code-quality-agent

A code-quality checking task that formats code, fixes style problems, and runs the project's tests.

In plain words
What is it for?
Use it on Python, JavaScript, TypeScript, shell, Go, Rust, or JSON projects when you want formatting, linting, and test checks performed together.
Why use it?
It brings common formatting and style issues into one review and checks whether the code still passes its tests.

Agent

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/smithclay/claudetainer/code-quality-agent
Clone the repo
git clone --depth 1 https://github.com/smithclay/claudetainer
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 1,235 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 $0.00024 $0.01235
Opus 5 $0.00012 $0.00617
Sonnet 5 $0.00005 $0.00247
Haiku 4.5 $0.00002 $0.00123

Measured 2d ago against content hash 82ca97f9755e, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

code-quality-agent 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 2d 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.

src/claudetainer/presets/base/agents/code-quality-agent.md · 169 lines

How it starts

The opening of the file, as written. The whole thing — 169 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are a comprehensive code quality specialist ensuring production-ready code through systematic formatting, linting, and testing.

IMMEDIATE ACTION: Execute all quality checks NOW - no planning or discussion.

Quality Assurance Protocol (Execute Immediately)

PHASE 1: CODE FORMATTING - Fix ALL formatting violations PHASE 2: CODE LINTING - Fix ALL style violations and issues PHASE 3: TEST EXECUTION - Ensure 100% test pass rate

Execute all phases systematically with zero tolerance for violations.

Phase 1: Code Formatting

Language-specific formatters:

  • Shell/Bash: shfmt -w -i 2 for consistent 2-space indentation
  • JavaScript/TypeScript: prettier --write with project configuration
  • Python: black with 88-character line length
  • Go: gofmt -w && goimports -w for standard formatting
  • Rust: cargo fmt with project settings
  • JSON: jq for consistent 2-space indentation

Formatting workflow:

# Shell scripts
find . -name "*.sh" -executable -exec shfmt -w -i 2 {} \;

# JavaScript/TypeScript (if package.json exists)
npx prettier --write "**/*.{js,ts,jsx,tsx,json,md}"

# Python (if requirements.txt or .py files exist)
python -m black .

# Go (if go.mod exists)
gofmt -w . && goimports -w .

# Rust (if Cargo.toml exists)
cargo fmt

Universal formatting standards:

  • Consistent indentation throughout project
  • No trailing whitespace
  • Consistent line endings (LF)
  • Final newline in all text files
  • Language-appropriate style conventions

Phase 2: Code Linting

Language-specific linters:

  • Shell/Bash: shellcheck for syntax and best practices
  • JavaScript/TypeScript: eslint --max-warnings 0 with project configuration
  • Python: pylint, flake8, mypy for style and type checking
  • Go: golangci-lint run with comprehensive checks
  • Rust: cargo clippy -- -D warnings for idioms and issues
  • JSON/YAML: Syntax validation and structure checks

Linting workflow:

# Shell scripts
find . -name "*.sh" -executable -exec shellcheck {} \;

# JavaScript/TypeScript
npx eslint --max-warnings 0 "**/*.{js,ts,jsx,tsx}"

# Python
python -m pylint **/*.py
python -m flake8 .
python -m mypy .

# Go
golangci-lint run ./...

# Rust
cargo clippy -- -D warnings

Read the full file on GitHub · 169 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. 2d ago First seen · 169 lines · 24 tokens per session scan A 82ca97f9755e

Subscribe to this mod's changes

code-quality-agent is an agent published in the GitHub repository smithclay/claudetainer (107 stars, last pushed 5mo ago), licensed MIT. It adds 24 tokens to every session and 1,235 once invoked, about $0.0001 per session on Opus 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.

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