# dev.workers.3labsio.policy-gate/policy-gate

> Deterministic allow/require_approval/deny verdicts for agent actions, before they happen.

- name: dev.workers.3labsio.policy-gate/policy-gate
- version: 0.2.0
- connection class: R0 (autonomous)
- trust: 92/100
- quality: 79/100 (good)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/dev.workers.3labsio.policy-gate%2Fpolicy-gate
- tools: https://api.protogrid.dev/v1/servers/dev.workers.3labsio.policy-gate%2Fpolicy-gate/tools

**An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "policy-gate": {
      "type": "http",
      "url": "https://policy-gate.3labsio.workers.dev/mcp"
    }
  }
}
```


## Trust

- hygiene: 100
- liveness: 98
- freshness: 85
- provenance: 85
- drivers: +repository +dns-namespace +website +reachable +uptime-94% ~updated-65d-ago
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 79/100 (good)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
- n/a `protocol.stateless`: only applies to 2026-07-28 servers
- pass `protocol.transport`: streamable HTTP
- n/a `protocol.list_ttl`: only applies to 2026-07-28 servers

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 71 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- fail `tools.annotations`: no tool declares readOnlyHint or destructiveHint, so clients cannot tell safe calls from risky ones
- fail `tools.directory_hints`: no tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: policy_rules (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); policy_check (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); policy_example (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); …
- pass `tools.token_cost`: about 555 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: 100 (weight 15)

- pass `stability.changes`: no tool changes in 30 days
- pass `stability.rug_pull`: no tool changed its meaning under the same name

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 4, about 555 tokens to load them all
- tool set hash: e79f17a7abdb96dade11e95ae69af7c3
- badge: [![protogrid quality](https://protogrid.dev/badge/dev.workers.3labsio.policy-gate/policy-gate.svg)](https://protogrid.dev/servers/dev.workers.3labsio.policy-gate/policy-gate)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

_No tool definition changes recorded._

## Remotes

- https://policy-gate.3labsio.workers.dev/mcp (streamable-http, auth none, reachable true, uptime30d 0.9391304)

## Packages

_none_

## Tools (4)

- `first_42_sponsor`: Pay Fieldproof $42. Returns every live rail: Stripe card_uri, EIP-681 usdc_uri, BIP-21 btc_uri, x402 POST /v1/sponsor, Zelle, and GET /v1/invoice. One settlement meets the first-$42 bar.
- `policy_check`: Evaluate a proposed agent action against a policy and return allow / require_approval / deny with the matched rule and rationale. Paid per call via x402 ($0.005 USDC on Base); returns signing instructions when unpaid.
- `policy_example`: Free. Worked allow/require_approval/deny verdicts from the live policy engine, so you can judge the service before paying for it.
- `policy_rules`: Free. The full built-in policy: every tier, rule, condition and rationale. Nothing about how a verdict is reached is hidden.