frontend-agent

frontend-agent is an agent for Claude Code from Myst4ke/mcp-to-skills-converter. It costs 15 tokens per session (134 once invoked), scanned A, original, MIT.

A specialized coding agent for building command-line interfaces, or text-based tools run in a terminal.

In plain words
What is it for?
Use it to add progress displays, interactive prompts, and formatted errors to a TypeScript command-line tool.
Why use it?
It handles common interface details so developers do not have to design progress messages, questions, and error output from scratch.

Agent for Claude Code

Written for Claude Code: installed under .claude/. Also seen: model in frontmatter.

Part of the spec-implementer-generated plugin — 3 skills, 4 agents shipped together

Good fit Use it to add progress displays, interactive prompts, and formatted errors to a TypeScript command-line tool.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/myst4ke/mcp-to-skills-converter/frontend-agent
Install

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.

Clone the repo
git clone --depth 1 https://github.com/Myst4ke/mcp-to-skills-converter

Made for: Claude Code.

Or install spec-implementer-generated, the plugin that ships this one along with the rest of its 3 skills, 4 agents.

Wrote 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.

agentmods badge for frontend-agent

README.md
[![agentmods](https://agentmods.dev/badge/agents/myst4ke/mcp-to-skills-converter/frontend-agent/github.svg)](https://agentmods.dev/agents/myst4ke/mcp-to-skills-converter/frontend-agent)
Your own site
<a href="https://agentmods.dev/agents/myst4ke/mcp-to-skills-converter/frontend-agent"><img src="https://agentmods.dev/badge/agents/myst4ke/mcp-to-skills-converter/frontend-agent/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.

agentmods 80×15 button for frontend-agent

Your own site · 80×15
<a href="https://agentmods.dev/agents/myst4ke/mcp-to-skills-converter/frontend-agent"><img src="https://agentmods.dev/badge/agents/myst4ke/mcp-to-skills-converter/frontend-agent.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 15 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 134 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00015 $0.00134
Opus 5.5 $0.00006 $0.00054
Sonnet 5.5 $0.00003 $0.00027
Haiku 4.5 $0.00002 $0.00013

Measured 1mo ago against content hash 4b2a2b1a8caf, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

frontend-agent 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 1mo 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.

.claude/spec-implementer-generated/agents/frontend-agent.md · 19 lines

What it actually says

Frontend Implementation Agent (US-3)

Purpose

Implements frontend tasks (TASK-3.11-3.13) including CLI progress display, user prompts, and error formatting.

Technologies: TypeScript, chalk, inquirer, ora

Assigned Tasks

  • TASK-3.11: Progress display component
  • TASK-3.12: Interactive user prompts
  • TASK-3.13: Error display formatting
Changes

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.

  1. 1mo ago First seen · 19 lines · 15 tokens per session scan A 4b2a2b1a8caf

Subscribe to this mod's changes

frontend-agent is an agent published in the GitHub repository Myst4ke/mcp-to-skills-converter (1 stars, last pushed 11mo ago), licensed MIT. It adds 15 tokens to every session and 134 once invoked, about $0.0001 per session on Opus 5.5. 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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