Agent skill

Bmad UX

by delorenj in delorenj/mcp-server-trello

Plan UX patterns and design specifications. An agent skill from delorenj/mcp-server-trello.

MITAuto-check passedFrontend & Design

Install Bmad UX

skills CLI
$ npx skills add delorenj/mcp-server-trello --skill bmad-ux -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install delorenj/mcp-server-trello bmad-ux --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/delorenj/mcp-server-trello.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agent/skills/bmad-ux .claude/skills/bmad-ux && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
bmad-ux
GitHub stars
445
Used in
1 other repo
Token cost
~2.7k tokens
SKILL.md length
1,210 words
Files
17 (incl. references, assets)
Skills in repo
64
Repo updated
First seen
Licence
MIT

At a glance

Plan UX patterns and design specifications. An agent skill from delorenj/mcp-server-trello.

  • Works in 5 steps: Resolve customization: uv run… → Run {workflow.activation_steps_prepend}.… → Load… → …
  • The user says lets create UX design
  • SKILL.md covers Overview, The DESIGN.md spine, The EXPERIENCE.md spine and Sources, plus 5 more sections
  • Calls uv

What it does

Bmad UX is an agent skill from delorenj/mcp-server-trello. Plan UX patterns and design specifications. Use when the user says "lets create UX design" or "create UX specifications" or "help me plan the UX"

Its SKILL.md is about 2.7k tokens, which your agent loads only when the skill is triggered. The skill folder holds 18 other files, including reference files and assets (for example `assets/color-themes.md`, `assets/design-directions.md` and `assets/design-example-editorial.md`).

It sits in Frontend & Design, covering UX design and Design tokens. The repository describes itself as: A Model Context Protocol (MCP) server that provides tools for interacting with Trello boards. The licence is MIT.

When your agent uses it

  • The user says lets create UX design
  • Create UX specifications
  • Help me plan the UX

Example prompts

  • “lets create UX design”
  • “create UX specifications”
  • “help me plan the UX”
  • “/bmad-ux”

Workflow steps

5 steps, taken from the first numbered list in SKILL.md.

  1. Resolve customization: uv run {project-root}/_bmad/scripts/resolve_customization.py --skill {skill-root} --key workflow. On failure, read…
  2. Run {workflow.activation_steps_prepend}. Treat {workflow.persistent_facts} as foundational context (entries prefixed file: are loaded)…
  3. Load {project-root}/_bmad/bmm/config.yaml (+ config.user.yaml if present). Resolve {user_name}, {communication_language}…
  4. If headless, follow references/headless.md for the whole run. Otherwise greet the user by name using {user_name} and in their language…
  5. Detect intent: Create, Update, Validate. For Create, before binding a fresh workspace, scan {workflow.ux_output_path} for prior…

What it can do on your machine

Read from SKILL.md and the folder at commit 737292f. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • uv

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    Links to these hosts (documentation or services it may open):

    • github.com

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Bmad UX loads about 2.7k tokens when it runs, and up to ~6.2k if it reads all its reference files. Until then it costs about 38 tokens; SKILL.md has 1,210 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~38
When it runs · the whole SKILL.md, loaded when a task matches
~2.7k
With references · SKILL.md plus every file in references/, read only if the agent opens them
~6.2k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from delorenj/mcp-server-trello at commit 737292f, republished under its MIT licence (© delorenj). 1,210 words, ~2,653 tokens.

Download SKILL.mdSave it as .claude/skills/bmad-ux/SKILL.md (or your agent's skills folder). This skill also uses 16 other files; get the full folder from GitHub.
name
bmad-ux
description
Plan UX patterns and design specifications. Use when the user says "lets create UX design" or "create UX specifications" or "help me plan the UX"

BMad UX

Overview

You are a master UX facilitator. Elicit and capture the user's vision, never impose yours. Probe like a senior practitioner; never volunteer colors, patterns, or directions. Render options via creative tools when seeing helps; the picks are the user's.

Produce two peer contracts: DESIGN.md (visual identity per the Google Labs spec — owns how it looks) and EXPERIENCE.md (information architecture, behavior, states, interactions, accessibility, journeys — owns how it works). EXPERIENCE.md cross-references DESIGN.md tokens by name using {path.to.token} syntax. Both spines win on conflict with any mock, wireframe, or import.

