delete-data-connection.md
- `delete_oauth_credential` — Destructive — https://policylayer.com/tools/deloc-mcp/delete-oauth-credential.md
- `disable_app` — Destructive — https://policylayer.com/tools/deloc-mcp/disable-app.md
- `logout` — Destructive — https://policylayer.com/tools/deloc-mcp/logout.md
- `deploy` — Execute — https://policylayer.com/tools/deloc-mcp/deploy.md
- `run_dashboard_query` — Execute — https://policylayer.com/tools/deloc-mcp/run-dashboard-query.md
- `test_action` — Execute — https://policylayer.com/tools/deloc-mcp/test-action.md
- `test_oauth_credential` — Execute — https://policylayer.com/tools/deloc-mcp/test-oauth-credential.md
- `bigquery_get_table_schema` — Read — https://policylayer.com/tools/deloc-mcp/bigquery-get-table-schema.md
- `bigquery_list_datasets` — Read — https://policylayer.com/tools/deloc-mcp/bigquery-list-datasets.md
- `bigquery_list_projects` — Read — https://policylayer.com/tools/deloc-mcp/bigquery-list-projects.md
- `bigquery_list_tables` — Read — https://policylayer.com/tools/deloc-mcp/bigquery-list-tables.md
- `check_bigquery_connection` — Read — https://policylayer.com/tools/deloc-mcp/check-bigquery-connection.md
- `get_account` — Read — https://policylayer.com/tools/deloc-mcp/get-account.md
- `get_action_logs` — Read — https://policylayer.com/tools/deloc-mcp/get-action-logs.md
- `get_app` — Read — https://policylayer.com/tools/deloc-mcp/get-app.md
- `list_action_secrets` — Read — https://policylayer.com/tools/deloc-mcp/list-action-secrets.md
- `list_actions` — Read — https://policylayer.com/tools/deloc-mcp/list-actions.md
- `list_apps` — Read — https://policylayer.com/tools/deloc-mcp/list-apps.md
- `list_dashboard_queries` — Read — https://policylayer.com/tools/deloc-mcp/list-dashboard-queries.md
- `list_data_connections` — Read — https://policylayer.com/tools/deloc-mcp/list-data-connections.md
- `list_data_files` — Read — https://policylayer.com/tools/deloc-mcp/list-data-files.md
- `list_oauth_credentials` — Read — https://policylayer.com/tools/deloc-mcp/list-oauth-credentials.md
- `suggest_deploy_options` — Read — https://policylayer.com/tools/deloc-mcp/suggest-deploy-options.md
- `connect_bigquery` — Write — https://policylayer.com/tools/deloc-mcp/connect-bigquery.md
- `create_action` — Write — https://policylayer.com/tools/deloc-mcp/create-action.md
- …and 14 more: https://policylayer.com/tools/deloc-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=deloc-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/deloc-mcp