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 bobadilla-tech/requiems-api-skills --skill mortgage-get-mortgagegit clone --depth 1 https://github.com/bobadilla-tech/requiems-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/bobadilla-tech/requiems-api-skills/mortgage-get-mortgage)<a href="https://agentmods.dev/skills/bobadilla-tech/requiems-api-skills/mortgage-get-mortgage"><img src="https://agentmods.dev/badge/skills/bobadilla-tech/requiems-api-skills/mortgage-get-mortgage/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/bobadilla-tech/requiems-api-skills/mortgage-get-mortgage"><img src="https://agentmods.dev/badge/skills/bobadilla-tech/requiems-api-skills/mortgage-get-mortgage.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 | $0.00026 | $0.00718 |
| Opus 5 | $0.00013 | $0.00359 |
| Sonnet 5 | $0.00005 | $0.00144 |
| Haiku 4.5 | $0.00003 | $0.00072 |
Grade A, and why
mortgage-get-mortgage 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 4d 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 — 81 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Endpoint
GET https://requiems.xyz/v1/finance/mortgage
Calculate Mortgage
Returns the monthly payment, total cost, and full amortization schedule for a fixed-rate mortgage.
Parameters
| Name | Type | Required | Location | Description |
|---|---|---|---|---|
principal |
number | yes | query | Loan amount in your chosen currency (e.g. 300000 for $300,000) |
rate |
number | yes | query | Annual interest rate as a percentage (e.g. 6.5 for 6.5%). Must be greater than 0. |
years |
integer | yes | query | Loan term in years (1–50) |
Response Example
{
"data": {
"principal": 300000,
"rate": 6.5,
"years": 30,
"monthly_payment": 1896.2,
"total_payment": 682632.0,
"total_interest": 382632.0,
"schedule": [
{
"month": 1,
"payment": 1896.2,
"principal": 271.2,
"interest": 1625.0,
"balance": 299728.8
},
{
"month": 2,
"payment": 1896.2,
"principal": 272.67,
"interest": 1623.53,
"balance": 299456.13
}
]
},
"metadata": {
"timestamp": "2026-01-01T00:00:00Z"
}
}
Response Fields
| Field | Type | Description |
|---|---|---|
principal |
number | The original loan amount passed in the request |
rate |
number | The annual interest rate passed in the request |
years |
integer | The loan term in years passed in the request |
monthly_payment |
number | Fixed monthly payment amount (rounded to 2 decimal places) |
total_payment |
number | Total amount paid over the life of the loan |
total_interest |
number | Total interest paid (total_payment minus principal) |
schedule |
array | Full amortization schedule — one entry per month (years × 12 entries) |
schedule[].month |
integer | Month number (1 to years × 12) |
schedule[].payment |
number | Total payment for this month |
schedule[].principal |
number | Portion of this month's payment applied to principal |
schedule[].interest |
number | Portion of this month's payment applied to interest |
schedule[].balance |
number | Remaining loan balance after this payment |
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.
- 4d ago First seen · 81 lines · 26 tokens per session scan A b78b2c8e74d4
mortgage-get-mortgage is a skill published in the GitHub repository bobadilla-tech/requiems-api-skills (2 stars, last pushed 4d ago), licensed MIT. It adds 26 tokens to every session and 718 once invoked, about $0.0001 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 2026-09-08.
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