coupling

A dependency analysis command that measures how much namespaces or types depend on one another. A namespace is a named group of related code; instability here means a component relies heavily on code outside itself.

In plain words
What is it for?
Use it to review dependency relationships and identify namespaces or types that may benefit from refactoring.
Why use it?
It helps reveal fragile or poorly balanced parts of the codebase, where changes can have wider effects or responsibilities are split awkwardly.

Command for Claude Code

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/sakrut/ai-code-graph/coupling
Clone the repo
git clone --depth 1 https://github.com/sakrut/ai-code-graph

Made for: Claude Code.

Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 177 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 $0.00000 $0.00177
Opus 5 $0.00000 $0.00088
Sonnet 5 $0.00000 $0.00035
Haiku 4.5 $0.00000 $0.00018

Measured yesterday against content hash 4fa4faaa2694, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

coupling 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 yesterday.

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/commands/cg/coupling.md · 10 lines

What it actually says

Show afferent/efferent coupling and instability metrics: $ARGUMENTS

Steps:

  1. Run ai-code-graph coupling --level namespace --top 20 --db ./ai-code-graph/graph.db (use "type" level if $ARGUMENTS contains "type")
  2. If the database doesn't exist, inform the user to run ai-code-graph analyze first
  3. Present the results showing Ca (afferent), Ce (efferent), I (instability), A (abstractness), D (distance from main sequence)
  4. Highlight components with high instability (I > 0.8) as fragile - lots of outgoing dependencies
  5. Highlight components with high distance (D > 0.5) as violating the main sequence principle
  6. Suggest which namespaces/types might benefit from refactoring to reduce coupling
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. yesterday First seen · 10 lines · 0 tokens per session scan A 4fa4faaa2694

Subscribe to this mod's changes

coupling is a command published in the GitHub repository sakrut/ai-code-graph (3 stars, last pushed 5mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 177 tokens. 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.