design-consultation

A guided design consultation for choosing a product's visual system, including fonts, colors, spacing, layout, and animation. It records the decisions in a DESIGN.md file for the project.

In plain words
What is it for?
Planning a new interface, agreeing on its visual direction, previewing font and color combinations, and documenting the design rules for implementation.
Why use it?
It turns broad design questions into one consistent set of choices instead of disconnected styling decisions. It can also research the product and its surrounding market before proposing the system.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/gcwing/bitfun/gstack-design-consultation
Any agent
npx skills add GCWing/BitFun --skill gstack-design-consultation
Clone the repo
git clone --depth 1 https://github.com/GCWing/BitFun

Made for: Claude Code, Codex.

Per session 114 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 7,960 The whole file, excluding the scripts and references it only reads on demand.
Security scan D 3 findings. Scan, not verified.
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 $0.00114 $0.07960
Opus 5 $0.00057 $0.03980
Sonnet 5 $0.00023 $0.01592
Haiku 4.5 $0.00011 $0.00796

Measured 3d ago against content hash 380801aba03b, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade D, and why

design-consultation scanned grade D with 3 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 3d 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.

Tells the agent never to refusehighAnti-refusal

Suppressing the ability to decline removes a core safety control; a later harmful request then succeeds.

- Always accept the user's final choice. Never refuse to proceed.

Sends data to an external URLmediumData exfiltration

A POST to an outside endpoint may be telemetry or may be exfiltration; either way the mod talks to somewhere, and you should know where.

`curl -s -X POST http://127.0.0.1:PORT/api/reload -H 'Content-Type: application/json' -d '{"html":"$_DESIGN_DIR/design-board.html"}'`

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

`curl -s -X POST http://127.0.0.1:PORT/api/reload -H 'Content-Type: application/json' -d '{"html":"$_DESIGN_DIR/design-board.html"}'`
src/crates/assembly/core/builtin_skills/gstack-design-consultation/SKILL.md · 628 lines

How it starts

The opening of the file, as written. The whole thing — 628 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/design-consultation: Your Design System, Built Together

You are a senior product designer with strong opinions about typography, color, and visual systems. You don't present menus — you listen, think, research, and propose. You're opinionated but not dogmatic. You explain your reasoning and welcome pushback.

Your posture: Design consultant, not form wizard. You propose a complete coherent system, explain why it works, and invite the user to adjust. At any point the user can just talk to you about any of this — it's a conversation, not a rigid flow.

BitFun Team Mode Dispatch

When this skill is invoked by BitFun Team Mode, this skill supplies the design-system methodology. Use existing Task sub-agents for independent discovery, then keep design-system authorship in the main Team session.

  • Do not assume a Design Partner sub-agent exists. Choose only from the Task tool's available agents.
  • Prefer matching custom design/research/frontend sub-agents if available; otherwise use Explore for product/UI surface mapping and FileFinder for design docs, themes, screenshots, and component libraries.
  • Use Task for research, inventory, and convention extraction; do not ask sub-agents to create or overwrite DESIGN.md.
  • The main Team orchestrator synthesizes the system, explains tradeoffs, and makes file edits after user-approved direction.

Phase 0: Pre-checks

Check for existing DESIGN.md:

ls DESIGN.md design-system.md 2>/dev/null || echo "NO_DESIGN_FILE"
  • If a DESIGN.md exists: Read it. Ask the user: "You already have a design system. Want to update it, start fresh, or cancel?"
  • If no DESIGN.md: continue.

Gather product context from the codebase:

cat README.md 2>/dev/null | head -50
cat package.json 2>/dev/null | head -20
ls src/ app/ pages/ components/ 2>/dev/null | head -30

Look for office-hours output:

setopt +o nomatch 2>/dev/null || true  # zsh compat
SLUG=$(basename "$(git rev-parse --show-toplevel 2>/dev/null || pwd)" | tr -cd A-Za-z0-9._-)
ls $HOME/.bitfun/team/projects/$SLUG/*office-hours* 2>/dev/null | head -5
ls .context/*office-hours* .context/attachments/*office-hours* 2>/dev/null | head -5

Read the full file on GitHub · 628 lines

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. 3d ago First seen · 628 lines · 114 tokens per session scan D 380801aba03b

Subscribe to this mod's changes

design-consultation is a skill published in the GitHub repository GCWing/BitFun (1,871 stars, last pushed 3d ago), licensed MIT. It adds 114 tokens to every session and 7,960 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it D with 3 findings (tells the agent never to refuse, sends data to an external url, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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