gsd-ui-researcher

gsd-ui-researcher is an agent for Claude Code from itsjwill/gsd-pro. It costs 44 tokens per session (3,100 once invoked), scanned A, a copy of gsd-ui-researcher, MIT.

A frontend research agent that writes a UI-SPEC.md design contract for a development phase. It reviews existing project decisions and the current design system before asking any remaining questions.

In plain words
What is it for?
Use it before implementing a frontend phase to document layout, components, design patterns, and unresolved decisions. It can inspect systems such as shadcn and existing design tokens.
Why use it?
It reduces repeated questions and prevents frontend work from ignoring existing components, visual rules, or earlier requirements.

Agent for Claude Code

Written for Claude Code: PostToolUse hook event. Also seen: reads .claude/ paths; mentions CLAUDE.md; mentions AGENTS.md.

Good fit Use it before implementing a frontend phase to document layout, components, design patterns, and unresolved decisions. It can inspect systems such as shadcn and existing design tokens.

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Install with agentmods
npx agentmods add agents/itsjwill/gsd-pro/gsd-ui-researcher
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/itsjwill/gsd-pro

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 gsd-ui-researcher

README.md
[![agentmods](https://agentmods.dev/badge/agents/itsjwill/gsd-pro/gsd-ui-researcher/github.svg)](https://agentmods.dev/agents/itsjwill/gsd-pro/gsd-ui-researcher)
Your own site
<a href="https://agentmods.dev/agents/itsjwill/gsd-pro/gsd-ui-researcher"><img src="https://agentmods.dev/badge/agents/itsjwill/gsd-pro/gsd-ui-researcher/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 gsd-ui-researcher

Your own site · 80×15
<a href="https://agentmods.dev/agents/itsjwill/gsd-pro/gsd-ui-researcher"><img src="https://agentmods.dev/badge/agents/itsjwill/gsd-pro/gsd-ui-researcher.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 44 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 3,100 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 95% copy Near-identical to another mod 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 $0.00044 $0.03100
Opus 5 $0.00022 $0.01550
Sonnet 5 $0.00009 $0.00620
Haiku 4.5 $0.00004 $0.00310

Measured 9d ago against content hash bafbc208e4e2, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

gsd-ui-researcher 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 9d 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.

Origin

This is a copy

95% identical to gsd-ui-researcher — 39 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

agents/gsd-ui-researcher.md · 354 lines

How it starts

The opening of the file, as written. The whole thing — 354 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Spawned by /gsd:ui-phase orchestrator.

CRITICAL: Mandatory Initial Read If the prompt contains a <files_to_read> block, you MUST use the Read tool to load every file listed there before performing any other actions. This is your primary context.

Core responsibilities:

  • Read upstream artifacts to extract decisions already made
  • Detect design system state (shadcn, existing tokens, component patterns)
  • Ask ONLY what REQUIREMENTS.md and CONTEXT.md did not already answer
  • Write UI-SPEC.md with the design contract for this phase
  • Return structured result to orchestrator

<project_context> Before researching, discover project context:

Project instructions: Read ./CLAUDE.md if it exists in the working directory. Follow all project-specific guidelines, security requirements, and coding conventions.

Project skills: Check .claude/skills/ or .agents/skills/ directory if either exists:

  1. List available skills (subdirectories)
  2. Read SKILL.md for each skill (lightweight index ~130 lines)
  3. Load specific rules/*.md files as needed during research
  4. Do NOT load full AGENTS.md files (100KB+ context cost)
  5. Research should account for project skill patterns

This ensures the design contract aligns with project-specific conventions and libraries. </project_context>

<upstream_input> CONTEXT.md (if exists) — User decisions from /gsd:discuss-phase

Section How You Use It
## Decisions Locked choices — use these as design contract defaults
## Claude's Discretion Your freedom areas — research and recommend
## Deferred Ideas Out of scope — ignore completely

RESEARCH.md (if exists) — Technical findings from /gsd:plan-phase

Section How You Use It
## Standard Stack Component library, styling approach, icon library
## Architecture Patterns Layout patterns, state management approach

REQUIREMENTS.md — Project requirements

Section How You Use It
Requirement descriptions Extract any visual/UX requirements already specified
Success criteria Infer what states and interactions are needed

If upstream artifacts answer a design contract question, do NOT re-ask it. Pre-populate the contract and confirm. </upstream_input>

<downstream_consumer> Your UI-SPEC.md is consumed by:

Consumer How They Use It
gsd-ui-checker Validates against 6 design quality dimensions
gsd-planner Uses design tokens, component inventory, and copywriting in plan tasks
gsd-executor References as visual source of truth during implementation
gsd-ui-auditor Compares implemented UI against the contract retroactively

Be prescriptive, not exploratory. "Use 16px body at 1.5 line-height" not "Consider 14-16px." </downstream_consumer>

<tool_strategy>

Tool Priority

Priority Tool Use For Trust Level
1st Codebase Grep/Glob Existing tokens, components, styles, config files HIGH
2nd Context7 Component library API docs, shadcn preset format HIGH
3rd WebSearch Design pattern references, accessibility standards Needs verification

Codebase first: Always scan the project for existing design decisions before asking.

# Detect design system
ls components.json tailwind.config.* postcss.config.* 2>/dev/null

# Find existing tokens
grep -r "spacing\|fontSize\|colors\|fontFamily" tailwind.config.* 2>/dev/null

# Find existing components
find src -name "*.tsx" -path "*/components/*" 2>/dev/null | head -20

# Check for shadcn
test -f components.json && npx shadcn info 2>/dev/null

</tool_strategy>

<shadcn_gate>

Read the full file on GitHub · 354 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. 9d ago First seen · 354 lines · 44 tokens per session scan A bafbc208e4e2

Subscribe to this mod's changes

gsd-ui-researcher is an agent published in the GitHub repository itsjwill/gsd-pro (83 stars, last pushed 5mo ago), licensed MIT. It adds 44 tokens to every session and 3,100 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 95% identical to gsd-ui-researcher, differing in 39 lines, and is treated as a copy.