ynab-mcpb: Instructions file for Codex

AGENTS.md

ynab-mcpb AGENTS.md is an instructions file for Codex, OpenCode from dizzlkheinz/ynab-mcpb. It costs 2,332 tokens per session, scanned A, original, AGPL-3.0.

Project instructions for an MCP server that connects natural-language requests with YNAB, a budgeting app. The instructions belong to the ynab-mcpb project.

In plain words
What is it for?
Maintaining or changing the YNAB MCP server, including work related to bank reconciliation, receipts, and transactions.
Why use it?
It gives the coding agent context for working on this project, so project-specific guidance is not missed.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md.

This is dizzlkheinz/ynab-mcpb's own configuration. It tells Codex and OpenCode how to work on ynab-mcpb 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-mcpb configures →

Reuse

Borrowing it

Nothing to install: this file belongs to dizzlkheinz/ynab-mcpb. 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/dizzlkheinz/ynab-mcpb/master/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/dizzlkheinz/ynab-mcpb

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.

agentmods badge for ynab-mcpb AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/dizzlkheinz/ynab-mcpb/agents-md/github.svg)](https://agentmods.dev/instructions/dizzlkheinz/ynab-mcpb/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/dizzlkheinz/ynab-mcpb/agents-md"><img src="https://agentmods.dev/badge/instructions/dizzlkheinz/ynab-mcpb/agents-md/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.

agentmods 80×15 button for ynab-mcpb AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/dizzlkheinz/ynab-mcpb/agents-md"><img src="https://agentmods.dev/badge/instructions/dizzlkheinz/ynab-mcpb/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 2,332 This file is loaded in full into every session.
When invoked 2,332 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 unknown 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 $0.02332 $0.02332
Opus 5.5 $0.00933 $0.00933
Sonnet 5.5 $0.00466 $0.00466
Haiku 4.5 $0.00233 $0.00233

Measured today against content hash 06a46501e2f5, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

ynab-mcpb 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 today.

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 · 166 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

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. today Changed · +164 lines · +2,326 tokens per session 06a46501e2f5
  2. 2mo ago First seen · 2 lines · 6 tokens per session scan A efeca8a06d97

Subscribe to this mod's changes

ynab-mcpb AGENTS.md is an instructions file published in the GitHub repository dizzlkheinz/ynab-mcpb (9 stars, last pushed yesterday), licensed AGPL-3.0. It adds 2,332 tokens to every session, about $0.0093 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.

Related

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ynab-mcpb AGENTS.md next to 6 instructions from other repositories
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ynab-mcpb AGENTS.mddizzlkheinz/ynab-mcpbInstructions file9yesterdayAGPL-3.0A2,332Codex, OpenCode
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