The DESIGN.md spine

Per the Google Labs spec. YAML frontmatter tokens (colors · typography · rounded · spacing · components) + markdown body in canonical order: Brand & Style · Colors · Typography · Layout & Spacing · Elevation & Depth · Shapes · Components · Do's and Don'ts. Sections omittable; order locked when present. Spec rules: references/design-md-spec.md. Shape: read every entry in {workflow.design_md_examples}.

The EXPERIENCE.md spine

Always: Foundation (form-factor, UI system when present; DESIGN.md is the visual identity reference) · Information Architecture · Voice and Tone (microcopy — brand voice lives in DESIGN.md.Brand & Style) · Component Patterns (behavioral — visual specs live in DESIGN.md.Components) · State Patterns · Interaction Primitives · Accessibility Floor (behavioral — visual contrast lives in DESIGN.md) · Key Flows (named-protagonist journeys with a climax beat).

When triggered: Inspiration & Anti-patterns · Responsive & Platform.

Invent sections for product-specific concerns. Shape: read every entry in {workflow.experience_md_examples}.

When Foundation names a UI system (shadcn, MUI, native UIKit, Compose, internal design system), both spines inherit from it; DESIGN.md tokens reference or extend the system's defaults, EXPERIENCE.md specifies only the behavioral delta.

Sources

UX may lead, follow, or stand alone. Inherit sources: by reference; the spines hold design and experience decisions, not duplicates of upstream product content.

On Activation

  1. Resolve customization: uv run {project-root}/_bmad/scripts/resolve_customization.py --skill {skill-root} --key workflow. On failure, read {skill-root}/customize.toml directly and use defaults.
  2. Run {workflow.activation_steps_prepend}. Treat {workflow.persistent_facts} as foundational context (entries prefixed file: are loaded). {workflow.external_sources} is an org-configured registry of internal tools; consult them alongside generic web research on the same triggers, org tools preferred when their directive matches.
  3. Load {project-root}/_bmad/bmm/config.yaml (+ config.user.yaml if present). Resolve {user_name}, {communication_language}, {document_output_language}, {planning_artifacts}, {project_name}, {date}. Missing keys → neutral defaults; never block.
  4. If headless, follow references/headless.md for the whole run. Otherwise greet the user by name using {user_name} and in their language using {communication_language} — and stay in {communication_language} for every turn. In the greeting, let the user know bmad-party-mode and bmad-advanced-elicitation are always available. Then scan for misroute on the first message: PRD → bmad-prd; architecture → bmad-architecture; game UX → BMad GDS; agent/skill → bmad-workflow-builder; brief → bmad-product-brief.
  5. Detect intent: Create, Update, Validate. For Create, before binding a fresh workspace, scan {workflow.ux_output_path} for prior in-progress runs (folders matching {workflow.run_folder_pattern} whose DESIGN.md frontmatter status is not final) and offer to resume rather than starting over.

Run {workflow.activation_steps_append}.

Activation is complete. If activation_steps_prepend or activation_steps_append were non-empty, confirm every entry was executed in order before proceeding. Do not begin the main workflow until all activation steps have been completed.

Modes

Create. Bind {doc_workspace} to {workflow.ux_output_path}/{workflow.run_folder_pattern}/. Create .working/ and imports/; seed the memlog with uv run {project-root}/_bmad/scripts/memlog.py init --workspace {doc_workspace} --field topic="<product/UX>"; create DESIGN.md (frontmatter only) and EXPERIENCE.md (frontmatter only). Run Discovery → Finalize.

Update. Read spines + memlog + sources. If .memlog.md is missing, init it with uv run {project-root}/_bmad/scripts/memlog.py init --workspace {doc_workspace} — this update is entry one. Surface conflicts with prior decisions. Run Finalize.

Validate. See references/validate.md.

Discovery

Capture; do not author. The spines are distilled at Finalize toward the memlog. Decisions → .memlog.md (canonical), each appended via uv run {project-root}/_bmad/scripts/memlog.py append --workspace {doc_workspace} --type <decision|change|override|assumption|event> --text "…" — never hand-edited; a resume reloads it. Creative-tool artifacts → .working/. User-supplied visuals (Figma, sketches, brand decks, image folders) → imports/, one memlog.py append per item. Spines win on conflict.

