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 peerjakobsen/smartspender --skill data-schemasgit clone --depth 1 https://github.com/peerjakobsen/smartspenderWrote 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/peerjakobsen/smartspender/data-schemas)<a href="https://agentmods.dev/skills/peerjakobsen/smartspender/data-schemas"><img src="https://agentmods.dev/badge/skills/peerjakobsen/smartspender/data-schemas.svg" alt="Measured on agentmods" 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 | $0.06787 |
| Opus 5 | $0.00013 | $0.03393 |
| Sonnet 5 | $0.00005 | $0.01357 |
| Haiku 4.5 | $0.00003 | $0.00679 |
Grade A, and why
data-schemas 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 7d 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 — 617 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Data Schemas
Purpose
Defines the local CSV file structure that stores all SmartSpender data. All read/write operations use the Filesystem tool to access CSV files in the working directory. Files are created automatically on first use if they don't exist — write the header row first, then append data rows.
1. Transaction Schema
Purpose
Defines the common data format for all transactions in SmartSpender. Every bank adapter normalizes its export into this schema before storing locally.
Schema
| Field | Type | Required | Description |
|---|---|---|---|
| tx_id | string | yes | Unique transaction ID (auto-generated UUID) |
| tx_hash | string | yes | Deduplication hash |
| date | date | yes | Transaction date (YYYY-MM-DD) |
| amount | number | yes | Amount with sign (negative = expense, positive = income) |
| currency | string | yes | ISO currency code (default: DKK) |
| description | string | yes | Cleaned, human-readable description |
| raw_text | string | yes | Original text from bank export, unmodified |
| bank | string | yes | Bank identifier (e.g., enable-banking) |
| account | string | yes | Account identifier from the bank |
| synced_at | datetime | yes | When the transaction was imported (YYYY-MM-DD HH:MM:SS) |
Hash Computation
The tx_hash prevents duplicate imports across multiple sync runs.
Primary formula (when bank provides running balance)
"{account}|{date}|{amount}|{saldo}"
Where:
accountis the account identifier from the bank export (e.g., the Enable Banking account UID for API sync)dateis in YYYY-MM-DD formatamountis formatted to exactly 2 decimal places (e.g.,-55.00)saldois the running balance after the transaction, formatted to exactly 2 decimal places (e.g.,927.83)
The running balance is a natural disambiguator — even two identical purchases at the same merchant on the same day produce different balances.
Fallback formula (when bank does not provide running balance)
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.
- 7d ago First seen · 617 lines · 26 tokens per session scan A c2c04f14e0a9
data-schemas is a skill published in the GitHub repository peerjakobsen/smartspender (5 stars, last pushed 7mo ago), licensed MIT. It adds 26 tokens to every session and 6,787 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 2026-08-31.
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