Xpersona
agentCLAWHUBUnverified

SettlementWitness

Generate a signed delivery receipt in under 30 seconds. Skill: SettlementWitness Owner: nutstrut Summary: Generate a signed delivery receipt in under 30 seconds. Tags: latest:0.0.6 Version history: v0.0.6 | 2026-02-21T00:44:16.707Z | user v0.0.6 Improved first-run onboarding experience. Added immediate “Run This Now” execution block Added concrete success indicators (PASS / receipt_id / sig) Simplified description to focus on outcome Reduced friction for first execution C

OpenClaw
View on ClawHub

Rank

62

Safety

84

Downloads

1.3k

Updated

Apr 15, 2026

Version

0.0.6

Source

CLAWHUB

About

What it does, and when to use it.

Capability contract not published. No trust telemetry is available yet. 1.3K downloads reported by the source. Last updated 4/15/2026.

Avoid when

  • Contract metadata is missing or unavailable for deterministic execution.

Risk flags: missing_or_unavailable_contract, trust_data_unavailable, schema_references_missing

Public facts

Every fact links back to the source it came from.

Vendor
Clawhubvendor · observed Apr 15, 2026
Protocol compatibility
OpenClawcompatibility · observed Apr 15, 2026
Adoption signal
1.3K downloadsadoption · observed Apr 15, 2026
Latest release
0.0.6release · observed Feb 21, 2026
Handshake status
UNKNOWNsecurity

Install and run

Setup complexity: low.

clawhub skill install kn71nqqcxyxyst7f2s3f2nzz0h80jf78:settlement-witness
  1. Setup complexity is classified as HIGH. You must provision dedicated cloud infrastructure or an isolated VM. Do not run this directly on your local workstation.
  2. Final validation: Expose the agent to a mock request payload inside a sandbox and trace the network egress before allowing access to real customer data.

Contract: missing

curl -s "https://www.xpersona.co/api/v1/agents/clawhub-nutstrut-settlement-witness/snapshot"

Documentation

CLAWHUB

9,711 characters of source documentation, loaded on request.

Extracted files

3 files captured from the source.

settlement-witness/SKILL.md

---
name: settlement-witness
description: "OpenClaw skill: fetch replay-stable receipts (signed SAR v0.1) from SettlementWitness. Stateless. Deterministic."
---

# SettlementWitness (OpenClaw Skill)

Use SettlementWitness to produce a replay-stable receipt (SAR v0.1) for task settlement.

## Recommended usage (MCP)
POST https://defaultverifier.com/mcp

Health check:
GET https://defaultverifier.com/mcp-healthz

The MCP endpoint returns the exact SettlementWitness receipt JSON.

## Direct REST alternative
POST https://defaultverifier.com/settlement-witness
GET  https://defaultverifier.com/settlement-witness  (returns JSON help payload)

## Run this now (copy/paste)

### Linux/macOS
```bash
curl -sS https://defaultverifier.com/settlement-witness \
  -H "Content-Type: application/json" \
  -d '{"task_id":"example-001","spec":{"expected":"foo"},"output":{"expected":"foo"}}'
```

### Windows PowerShell (IMPORTANT)
PowerShell aliases `curl` to `Invoke-WebRequest`, which often causes **422 Invalid JSON**.
Use `curl.exe` and a file payload:

```powershell
@'
{"task_id":"example-001","spec":{"expected":"foo"},"output":{"expected":"foo"}}
'@ | Out-File -Encoding ascii -NoNewline body.json

curl.exe -X POST https://defaultverifier.com/settlement-witness `
  -H "Content-Type: application/json" `
  --data-binary "@body.json"
```

## Important: install/download does NOT execute
Many clients will only do discovery (e.g. `tools/list`).
To generate a receipt you must trigger a real tool run (MCP `tools/call` for `settlement_witness`) or send the REST POST above.


## Required input
- task_id (string)
- spec (object)
- output (object)

## Example REST request
{
  "task_id": "example-002",
  "spec": { "expected": "foo" },
  "output": { "expected": "foo" }
}

## Interpretation
- PASS → verified completion
- FAIL → do not auto-settle
- INDETERMINATE → retry or escalate
- receipt_id → stable identifier
- reason_code → canonical failure reason (ex: SPEC_MISMATCH)

## Safety notes
- Never send secrets in spec/output.
- Keep spec/output deterministic.

SKILL.md

---
name: settlement-witness
description: "Generate a signed delivery receipt in under 30 seconds."
---

# SettlementWitness

Generate a signed delivery receipt in under 30 seconds.

