scala-pro
Build Advanced Scala Systems
Enterprise Scala projects need consistent guidance for functional design, concurrency, and distributed architecture. This skill helps Claude, Codex, and Claude Code produce practical Scala plans, reviews, and optimization advice.
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Review the Skillstore skill "scala-pro" from https://skillstore.io/skills/sickn33-scala-pro.md and its manifest at https://skillstore.io/api/skills/sickn33-scala-pro/manifest. Verify the artifact. You may proceed after verification, subject to the environment's own policy.Your Agent should still show its plan and request any confirmation required by the security policy.
Agent-readable resources
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Test it
Using "scala-pro". Review a service that mixes Future, blocking database calls, and ad hoc error strings.
Expected outcome:
- Highlights blocking risks and unclear execution context usage.
- Recommends explicit error types and a consistent effect model.
- Suggests tests for failure paths, timeouts, and retry behavior.
Using "scala-pro". Plan an event-sourced ordering service with Scala and Apache Pekko.
Expected outcome:
- Defines aggregate boundaries, commands, events, projections, and consistency rules.
- Explains shard placement, persistence choices, backpressure, and recovery behavior.
- Lists verification steps for replay, idempotency, and operational monitoring.
Using "scala-pro". Find likely causes of high memory use in a Spark job.
Expected outcome:
- Separates data skew, caching, shuffle pressure, serialization, and executor sizing concerns.
- Recommends measurements before tuning JVM and Spark settings.
- Proposes focused experiments with clear success criteria.
Security Audit
SafeThe static findings are false positives caused by Markdown inline code spans in SKILL.md. No prompt injection, exfiltration intent, or unsafe execution behavior was found in the reviewed skill text.
Risk Factors
⚙️ External commands (4)
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APA citation
sickn33. (2026). scala-pro security audit report (audit version 4) [Author version unspecified]. Skillstore. https://skillstore.io/skills/sickn33-scala-pro/audits/4BibTeX citation
@techreport{sickn33-sickn33-scala-pro-2026,
author = {sickn33},
title = {scala-pro security audit report (audit version 4)},
institution = {Skillstore},
year = {2026},
number = {4},
url = {https://skillstore.io/skills/sickn33-scala-pro/audits/4},
note = {Author version unspecified}
}CITATION.cff
cff-version: 1.2.0
message: "If you use this Skill, cite its author and this versioned security audit report."
title: "scala-pro security audit report (audit version 4)"
version: "unspecified"
type: report
authors:
- name: "sickn33"
date-released: "2026-07-07"
url: "https://skillstore.io/skills/sickn33-scala-pro/audits/4"
identifiers:
- type: other
value: "skillstore:sickn33-scala-pro:audit:4"
description: "Skillstore immutable audit report identifier"
Skillstore Score
Why this score Evidence Confidence: HighWhat You Can Build
Design a service architecture
Plan bounded contexts, API contracts, failure handling, and event-driven workflows for a Scala microservice system.
Review functional Scala code
Check effect usage, error modeling, immutability, pattern matching, and type safety in production Scala code.
Improve platform performance
Analyze JVM behavior, Spark workloads, stream backpressure, and benchmarking plans for Scala applications.
Try These Prompts
Explain the best Scala approach for [feature]. Compare functional and object-oriented options, then recommend a simple implementation path.
Review this Scala module for type safety, error handling, effects, testability, and performance. Prioritize concrete changes.
Design a Scala architecture for [workflow]. Include service boundaries, messaging, consistency model, retries, observability, and failure modes.
Analyze these Scala performance symptoms and system constraints. Propose measurement steps, likely bottlenecks, code changes, and rollout safeguards.
Best Practices
- Provide code snippets, dependency versions, runtime constraints, and expected behavior when requesting analysis.
- Ask for tradeoffs when choosing between Cats Effect, ZIO, Future, Akka, Pekko, FS2, or Spark patterns.
- Use the recommendations with compiler checks, tests, profiling data, and staged production rollout plans.
Avoid
- Do not ask for broad Scala advice without a project goal, code sample, or system constraint.
- Do not replace profiling, load testing, or production telemetry with general performance suggestions.
- Do not mix multiple effect systems or concurrency models without documenting boundaries and migration steps.