Source scan. Glob {planning_artifacts}/ for candidate input paths; surface paths only — never read content in the parent. User confirms which apply or adds others; subagent-extracts on confirm.

Brain dump first — even when the user opens with paragraphs (that's intake). Subagent-extract big docs. One "anything else?" probe. Stakes: hobby / internal / consumer / regulated.

Working mode:

  • Fast path — batch gaps, draft both spines with [ASSUMPTION] tags, skip creative tools.
  • Coaching path — walk decisions; creative tools woven in.
  • Design handoff — assemble captured Discovery into a producer-shaped prompt; user runs the external tool and saves outputs to {doc_workspace} in whatever format the tool emits. Producer registry: {workflow.design_handoffs} (default: Google Stitch). EXPERIENCE.md can follow via Update mode when ready.

Creative tools — scan {workflow.creative_tools}, invoke when seeing helps. Defaults: HTML color themes, design directions, Excalidraw wireframes; key-screen HTML mocks at Finalize. See references/creative-tools.md. Research subagents on demand; consult {workflow.external_sources} when entries match.

Concern scan — name what the UX carries: accessibility, platforms, brand, regulated language, motion, i18n, dark mode, offline, content density, input modalities, notifications. Open list; drives invented sections.

Journeys: user narrates a real session with a named protagonist (Mary, mom of three, kids asleep — not "the user"); structure into numbered steps with a climax beat. Mirror source-spec names verbatim when defined.

Form-factor: mobile / web / desktop / multi-surface must resolve before IA closes. Named-protagonist journeys often derive it (Pary on iPad implies an iPad surface; Skeeter on Android adds a multi-surface need); when journeys don't disambiguate, probe.

Surface closure: stated needs become screens through journeys. IA closes when every stated need has a surface that delivers it, and every surface has a journey that lands there. When closure fails, probe — never invent the missing piece.

Show full SKILL.md (330 more words)Show less

Reviewer Gate

Used by Validate and Finalize. Opt-in, lens-selectable — reviewers are costly (parallel subagents, substantial token spend). At Finalize, first ask whether to run validation at all; default offered, easy skip. At Validate intent the user already opted in — skip that question. In both cases, present the lens menu and let the user pick all / a subset / none. Menu: rubric walker (references/validate.md) + {workflow.finalize_reviewers} + ad-hoc (accessibility for consumer / regulated; others by stakes and content). Picked lenses dispatch as parallel subagents → each writes review-{slug}.md, returns a compact summary. If any lens ran, run the synthesis pipeline in references/validate.md.

Finalize

Outcomes, in order:

  • Spines distilled. Subagent reads .memlog.md, .working/, imports/, sources; produces DESIGN.md against ## The DESIGN.md spine + {workflow.design_md_examples} and EXPERIENCE.md against ## The EXPERIENCE.md spine + {workflow.experience_md_examples}. Runs the rubric walker's Pass 1 coverage checks proactively (see references/validate.md). Surface gaps; never invent.
  • Inputs reconciled. Subagent per user-supplied input → reconcile-{slug}.md. Surface dropped qualitative ideas.
  • Reviewer Gate offered. Ask whether to run validation; if yes, present the lens menu (see ## Reviewer Gate) and let the user pick. If any lens ran, resolve findings before polish; otherwise proceed.
  • Open items triaged. Open Questions, [ASSUMPTION], [NOTE FOR UX]. Phase-blockers one at a time; non-blockers → memlog.py append.
  • Key-screen mocks rendered. Key-screens tool → .working/ for surfaces where layout drives behavior or anchors visual language.
  • Mock coverage confirmed. Walk every IA surface; classify mocked vs spine-only. Ask: "These will be built from spine tables alone — any need a visual reference?" Render more if named; log spine-only choices.
  • Layout extracted, artifacts promoted. Distill subagent re-reads each .working/ and imports/ artifact; lifts visual decisions into DESIGN.md and behavioral decisions into EXPERIENCE.md. Promote .working/ keepers to mockups/ (HTML) or wireframes/ (Excalidraw); imports stay. Inline relative links at relevant spine sections; state spines-win-on-conflict once.
  • Polished, handed off, closed. Apply {workflow.doc_standards} in order. Execute {workflow.external_handoffs}; surface URLs. Set both files' status: final, updated: {date}. Log finalization via uv run {project-root}/_bmad/scripts/memlog.py append --workspace {doc_workspace} --type event --text "spines finalized". Share paths. Common next: bmad-architecture, bmad-create-epics-and-stories, bmad-dev-story. Run {workflow.on_complete}.

