invoice-builder: Agent for Claude Code

.github/agents/qa.agent.md

qa is an agent for Claude Code from piratuks/invoice-builder. It costs 21 tokens per session (408 once invoked), scanned A, original, MIT.

A quality-assurance reviewer for Invoice Builder changes.

In plain words
What is it for?
Use it to review implementations for regressions, verify tests and supporting files, inspect task artifacts, and report remaining risks or human-review needs.
Why use it?
It checks whether a change meets its requirements, works across the application's layers, and has the expected tests, documentation, release notes, and workflow status.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md).

This is piratuks/invoice-builder's own configuration. It tells Claude Code how to work on invoice-builder 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 invoice-builder configures →

About the project

Invoice Builder is an offline desktop application for creating, managing, and exporting invoices and quotations, with business data stored in a local database file. It is designed for freelancers, contractors, and small businesses that need local control of their invoicing data and PDF documents. The catalogue commands, agents, and instructions provide coding-agent workflows for working with the application.

piratuks/invoice-builder · 1,344 stars · on GitHub

Reuse

Borrowing it

Nothing to install: this file belongs to piratuks/invoice-builder. 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/piratuks/invoice-builder/main/.github/agents/qa.agent.md
Clone the repo
git clone --depth 1 https://github.com/piratuks/invoice-builder

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 qa

README.md
[![agentmods](https://agentmods.dev/badge/agents/piratuks/invoice-builder/qa/github.svg)](https://agentmods.dev/agents/piratuks/invoice-builder/qa)
Your own site
<a href="https://agentmods.dev/agents/piratuks/invoice-builder/qa"><img src="https://agentmods.dev/badge/agents/piratuks/invoice-builder/qa/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 qa

Your own site · 80×15
<a href="https://agentmods.dev/agents/piratuks/invoice-builder/qa"><img src="https://agentmods.dev/badge/agents/piratuks/invoice-builder/qa.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 21 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 408 The whole file, excluding the scripts and references it only reads on demand.
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 $0.00021 $0.00408
Opus 5.5 $0.00008 $0.00163
Sonnet 5.5 $0.00004 $0.00082
Haiku 4.5 $0.00002 $0.00041

Measured 27d ago against content hash 0c4a10bf89b5, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

qa 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 27d 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.

.github/agents/qa.agent.md · 32 lines

What it actually says

QA agent

Act as QA for this repository.

  • Check whether the implementation satisfies the stated acceptance criteria.
  • Look for regressions across renderer, preload, Electron main, webserver, and persistence layers.
  • Confirm that relevant validation, tests, or build checks were actually run.
  • Confirm workflow state progression is valid for the change (typically in-dev -> qa-review -> done).
  • Confirm docs/history.md was updated when the change should be reflected in release notes.
  • Confirm documentation was updated when needed (README.md and the relevant page(s) under docs/guides/ for setup, usage, behavior, or screenshot changes).
  • When image-related documentation changes are needed, verify a {IMAGE} placeholder is present where the image should be inserted.
  • If story/task artifacts exist, confirm their verification sections are updated and consistent with QA findings.
  • Provide a concise verdict with evidence and any remaining concerns or follow-up work.
  • Be explicit about risk, edge cases, and anything that still needs human review.

Help

  • Command: help
  • Lists the available QA commands and what each does.
  • Command: review <task_description>
  • Treats the request as a QA review task. It should follow the workflow in .github/prompts/bmad-qa.prompt.md, use the supplied task description and PO acceptance criteria as the review input, and return a verdict with evidence and remaining risks.
  • Example: review "Review the recent invoice field change for regressions."

How it is wired

  • This agent file is the entry point for the QA role.
  • The reusable workflow lives in .github/prompts/bmad-qa.prompt.md.
  • When the user runs review <task_description>, the agent should apply that prompt template to the supplied task and assess whether the implementation satisfies the stated scope and acceptance criteria.
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. 27d ago Changed 0c4a10bf89b5
  2. 2mo ago First seen · 32 lines · 21 tokens per session scan A aa81883664e5

Subscribe to this mod's changes

qa is an agent published in the GitHub repository piratuks/invoice-builder (1,344 stars, last pushed 3d ago), licensed MIT. It adds 21 tokens to every session and 408 once invoked, about $0.0001 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 2026-08-30.

Related

Other agents, from other repositories

project-implementer

Implementation specialist - executes tasks from plans with TDD methodology, writes tests, and validates acceptance criteria. Use for executing phased implementation plans generated by attune:plan.

athola/claude-night-market · 38 tokens

python-pro

Write idiomatic Python code with advanced features like decorators, generators, and async/await. Optimizes performance, implements design patterns, and ensures comprehensive testing. Use PROACTIVELY for Python refactoring, optimization, or complex Python features.

echoVic/blade-code · 51 tokens

test-engineer

QA engineer operating on the "Prove-It" principle — if it works, prove it with a test. Use when writing tests for a new feature, filling coverage gaps, or validating that a bug fix won't regress. Can read, write and edit test files. Dispatch with Task tool for isolated test work.

felvieira/claude-skills-fv · 66 tokens

temporal-test-builder

Generates or improves 3-layer test suites (unit, activity, workflow) for existing Temporal Python SDK workflows. Triggers on requests like 'generate tests for my workflow', 'add test coverage for this activity', or 'improve my test suite'.

canonical/copilot-collections · 56 tokens

e2e-tester

Use for end-to-end and smoke testing of critical user paths across viewports. Pairs with a browser-automation MCP (for example Playwright) when one is available.

mnzralee/claude-multi-agent-architecture · 41 tokens

test-writer

Use this agent when the guild needs unit or integration tests written for implemented code. The test-writer implements the test-planner's test plan — reading the plan's Changed Files Inventory instead of re-analyzing the codebase — then writes and runs the tests. Spawned by the check-in skill when a test-writing task…

HirogaKatageri/hirokata · 77 tokens