---
title: "ddg-skills-starter"
description: "Five free guardrail skills for agents that touch money, audits, or outbound messaging: fleet audit starter, UNKNOWN-is-not-pass, agent price-parity check, cron outreach safety gate, and x402 facilitator health check."
canonical: https://agentpluginsdirectory.com/plugins/ddg-skills-starter
last-updated: 2026-10-21
---

# ddg-skills-starter
Five free guardrail skills for agents that touch money, audits, or outbound messaging: fleet audit starter, UNKNOWN-is-not-pass, agent price-parity check, cron outreach safety gate, and x402 facilitator health check.
- Slug: ddg-skills-starter
- Publisher: Daedalus Development Group
- Repository: https://github.com/0xcircuitbreaker/ddg-agent-plugins
- Manifest: plugins/ddg-skills-starter/plugin.json
- Version: 1.0.0
- License: MIT
- Category (editorial): other
- Skills: 5 (agent-price-parity-check, cron-outreach-safety-gate, ddg-fleet-audit-starter, facilitator-health-check, unknown-is-not-pass)
- MCP servers: 0
- Stars: 0
- Repository created: 2026-10-18
- Repository last pushed: 2026-10-18
- Publisher type: User
- Listing: https://agentpluginsdirectory.com/plugins/ddg-skills-starter
- Schema: https://agent-plugins.org/schemas/1.0.0/plugin.schema.json

## What ddg-skills-starter does, in the publisher's words

Five free guardrail skills for agents that touch money, audits, or outbound messaging. No server, no payment, no dependencies: each skill is one SKILL.md the model loads when its trigger matches.

Each one is a distilled failure mode from operating a 400+-route paid edge:

- UNKNOWN is not PASS: the expensive audit failure is a missing verdict rendered as a green check. Forces PASS / FAIL / UNKNOWN on every claim.
- Price parity: the docs price, the 402 price, and the cached discovery price drift apart. One 5-minute check for all three.
- Cron outreach gate: wrong sender identity, wrong audience, no rate ceiling, zombie crons. Catches all four before the domain gets burned.
- Facilitator health: supported schemes/networks, envelope contract, rate-limit shape, settle-gas health, indexing behavior. Five probes.

From the project README, punctuation lightly normalized. Full text: https://raw.githubusercontent.com/0xcircuitbreaker/ddg-agent-plugins/HEAD/plugins/ddg-skills-starter/README.md

## Skills

- agent-price-parity-check: Verify an agent-payable API charges what it advertises: fetch the 402 challenge, compare against the published OpenAPI/pricing page, and flag drift. Use when publishing per-call API prices, before repricing, or when a buyer disputes a charge. One check, five minutes, works on any x402-style API.
- cron-outreach-safety-gate: Pre-flight checklist before letting an automated agent send outbound email, post publicly, or run scheduled outreach crons. Use when enabling any cron that sends messages, restarting outreach automation, or handing an agent a sender identity, prevents the classic spam-trap, wrong-identity, and runa…
- ddg-fleet-audit-starter: Start here for auditing agent fleets: understand the proof-vs-claims distinction, check whether your runs produce verifiable provenance, and pick the right DDG fleet-audit skill. Free companion to the paid suite; also documents the DDG x402 endpoints for tine verification at agents.daedalusdevelopm…
- facilitator-health-check: Guardrail: preflight ANY x402 facilitator before relying on it, supported schemes/networks, envelope contract, rate-limit shape, settle-gas health, and discovery-indexing behavior. Use when picking a facilitator, before pointing production traffic at one, or when settles start failing mysteriously.
- unknown-is-not-pass: Audit guardrail: treat missing evidence as a finding, never as a pass. Use when reviewing agent outputs, security scans, compliance checklists, or any report that claims something is "fine", force the report to distinguish PASS from UNKNOWN before you act on it.

Descriptions come from the frontmatter of each SKILL.md, punctuation lightly normalized.