stubfin-bot

stubfin-bot is a plugin for Claude Code from curie-eng/curie. Its manifest loads nothing; the 1 skill it bundles cost 43 tokens per session together, scanned A, original, Apache-2.0.

A read-only agent plugin that connects to a third-party finance system for invoice questions. It is described as a spike fixture for testing a custom-connector design, not as a product.

In plain words
What is it for?
Use it for the example tasks of listing invoices for a quarter, totaling them, or checking an invoice's status.
Why use it?
It provides a defined way to try invoice lookups through a hosted connector without writing changes to the finance system.

Plugin for Claude Code

Written for Claude Code: a Claude Code plugin manifest.

Good fit Use it for the example tasks of listing invoices for a quarter, totaling them, or checking an invoice's status.

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Install in Claude Code
/plugin marketplace add curie-eng/curie
/plugin install stubfin-bot
Install

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.

Clone the repo
git clone --depth 1 https://github.com/curie-eng/curie

Made for: Claude Code.

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 stubfin-bot

README.md
[![agentmods](https://agentmods.dev/badge/plugins/curie-eng/curie/bundle/github.svg)](https://agentmods.dev/plugins/curie-eng/curie/bundle)
Your own site
<a href="https://agentmods.dev/plugins/curie-eng/curie/bundle"><img src="https://agentmods.dev/badge/plugins/curie-eng/curie/bundle/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 stubfin-bot

Your own site · 80×15
<a href="https://agentmods.dev/plugins/curie-eng/curie/bundle"><img src="https://agentmods.dev/badge/plugins/curie-eng/curie/bundle.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session not measured What this adds to a session before it is invoked.
When invoked not measured The manifest loads nothing itself; its 1 skill cost 43 tokens a session between them.
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.
Security

Grade A, and why

stubfin-bot 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 26d 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.

docs/adr/evidence/0143-custom-connector-spike/bundle/.claude-plugin/plugin.json · 10 lines

What it actually says

{
  "name": "stubfin-bot",
  "version": "0.1.0",
  "description": "Answers questions about invoices in a third-party finance system through one read-only hosted connector. A spike fixture for the custom-connector ADR, not a product.",
  "starterPrompts": [
    "List the invoices for 2026-Q2 and total them.",
    "What is the status of invoice INV-2026-042?"
  ]
}
Contents

What it installs

The manifest is a name and a version. 1 skill travel with it, and installing the plugin installs all of them — 43 tokens a session between them. Each is measured on its own page, and each can be installed alone.

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. 26d ago First seen · 10 lines scan A 17e71d2fba05

Subscribe to this mod's changes

stubfin-bot is a plugin published in the GitHub repository curie-eng/curie (37 stars, last pushed today), licensed Apache-2.0. Its token cost is not measured: this kind of file is read by the harness, not the model. 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 2026-09-22.