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-windfall-plannergit 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-windfall-planner)<a href="https://agentmods.dev/skills/auzroz/ynab-mcp/ynab-windfall-planner"><img src="https://agentmods.dev/badge/skills/auzroz/ynab-mcp/ynab-windfall-planner/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-windfall-planner"><img src="https://agentmods.dev/badge/skills/auzroz/ynab-mcp/ynab-windfall-planner.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 | $0.00087 | $0.00898 |
| Opus 5 | $0.00044 | $0.00449 |
| Sonnet 5 | $0.00017 | $0.00180 |
| Haiku 4.5 | $0.00009 | $0.00090 |
Grade A, and why
ynab-windfall-planner 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 9d 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 — 95 lines — stays where its author put it; the contents beside it link to each section on GitHub.
YNAB Windfall Planner
What this does
Provides a decision framework for a one-time lump sum so it gets actively allocated instead of dissolving into a checking balance and quietly getting spent. Walks through a prioritization order and flags "getting a month ahead" as a particularly high-leverage use for anyone currently paycheck-to-paycheck.
When to use this skill
- "I just got a bonus, what should I do with it?"
- "I'm getting a tax refund"
- "I inherited some money"
- "I have extra cash, what's the smart move?"
Should NOT trigger on: executing the chosen allocation once decided (use
ynab-assign-money) — this skill is the decision framework, not the
execution step. It also doesn't replace the depth of ynab-debt-payoff-planner
or ynab-emergency-fund-builder — it decides the split across them.
Workflow
Step 1 (if MCP-connected): Check current state
Call MCP tool: ynab_quick_summary
Call MCP tool: ynab_category_balances
Call MCP tool: ynab_goal_progress
Step 2: Walk the prioritization order
Present this order, explaining that windfalls are a decision point, not something to let dissolve into a balance:
- High-interest debt — if a credit card or similar is carrying a balance, this is usually the highest-return use of the money.
- Emergency fund — if the buffer is thin or nonexistent, top it up next
(see
ynab-emergency-fund-builderfor staged targets). - Behind true-expense categories — catch up anything that's fallen
short (see
ynab-true-expenses). - Existing savings goals — accelerate a goal already in motion (house,
car — see
ynab-big-goal-savings-planner). - Discretionary — it's fine, and recommended, to spend some of it on something enjoyable; the point is an active decision, not zero fun.
Step 3: Flag "getting a month ahead" as an accelerant
If the person describes living paycheck-to-paycheck, note that a windfall is a common and effective way to jump-start funding next month's expenses ahead of time — one of YNAB's highest-leverage milestones.
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.
- 9d ago First seen · 95 lines · 87 tokens per session scan A 82d1401e6e1f
ynab-windfall-planner is a skill published in the GitHub repository auzroz/ynab-mcp (3 stars, last pushed 2mo ago), licensed MIT. It adds 87 tokens to every session and 898 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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