ynab-sqlite-export: Instructions file for Codex

AGENTS.md

ynab-sqlite-export AGENTS.md is an instructions file for Codex, OpenCode from RuBiCK/ynab-sqlite-export. It costs 293 tokens per session, scanned A, original, MIT.

A set of coding instructions for a small Python tool that exports a YNAB budget into a SQLite database. YNAB is a budgeting application, and SQLite is a local database stored in a file.

In plain words
What is it for?
Use it when changing the exporter or querying its database. It explains the dependency-free design, incremental synchronisation, schema changes, required filters, and protection of tokens and personal database files.
Why use it?
It prevents analyses from treating deleted records as active data or counting transfers as income and spending, which would produce misleading totals.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: reads .claude/ paths.

This is RuBiCK/ynab-sqlite-export's own configuration. It tells Codex and OpenCode how to work on ynab-sqlite-export itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything ynab-sqlite-export configures →

Reuse

Borrowing it

Nothing to install: this file belongs to RuBiCK/ynab-sqlite-export. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/RuBiCK/ynab-sqlite-export/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/RuBiCK/ynab-sqlite-export

Made for: Codex, OpenCode.

Wrote 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.

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README.md
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Your own site
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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.

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Your own site · 80×15
<a href="https://agentmods.dev/instructions/rubick/ynab-sqlite-export/agents-md"><img src="https://agentmods.dev/badge/instructions/rubick/ynab-sqlite-export/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 293 This file is loaded in full into every session.
When invoked 293 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00293 $0.00293
Opus 5.5 $0.00117 $0.00117
Sonnet 5.5 $0.00059 $0.00059
Haiku 4.5 $0.00029 $0.00029

Measured 2mo ago against content hash d0e2163ade1f, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

ynab-sqlite-export AGENTS.md 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 2mo 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.

AGENTS.md · 24 lines

What it actually says

Agent guide

This repo is a single-file tool: ynab_to_sqlite.py dumps a YNAB account into ynab.db (SQLite). Stdlib-only Python 3, no build step, no tests to run beyond executing the script itself.

Working on the tool

  • Keep it dependency-free and generic: no hardcoded budget IDs, category names, currencies, or personal assumptions — anyone's YNAB token must work.
  • Incremental sync relies on YNAB's server_knowledge delta cursors stored in the sync_state table. If you change the schema, bump users via --full (which drops and recreates all tables) and say so in the README.
  • Never commit .env or *.db (both gitignored) — they contain the maintainer's real token and real financial data.

Querying a ynab.db produced by this tool

Full guidance (schema, pitfalls, ready-made SQL) lives in .claude/skills/ynab-db/SKILL.md — read it before writing SQL. The two mistakes that silently corrupt every analysis: forgetting deleted = 0 (deletes are soft) and counting transfers (transfer_account_id IS NOT NULL) as income/spending.

Changes

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.

  1. 2mo ago First seen · 24 lines · 293 tokens per session scan A d0e2163ade1f

Subscribe to this mod's changes

ynab-sqlite-export AGENTS.md is an instructions file published in the GitHub repository RuBiCK/ynab-sqlite-export (12 stars, last pushed 3mo ago), licensed MIT. It adds 293 tokens to every session, about $0.0012 per session on Opus 5.5. 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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