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 auzroz/ynab-mcp --skill ynab-budgeting-foundationsgit clone --depth 1 https://github.com/auzroz/ynab-mcpWrote 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/auzroz/ynab-mcp/ynab-budgeting-foundations)<a href="https://agentmods.dev/skills/auzroz/ynab-mcp/ynab-budgeting-foundations"><img src="https://agentmods.dev/badge/skills/auzroz/ynab-mcp/ynab-budgeting-foundations/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/auzroz/ynab-mcp/ynab-budgeting-foundations"><img src="https://agentmods.dev/badge/skills/auzroz/ynab-mcp/ynab-budgeting-foundations.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 | $0.00095 | $0.00860 |
| Opus 5 | $0.00048 | $0.00430 |
| Sonnet 5 | $0.00019 | $0.00172 |
| Haiku 4.5 | $0.00010 | $0.00086 |
Grade A, and why
ynab-budgeting-foundations 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 — 82 lines — stays where its author put it; the contents beside it link to each section on GitHub.
YNAB Budgeting Foundations
What this does
Teaches the "why" behind zero-based/envelope budgeting as a general concept — not YNAB mechanics first — and explains the behavioral-finance reasoning behind each of YNAB's Four Rules, for someone who's skeptical of budgeting, new to it, or has tried and quit before.
When to use this skill
- "I don't get why budgeting works"
- "Why can't I just track spending?"
- "What is zero-based budgeting?"
- "Why does Give Every Dollar a Job matter?"
- "I've tried budgets before and quit"
- "Explain the Four Rules like I'm new"
Should NOT trigger on: requests to actually set up a first budget (use
ynab-first-budget-setup) — this is the pure "why" layer beneath everything
else, not an action skill.
Approach
This is a coaching-mode skill — no MCP tools required. Work through:
-
The core idea: zero-based/envelope budgeting means every dollar is assigned a job before it's spent, in contrast to after-the-fact spending tracking. Explain the behavioral distinction plainly: tracking tells you what happened; budgeting decides what happens before it does. Envelope budgeting specifically creates a hard, real-time spending stop — you can't overspend an envelope that's already empty — which is a different psychological mechanism than a dashboard you check later.
-
The Four Rules, and why each one works, not just what to click:
- Give Every Dollar a Job — decide before spending; eliminates mental-accounting drift ("is this actually affordable right now?") and reduces the anxiety of not knowing.
- Embrace Your True Expenses — irregular costs (car repairs, annual renewals) stop being "surprises" once they're broken into monthly contributions; removes the shock that derails a budget.
- Roll With the Punches — overspending is fixed by moving money, not by guilt or starting over; this is what makes the system durable instead of something people abandon after one bad month.
- Age Your Money — building a buffer between earning and spending reduces paycheck-to-paycheck anxiety and gives room to actually follow the other three rules instead of reacting in real time.
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 · 82 lines · 95 tokens per session scan A 6aadc84014cb
ynab-budgeting-foundations is a skill published in the GitHub repository auzroz/ynab-mcp (3 stars, last pushed 2mo ago), licensed MIT. It adds 95 tokens to every session and 860 once invoked, about $0.0005 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.
Other skills, from other repositories
stripe-link-wallet
Agent wallet on the Stripe Link CLI (link-cli). Connect the wallet, then buy, purchase and pay for things on the user's behalf via approved spend requests, one-time-use cards, and 402 / Machine Payment Protocol (MPP) payments.
stride-analysis-patterns
Apply STRIDE methodology to systematically identify threats. Use when analyzing system security, conducting threat modeling sessions, or creating security documentation.
blind-spot-pass
Use before starting work in a domain you don't know well, to surface the "unknown unknowns" — the things you don't even know to ask about — and learn just enough to prompt and decide well. Implements the "blind spot pass" pattern from Anthropic's Fable "finding your unknowns" field guide. Triggers when you say "I'm…
prompts-chat
Use when searching, installing, or improving AI skills and prompts via prompts.chat or skills.sh. Triggers on skill search, prompt lookup, install skill, improve prompt, prompts.chat.
self-assessment
Interactive skill assessment with personalized learning path generation.
talk-stage5-script
Produces a complete 5-act pitch with speaker notes, a slide-by-slide specification, and a ready-to-paste Kimi prompt for AI slide generation. Requires validated angle and title from Stage 4. Use when you have a confirmed talk angle and need the full script, slide spec, and AI-generated presentation prompt.