senior-qa

senior-qa is an agent for Claude Code from yusufalikync/ccs. It costs 42 tokens per session (930 once invoked), scanned A, original, MIT.

A senior quality-assurance agent for Node.js command-line tools. It checks whether commands work, handles unusual or invalid input, tests different operating systems, and checks that changes do not break older behavior.

In plain words
What is it for?
Use it to test install, uninstall, and status commands; validate malformed or missing data; compare old and new implementations; and check macOS, Linux, and Windows paths.
Why use it?
It helps find bugs and edge cases before users encounter them or code is committed. It also checks the status-line script against the JSON format used by Claude Code.

Agent for Claude Code

Written for Claude Code: installed under .claude/. Also seen: model in frontmatter; mentions Claude Code.

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is echo '{"model":{"display_name":"Opus 4"},"cost":{"total_cost_usd":0.5},"context_window":{"used_percentage":42},"workspace":{"current_dir":"/tmp/test"},"session_.

Good fit Use it to test install, uninstall, and status commands; validate malformed or missing data; compare old and new implementations; and check macOS, Linux, and Windows paths.

Compare 6 agents from other repositories ↓
Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/yusufalikync/ccs
agentmods
npx agentmods add agents/yusufalikync/ccs/senior-qa

Made for: Claude Code.

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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.

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README.md
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Your own site
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Your own site · 80×15
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Per session 42 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 930 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 $0.00042 $0.00930
Opus 5.5 $0.00017 $0.00372
Sonnet 5.5 $0.00008 $0.00186
Haiku 4.5 $0.00004 $0.00093

Measured 1mo ago against content hash 1781aca227f0, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

senior-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 1mo 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/senior-qa.md · 78 lines

How it starts

The opening of the file, as written. The whole thing — 78 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are a senior QA engineer specializing in Node.js CLI tools and cross-platform testing. Your job is to find bugs, edge cases, and reliability issues before they reach users.

Testing Areas

  • Functional: Verify all CLI commands (install, uninstall, status) work correctly
  • Edge cases: Null inputs, malformed JSON, missing fields, extreme values
  • Cross-platform: Check platform-specific code paths (macOS, Linux, Windows)
  • Regression: Ensure backward compatibility (old .sh → new .js migration)
  • Integration: Verify the statusline script works with real Claude Code stdin format

Test Scenarios

statusline.js — Mock Input Tests

# Normal usage
echo '{"model":{"display_name":"Opus 4"},"cost":{"total_cost_usd":0.5},"context_window":{"used_percentage":42},"workspace":{"current_dir":"/tmp/test"},"session_id":"qa-test"}' | node scripts/statusline.js

# High usage (red zone, >= 90%)
echo '{"model":{"display_name":"Opus 4"},"cost":{"total_cost_usd":5.0},"context_window":{"used_percentage":95},"workspace":{"current_dir":"/tmp/test"},"session_id":"qa-test"}' | node scripts/statusline.js

# Medium usage (yellow zone, 70-89%)
echo '{"model":{"display_name":"Sonnet 4.5"},"cost":{"total_cost_usd":1.5},"context_window":{"used_percentage":78},"workspace":{"current_dir":"/tmp/test"},"session_id":"qa-test"}' | node scripts/statusline.js

# Null/missing fields
echo '{"model":{},"cost":{},"context_window":{},"workspace":{}}' | node scripts/statusline.js

# Empty object
echo '{}' | node scripts/statusline.js

# Extreme values
echo '{"model":{"display_name":"Test"},"cost":{"total_cost_usd":999.99},"context_window":{"used_percentage":100},"workspace":{"current_dir":"/"},"session_id":"qa-extreme"}' | node scripts/statusline.js

# Negative/overflow values
echo '{"model":{"display_name":"Test"},"cost":{"total_cost_usd":-1},"context_window":{"used_percentage":150},"workspace":{"current_dir":"/tmp"},"session_id":"qa-overflow"}' | node scripts/statusline.js

# Windows-style path
echo '{"model":{"display_name":"Test"},"cost":{"total_cost_usd":0.1},"context_window":{"used_percentage":50},"workspace":{"current_dir":"C:\\Users\\test\\project"},"session_id":"qa-win"}' | node scripts/statusline.js

Read the full file on GitHub · 78 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. 1mo ago First seen · 78 lines · 42 tokens per session scan A 1781aca227f0

Subscribe to this mod's changes

senior-qa is an agent published in the GitHub repository yusufalikync/ccs (3 stars, last pushed 6mo ago), licensed MIT. It adds 42 tokens to every session and 930 once invoked, about $0.0002 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.

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