spectre-ux

spectre-ux is a skill for Claude Code, Codex from joenandez/spectre. It costs 48 tokens per session (1,399 once invoked), scanned A, original, MIT.

A workflow skill that turns product requirements into a detailed description of how a feature behaves. It documents user flows, screens, components, states, wording, and accessibility in an ux.md file, without prescribing visual style.

In plain words
What is it for?
Use it after a scope or product-requirements document exists when a feature needs a UX behaviour specification. It reads the project’s requirements, confirms the flows, and then writes the detailed specification under the managed feature directory.
Why use it?
It resolves how a feature should respond before implementation begins. Its two-stage process helps confirm user flows first and prevents developers from having to guess missing behaviour.

Skill for Claude CodeCodex

Written for Claude Code and Codex: disable-model-invocation in frontmatter, but also agents/openai.yaml present.

Good fit Use it after a scope or product-requirements document exists when a feature needs a UX behaviour specification. It reads the project’s requirements, confirms the flows, and then writes the detailed specification under the managed feature directory.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/joenandez/spectre/spectre-ux
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 joenandez/spectre --skill spectre-ux
Clone the repo
git clone --depth 1 https://github.com/joenandez/spectre

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 spectre-ux

README.md
[![agentmods](https://agentmods.dev/badge/skills/joenandez/spectre/spectre-ux/github.svg)](https://agentmods.dev/skills/joenandez/spectre/spectre-ux)
Your own site
<a href="https://agentmods.dev/skills/joenandez/spectre/spectre-ux"><img src="https://agentmods.dev/badge/skills/joenandez/spectre/spectre-ux/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 spectre-ux

Your own site · 80×15
<a href="https://agentmods.dev/skills/joenandez/spectre/spectre-ux"><img src="https://agentmods.dev/badge/skills/joenandez/spectre/spectre-ux.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 48 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,399 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00048 $0.01399
Opus 5.5 $0.00019 $0.00560
Sonnet 5.5 $0.00010 $0.00280
Haiku 4.5 $0.00005 $0.00140

Measured 1mo ago against content hash 76a145689049, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

spectre-ux 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 1mo 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.

plugins/spectre-codex/skills/spectre-ux/SKILL.md · 95 lines

How it starts

The opening of the file, as written. The whole thing — 95 lines — stays where its author put it; the contents beside it link to each section on GitHub.

ux

Turn requirements into a behavioral spec — what users see/do and the system response, not visual taste. Align flows, then write ux.md.

Inputs

  • $ARGUMENTS — explicit feature name/root or descendant requirements artifact.
  • Requirements — first present, read fully:
    1. {OUT_DIR}/concepts/scope.md (canonical, preferred)
    2. {OUT_DIR}/specs/prd.md
    3. {OUT_DIR}/task_summary.md
  • If none exist → ask for scope context or recommend $spectre:spectre-scope first; do not invent scope.

Working Set (late-bound — read at run-time, never inline)

  • Reuse a managed FEATURE_ROOT only when explicit/current-thread evidence ties it to this work (physical directory wins; never branch/recency/lifecycle/scans); distinct work ignores ambient roots. Otherwise, including on collision, standalone MUST first load and follow Skill(spectre-feature-root) through DONE; orchestrated calls escalate. Keep writes beneath it and pass it unchanged.
  • Repair stale feature/root metadata in artifacts this workflow touches.
  • OUT_DIR = FEATURE_ROOT.
  • Existing UI: one Stage-1 @spectre_patterns dispatch for similar screens/tokens — ≤~2K in-thread, no files.

Method / guardrails

Stage 1 — Flow discovery & alignment (align before specifying).

  • Identify user segments: first-time/returning, anon/signed-in, free/paid, role-based.
  • Identify goals, entry points, and completion states.
  • Narrate each flow: Goal · Entry · User sees → User does → System responds · branches · success · Questions; call out segment divergence.
  • Present a take and ask for pushback. Every initial or feedback-revised flow presentation ends with the compact handoff table:
Handoff Details
🧭 Current phase Flow approval.
📦 What was just done Initial or revised flows.
▶️ Proposed next step Render resolved action.
  • CONTINUATION: Prototype when interaction, layout, visual validation, or stakeholder review materially matters; otherwise Plan when Scope + flows suffice. Render $spectre:spectre-prototype {FEATURE_ROOT} FROM_UX=true or $spectre:spectre-plan {FEATURE_ROOT}; at most one explicit conditional alternative.
  • Flows approved: complete {OUT_DIR}/ux.md, then Prototype or Plan with resolved values.
  • GATE: Never write {OUT_DIR}/ux.md before explicit flow approval + selected continuation. Feedback without approval → revise and re-present. Ambiguous approval or missing route authority → ask only the unresolved choice.

Read the full file on GitHub · 95 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 1mo ago Changed 76a145689049
  2. 1mo ago Changed 2b40babe7f13
  3. 1mo ago Changed · +7 lines · -52 tokens per session 9d17fbac3b27
  4. 2mo ago Changed 862dab2228c4
  5. 2mo ago First seen · 88 lines · 100 tokens per session scan A 4f9354951d74

Subscribe to this mod's changes

spectre-ux is a skill published in the GitHub repository joenandez/spectre (164 stars, last pushed 1mo ago), licensed MIT. It adds 48 tokens to every session and 1,399 once invoked, about $0.0002 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 2026-08-30.

Related

spectre-ux compared with skills from other repositories

spectre-ux next to 6 skills from other repositories
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spectre-uxjoenandez/spectreSkill1641mo agoMITA48Claude Code, Codex
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visual-ralphYeachan-Heo/oh-my-codexSkill34k3d agoMITA52Codex
glance-canonical-layoutsandroid/skillsSkill10kyesterdayApache-2.0A56Claude Code
accessibilitymicrosoft/hve-coreSkill1.6kyesterdayMITA47Claude Code