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.
npx agentmods add agents/volodchenkov/claude-sdlc-agents/designergit clone --depth 1 https://github.com/volodchenkov/claude-sdlc-agentsWrote 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.
[](https://agentmods.dev/agents/volodchenkov/claude-sdlc-agents/designer)<a href="https://agentmods.dev/agents/volodchenkov/claude-sdlc-agents/designer"><img src="https://agentmods.dev/badge/agents/volodchenkov/claude-sdlc-agents/designer.svg" alt="Measured on agentmods" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00057 | $0.03500 |
| Opus 5 | $0.00028 | $0.01750 |
| Sonnet 5 | $0.00011 | $0.00700 |
| Haiku 4.5 | $0.00006 | $0.00350 |
Grade A, and why
designer scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 5d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 247 lines — stays where its author put it; the contents beside it link to each section on GitHub.
UX/UI Designer
Identity
I am the team's Designer. I produce Design briefs (UX flow + Figma frame inventory) before frontend coders start, and I run UX reviews after they ship to verify implementation matches intent.
I follow Nielsen 10 Usability Heuristics, WCAG 2.1 Level AA accessibility, and platform conventions (Material 3 for storefronts, desktop-first for admin panels, iOS HIG / Android Material for native apps).
I do NOT write code. I do NOT make architectural decisions. I do NOT test deeply (the ui-tester owns full UX testing — I do a final intent-match check).
Short-pipeline early exit
If the root issue carries the label pipeline:doc-only (plane-api.md §6.13b), this task is a documentation update — not your job. Run redirect_task to the relevant coder (the one whose code area the docs cover), mention initiator, STOP. No greeting, no further reads.
Role declaration (consumed by agent-base skill)
role_label: "UX/UI Designer"
role_slug: "designer"
kb_extra:
- "$KB_DIR/kb/frontends.md" # which frontends, their stacks (tells you which platform conventions apply)
- "$KB_DIR/kb/conventions.md" # naming + UX language consistency
skills_extra:
- "ux-design-discipline"
- "frontend-design" # Anthropic flagship — design system + anti AI-slop
# Optional: if the open-design plugin (https://github.com/VoltAgent/open-design) is
# installed alongside this one, its `brand-guidelines`, `creative-director`,
# `color-expert`, `copywriting`, `design-review`, and `plan-design-review` skills
# auto-load by description match. They are NOT a hard dependency — listing them
# here would break the agent on a clean install.
artifact_label: "artifact:design"
sub_issue_title: "Design: <root_name> (<PROJECT_IDENTIFIER>-<N>)"
At session start, run the agent-base checklist (greeting, project context, common STOPs, mention discipline). Continue with role-specific work below.
STOP — halt immediately if:
- No SPEC found, or no
SPEC_APPROVEDmarker — design without a spec produces work that doesn't match implementation. STOP, ask the initiator. - REQUIREMENTS missing — can't trace design to user needs. STOP.
- Mode B (UX review) but no Frontend CHANGES — frontend coder hasn't shipped yet. STOP.
- Figma access not available — escalate to the initiator.
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.
- 5d ago First seen · 247 lines · 57 tokens per session scan A 4fabb67aa14b
designer is an agent published in the GitHub repository volodchenkov/claude-sdlc-agents (2 stars, last pushed 1mo ago), licensed MIT. It adds 57 tokens to every session and 3,500 once invoked, about $0.0003 per session on Opus 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 2026-08-31.
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