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 skills/yarlson/yarstack/alternatives-explorenpx skills add yarlson/yarstack --skill alternatives-exploregit clone --depth 1 https://github.com/yarlson/yarstackWhat 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 | $0.00047 | $0.00254 |
| Opus 5 | $0.00023 | $0.00127 |
| Sonnet 5 | $0.00009 | $0.00051 |
| Haiku 4.5 | $0.00005 | $0.00025 |
Grade A, and why
alternatives-explore 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.
What it actually says
Alternative Ideation
Recommend one useful abstraction shift and a bounded experiment without turning ideation into architecture or implementation.
Workflow
- State the core problem, current assumptions, constraints, and outcome that must remain valuable.
- Generate several materially different bets by changing ownership, workflow, abstraction, distribution, architecture, or a supposedly necessary component.
- Evaluate each bet for user value, distinctness, feasibility, reversibility, and testability.
- Select the strongest bet and explain which default assumption it rejects, why that matters, and where it could fail.
- Define the smallest experiment with bounded cost and a falsifiable success signal.
Do not produce cosmetic variants, settle final architecture, research unresolved technical facts, write an implementation plan, or implement the experiment. Use architecture-refine for architectural convergence, technical-spike for blocking technical evidence, and plan-create for implementation planning.
Finish after recommending one experiment and its success signal. A recommendation does not authorize implementation.
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.
- 2d ago First seen · 21 lines · 47 tokens per session scan A 5d9f13274d4d
alternatives-explore is a skill published in the GitHub repository yarlson/yarstack (3 stars, last pushed 5d ago), licensed MIT. It adds 47 tokens to every session and 254 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 2026-08-31.
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