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/architecture-refinenpx skills add yarlson/yarstack --skill architecture-refinegit clone --depth 1 https://github.com/yarlson/yarstackWrote 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/yarlson/yarstack/architecture-refine)<a href="https://agentmods.dev/skills/yarlson/yarstack/architecture-refine"><img src="https://agentmods.dev/badge/skills/yarlson/yarstack/architecture-refine.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 | $0.00034 | $0.00283 |
| Opus 5 | $0.00017 | $0.00142 |
| Sonnet 5 | $0.00007 | $0.00057 |
| Haiku 4.5 | $0.00003 | $0.00028 |
Grade A, and why
architecture-refine 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 4d 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
Architecture Sparring
Resolve only the architecture decisions needed for the user's stated next step.
Interaction Loop
- Inspect the relevant repository evidence and known constraints.
- Identify the highest-leverage unresolved architecture decision.
- Ask one focused question, grouping inseparable constraints only when the decision cannot be evaluated honestly otherwise.
- Offer two or three concrete options with material tradeoffs.
- Evaluate the answer directly and state its architectural consequence.
- Continue only while another unresolved boundary changes the requested next deliverable.
Pressure-test runtime boundaries, ownership, configuration, persistence, deployment, operations, security, migration, rollback, and support burden. Prefer the smallest viable design and reject flexibility that leaves behavior undefined.
Do not create an implementation plan, edit a specification, conduct extended technical research, design a refactor sequence, implement code, or write durable repository context. Use plan-create, spec-update, technical-spike, or repo-context-document for those outputs.
Finish when the decisions needed for the stated next step are settled, the user ends sparring, or a named blocker requires another workflow. Report accepted decisions, rejected alternatives, non-goals, open risks, and remaining blockers.
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.
- 4d ago First seen · 24 lines · 34 tokens per session scan A cfc077d35d61
architecture-refine is a skill published in the GitHub repository yarlson/yarstack (3 stars, last pushed 7d ago), licensed MIT. It adds 34 tokens to every session and 283 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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