# fetch_assessment_run_leaf_controls

A read tool on the ComplianceCow MCP Server MCP server.

Agent View of the PolicyLayer registry record for `fetch_assessment_run_leaf_controls`. HTML page: https://policylayer.com/tools/compliancecow-cow-mcp/fetch-assessment-run-leaf-controls

## Facts

- Tool: `fetch_assessment_run_leaf_controls`
- Server: ComplianceCow MCP Server (`compliancecow/cow-mcp`) — https://policylayer.com/tools/compliancecow-cow-mcp.md
- Homepage: https://github.com/ComplianceCow/cow-mcp
- Risk category: Read (Low risk)
- Registry record: grade F, 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": "fetch_assessment_run_leaf_controls",
    "arguments": {}
  }
}
```

## Why fetch_assessment_run_leaf_controls is rated Low

This tool retrieves (fetches) assessment run data related to leaf controls—it queries the compliance graph for information. No destructive, financial, or write operations are indicated. The fetch pattern classifies it as a Read operation.

From the tool's own definition: "Tool name 'fetch_assessment_run_leaf_controls' uses the verb 'fetch', which is a retrieval operation with no side effects."

## Use case

AI agents call fetch_assessment_run_leaf_controls to retrieve information from ComplianceCow MCP Server 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 ComplianceCow MCP Server:

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

## Other tools on ComplianceCow MCP Server (208)

- `delete_asset_schedule` — Destructive — https://policylayer.com/tools/compliancecow-cow-mcp/delete-asset-schedule.md
- `create_sql_query_evidence` — Execute — https://policylayer.com/tools/compliancecow-cow-mcp/create-sql-query-evidence.md
- `execute_action` — Execute — https://policylayer.com/tools/compliancecow-cow-mcp/execute-action.md
- `execute_cypher_query` — Execute — https://policylayer.com/tools/compliancecow-cow-mcp/execute-cypher-query.md
- `execute_rule` — Execute — https://policylayer.com/tools/compliancecow-cow-mcp/execute-rule.md
- `execute_shell_command` — Execute — https://policylayer.com/tools/compliancecow-cow-mcp/execute-shell-command.md
- `execute_task` — Execute — https://policylayer.com/tools/compliancecow-cow-mcp/execute-task.md
- `prepare_applications_for_execution` — Execute — https://policylayer.com/tools/compliancecow-cow-mcp/prepare-applications-for-execution.md
- `run_metrics_assessment` — Execute — https://policylayer.com/tools/compliancecow-cow-mcp/run-metrics-assessment.md
- `schedule_asset_execution` — Execute — https://policylayer.com/tools/compliancecow-cow-mcp/schedule-asset-execution.md
- `trigger_workflow` — Execute — https://policylayer.com/tools/compliancecow-cow-mcp/trigger-workflow.md
- `validate_sql_query` — Execute — https://policylayer.com/tools/compliancecow-cow-mcp/validate-sql-query.md
- `validate_sql_query_and_cel` — Execute — https://policylayer.com/tools/compliancecow-cow-mcp/validate-sql-query-and-cel.md
- `collect_parameter_input` — Other — https://policylayer.com/tools/compliancecow-cow-mcp/collect-parameter-input.md
- `confirm_parameter_input` — Other — https://policylayer.com/tools/compliancecow-cow-mcp/confirm-parameter-input.md
- `confirm_template_input` — Other — https://policylayer.com/tools/compliancecow-cow-mcp/confirm-template-input.md
- `create_metric_sql_query_evidence` — Other — https://policylayer.com/tools/compliancecow-cow-mcp/create-metric-sql-query-evidence.md
- `create_workflow_custom_event` — Other — https://policylayer.com/tools/compliancecow-cow-mcp/create-workflow-custom-event.md
- `generate_design_notes_preview` — Other — https://policylayer.com/tools/compliancecow-cow-mcp/generate-design-notes-preview.md
- `generate_rule_readme_preview` — Other — https://policylayer.com/tools/compliancecow-cow-mcp/generate-rule-readme-preview.md
- `modify_workflow` — Other — https://policylayer.com/tools/compliancecow-cow-mcp/modify-workflow.md
- `publish_application` — Other — https://policylayer.com/tools/compliancecow-cow-mcp/publish-application.md
- `audit_fetch_assessment_run_details` — Read — https://policylayer.com/tools/compliancecow-cow-mcp/audit-fetch-assessment-run-details.md
- `audit_fetch_assessment_run_leaf_control_evidence` — Read — https://policylayer.com/tools/compliancecow-cow-mcp/audit-fetch-assessment-run-leaf-control-evidence.md
- `audit_fetch_assessment_runs` — Read — https://policylayer.com/tools/compliancecow-cow-mcp/audit-fetch-assessment-runs.md
- `audit_fetch_evidence_records` — Read — https://policylayer.com/tools/compliancecow-cow-mcp/audit-fetch-evidence-records.md
- `audit_get_uses_by_ids` — Read — https://policylayer.com/tools/compliancecow-cow-mcp/audit-get-uses-by-ids.md
- `audit_list_all_assessment_categories` — Read — https://policylayer.com/tools/compliancecow-cow-mcp/audit-list-all-assessment-categories.md
- `audit_list_all_assessments` — Read — https://policylayer.com/tools/compliancecow-cow-mcp/audit-list-all-assessments.md
- `audit_list_assessment_control_configs` — Read — https://policylayer.com/tools/compliancecow-cow-mcp/audit-list-assessment-control-configs.md
- …and 178 more: https://policylayer.com/tools/compliancecow-cow-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=compliancecow-cow-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/compliancecow-cow-mcp