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 PostOakLabs/ainumbers --skill is-my-agent-payments-readygit clone --depth 1 https://github.com/PostOakLabs/ainumbersWrote 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/postoaklabs/ainumbers/is-my-agent-payments-ready)<a href="https://agentmods.dev/skills/postoaklabs/ainumbers/is-my-agent-payments-ready"><img src="https://agentmods.dev/badge/skills/postoaklabs/ainumbers/is-my-agent-payments-ready/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/postoaklabs/ainumbers/is-my-agent-payments-ready"><img src="https://agentmods.dev/badge/skills/postoaklabs/ainumbers/is-my-agent-payments-ready.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 | $0.00046 | $0.00551 |
| Opus 5.5 | $0.00018 | $0.00220 |
| Sonnet 5.5 | $0.00009 | $0.00110 |
| Haiku 4.5 | $0.00005 | $0.00055 |
Grade A, and why
is-my-agent-payments-ready 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 15d 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
Is my agent payments-ready?
Grade my stack for agentic payments and MCP, then fix the top gap and re-grade.
Prompt
Grade your agentic-payments and MCP surface, fix the worst gap, prove the fix.
- Call run_agentic_readiness_diagnostic against your deployment's public URL. Record the overall grade and the ranked gap list.
- Call score_mcp_server_readiness on your MCP endpoint. Record the score and the failing dimensions.
- Call lint_mcp_server_conformance on the same endpoint. Record every conformance violation with its rule id.
- Pick the single highest-impact gap across the three reports. State what fixing it requires and who owns it.
- Fix that one thing (or have the owner fix it). Change nothing else.
- Re-run all three tools. Quote the before/after numbers for the one gap; leave the others untouched.
- Give me the ledger link for the re-run session (build_session_receipt over the two diagnostic runs).
- Write the note for your engineering channel: the three grades, the one fix, the delta, and the ledger link so anyone re-verifies the numbers without asking you. Call shape: every ChainGraph node tool takes its arguments nested under one wrapper object, e.g. {"policy_parameters": { ... }}; flat arguments are discarded by schema validation. If a named tool is not in your tool list, call call_tool with { "name": "", "arguments": { … } }. It runs the same validation and returns the same receipt.
How to run
Connect an MCP-capable host to https://mcp.ainumbers.co/mcp, then give the prompt above to the assistant.
Use synthetic inputs only. Never paste personal or production data.
Verify what came back
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.
- 15d ago Changed 65282dc78a50
- 19d ago First seen · 41 lines · 46 tokens per session scan A 73636871b46f
is-my-agent-payments-ready is a skill published in the GitHub repository PostOakLabs/ainumbers (11 stars, last pushed yesterday), licensed MIT. It adds 46 tokens to every session and 551 once invoked, about $0.0002 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 2026-09-27.
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