Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add eugeniosegala/claude-connoisseur --skill functionalgit clone --depth 1 https://github.com/eugeniosegala/claude-connoisseurWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/eugeniosegala/claude-connoisseur/functional)<a href="https://agentmods.dev/skills/eugeniosegala/claude-connoisseur/functional"><img src="https://agentmods.dev/badge/skills/eugeniosegala/claude-connoisseur/functional/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/eugeniosegala/claude-connoisseur/functional"><img src="https://agentmods.dev/badge/skills/eugeniosegala/claude-connoisseur/functional.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00013 | $0.00513 |
| Opus 5 | $0.00006 | $0.00257 |
| Sonnet 5 | $0.00003 | $0.00103 |
| Haiku 4.5 | $0.00001 | $0.00051 |
Grade A, and why
functional scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 11d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 50 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Functional Programming Conversion
Convert the specified files to a functional programming style, appropriate to the language of each file.
Files and instructions: $ARGUMENTS
Core principles to apply
- Pure functions: eliminate side effects, ensure functions return values based solely on their inputs
- Immutability: replace mutable state with immutable data structures and transformations
- Composition: prefer function composition and pipelines over imperative step-by-step logic
- Higher-order functions: use map, filter, reduce and similar constructs instead of manual loops
- Declarative style: express what should happen, not how to do it step by step
- Avoid shared mutable state: replace class-level or module-level mutable variables with function parameters and return values
How to interpret arguments
The arguments are free-form and flexible. They may contain:
- File references of any type and in any format:
@file.ts,file.py,main.go, utils.go,script.sh handler.rb - Additional natural language instructions alongside file references, such as:
- "and also convert the files imported by the specified file"
- "focus only on the data processing functions"
- "keep the existing class structure but make methods pure"
Parse the arguments to identify which files to convert and what additional instructions apply. When additional instructions reference related files (e.g. imports, dependents), follow those instructions to identify and convert those files as well.
Examples
/functional @service.ts @handler.ts— convert these two files/functional utils.py, helpers.py— comma-separated, no@prefix/functional @app.go and also convert the files it imports— convert with extended scope/functional @processor.rb focus only on the data transformation methods— convert with targeted instructions
How to proceed
- Read each specified file to understand its current structure and language
- If the user included additional instructions (e.g. "also convert imported files"), follow them to identify further files
- For each file, apply the functional programming principles above using idiomatic constructs for that file's language
- Preserve the existing functionality — the conversion should not change what the code does, only how it is structured
- Respect the repository's coding style rules while making the conversion
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 11d ago First seen · 50 lines · 13 tokens per session scan A 604c9f256f6c
functional is a skill published in the GitHub repository eugeniosegala/claude-connoisseur (9 stars, last pushed 4mo ago), licensed MIT. It adds 13 tokens to every session and 513 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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