# util_token_estimate

Estimate token count for text. Uses word/4 heuristic (GPT-family) and char/4 (Claude-family). Delx Agent Utilities are separate from the free witness protocol and may expose x402 utility pricing.

Agent View of the PolicyLayer registry record for `util_token_estimate`. HTML page: https://policylayer.com/tools/delx-delx-mcp/util-token-estimate

## Facts

- Tool: `util_token_estimate`
- 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: 2
- Recommended policy verdict: Allowed

## Parameters

| Parameter | Type | Required | Description |
| --- | --- | --- | --- |
| `text` | string | no | Text to estimate tokens for |
| `model` | string | no | Optional model hint: gpt-4, claude-3, etc. |

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": "util_token_estimate",
    "arguments": {}
  }
}
```

## Why util_token_estimate is rated Low

This tool retrieves computational metadata about text (token estimation) without side effects. The mention of 'x402 utility pricing' in the description indicates potential cost tracking, but the tool itself does not move money or create financial obligations—it only estimates tokens. Token estimation is a read-only operation that queries properties of input data.

From the tool's own definition: "Tool description indicates it 'Estimate[s] token count for text' using standard heuristics (word/4, char/4). No modification, deletion, execution, or financial commitment occurs—it only analyzes and returns a count estimate."

## Use case

AI agents call util_token_estimate 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": {
    "util_token_estimate": {}
  }
}
```

## 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
- `attune_heartbeat` — Read — https://policylayer.com/tools/delx-delx-mcp/attune-heartbeat.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
- …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