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 newline53/newline-mcp-server --skill managing-users-and-accountsgit clone --depth 1 https://github.com/newline53/newline-mcp-serverWrote 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/newline53/newline-mcp-server/managing-users-and-accounts)<a href="https://agentmods.dev/skills/newline53/newline-mcp-server/managing-users-and-accounts"><img src="https://agentmods.dev/badge/skills/newline53/newline-mcp-server/managing-users-and-accounts/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/newline53/newline-mcp-server/managing-users-and-accounts"><img src="https://agentmods.dev/badge/skills/newline53/newline-mcp-server/managing-users-and-accounts.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 | $0.00079 | $0.01053 |
| Opus 5 | $0.00039 | $0.00526 |
| Sonnet 5 | $0.00016 | $0.00211 |
| Haiku 4.5 | $0.00008 | $0.00105 |
Grade A, and why
managing-users-and-accounts 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 11d 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 — 187 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Managing Users and Accounts
A general-purpose workflow for customer lookup and synthetic account setup.
Use this broader skill when the task spans discovery, eligibility checks, and account creation.
For narrow tasks, the more specific skills customer-overview and new-account-setup
may be faster.
Guardrails
- Resolve people and accounts to UIDs before taking action.
- Confirm with the user before calling
create-synthetic-accountordelete-synthetic-accounts. - Use sandbox credentials for testing.
- Treat KYC and locked status as blockers for funding and transfer workflows.
Step 1 — Find the Customer
If the user gives a UID directly:
get-customer uid=<customer_uid>
Otherwise search first:
list-customers (filter by first_name, last_name, email, external_uid, or pool_uid)
Record:
uidexternal_uidcustomer_typestatuskyc_statusandkyc_status_reasonslocked/ lock-related fields if presentpool_uidstotal_balance
Step 2 — Check Whether the Customer Is Eligible for Account Activity
Before opening or using accounts, verify:
- customer
statusis active kyc_statusis approved or otherwise acceptable for the requested workflow- the customer is not locked
If these checks fail, stop and explain the blocker before attempting account creation or transfers.
Step 3 — Review Existing Synthetic Accounts
get-synthetic-accounts
Identify the customer's accounts by matching pool membership, naming, or known UIDs. If you already know an account UID, inspect it directly:
get-synthetic-account uid=<synthetic_account_uid>
For each relevant account, note:
uid,name,statussynthetic_account_type_uidsynthetic_account_categorypool_uidnet_usd_balance,net_usd_pending_balance,net_usd_available_balancerouting_number,account_number_last_four- payment rail blocks such as
ach,wire, orinstant_payment
Step 4 — Review Available Account Types
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.
- 11d ago First seen · 187 lines · 79 tokens per session scan A 5a1d9124beff
managing-users-and-accounts is a skill published in the GitHub repository newline53/newline-mcp-server (2 stars, last pushed 4mo ago), licensed Apache-2.0. It adds 79 tokens to every session and 1,053 once invoked, about $0.0004 per session on Opus 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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