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 travel-rule-batch-with-merkle-auditgit 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/travel-rule-batch-with-merkle-audit)<a href="https://agentmods.dev/skills/postoaklabs/ainumbers/travel-rule-batch-with-merkle-audit"><img src="https://agentmods.dev/badge/skills/postoaklabs/ainumbers/travel-rule-batch-with-merkle-audit/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/travel-rule-batch-with-merkle-audit"><img src="https://agentmods.dev/badge/skills/postoaklabs/ainumbers/travel-rule-batch-with-merkle-audit.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 | $0.00048 | $0.00554 |
| Opus 5.5 | $0.00019 | $0.00222 |
| Sonnet 5.5 | $0.00010 | $0.00111 |
| Haiku 4.5 | $0.00005 | $0.00055 |
Grade A, and why
travel-rule-batch-with-merkle-audit 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
Travel-rule batch with Merkle audit
Validate a transfer batch under TFR, then verify its Merkle audit batch.
Prompt
Prove a travel-rule batch and leave an audit path that does not depend on your systems.
- Build a synthetic batch of 20 transfers with complete originator/beneficiary fields and 3 deliberately defective ones.
- Call validate_tfr_travel_rule_batch. Record per-transfer verdicts; confirm exactly the 3 defectives fail and quote their defect codes.
- Call verify_merkle_batch on the batch's audit root with one inclusion proof per defective transfer. Confirm each proof resolves to the root.
- Negative test: swap two transfers in the batch, re-verify the inclusion proofs, confirm they fail against the same root. Revert.
- Run the chain mica-travel-rule with run_chain for the composed regulatory verdict. Record execution_hash.
- build_session_receipt over the batch validation and Merkle checks; give me the ledger link.
- Write the note for compliance: batch size, defect classes, the root, and the ledger link, so the receiving VSP re-verifies inclusions without asking for your files. 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 8e6fa494c410
- 19d ago First seen · 40 lines · 48 tokens per session scan A 77c6a6ae9f52
travel-rule-batch-with-merkle-audit is a skill published in the GitHub repository PostOakLabs/ainumbers (11 stars, last pushed yesterday), licensed MIT. It adds 48 tokens to every session and 554 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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