# list_patterns

List all composition patterns in the A2UI corpus. Optional filters narrow by domain (auth, settings, dashboard, etc.) or category (block, page, flow).

Agent View of the PolicyLayer registry record for `list_patterns`. HTML page: https://policylayer.com/tools/adia-ai-mcp/list-patterns

## Facts

- Tool: `list_patterns`
- Server: Adia Ai (`@adia-ai/mcp`) — https://policylayer.com/tools/adia-ai-mcp.md
- Install: `npx -y @adia-ai/mcp`
- Homepage: https://www.npmjs.com/package/@adia-ai/mcp
- Risk category: Read (Low risk)
- Registry record: grade C, 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": "list_patterns",
    "arguments": {}
  }
}
```

## Why list_patterns is rated Low

Even though list_patterns only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.

## Use case

AI agents call list_patterns to retrieve information from Adia Ai 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 Adia Ai:

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

## Other tools on Adia Ai (42)

- `run_eval` — Execute — https://policylayer.com/tools/adia-ai-mcp/run-eval.md
- `submit_feedback` — Other — https://policylayer.com/tools/adia-ai-mcp/submit-feedback.md
- `assemble_context` — Read — https://policylayer.com/tools/adia-ai-mcp/assemble-context.md
- `audit_structure` — Read — https://policylayer.com/tools/adia-ai-mcp/audit-structure.md
- `check_anti_patterns` — Read — https://policylayer.com/tools/adia-ai-mcp/check-anti-patterns.md
- `classify_intent` — Read — https://policylayer.com/tools/adia-ai-mcp/classify-intent.md
- `compose_from_chunks` — Read — https://policylayer.com/tools/adia-ai-mcp/compose-from-chunks.md
- `factory_status` — Read — https://policylayer.com/tools/adia-ai-mcp/factory-status.md
- `get_catalog_ladder` — Read — https://policylayer.com/tools/adia-ai-mcp/get-catalog-ladder.md
- `get_catalog_tiers` — Read — https://policylayer.com/tools/adia-ai-mcp/get-catalog-tiers.md
- `get_chunk` — Read — https://policylayer.com/tools/adia-ai-mcp/get-chunk.md
- `get_component_map` — Read — https://policylayer.com/tools/adia-ai-mcp/get-component-map.md
- `get_composition` — Read — https://policylayer.com/tools/adia-ai-mcp/get-composition.md
- `get_graph` — Read — https://policylayer.com/tools/adia-ai-mcp/get-graph.md
- `get_quality_metrics` — Read — https://policylayer.com/tools/adia-ai-mcp/get-quality-metrics.md
- `get_registry_map` — Read — https://policylayer.com/tools/adia-ai-mcp/get-registry-map.md
- `get_state` — Read — https://policylayer.com/tools/adia-ai-mcp/get-state.md
- `get_training_gaps` — Read — https://policylayer.com/tools/adia-ai-mcp/get-training-gaps.md
- `get_traits` — Read — https://policylayer.com/tools/adia-ai-mcp/get-traits.md
- `get_wiring_catalog` — Read — https://policylayer.com/tools/adia-ai-mcp/get-wiring-catalog.md
- `get_wiring_registry` — Read — https://policylayer.com/tools/adia-ai-mcp/get-wiring-registry.md
- `lookup_chunk` — Read — https://policylayer.com/tools/adia-ai-mcp/lookup-chunk.md
- `lookup_component` — Read — https://policylayer.com/tools/adia-ai-mcp/lookup-component.md
- `orient_app` — Read — https://policylayer.com/tools/adia-ai-mcp/orient-app.md
- `protocol_status` — Read — https://policylayer.com/tools/adia-ai-mcp/protocol-status.md
- `refine_ui` — Read — https://policylayer.com/tools/adia-ai-mcp/refine-ui.md
- `scaffold_app` — Read — https://policylayer.com/tools/adia-ai-mcp/scaffold-app.md
- `scaffold_page` — Read — https://policylayer.com/tools/adia-ai-mcp/scaffold-page.md
- `search_chunks` — Read — https://policylayer.com/tools/adia-ai-mcp/search-chunks.md
- `search_patterns` — Read — https://policylayer.com/tools/adia-ai-mcp/search-patterns.md
- …and 12 more: https://policylayer.com/tools/adia-ai-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=adia-ai-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/adia-ai-mcp