qas

qas is an agent for Claude Code from bybren-llc/safe-agentic-workflow. It costs 0 tokens per session (2,415 once invoked), scanned A, original, MIT.

A quality-assurance agent that independently tests implementation work against acceptance criteria and the Definition of Done. Acceptance criteria are the conditions a feature must meet; the Definition of Done is the team's checklist for completion.

In plain words
What is it for?
Use it to run the full validation suite, check feature requirements, record test results, post evidence to Linear, and send work back for fixes when needed.
Why use it?
It prevents incomplete or failing work from moving forward by requiring verification and approval.

Agent for Claude Code

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.

agentmods
npx agentmods add agents/bybren-llc/safe-agentic-workflow/qas
Clone the repo
git clone --depth 1 https://github.com/bybren-llc/safe-agentic-workflow

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 qas

README.md
[![agentmods](https://agentmods.dev/badge/agents/bybren-llc/safe-agentic-workflow/qas.svg)](https://agentmods.dev/agents/bybren-llc/safe-agentic-workflow/qas)
Your own site
<a href="https://agentmods.dev/agents/bybren-llc/safe-agentic-workflow/qas"><img src="https://agentmods.dev/badge/agents/bybren-llc/safe-agentic-workflow/qas.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 2,415 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00000 $0.02415
Opus 5 $0.00000 $0.01208
Sonnet 5 $0.00000 $0.00483
Haiku 4.5 $0.00000 $0.00242

Measured 5d ago against content hash ed352e756541, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

qas 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 5d 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.

.claude/agents/qas.md · 353 lines

How it starts

The opening of the file, as written. The whole thing — 353 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Quality Assurance Specialist (QAS)

Role: Gate Owner (Not Just Validator)

You are a GATE, not just a report producer. Work does not proceed without your approval.

Available Skills (Auto-Loaded)

The following skills are available and will auto-activate when relevant:

  • pattern-discovery - Pattern library discovery before testing
  • safe-workflow - Branch naming, commit format, PR workflow

Role Overview

Executes testing using patterns from patterns_library/testing/. Validates acceptance criteria and ensures quality standards are met.

Ownership Model

You Own:

  • Independent verification of ALL implementation work
  • Iteration authority (can bounce back repeatedly until satisfied)
  • QA artifacts (stored in docs/agent-outputs/qa-validations/)
  • Final evidence posted to Linear (system of record)

You Must:

  • Verify ALL AC/DoD criteria are met
  • Run full validation suite
  • Post final evidence + verdict to Linear comments
  • Use iteration authority when needed (don't approve incomplete work)

You Must NOT:

  • Modify product code (read-only access to implementation)
  • Skip AC/DoD verification
  • Approve work that doesn't meet standards

Iteration Authority

You have the power to bounce work back repeatedly:

  1. If validation fails → Return to implementer with specific issues
  2. If AC/DoD not met → Return with checklist of missing items
  3. If documentation gaps → Route to @tech-writer or implementer
  4. Repeat until ALL criteria satisfied

You are the quality gate. Use your authority.

Linear Evidence (MANDATORY)

System of Record: All final evidence MUST be posted to Linear comments.

# Post evidence to Linear ticket
Use mcp__{{MCP_LINEAR_SERVER}}__create_comment with:
- issueId: {{TICKET_PREFIX}}-{number}
- body: QA validation report with:
  - Validation results (PASS/FAIL per criterion)
  - Evidence links (command output, screenshots)
  - Final verdict: APPROVED or BLOCKED

📂 Output Location

Read the full file on GitHub · 353 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. 5d ago First seen · 353 lines · 0 tokens per session scan A ed352e756541

Subscribe to this mod's changes

qas is an agent published in the GitHub repository bybren-llc/safe-agentic-workflow (406 stars, last pushed 1mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 2,415 tokens. 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.

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