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 skills add curiositech/some_claude_skills --skill design-justicegit clone --depth 1 https://github.com/curiositech/some_claude_skillsWrote 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/skills/curiositech/some_claude_skills/design-justice)<a href="https://agentmods.dev/skills/curiositech/some_claude_skills/design-justice"><img src="https://agentmods.dev/badge/skills/curiositech/some_claude_skills/design-justice/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.
<a href="https://agentmods.dev/skills/curiositech/some_claude_skills/design-justice"><img src="https://agentmods.dev/badge/skills/curiositech/some_claude_skills/design-justice.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00080 | $0.02778 |
| Opus 5 | $0.00040 | $0.01389 |
| Sonnet 5 | $0.00016 | $0.00556 |
| Haiku 4.5 | $0.00008 | $0.00278 |
Grade A, and why
design-justice 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 11d 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 — 395 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Design Justice: Equity-Centered Digital Design
Design for the margins, benefit the center. If it works for someone with no stable phone, unstable housing, trauma history, and low digital literacy → it works better for everyone.
Philosophy
Design Justice (Sasha Costanza-Chock) + Trauma-Informed Design + Digital Equity Design
Core principle: The people most impacted by design decisions should be centered in the design process, not treated as edge cases.
When to Use
✅ Use for:
- Apps serving recovery/reentry populations
- Government/civic tech applications
- Healthcare portals for vulnerable populations
- Housing/benefits applications
- Legal aid and court self-help tools
- Nonprofit service delivery platforms
- Any app used on shared/public devices
❌ NOT for:
- Enterprise B2B SaaS (different constraints)
- Marketing funnel optimization
- Gamification/engagement maximization
- Social media features
- General "make it pretty" UX requests
Decision Tree: Which Pattern Applies?
User has unstable phone number?
├── YES → See: Authentication Without Stable Phones
└── NO → Standard auth OK
User may lose internet mid-task?
├── YES → See: Offline-First Design
└── NO → Standard web patterns OK
User may be on shared/public device?
├── YES → See: Shared Device Privacy
└── NO → Standard session management OK
Form is complex or emotionally difficult?
├── YES → See: Trauma-Informed Forms
└── NO → Standard form patterns OK
User has history of system trauma?
├── YES → Apply ALL trauma-informed patterns
└── UNKNOWN → Assume YES for civic/legal/benefits apps
Pattern 1: Authentication Without Stable Phones
Anti-Pattern: Phone-First Auth
Novice thinking: "Everyone has a phone, SMS 2FA is secure"
Reality:
- 25% of formerly incarcerated people lack stable phone access
- Phone numbers change frequently during housing instability
- Prepaid phones get disconnected for non-payment
- SMS 2FA locks people out of critical services
What ships with it
5 files 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.
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.
- 11d ago First seen · 395 lines · 80 tokens per session scan A 9de89e91a02d
design-justice is a skill published in the GitHub repository curiositech/some_claude_skills (219 stars, last pushed 5d ago), licensed MIT. It adds 80 tokens to every session and 2,778 once invoked, about $0.0004 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 2026-08-30.
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