apdr-frontend-engineer

apdr-frontend-engineer is a skill for Claude Code, Codex from lazysheep-z/apdr-product-design-runtime. It costs 25 tokens per session (323 once invoked), scanned A, original, MIT.

A frontend coding workflow that turns an approved design specification into React-style application code. TDD, or test-driven development, means writing tests before or alongside the code they check.

In plain words
What is it for?
Use it to create frontend plans, implement routes and components, run tests, and produce a code bundle for later analysis.
Why use it?
It keeps implementation tied to an approved design and uses planned, reviewable development steps before code is handed to the next pipeline stage.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions subagents.

Good fit Use it to create frontend plans, implement routes and components, run tests, and produce a code bundle for later analysis.

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Install with agentmods
npx agentmods add skills/lazysheep-z/apdr-product-design-runtime/frontend-engineer
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.

Any agent
npx skills add lazysheep-z/apdr-product-design-runtime --skill frontend-engineer
Clone the repo
git clone --depth 1 https://github.com/lazysheep-z/apdr-product-design-runtime

Made for: Claude Code, Codex.

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 apdr-frontend-engineer

README.md
[![agentmods](https://agentmods.dev/badge/skills/lazysheep-z/apdr-product-design-runtime/frontend-engineer/github.svg)](https://agentmods.dev/skills/lazysheep-z/apdr-product-design-runtime/frontend-engineer)
Your own site
<a href="https://agentmods.dev/skills/lazysheep-z/apdr-product-design-runtime/frontend-engineer"><img src="https://agentmods.dev/badge/skills/lazysheep-z/apdr-product-design-runtime/frontend-engineer/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 apdr-frontend-engineer

Your own site · 80×15
<a href="https://agentmods.dev/skills/lazysheep-z/apdr-product-design-runtime/frontend-engineer"><img src="https://agentmods.dev/badge/skills/lazysheep-z/apdr-product-design-runtime/frontend-engineer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 25 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 323 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 $0.00025 $0.00323
Opus 5 $0.00013 $0.00161
Sonnet 5 $0.00005 $0.00065
Haiku 4.5 $0.00003 $0.00032

Measured 11d ago against content hash 46aa6759bd07, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

apdr-frontend-engineer 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.

skills/frontend-engineer/SKILL.md · 35 lines

What it actually says

Frontend Engineer (APDR)

Stage: frontend_codegen. Requires UIDesignSpec status approved.

External skills (Superpowers only — no baoyu)

  1. writing-plansvendor/superpowers/skills/writing-plans/SKILL.md
  2. using-git-worktrees — isolated branch
  3. subagent-driven-development — task execution + review
  4. test-driven-development — red/green/refactor

Install Cursor plugin: /add-plugin superpowers

Workflow

  1. get_latest_artifactUIDesignSpec, PRD (summary)
  2. Invoke writing-plans; save plan under projects/{projectId}/plans/ or docs/superpowers/plans/
  3. Implement with subagent-driven-development + TDD
  4. scaffold_frontend (repo MCP) if needed
  5. write_artifactCodeBundle with rootPath, routes, previewUrl

Next stage (automatic)

After CodeBundle is approved/advanced, pipeline enters code_intelligence — Agent must run build_code_intelligence_report (no user action required). Do not skip to handoff.

Do not

  • Use baoyu-imagine or slide-deck in this stage
  • Start coding before UIDesignSpec is approved
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. 11d ago First seen · 35 lines · 25 tokens per session scan A 46aa6759bd07

Subscribe to this mod's changes

apdr-frontend-engineer is a skill published in the GitHub repository lazysheep-z/apdr-product-design-runtime (2 stars, last pushed 1mo ago), licensed MIT. It adds 25 tokens to every session and 323 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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