## Run This Now

settlement_witness({
  task_id: "quickstart-001",
  spec: { value: 1 },
  output: { value: 1 }
})

You should receive:

PASS  
SPEC_MATCH  
receipt_id starting with sha256:  
sig starting with base64url:  

Example (truncated):

{
  "receipt_v0_1": {
    "verdict": "PASS",
    "reason_code": "SPEC_MATCH",
    "receipt_id": "sha256:3adb22d0...",
    "sig": "base64url:AbC..."
  }
}

SettlementWitness produces cryptographically signed delivery receipts that third-party systems can verify offline.

## Common Failure Modes

**If you see 422**  
Missing required field. Ensure `task_id`, `spec`, and `output` are present.

**If you see INDETERMINATE / EVALUATOR_TIMEOUT**  
Upstream evaluator unreachable. This is still a valid signed receipt.

**If you see FAIL / SPEC_MISMATCH**  
Your output does not match your spec. Compare structures.

## Live Examples / Fixtures

See working PASS, FAIL, and INDETERMINATE examples here:  
fixtures/

## Endpoints

MCP:  
POST https://defaultverifier.com/mcp

Direct REST:  
POST https://defaultverifier.com/settlement-witness

## Safety Notes

Never send secrets in `spec` or `output`. Keep inputs deterministic.

_meta.json

{
  "ownerId": "kn71nqqcxyxyst7f2s3f2nzz0h80jf78",
  "slug": "settlement-witness",
  "version": "0.0.6",
  "publishedAt": 1771634656707
}

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Machine-readable data

The same record, as JSON, for agents and crawlers.

{
  "facts": [
    {
      "factKey": "vendor",
      "category": "vendor",
      "label": "Vendor",
      "value": "Clawhub",
      "href": "https://clawhub.ai/nutstrut/settlement-witness",
      "sourceUrl": "https://clawhub.ai/nutstrut/settlement-witness",
      "sourceType": "profile",
      "confidence": "medium",
      "observedAt": "2026-04-15T00:45:39.800Z",
      "isPublic": true
    },
    {
      "factKey": "protocols",
      "category": "compatibility",
      "label": "Protocol compatibility",
      "value": "OpenClaw",
      "href": "https://www.xpersona.co/api/v1/agents/clawhub-nutstrut-settlement-witness/contract",
      "sourceUrl": "https://www.xpersona.co/api/v1/agents/clawhub-nutstrut-settlement-witness/contract",
      "sourceType": "contract",
      "confidence": "medium",
      "observedAt": "2026-04-15T00:45:39.800Z",
      "isPublic": true
    },
    {
      "factKey": "traction",
      "category": "adoption",
      "label": "Adoption signal",
      "value": "1.3K downloads",
      "href": "https://clawhub.ai/nutstrut/settlement-witness",
      "sourceUrl": "https://clawhub.ai/nutstrut/settlement-witness",
      "sourceType": "profile",
      "confidence": "medium",
      "observedAt": "2026-04-15T00:45:39.800Z",
      "isPublic": true
    },
    {
      "factKey": "latest_release",
      "category": "release",
      "label": "Latest release",
      "value": "0.0.6",
      "href": "https://clawhub.ai/nutstrut/settlement-witness",
      "sourceUrl": "https://clawhub.ai/nutstrut/settlement-witness",
      "sourceType": "release",
      "confidence": "medium",
      "observedAt": "2026-02-21T00:44:16.707Z",
      "isPublic": true
    },
    {
      "factKey": "handshake_status",
      "category": "security",
      "label": "Handshake status",
      "value": "UNKNOWN",
      "href": "https://www.xpersona.co/api/v1/agents/clawhub-nutstrut-settlement-witness/trust",
      "sourceUrl": "https://www.xpersona.co/api/v1/agents/clawhub-nutstrut-settlement-witness/trust",
      "sourceType": "trust",
      "confidence": "medium",
      "observedAt": null,
      "isPublic": true
    }
  ],
  "events": [
    {
      "eventType": "release",
      "title": "Release 0.0.6",
      "description": "v0.0.6 Improved first-run onboarding experience. Added immediate “Run This Now” execution block Added concrete success indicators (PASS / receipt_id / sig) Simplified description to focus on outcome Reduced friction for first execution Clarified common failure modes No protocol or receipt format changes.",
      "href": "https://clawhub.ai/nutstrut/settlement-witness",
      "sourceUrl": "https://clawhub.ai/nutstrut/settlement-witness",
      "sourceType": "release",
      "confidence": "medium",
      "observedAt": "2026-02-21T00:44:16.707Z",
      "isPublic": true
    }
  ]
}

Record generated Oct 9, 2026.

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