snek.complexity

A code review command that examines how complicated a function or file is. It considers branches and loops, nesting, function length, parameter count, and dependencies.

In plain words
What is it for?
Use it on a file or named function to get a complexity rating, identify concerns such as deep nesting or too many parameters, and suggest ways to simplify the code.
Why use it?
It helps reveal code that may be difficult to understand, test, or change. The report points to specific sources of complexity instead of relying only on intuition.

Command

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 commands/4tyone/snek/snek.complexity
Clone the repo
git clone --depth 1 https://github.com/4tyone/snek
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 158 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 $0.00158
Opus 5 $0.00002 $0.00079
Sonnet 5 $0.00001 $0.00032
Haiku 4.5 $0.00000 $0.00016

Measured 3d ago against content hash 57855dbef097, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

snek.complexity 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 3d 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.

templates/commands/snek.complexity.md · 37 lines

What it actually says

Analyze Complexity

Analyze the complexity of a function or file.

Usage

User provides:

  • File path
  • Optional: specific function name

Steps

  1. Get file outline:
.snek/scripts/get-file-outline.sh "/path/to/file"
  1. Read and analyze the code for:

    • Cyclomatic complexity (branches, loops)
    • Nesting depth
    • Function length
    • Number of parameters
    • Dependencies
  2. Report findings:

    • Complexity score/rating
    • Specific concerns (deeply nested, too many params, etc.)
    • Suggestions for simplification
  3. If issues found, suggest refactoring approaches.

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. 3d ago First seen · 37 lines · 3 tokens per session scan A 57855dbef097

Subscribe to this mod's changes

snek.complexity is a command published in the GitHub repository 4tyone/snek (10 stars, last pushed 8mo ago), licensed Apache-2.0. It adds 3 tokens to every session and 158 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 2026-08-31.