Agent skill

Fp TS Pragmatic

by aiskillstore in aiskillstore/marketplace

A practical, jargon-free guide to fp-ts functional programming - the 80/20 approach that gets results without the academic overhead.

No licenceAuto-check passedWriting & Content

Install Fp TS Pragmatic

skills CLI
$ npx skills add aiskillstore/marketplace --skill fp-ts-pragmatic -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install aiskillstore/marketplace fp-ts-pragmatic --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/sickn33/fp-ts-pragmatic .claude/skills/fp-ts-pragmatic && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
fp-ts-pragmatic
GitHub stars
433
Used in
5 other repos
Token cost
~4k tokens
SKILL.md length
685 words
Files
2
Skills in repo
1,044
Repo updated
First seen
Licence
None found

At a glance

A practical, jargon-free guide to fp-ts functional programming - the 80/20 approach that gets results without the academic overhead.

  • Works in 10 steps: Pipe: Chain Operations Clearly → Option: Handle Missing Values Without… → Either: Make Errors Explicit → …
  • Writing TypeScript with fp-ts library
  • SKILL.md covers When to Use This Skill, The Golden Rule, The 80/20 of FP and When NOT to Use FP, plus 4 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Fp TS Pragmatic is an agent skill from aiskillstore/marketplace. A practical, jargon-free guide to fp-ts functional programming - the 80/20 approach that gets results without the academic overhead. Use when writing TypeScript with fp-ts library.

Its SKILL.md is about 4k tokens, which your agent loads only when the skill is triggered. The skill folder holds 1 other file (for example `skill-report.json`).

It sits in Writing & Content. It works with TypeScript. The repository describes itself as: Security-audited skills for Claude, Codex & Claude Code. One-click install, quality verified.

When your agent uses it

  • Writing TypeScript with fp-ts library

Example prompts

  • “/fp-ts-pragmatic”

Workflow steps

10 steps, taken from the step headings in SKILL.md.

  1. Pipe: Chain Operations Clearly
  2. Option: Handle Missing Values Without null Checks
  3. Either: Make Errors Explicit
  4. Map: Transform Without Unpacking
  5. FlatMap: Chain Operations That Might Fail
  6. Replace Nested Ternaries with pipe + fold
  7. Replace try-catch with tryCatch
  8. Replace undefined Returns with Option
  9. Replace Error Strings with Typed Errors
  10. Use const Assertions for Error Types

What it can do on your machine

Read from SKILL.md and the folder at commit 44923f3. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md (its code samples are typescript).

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Fp TS Pragmatic loads about 4k tokens when it runs. Until then it costs about 49 tokens; SKILL.md has 685 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~49
When it runs · the whole SKILL.md, loaded when a task matches
~4k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

Without a licence we can't republish the file, so here is its outline and opening line. It has 685 words (~4,049 tokens).

“Read this first. This guide cuts through the academic jargon and shows you what actually matters. No category theory. No abstract nonsense. Just patterns that make your code better.”

— opening of SKILL.md by aiskillstore
name
fp-ts-pragmatic
risk
safe
source
https://github.com/whatiskadudoing/fp-ts-skills
date_added
2026-02-27

Read the full SKILL.md on GitHub

Files

SKILL.md and 1 other file in skills/sickn33/fp-ts-pragmatic of aiskillstore/marketplace.

  • SKILL.md
  • skill-report.json

Open the folder on GitHubat commit 44923f3

Used in 5 other repositories

We found 26 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 5 other GitHub owners. This page covers the copy in aiskillstore/marketplace, which our catalogue first saw on October 7, 2026.

Compare with similar skills

Fp TS Pragmatic next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Fp TS Pragmatic compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Fp TS Pragmatic this skillaiskillstore/marketplace4335 repos~4kAutomated safety check: PassNone
Install Anti Sloptrycompai/crm11k1 repos~881Automated safety check: PassMIT
Update TranslationsRaicuparta/rai-pal735—~839Automated safety check: PassGPL-3.0
Blog Post ProcessorJustin3go/justin3go.com172—~1.5kAutomated safety check: PassCustom licence
Biome Anti Slopnightly-labs/openbot489—~1.5kAutomated safety check: PassCustom licence
Import X Historypc-style/x-md159—~1.6kAutomated safety check: PassMIT

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Works with

Questions about Fp TS Pragmatic

What does Fp TS Pragmatic do?

A practical, jargon-free guide to fp-ts functional programming - the 80/20 approach that gets results without the academic overhead. Fp TS Pragmatic is an agent skill from aiskillstore/marketplace. A practical, jargon-free guide to fp-ts functional programming - the 80/20 approach that gets results without the academic overhead.

When should I use Fp TS Pragmatic?

Fp TS Pragmatic fits situations like: writing TypeScript with fp-ts library.

How do I install Fp TS Pragmatic in Claude Code?

Run `npx skills add aiskillstore/marketplace --skill fp-ts-pragmatic -a claude-code`. Or copy the skill folder (skills/sickn33/fp-ts-pragmatic in aiskillstore/marketplace) into .claude/skills/fp-ts-pragmatic in your project. Claude Code loads it when a task matches its description.

How do I install Fp TS Pragmatic in Codex?

Run `npx skills add aiskillstore/marketplace --skill fp-ts-pragmatic -a codex`. Or copy the skill folder (skills/sickn33/fp-ts-pragmatic in aiskillstore/marketplace) into .agents/skills/fp-ts-pragmatic in your project. Codex loads it when a task matches its description.

Can I use Fp TS Pragmatic in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add aiskillstore/marketplace --skill fp-ts-pragmatic -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/fp-ts-pragmatic, .gemini/skills/fp-ts-pragmatic, .github/skills/fp-ts-pragmatic and .opencode/skills/fp-ts-pragmatic in your project.

What does Fp TS Pragmatic need to run?

SKILL.md names no scripts, command-line tools or credentials: Fp TS Pragmatic is instructions for the agent only.

Does Fp TS Pragmatic access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Fp TS Pragmatic safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Fp TS Pragmatic use?

No licence was found for Fp TS Pragmatic or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.

How many tokens does Fp TS Pragmatic use?

About 4k tokens (SKILL.md is roughly 16k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Fp TS Pragmatic?

Skills that share tags, products or a category with Fp TS Pragmatic: Install Anti Slop (trycompai/crm, 11k stars), Update Translations (Raicuparta/rai-pal, 735 stars), Blog Post Processor (Justin3go/justin3go.com, 172 stars) and Biome Anti Slop (nightly-labs/openbot, 489 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Fp TS Pragmatic?

aiskillstore (a GitHub organization) maintains it in aiskillstore/marketplace, which has 433 GitHub stars. The repository holds 1,044 skills in this directory. The repository was last updated on October 10, 2026.

Source: aiskillstore/marketplace on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.