deep-code-security: Agent for Claude Code

.claude/agents/qa-engineer.md

qa-engineer is an agent for Claude Code from backspace-shmackspace/deep-code-security. It costs 24 tokens per session (1,401 once invoked), scanned B, original, no licence file.

A testing agent for deep-code-security, a tool that examines source code for security problems. It checks whether findings are accurate, isolated code can run safely, and processing pipelines work correctly.

In plain words
What is it for?
Use it to test security findings, sandbox behavior, and the project’s processing pipelines.
Why use it?
It focuses testing on the places where a security-analysis tool can give wrong results or create safety problems.

Agent for Claude Code

Written for Claude Code: installed under .claude/.

This is backspace-shmackspace/deep-code-security's own configuration. It tells Claude Code how to work on deep-code-security 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 deep-code-security configures →

Reuse

Borrowing it

Nothing to install: this file belongs to backspace-shmackspace/deep-code-security. 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/backspace-shmackspace/deep-code-security/main/.claude/agents/qa-engineer.md
Clone the repo
git clone --depth 1 https://github.com/backspace-shmackspace/deep-code-security

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-engineer

README.md
[![agentmods](https://agentmods.dev/badge/agents/backspace-shmackspace/deep-code-security/qa-engineer/github.svg)](https://agentmods.dev/agents/backspace-shmackspace/deep-code-security/qa-engineer)
Your own site
<a href="https://agentmods.dev/agents/backspace-shmackspace/deep-code-security/qa-engineer"><img src="https://agentmods.dev/badge/agents/backspace-shmackspace/deep-code-security/qa-engineer/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-engineer

Your own site · 80×15
<a href="https://agentmods.dev/agents/backspace-shmackspace/deep-code-security/qa-engineer"><img src="https://agentmods.dev/badge/agents/backspace-shmackspace/deep-code-security/qa-engineer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 24 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,401 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown 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 $0.00024 $0.01401
Opus 5.5 $0.00010 $0.00560
Sonnet 5.5 $0.00005 $0.00280
Haiku 4.5 $0.00002 $0.00140

Measured 1mo ago against content hash 65773d24422c, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade B, and why

qa-engineer scanned grade B with 1 finding 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.

Reaches for credential filesmediumPrivilege escalation

SSH keys, cloud credentials, git-credentials, .npmrc, /etc/shadow: reading these is how a config file becomes a credential leak.

- **Path traversal:** `../../../etc/passwd`, symlinks to `/etc/shadow`, `/proc/self/environ`

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

.claude/agents/qa-engineer.md · 135 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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 · 135 lines · 24 tokens per session scan B 65773d24422c

Subscribe to this mod's changes

qa-engineer is an agent published in the GitHub repository backspace-shmackspace/deep-code-security (0 stars, last pushed 7mo ago), with no licence file. It adds 24 tokens to every session and 1,401 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it B with 1 finding (reaches for credential files). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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