Add Vouch402 plugin (x402-metered on-chain risk scores + EAS attestations) - #152
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Recorded the checklist re-verification against real current plugin-spec.md and plugins/vouch402.md, the CONTRIBUTING.md staleness finding (checked against real, active external-PR history before proceeding rather than treating the written policy as automatically current), and the PR itself: base/skills#152 Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
…ions) http-api plugin for Vouch402 (https://vouch402.fly.dev): risk-gated via x402, records an EAS attestation on every successful paid response. Every example in the file (402 body, /v1/metrics shape, dispute signature message) was checked against the live service directly before this PR, not written from memory. Also appends risk-scoring and attestations to the shared tag vocabulary in plugin-spec.md, since neither existing tag covers this capability.
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What
Adds
skills/base-mcp/plugins/vouch402.md, a plugin for Vouch402: an x402-paid HTTP API that returns an on-chain risk score for a Base address and records an EAS attestation of what was delivered on every successful paid response.integration: http-api; the only Base MCP call in the flow issend_callsfor the USDC payment.Also appends two genuinely new tags,
risk-scoringandattestations, to the shared vocabulary inplugin-spec.md(no existing tag covers either capability): the only other change in this diff, per Contribution Scope.Verification
Every example in the plugin file (the 402 payment-requirements body, the
/v1/metricsshape, the dispute signature message) was checked against the live, currently-running service directly before opening this PR, not written from memory. Self-reviewed against the Authoring Checklist; theplugin-reviewskill isn't available in the environment this was authored in, so this is a manual self-review, not a tool-validated one.Disclosure
This plugin file, and the Vouch402 service it documents, were built with substantial AI assistance (Claude Code) working alongside the human author throughout. Noting this since it plausibly matters here.