Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add augstentatious/proofpay-agent --skill proofpaygit clone --depth 1 https://github.com/augstentatious/proofpay-agentWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/augstentatious/proofpay-agent/proofpay)<a href="https://agentmods.dev/skills/augstentatious/proofpay-agent/proofpay"><img src="https://agentmods.dev/badge/skills/augstentatious/proofpay-agent/proofpay/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/augstentatious/proofpay-agent/proofpay"><img src="https://agentmods.dev/badge/skills/augstentatious/proofpay-agent/proofpay.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00014 | $0.00259 |
| Opus 5.5 | $0.00006 | $0.00104 |
| Sonnet 5.5 | $0.00003 | $0.00052 |
| Haiku 4.5 | $0.00001 | $0.00026 |
Grade A, and why
proofpay scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
ProofPay
Use ProofPay only for an artifact already present in the operator-owned artifact root.
Flow
- Call
proofpay__create_invoicewithartifact_name, decimalamount, and an optional buyer label. - Return the generated Solana Pay URI and invoice ID to the buyer.
- Call
proofpay__invoice_statusto poll finalized chain state. - Call
proofpay__release_artifactonly after status ispaid. - Return the released file path to the operator/channel delivery layer.
Boundaries
- Recipient, mint, amount ceiling, roots, RPC, and decimals are operator config, not model arguments.
- Never request, expose, log, or transmit wallet private keys.
- Never claim payment before
invoice_statusreturnspaid. - A failed integrity check is terminal for that artifact until an operator restores it.
- Do not release plaintext for
pendingorexpiredinvoices.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 1mo ago First seen · 34 lines · 14 tokens per session scan A 331ed9241b5c
proofpay is a skill published in the GitHub repository augstentatious/proofpay-agent (0 stars, last pushed 2mo ago), licensed MIT. It adds 14 tokens to every session and 259 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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