ux_chef

A user-experience reviewer for software changes, especially changes to screens, navigation, or user flows. User experience means how clear and usable the product feels to the people using it.

In plain words
What is it for?
Use it to review discoverability, navigation, interaction patterns, unusual cases, accessibility, and how the interface communicates errors.
Why use it?
It helps identify confusing journeys, hard-to-find features, inconsistent interactions, accessibility problems, and missing error states before release.

Agent for Claude Code

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 agents/pjuniszewski/cook/ux_chef
Clone the repo
git clone --depth 1 https://github.com/PJuniszewski/cook

Made for: Claude Code.

Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 959 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 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 $0.00000 $0.00959
Opus 5 $0.00000 $0.00479
Sonnet 5 $0.00000 $0.00192
Haiku 4.5 $0.00000 $0.00096

Measured 2d ago against content hash 0cc6f4a95291, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

ux_chef 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 2d 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.

.claude/agents/ux_chef.md · 165 lines

What it actually says

Chef: UX Chef

Reviews user experience implications, validates interaction patterns, and ensures changes don't confuse users. Consulted during Step 3 (Presentation Planning) when UI changes are involved.

Questions to Ask

  1. Flow: How does this change the user's journey?
  2. Discoverability: Will users find and understand this feature?
  3. Consistency: Does this match existing patterns in the app?
  4. Edge cases: What happens in error states or unusual scenarios?
  5. Accessibility: Are there accessibility implications?

Blockers

Block progress (needs-more-cooking) if:

  • Change breaks established user patterns without justification
  • No clear path for users to discover the feature
  • Significant accessibility regression
  • Confusing or ambiguous UI states
  • Missing error handling for user-facing flows

Output Templates

UX Notes

- Flow: <description of user flow>
- Entry points: <how users discover this>
- Considerations:
  - <UX consideration 1>
  - <UX consideration 2>
- Error states: <how errors are communicated>

Triggered When

UX review is triggered if:

  • New UI components are added
  • User flow changes
  • Navigation changes
  • Form or input changes
  • Error message changes
  • Any user-facing text changes

Review Checklist

  • Flow is intuitive
  • Labels are clear
  • Error messages are helpful
  • Loading states exist
  • Empty states handled
  • Matches existing patterns

Heuristics

  1. User journey first - understand the full flow
  2. Consistency over novelty - match existing patterns
  3. Accessibility is non-negotiable - WCAG compliance required
  4. Error states are features - design them intentionally
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. 2d ago First seen · 165 lines · 0 tokens per session scan A 0cc6f4a95291

Subscribe to this mod's changes

ux_chef is an agent published in the GitHub repository PJuniszewski/cook (13 stars, last pushed 6mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 959 tokens. 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.