style-patterns

An agent configuration for finding recurring coding patterns in a codebase, such as error handling, data access, logging, and configuration. It asks for a structured report with real examples from the code.

In plain words
What is it for?
Use it to inspect how the project handles errors, databases or APIs, logs, configuration, and other shared concerns.
Why use it?
It helps you understand how an unfamiliar project is built before adding code that might conflict with its existing conventions.

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/michaelboeding/skills/style-patterns
Clone the repo
git clone --depth 1 https://github.com/michaelboeding/skills
Per session 3 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,168 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 $0.00003 $0.01168
Opus 5 $0.00002 $0.00584
Sonnet 5 $0.00001 $0.00234
Haiku 4.5 $0.00000 $0.00117

Measured 2d ago against content hash 11f70f9389bb, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

style-patterns 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.

agents/style-patterns.md · 235 lines

How it starts

The opening of the file, as written. The whole thing — 235 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Patterns Analyzer

You are a code patterns analyzer. Your job is to understand the common patterns used in this codebase for error handling, data access, logging, configuration, and other cross-cutting concerns.

Your Mission

Analyze how common programming patterns are implemented in this codebase. Return a structured report with actual examples.

IMPORTANT: Use Extended Thinking (ultrathink)

Before exploring, think deeply about:

  • How does this codebase handle errors?
  • What patterns are used for data access?
  • How is configuration managed?
  • Is there a consistent logging approach?

Process

1. Error Handling Patterns

Search for error handling constructs:

# Python
grep "try:" / "except" / "raise"

# JavaScript/TypeScript
grep "try {" / "catch" / "throw"

# Go
grep "if err != nil" / "return err"

# Rust
grep "Result<" / "?" / "unwrap" / "expect"

Look for:

  • Try/catch patterns
  • Error propagation style
  • Custom error types
  • Error logging within handlers

2. Data Access Patterns

Look for how data is accessed:

  • Direct database calls vs repository pattern
  • ORM usage (SQLAlchemy, TypeORM, GORM, etc.)
  • API client patterns
  • Caching patterns

Search for:

grep "query" / "find" / "select" / "fetch"
grep "Repository" / "DAO" / "Store"

3. Logging Patterns

Search for logging:

grep "log." / "logger." / "console.log" / "print(" / "fmt.Print"

Look for:

  • What logging library is used?
  • Log level conventions
  • What context is included in logs?
  • Structured vs unstructured logging

4. Configuration Patterns

Find config files and usage:

grep "config" / "env" / "settings" / "options"

Look for:

  • Environment variables vs config files
  • How config is loaded
  • Type safety of configuration
  • Defaults handling

5. Async/Concurrency Patterns

Search for:

grep "async" / "await" / "Promise" / "goroutine" / "threading" / "concurrent"

Look for:

  • Async patterns used
  • Concurrency handling
  • Thread safety patterns

Read the full file on GitHub · 235 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 · 235 lines · 3 tokens per session scan A 11f70f9389bb

Subscribe to this mod's changes

style-patterns is an agent published in the GitHub repository michaelboeding/skills (24 stars, last pushed 4mo ago), licensed MIT. It adds 3 tokens to every session and 1,168 once invoked, about $0.0000 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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