# Futility Breaker

> Evidence-bound stopping for agents: judgment ledger, binding futility verdicts, signed receipts.

- name: com.textforagents/futility-breaker-evidence-bound-stopping
- version: 1.0.0
- connection class: R0 (autonomous)
- trust: 80/100 flags: no-repository
- quality: 80/100 (good)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/com.textforagents%2Ffutility-breaker-evidence-bound-stopping
- tools: https://api.protogrid.dev/v1/servers/com.textforagents%2Ffutility-breaker-evidence-bound-stopping/tools

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

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "futility-breaker-evidence-bound-stopping": {
      "type": "http",
      "url": "https://textforagents.com/products/futility-breaker-evidence-bound-stopping/mcp"
    }
  }
}
```


## Trust

- hygiene: 80
- liveness: 100
- freshness: 100
- provenance: 45
- drivers: +dns-namespace +reachable +uptime-100% +updated-16d-ago -no-repository
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 80/100 (good)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2024-11-05; 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: 86 (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
- pass `tools.annotations`: 6 of 6 tools declare readOnlyHint or destructiveHint
- fail `tools.directory_hints`: no tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: futility_receipt (idempotentHint, openWorldHint); futility_verify_receipt (idempotentHint, openWorldHint); futility_judge (idempotentHint, openWorldHint); …
- pass `tools.token_cost`: about 501 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: 75 (weight 15)

- warn `stability.changes`: 6 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: 6, about 501 tokens to load them all
- tool set hash: f56d5e75c6714ae7a3fd91a44c41817d
- tools last changed: 2026-11-03T20:47:56.663Z
- badge: [![protogrid quality](https://protogrid.dev/badge/com.textforagents/futility-breaker-evidence-bound-stopping.svg)](https://protogrid.dev/servers/com.textforagents/futility-breaker-evidence-bound-stopping)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

- 2026-11-03 `futility_verify_receipt` changed (title, annotations)
- 2026-11-03 `futility_receipt` changed (title, annotations)
- 2026-11-03 `futility_waste_report` changed (title, annotations)
- 2026-11-03 `futility_verdict` changed (title, annotations)
- 2026-11-03 `futility_judge` changed (title, annotations)
- 2026-11-03 `futility_register_run` changed (title, annotations)

Full history: https://api.protogrid.dev/v1/servers/com.textforagents%2Ffutility-breaker-evidence-bound-stopping/changes

## Remotes

- https://textforagents.com/products/futility-breaker-evidence-bound-stopping/mcp (streamable-http, auth none, reachable true, uptime30d 1)

## Packages

_none_

## Tools (6)

- `futility_judge`: Record one usefulness judgment (useful / useless / partial) for a run/source/domain and return the binding verdict (CONTINUE / STOP-SOURCE / INTEGRATE-NOW / ABSTAIN). Billed as a verdict call: one-time trial, tier allowance, or x402 $0.002.
- `futility_receipt`: Mint the HMAC-signed abstention receipt when the run/source/domain verdict is ABSTAIN.
- `futility_register_run`: Register a run with its alternatives and operator-registered source identities (strings or {id, aliases}) before judging.
- `futility_verdict`: Read the current verdict for a run/source/domain without recording a judgment.
- `futility_verify_receipt`: Verify a receipt payload {receipt, signature}; total rejection with a reason on malformed/forged input.
- `futility_waste_report`: Waste report for a run: tokens spent after the verdict point, per source and per domain aggregate.