sparebank1-cli: Instructions file for Codex

AGENTS.md

sparebank1-cli AGENTS.md is an instructions file for Codex, OpenCode from magnusrodseth/sparebank1-cli. It costs 1,310 tokens per session, scanned C, original, MIT.

Project instructions for installing and using sb1, an unofficial command-line tool for SpareBank 1 personal banking. It can access accounts and transactions and make transfers through the bank’s API after BankID authentication.

In plain words
What is it for?
It is for installing sb1, configuring bank access, listing accounts, browsing or exporting transactions, and making transfers with machine-readable JSON output.
Why use it?
Banking commands need setup, authentication, and awareness of the bank’s usage terms. The instructions explain the installation and one-time access configuration an agent should not perform on the user’s behalf.

Instructions file for CodexOpenCode

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

This is magnusrodseth/sparebank1-cli's own configuration. It tells Codex and OpenCode how to work on sparebank1-cli 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 sparebank1-cli configures →

Reuse

Borrowing it

Nothing to install: this file belongs to magnusrodseth/sparebank1-cli. 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/magnusrodseth/sparebank1-cli/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/magnusrodseth/sparebank1-cli

Made for: Codex, OpenCode.

Wrote this? Show the measurements

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README.md
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Per session 1,310 This file is loaded in full into every session.
When invoked 1,310 The same file — it is already loaded in full.
Security scan C 2 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 $0.01310 $0.01310
Opus 5.5 $0.00524 $0.00524
Sonnet 5.5 $0.00262 $0.00262
Haiku 4.5 $0.00131 $0.00131

Measured today against content hash 1455ace754e5, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade C, and why

sparebank1-cli AGENTS.md scanned grade C with 2 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.

Downloads and executes remote codehighSupply chain

curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.

curl -fsSL https://raw.githubusercontent.com/magnusrodseth/sparebank1-cli/main/install.sh | bash

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -fsSL https://raw.githubusercontent.com/magnusrodseth/sparebank1-cli/main/install.sh | bash
AGENTS.md · 109 lines

How it starts

The opening of the file, as written. The whole thing — 109 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md

Guidance for AI agents helping a user set up and use sb1, the SpareBank 1 personal banking CLI. If you are an agent and the user pointed you at this repository, start here.

What this is

sb1 is a command-line tool for the SpareBank 1 personal banking API. It lists accounts, browses and exports transactions, and makes transfers, authenticated with BankID over OAuth 2.0. Every command supports --json for machine-readable output. It is personal and unofficial; usage is governed by the bank's terms (see TERMS.md).

Install the binary

Prefer the prebuilt binary. It needs no Rust toolchain and does not call the GitHub API (so it is not affected by API rate limits):

curl -fsSL https://raw.githubusercontent.com/magnusrodseth/sparebank1-cli/main/install.sh | bash
  • Installs to ~/.local/bin (override with SB1_INSTALL_DIR).
  • Pin a version with SB1_VERSION=v1.1.0.
  • If the script reports that the install dir is not on PATH, add it before continuing, then verify with sb1 --help.
  • macOS and Linux only. On other platforms, build from source: cargo install --path ..

Set up access (the user must do this once)

sb1 talks to the bank on the user's behalf, so it needs their own API client and a BankID login. You cannot do these steps for them:

  1. The user registers a personal client at developer.sparebank1.no and notes the client_id and client_secret.
  2. The redirect URI on that app must be exactly http://localhost:12345/callback.
  3. Provide the credentials via a git-ignored .env (cp .env.example .env, then fill in CLIENT_ID / CLIENT_SECRET).
  4. Run sb1 login — this opens a browser for the interactive BankID flow. After login, the token is saved to the secret store and .env can be deleted.

Secret storage backend is chosen with SB1_STORE (keychain default, op for 1Password, file for headless automation). See README.md → "Secret storage".

Read the full file on GitHub · 109 lines

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 · +19 lines · +291 tokens per session 1455ace754e5
  2. 9d ago Changed · +15 lines · +200 tokens per session 95b2f9312a85
  3. 1mo ago First seen · 75 lines · 819 tokens per session scan C 5b7f67491351

Subscribe to this mod's changes

sparebank1-cli AGENTS.md is an instructions file published in the GitHub repository magnusrodseth/sparebank1-cli (23 stars, last pushed yesterday), licensed MIT. It adds 1,310 tokens to every session, about $0.0052 per session on Opus 5.5. A static security scan graded it C with 2 findings (downloads and executes remote code, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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