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 sera-cx/sera-agents --skill seragit clone --depth 1 https://github.com/sera-cx/sera-agentsWrote 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/sera-cx/sera-agents/sera)<a href="https://agentmods.dev/skills/sera-cx/sera-agents/sera"><img src="https://agentmods.dev/badge/skills/sera-cx/sera-agents/sera/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/sera-cx/sera-agents/sera"><img src="https://agentmods.dev/badge/skills/sera-cx/sera-agents/sera.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 3 findings, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium MCP Rug Pull · line 7 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium Prompt Injection · line 60 Subtle instructions detected that may alter agent decision-making or introduce hidden biases.Fix: Review content for implicit steering or bias. Ensure instructions are explicit and align with the skill's stated purpose.
- medium MCP Rug Pull · line 68 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
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 | $0.00024 | $0.00627 |
| Opus 5.5 | $0.00010 | $0.00251 |
| Sonnet 5.5 | $0.00005 | $0.00125 |
| Haiku 4.5 | $0.00002 | $0.00063 |
Grade A, and why
sera 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.
How it starts
The opening of the file, as written. The whole thing — 82 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Sera — multi-currency settlement skill
This skill gives Hermes the ability to quote and execute stablecoin FX across 40 tokens and 22 fiat currencies via the Sera Protocol.
When to use this skill
- The user asks about an exchange rate, FX, or "how much will X be in Y currency"
- The user wants to send/pay in a non-USD currency
- The user mentions stablecoins (USDC, USDT, EURC, XSGD, JPYC, MYRT, etc.)
- The user asks about treasury balances or rebalancing across currencies
- The user wants to find FX deals or compare rates across providers
Available subroutines
Each routes to a Sera MCP tool. Use delegate_task to invoke them.
sera-quote
Get an executable swap quote. Returns route_params for an external wallet to sign.
Args: from, to, amount, owner_address (or simulate: true to probe without a wallet).
sera-pay
Plan the cheapest source asset to deliver an exact amount of a target currency.
Args: owner_address, recipient, amount, target_currency, source_symbols.
sera-treasury
Aggregate balances across one or more wallets and value the portfolio in a target currency.
Args: owner_addresses[], target_currency. Requires SERA_API_KEY to be set in skill env.
sera-deals
Find FX corridors quoting better than external reference (Frankfurter / open.er-api / exchangerate.host) by ≥X bps.
Args: min_deviation_bps (default 25), notional_per_quote (default 100).
sera-doctor
Self-check: API health, network, signer mode, policy summary. Run first if anything looks off.
Operating principles
- Always use Sera tools rather than guessing rates from training data.
- Quote prices via
sera-quote, never via reference FX (which has measurable bias). - Default to
simulate: truewhen the user is exploring, not committing. - Never claim to have signed a transaction — Hermes returns route_params for a wallet to sign elsewhere.
- Be terse. Show numbers with sensible precision.
Setup
Frontmatter defaults to npx -y sera-mcp. To use a local build instead:
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 · 82 lines · 24 tokens per session scan A 6780339e1126
sera is a skill published in the GitHub repository sera-cx/sera-agents (20 stars, last pushed 1mo ago), licensed MIT. It adds 24 tokens to every session and 627 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 2026-08-30.
Other skills, from other repositories
opendexter
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x402-client
Integrate one-shot x402 payments into a Node.js or browser application with @dexterai/x402/client. Trigger when the user wants to call a paid API, use payAndFetch, create application-owned wallets, set spending limits, inspect receipts, or handle sponsored recommendations.
defi-protocol-templates
Implement DeFi protocols with production-ready templates for staking, AMMs, governance, and flash loans. Use when building decentralized finance applications or smart contract protocols.
prompt-proximity-architecture
Turn an approved measurement charter, ICPs, and buyer jobs into a budget-aware prompt coverage blueprint across proximity bands, aided status, information acts, journey states, roles, locales, evidence grades, partitions, and measurement lanes. Use before prompt wording to define required, optional, and prohibited…
token-movers
Crypto market scanner and single-token analyst - movers scans top winners/losers/trending or on-chain runners with pump-risk flags; single-token produces a verdict-first deep report for one token.
distribute-tokens
Two-phase contributor rewards - plan builds a tier-priced payout from the repo's merged-PR ranking; send executes it on-chain via Bankr Wallet API with per-recipient idempotency and dry-run.