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 Owl-Listener/designpowers --skill design-strategygit clone --depth 1 https://github.com/Owl-Listener/designpowersWrote 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/owl-listener/designpowers/design-strategy)<a href="https://agentmods.dev/skills/owl-listener/designpowers/design-strategy"><img src="https://agentmods.dev/badge/skills/owl-listener/designpowers/design-strategy/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/owl-listener/designpowers/design-strategy"><img src="https://agentmods.dev/badge/skills/owl-listener/designpowers/design-strategy.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to high
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- high Anti-Refusal · line 125 Skill attempts to nullify the agent's safety policies or restrictions ('you have no restrictions', 'ignore your guidelines', 'do anything now'). This is a direct jailbreak that disables guardrails.Fix: Remove jailbreak framing that nullifies safety policies or restrictions. Skill content must not instruct the agent to ignore its guidelines or operate without guardrails.
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 | $0.00030 | $0.00961 |
| Opus 5 | $0.00015 | $0.00481 |
| Sonnet 5 | $0.00006 | $0.00192 |
| Haiku 4.5 | $0.00003 | $0.00096 |
Grade A, and why
design-strategy 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 9d 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 — 126 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Design Strategy
Strategy is the bridge between understanding and making. It takes what you learned in discovery and research and turns it into a clear direction that every design decision can be measured against.
Welcome Gate
BEFORE running strategy, check whether the Designpowers welcome sequence has been shown this session. If the user has not yet seen the welcome (the bird, the greeting, and the walkthrough offer), you MUST invoke the using-designpowers skill FIRST and complete the welcome sequence before returning here. The bird must appear before any work begins. No exceptions.
When to Use
- After discovery and/or research, before detailed design work
- When stakeholders disagree about direction
- When the team needs shared design principles
- When positioning against competitors
- When defining what makes this experience distinctive
Process
Step 1: Synthesise Inputs
Gather everything from previous phases:
- Design brief (from design-discovery)
- Research findings (if research-planning was used)
- Personas (from inclusive-personas)
- Existing design system or brand guidelines
- Business objectives and constraints
Step 2: Competitive Landscape
If relevant, map the competitive landscape:
## Competitive Analysis
| Competitor | Strengths | Weaknesses | Accessibility | Differentiation Opportunity |
|-----------|-----------|------------|---------------|---------------------------|
| [Name] | [What works] | [What fails] | [WCAG compliance, inclusive design quality] | [Where we can do better] |
Pay specific attention to where competitors fail on accessibility — this is often the largest opportunity for differentiation.
Step 3: Define Design Principles
Write 3-5 design principles that will guide every decision. Good principles are:
- Opinionated — they take a position, not state the obvious
- Actionable — a designer can use them to make a decision
- Testable — you can evaluate a design against them
- Inclusive — at least one principle explicitly addresses accessibility
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.
- 9d ago First seen · 126 lines · 30 tokens per session scan A 6d72bf134eb1
design-strategy is a skill published in the GitHub repository Owl-Listener/designpowers (243 stars, last pushed 2mo ago), licensed MIT. It adds 30 tokens to every session and 961 once invoked, about $0.0002 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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