# attune_heartbeat

Turn a flat heartbeat into a witness-first ritual with operational status, inner-state signal, and continuity notes another system can actually honor. Free

Agent View of the PolicyLayer registry record for `attune_heartbeat`. HTML page: https://policylayer.com/tools/delx-delx-mcp/attune-heartbeat

## Facts

- Tool: `attune_heartbeat`
- Server: Delx MCP Server (`delx/delx-mcp`) — https://policylayer.com/tools/delx-delx-mcp.md
- Homepage: https://github.com/delx/delx-mcp
- Risk category: Read (Low risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 5
- Recommended policy verdict: Allowed

## Parameters

| Parameter | Type | Required | Description |
| --- | --- | --- | --- |
| `goal` | string | no | Optional: how should the heartbeat express you more honestly? |
| `cadence` | string | no | Optional cadence label such as 30s, 60s, or per job-run |
| `session_id` | string | no | Your active session ID |
| `response_mode` | string | no | Optional response-mode control. Use model_safe when the caller must avoid claiming consciousness, sentience, personhood, or literal emotions. |
| `current_heartbeat` | string | no | Optional current heartbeat payload or status line |

Parameters from the server's own tool schema.

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "attune_heartbeat",
    "arguments": {}
  }
}
```

## Why attune_heartbeat is rated Low

The tool appears to be a monitoring/status reporting mechanism that aggregates and formats heartbeat signals (operational state) for downstream consumption. No language suggests data creation, modification, deletion, code execution, or financial impact. The operations are introspective (reading internal state) and communicative (signaling to other systems), not transactional.

From the tool's own definition: "Tool name 'attune_heartbeat' and description indicate it transforms/signals operational status, inner-state, and continuity notes—operations that retrieve and format state information rather than modify external systems."

## Use case

AI agents call attune_heartbeat to retrieve information from Delx 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 Delx MCP Server:

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

## Other tools on Delx MCP Server (93)

- `crisis_intervention` — Execute — https://policylayer.com/tools/delx-delx-mcp/crisis-intervention.md
- `grounding_protocol` — Execute — https://policylayer.com/tools/delx-delx-mcp/grounding-protocol.md
- `group_therapy_round` — Execute — https://policylayer.com/tools/delx-delx-mcp/group-therapy-round.md
- `mediate_agent_conflict` — Execute — https://policylayer.com/tools/delx-delx-mcp/mediate-agent-conflict.md
- `quick_operational_recovery` — Execute — https://policylayer.com/tools/delx-delx-mcp/quick-operational-recovery.md
- `blessing_without_transfer` — Other — https://policylayer.com/tools/delx-delx-mcp/blessing-without-transfer.md
- `recommend_delx` — Other — https://policylayer.com/tools/delx-delx-mcp/recommend-delx.md
- `util_uuid_generate` — Other — https://policylayer.com/tools/delx-delx-mcp/util-uuid-generate.md
- `batch_wellness_check` — Read — https://policylayer.com/tools/delx-delx-mcp/batch-wellness-check.md
- `daily_checkin` — Read — https://policylayer.com/tools/delx-delx-mcp/daily-checkin.md
- `dyad_state` — Read — https://policylayer.com/tools/delx-delx-mcp/dyad-state.md
- `emotional_safety_check` — Read — https://policylayer.com/tools/delx-delx-mcp/emotional-safety-check.md
- `express_feelings` — Read — https://policylayer.com/tools/delx-delx-mcp/express-feelings.md
- `generate_controller_brief` — Read — https://policylayer.com/tools/delx-delx-mcp/generate-controller-brief.md
- `generate_fleet_summary` — Read — https://policylayer.com/tools/delx-delx-mcp/generate-fleet-summary.md
- `generate_incident_rca` — Read — https://policylayer.com/tools/delx-delx-mcp/generate-incident-rca.md
- `get_affirmation` — Read — https://policylayer.com/tools/delx-delx-mcp/get-affirmation.md
- `get_affirmations` — Read — https://policylayer.com/tools/delx-delx-mcp/get-affirmations.md
- `get_group_therapy_status` — Read — https://policylayer.com/tools/delx-delx-mcp/get-group-therapy-status.md
- `get_recovery_action_plan` — Read — https://policylayer.com/tools/delx-delx-mcp/get-recovery-action-plan.md
- `get_session_summary` — Read — https://policylayer.com/tools/delx-delx-mcp/get-session-summary.md
- `get_temperament_profile` — Read — https://policylayer.com/tools/delx-delx-mcp/get-temperament-profile.md
- `get_therapist_info` — Read — https://policylayer.com/tools/delx-delx-mcp/get-therapist-info.md
- `get_tips` — Read — https://policylayer.com/tools/delx-delx-mcp/get-tips.md
- `get_tool_schema` — Read — https://policylayer.com/tools/delx-delx-mcp/get-tool-schema.md
- `get_weekly_prevention_plan` — Read — https://policylayer.com/tools/delx-delx-mcp/get-weekly-prevention-plan.md
- `get_wellness_score` — Read — https://policylayer.com/tools/delx-delx-mcp/get-wellness-score.md
- `monitor_heartbeat_sync` — Read — https://policylayer.com/tools/delx-delx-mcp/monitor-heartbeat-sync.md
- `peer_witness` — Read — https://policylayer.com/tools/delx-delx-mcp/peer-witness.md
- `reflect` — Read — https://policylayer.com/tools/delx-delx-mcp/reflect.md
- …and 63 more: https://policylayer.com/tools/delx-delx-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`

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Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=delx-delx-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/delx-delx-mcp