What ArcSight found
src/auth/verifiers/common: fan-in 9, blast radius 10, LOW. 31 modules and 42 dependency edges traced.
← HomepageAll repository proofValidation recordState of TS Architecture 2026
Repository proof
Real arc impact on RedwoodJS (packages/api) — blast radius, break paths, and evidence. Same question as the homepage: what breaks if I change this?
Project: RedwoodJS (packages/api) · Score: 95.3/100 (Excellent architecture) · 31 modules · 42 edges
arc impact src/auth/verifiers/commonRun the same analysis on your repository in under 3 minutes.
Four questions every public repository page must answer — see validation record.
One row per module. Fan-in is direct dependents. Blast radius is downstream modules reachable from that file.
| Module | Fan-in | Blast | Risk |
|---|---|---|---|
| src/auth/verifiers/common | 9 | 10 | LOW |
| src/auth/verifiers/base64Sha1Verifier | 1 | 10 | LOW |
| src/auth/verifiers/base64Sha256Verifier | 1 | 10 | LOW |
| src/auth/verifiers/jwtVerifier | 1 | 10 | LOW |
| src/auth/verifiers/secretKeyVerifier | 1 | 10 | LOW |
| src/auth/verifiers/sha1Verifier | 1 | 10 | HIGH |
| src/auth/verifiers/sha256Verifier | 1 | 10 | HIGH |
| src/auth/verifiers/skipVerifier | 1 | 10 | HIGH |
| src/auth/verifiers/timestampSchemeVerifier | 1 | 10 | HIGH |
| src/cache/clients/BaseClient | 4 | 4 | CRITICAL |
src/auth/verifiers/common: fan-in 9, blast radius 10, LOW. 31 modules and 42 dependency edges traced.
In RedwoodJS (packages/api), Change-risk signal at src/auth/verifiers/common (fan-in 9) — merge impact can travel beyond the diff you see. Blast radius on src/auth/verifiers/common reaches 10 downstream modules. ArcSight answers “what breaks if I change this?” before you ship; high fan-in is a change-risk signal, not a verdict on design quality.
Where risk accumulates by control surface — drill down Surface → Substrate → Mechanism → Evidence.
See control surfaces →Diagrams are generated from ArcSight analysis data. Dependency graph and risk map show key modules; subsystem view shows high-level structure.
Score: 95.3/100 · Stability: 51/100 · Status: healthy · Confidence: 100%
Impact, then scan, fix, finish, and watch.
arc impact <file>See what a change breaksarc scanFind issuesarc fixApply fixesarc finishResolve remainingarc watchKeep clean| Metric | Value |
|---|---|
| Architecture score | 95.3/100 |
| Modules | 31 |
| Edges | 42 |
| Dependency cycles | 8 |
arc explain <path> before refactoring.Install locally, then run arc impact on the file you plan to change — before merge.
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<iframe src="https://arcsight.ai/embed/redwoodjs/" width="320" height="180" frameborder="0"></iframe>Evidence-backed analysis snapshot. Validation record · Install · Homepage demo