fp-ts-pragmatic
Build Clearer TypeScript with fp-ts
TypeScript error and null handling often becomes repetitive or unclear. This skill applies practical fp-ts patterns with readable examples and restrained functional design.
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Review the Skillstore skill "fp-ts-pragmatic" from https://skillstore.io/skills/sickn33-fp-ts-pragmatic.md and its manifest at https://skillstore.io/api/skills/sickn33-fp-ts-pragmatic/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.
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Test it
Using "fp-ts-pragmatic". A function repeats null checks while reading a customer address. Recommend a practical approach.
Expected outcome:
- Use optional chaining when the function only reads one short property path.
- Use Option when several nullable operations must compose with later transformations.
- Choose the approach that keeps missing-value behavior visible without adding unnecessary structure.
Using "fp-ts-pragmatic". Review a parser that throws exceptions for expected invalid input.
Expected outcome:
- Return Either so callers can see success and failure in the type.
- Define a focused validation error instead of returning unrelated strings.
- Chain dependent validation steps with flatMap and transform successful values with map.
Using "fp-ts-pragmatic". Assess whether a data transformation pipeline uses too much functional abstraction.
Expected outcome:
- Keep pipe when the transformations follow a clear reading order.
- Replace indirect property helpers with direct callbacks when they improve recognition.
- Use an imperative loop for measured hot paths or complex early exits.
Security Audit
SafeAll 81 static findings are false positives caused by Markdown backticks, TypeScript template literals, illustrative same-origin fetch calls, metadata, and ordinary validation methods. The skill contains documentation only, with no executable scripts, command invocation, external data transfer, reconnaissance behavior, or prompt injection.
Risk Factors
⚙️ External commands (50)
🌐 Network access (3)
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APA citation
sickn33. (2026). fp-ts-pragmatic security audit report (audit version 5) [Author version unspecified]. Skillstore. https://skillstore.io/skills/sickn33-fp-ts-pragmatic/audits/5BibTeX citation
@techreport{sickn33-sickn33-fp-ts-pragmatic-2026,
author = {sickn33},
title = {fp-ts-pragmatic security audit report (audit version 5)},
institution = {Skillstore},
year = {2026},
number = {5},
url = {https://skillstore.io/skills/sickn33-fp-ts-pragmatic/audits/5},
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: "fp-ts-pragmatic security audit report (audit version 5)"
version: "unspecified"
type: report
authors:
- name: "sickn33"
date-released: "2026-07-23"
url: "https://skillstore.io/skills/sickn33-fp-ts-pragmatic/audits/5"
identifiers:
- type: other
value: "skillstore:sickn33-fp-ts-pragmatic:audit:5"
description: "Skillstore immutable audit report identifier"
Skillstore Score
Why this score Evidence Confidence: HighWhat You Can Build
Learn Practical fp-ts
Understand core fp-ts types through direct explanations and focused TypeScript examples.
Refactor Error Handling
Replace exceptions, null checks, and nested callbacks with explicit, typed workflows.
Review Functional Design
Compare implementation options and keep functional patterns readable for the whole team.
Try These Prompts
Explain how fp-ts Option handles nullable values, then show when native optional chaining is clearer.
Refactor this TypeScript function with Either, preserve its behavior, and explain each transformation in direct language: [function].
Model this asynchronous TypeScript workflow with TaskEither, typed failures, and readable pipe steps: [workflow requirements].
Review this fp-ts design for readability, error types, unnecessary abstraction, and team maintainability: [design or code].
Best Practices
- Introduce one fp-ts pattern at a time and preserve existing behavior.
- Use explicit domain error types for expected failures.
- Prefer the simplest approach that remains readable to the team.
Avoid
- Do not replace short optional chains with long Option pipelines.
- Do not hide simple transformations behind dense helper composition.
- Do not adopt fp-ts without tests for success and failure paths.