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 theagenticguy/erpaval --skill product-design-sharedgit clone --depth 1 https://github.com/theagenticguy/erpavalWrote 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/theagenticguy/erpaval/product-design-shared)<a href="https://agentmods.dev/skills/theagenticguy/erpaval/product-design-shared"><img src="https://agentmods.dev/badge/skills/theagenticguy/erpaval/product-design-shared/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/theagenticguy/erpaval/product-design-shared"><img src="https://agentmods.dev/badge/skills/theagenticguy/erpaval/product-design-shared.svg" alt="Reviewed on agentmods" width="80" 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 | $0.00135 | $0.00498 |
| Opus 5.5 | $0.00054 | $0.00199 |
| Sonnet 5.5 | $0.00027 | $0.00100 |
| Haiku 4.5 | $0.00014 | $0.00050 |
Grade A, and why
product-design-shared 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 2mo 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.
What it actually says
product-design-shared — references-only pool
This skill exists so the four product-design skills above can share one canonical copy of each framework reference. It has no SKILL behavior: no role prompts, no orchestrator, no assets, no slash command.
What lives here
| File | What it covers |
|---|---|
references/pyramid-principle.md |
Minto Pyramid composition discipline |
references/working-backwards.md |
Amazon Working Backwards 5-stage flow + PR/FAQ |
references/double-diamond.md |
Discover / Define / Develop / Deliver, divergent-convergent shape |
references/research-design.md |
Hypothesis · null · MECE questions · methods · findings |
references/methodology-selection.md |
Decision tree for which framework to reach for |
Who consumes this skill
product-discovery— for PRD drafting, HMW framing, EARS specs, Jobs-to-be-Doneproduct-strategy— for Rumelt kernel, Wardley maps, Minto-structured argumentworking-backwards— for the 5-stage flow (Listen, Define, Invent, Refine, Test)customer-research— for hypothesis-driven research design
If you're trying to "use" product-design-shared, you probably want one of
those four skills instead. Pick from references/methodology-selection.md.
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.
- 2mo ago First seen · 41 lines · 135 tokens per session scan A 1424c12c1508
product-design-shared is a skill published in the GitHub repository theagenticguy/erpaval (28 stars, last pushed 5mo ago), licensed MIT. It adds 135 tokens to every session and 498 once invoked, about $0.0005 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.
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