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 apideck-libraries/api-skills --skill apideck-mcp-month-end-closegit clone --depth 1 https://github.com/apideck-libraries/api-skillsWrote 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/apideck-libraries/api-skills/apideck-mcp-month-end-close)<a href="https://agentmods.dev/skills/apideck-libraries/api-skills/apideck-mcp-month-end-close"><img src="https://agentmods.dev/badge/skills/apideck-libraries/api-skills/apideck-mcp-month-end-close/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/apideck-libraries/api-skills/apideck-mcp-month-end-close"><img src="https://agentmods.dev/badge/skills/apideck-libraries/api-skills/apideck-mcp-month-end-close.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 | $0.00086 | $0.01307 |
| Opus 5 | $0.00043 | $0.00654 |
| Sonnet 5 | $0.00017 | $0.00261 |
| Haiku 4.5 | $0.00009 | $0.00131 |
Grade A, and why
apideck-mcp-month-end-close 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 12d 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 — 118 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Month-end close snapshot (Apideck MCP)
When the user wants a one-shot financial snapshot, prefer apideck-month-end-close-check over fetching the four reports individually. The workflow fans out aged creditors, aged debtors, balance sheet, and profit-and-loss in parallel against the connected accounting service and returns one aggregated object.
When this is the right tool
| User intent | Tool |
|---|---|
| "Run the month-end close", "P&L plus balance sheet for last month", "Aged AP/AR snapshot as of March 31" | apideck-month-end-close-check ✓ |
| "Just the P&L" | accounting-profit-and-loss-get directly |
| "Just aged creditors" | accounting-aged-creditors-get directly |
| "Reconcile bank statements" | Out of scope — use the connector's native reconciliation |
IMPORTANT RULES
- READ-ONLY, idempotent. Safe to call repeatedly — no confirmation needed. The tool fetches data; it doesn't post anything.
- OMIT
report_as_of_dateto use today. Most users running a month-end ask for "last month", in which case pass an explicitYYYY-MM-DDlike"2026-03-31". - EXPECT partial results. Connector coverage varies — Odoo doesn't implement aged-creditors, Moneybird doesn't implement balance-sheet, etc. The workflow returns
{ unsupported: true, reason }for steps the connector can't fulfill, plus a top-levelwarnings[]array. Surface these to the user instead of treating them as failures. isError: trueonly fires when every report failed — typically a missing connection or expired credentials. Partial snapshots come back asisError: falseso the agent can still extract value.
Argument map
| Arg | Required | Default | Notes |
|---|---|---|---|
report_as_of_date |
no | today (YYYY-MM-DD) | Cutoff date for aged reports + balance sheet. |
x-apideck-service-id |
no | first accounting connection | E.g. "xero", "quickbooks". |
Result shape
Full success
{
"report_as_of_date": "2026-03-31",
"service_id": "xero",
"aged_creditors": { "summary": [...] },
"aged_debtors": { "summary": [...] },
"balance_sheet": { "assets": 100000, ... },
"profit_and_loss":{ "revenue": 250000, ... }
}
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.
- 12d ago First seen · 118 lines · 86 tokens per session scan A a8d6bb76e359
apideck-mcp-month-end-close is a skill published in the GitHub repository apideck-libraries/api-skills (3 stars, last pushed 13d ago), licensed Apache-2.0. It adds 86 tokens to every session and 1,307 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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