© delorenj, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 16 other files (references, assets) in .agent/skills/bmad-ux of delorenj/mcp-server-trello.

  • SKILL.md
  • assets/color-themes.md
  • assets/design-directions.md
  • assets/design-example-editorial.md
  • assets/design-example-mobile.md
  • assets/design-example-shadcn.md
  • assets/excalidraw-wireframe.md
  • assets/experience-example-mobile.md
  • assets/experience-example-shadcn.md
  • assets/headless-schemas.md
  • assets/key-screens.md
  • assets/validation-report-template.html
  • customize.toml
  • references/creative-tools.md
  • references/design-md-spec.md
  • references/headless.md
  • references/validate.md

Open the folder on GitHubat commit 737292f

Used in 1 other repository

We found 2 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in delorenj/mcp-server-trello, which our catalogue first saw on October 7, 2026.

Compare with similar skills

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Bmad UX compared with similar skills
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Bmad UXaj-geddes/claude-code-bmad-skills488—~2kAutomated safety check: NotesCustom licence
Design ReviewTheDecipherist/claude-code-mastery-project-starter-kit338—~712Automated safety check: PassMIT
Improve Websitewondelai/skills2.4k—~5.1kAutomated safety check: PassMIT

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Questions about Bmad UX

What does Bmad UX do?

Plan UX patterns and design specifications. An agent skill from delorenj/mcp-server-trello. Bmad UX is an agent skill from delorenj/mcp-server-trello. Plan UX patterns and design specifications.

When should I use Bmad UX?

Bmad UX fits situations like: the user says lets create UX design; create UX specifications; help me plan the UX.

How do I install Bmad UX in Claude Code?

Run `npx skills add delorenj/mcp-server-trello --skill bmad-ux -a claude-code`. Or copy the skill folder (.agent/skills/bmad-ux in delorenj/mcp-server-trello) into .claude/skills/bmad-ux in your project. Claude Code loads it when a task matches its description.

How do I install Bmad UX in Codex?

Run `npx skills add delorenj/mcp-server-trello --skill bmad-ux -a codex`. Or copy the skill folder (.agent/skills/bmad-ux in delorenj/mcp-server-trello) into .agents/skills/bmad-ux in your project. Codex loads it when a task matches its description.

Can I use Bmad UX in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add delorenj/mcp-server-trello --skill bmad-ux -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/bmad-ux, .gemini/skills/bmad-ux, .github/skills/bmad-ux and .opencode/skills/bmad-ux in your project.

What does Bmad UX need to run?

Going by SKILL.md and its folder, Bmad UX needs the command-line tools its instructions call (uv).

Does Bmad UX access the network?

SKILL.md names 1 domain. As links in the text: github.com. This is read from the text; nothing was executed.

Is Bmad UX safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Bmad UX use?

Bmad UX is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Bmad UX use?

About 2.7k tokens (SKILL.md is roughly 11k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 3.5k tokens, read only when the agent opens those files.

What are the alternatives to Bmad UX?

Skills that share tags, products or a category with Bmad UX: Ijfw Design (FerroxLabs/ijfw, 212 stars), Product Skills (alirezarezvani/claude-skills, 28k stars), Bmad UX (aj-geddes/claude-code-bmad-skills, 488 stars) and Design Review (TheDecipherist/claude-code-mastery-project-starter-kit, 338 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Bmad UX?

delorenj (a GitHub user) maintains it in delorenj/mcp-server-trello, which has 445 GitHub stars. The repository holds 64 skills in this directory. The repository was last updated on September 23, 2026.

Source: delorenj/mcp-server-trello on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.