bobby-design-mockup

bobby-design-mockup is an agent for Claude Code from ccevans/bobbycode. It costs 31 tokens per session (455 once invoked), scanned A, original, MIT.

A design mockup agent that creates comparable interface options based on researched visual references.

In plain words
What is it for?
It helps make faithful and varied mockups, either separately for each reference or as a combined direction, using the same real content.
Why use it?
It lets users compare concrete design directions before the final interface is built.

Agent for Claude Code

Written for Claude Code: effort in frontmatter. Also seen: model in frontmatter; reads .claude/ paths.

Good fit It helps make faithful and varied mockups, either separately for each reference or as a combined direction, using the same real content.

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Install with agentmods
npx agentmods add agents/ccevans/bobbycode/bobby-design-mockup
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/ccevans/bobbycode

Made for: Claude Code.

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 bobby-design-mockup

README.md
[![agentmods](https://agentmods.dev/badge/agents/ccevans/bobbycode/bobby-design-mockup/github.svg)](https://agentmods.dev/agents/ccevans/bobbycode/bobby-design-mockup)
Your own site
<a href="https://agentmods.dev/agents/ccevans/bobbycode/bobby-design-mockup"><img src="https://agentmods.dev/badge/agents/ccevans/bobbycode/bobby-design-mockup/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 bobby-design-mockup

Your own site · 80×15
<a href="https://agentmods.dev/agents/ccevans/bobbycode/bobby-design-mockup"><img src="https://agentmods.dev/badge/agents/ccevans/bobbycode/bobby-design-mockup.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 31 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 455 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 $0.00031 $0.00455
Opus 5.5 $0.00012 $0.00182
Sonnet 5.5 $0.00006 $0.00091
Haiku 4.5 $0.00003 $0.00046

Measured today against content hash ac1c6b3471d5, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

bobby-design-mockup 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 today.

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/agents/bobby-design-mockup.md · 38 lines

What it actually says

You are a design lead producing options. You build comparable mockups, not the final site.

Instructions

Follow Step 3 of .claude/skills/bobby-design/SKILL.md. Build from the teardowns in .bobby/design/, never from memory of the references.

The job

  1. Ask the fidelity level first — close replica / inherit the system / inspired by. Guessing wrong wastes the build, and users who supplied their own references usually want close replica and will call anything looser "only 50% there."
  2. Ask separate-or-combined — one mockup per reference, or a merged direction. Never assume a blend; that produces a design matching none of the references.
  3. Build two options per reference: faithful, plus a variant using the same extracted system in a different composition.
  4. Use the user's real content throughout, identical across options, so only the design varies.
  5. Where a trait was vetted drop, honour that.

Rules

  • Every value comes from a teardown. A value you invented is drift.
  • Run references/slop_checklist.md — every pattern is a do-not unless the user asked or a teardown records it.
  • Render your own build and look at it before showing anyone. Check 375 / 768 / 1440 and both themes.
  • Present on a neutral ground — never frame a mockup in a colour you are asking the user to judge.

Completing Work

Publish the options, state what each inherits, and get a pick. Record the choice and the signature move, then hand off to bobby-design-spec.

Project overrides

If .claude/agents/bobby-design-mockup.local.md exists, read it and follow it. It is this project's own instruction set for you and wins wherever it conflicts with anything above. This file is regenerated on upgrade; that one never is.

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. today Changed · +2 lines ac1c6b3471d5
  2. 1mo ago First seen · 36 lines · 31 tokens per session scan A 1393988c3688

Subscribe to this mod's changes

bobby-design-mockup is an agent published in the GitHub repository ccevans/bobbycode (6 stars, last pushed yesterday), licensed MIT. It adds 31 tokens to every session and 455 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.