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Repository proof

What ArcSight found in Effect

Real arc impact on Effect (packages/effect) — blast radius, break paths, and evidence. Same question as the homepage: what breaks if I change this?

Project: Effect (packages/effect) · Score: 44.3/100 (High architecture risk) · 363 modules · 3,365 edges

arc impact src/Function
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Architectural Risk Map

Where risk accumulates by control surface — drill down Surface → Substrate → Mechanism → Evidence.

See control surfaces →

Dependency evidence

Architecture visualization

Diagrams are generated from ArcSight analysis data. Dependency graph and risk map show key modules; subsystem view shows high-level structure.

Dependency graph
Dependency graph for this codebase
Subsystem architecture
Subsystem architecture for this codebase
Risk map
Risk map for this codebase

Architecture score & metrics

Score: 44.3/100 · Stability: 1/100 · Status: critical · Confidence: 100%

  • Dependency cycles: 100+
  • Duplicate authorities: 311

Architectural gravity centers

  • src/Types— concentrates too many responsibilities
  • src/Types— shared utility hub
  • src/Function— concentrates too many responsibilities
  • src/Function— shared utility hub
  • src/Predicate— concentrates too many responsibilities

Try it in the terminal

Simulated arc analyze output from the dataset. No analysis runs in the browser.

ArcSight CLI (simulated)
$ arc scan effect
Architecture Score: 44.3
Modules: 363
Cycles: 100
Hotspots: 15

Simulated from dataset. No analysis is run in the browser.

Similar architectures

Repositories with the same language and category, ordered by similar complexity and size.

CLI workflow

Impact, then scan, fix, finish, and watch.

  • arc impact <file>See what a change breaks
  • arc scanFind issues
  • arc fixApply fixes
  • arc finishResolve remaining
  • arc watchKeep clean

More commands (explain, guard…) →

Effect (packages/effect) architecture metrics
Score
44.3
Modules
363
Edges
3,365

Metrics

MetricValue
Architecture score44.3/100
Modules363
Edges3,365
Dependency cycles100+

FAQ

What did ArcSight find in Effect (packages/effect)?
Effect (packages/effect) has 363 modules and an architecture score of 44.3/100.
Why does the Effect (packages/effect) structure matter?
The Effect (packages/effect) score is 44.3/100 across 363 modules and 3,365 edges.
Which file should I inspect first in Effect (packages/effect)?
Start with src/Function. Run arc impact on that file before the change merges.

Key takeaways

  • •Structural scan reports dependency cycles — inspect impact paths before refactors that cross module boundaries.
  • •High fan-in modules are change-risk zones; run arc explain <path> before refactoring.
  • •Run the full workflow (analyze, hotspots, explain, impact, snapshot, drift) in your repo for deterministic architecture insights.

Run ArcSight on your repo

Install locally, then run arc impact on the file you plan to change — before merge.

npm install -g arcsight
arc impact <path>
Install ArcSight →

Embed this report

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