Borrowing it
Nothing to install: this file belongs to vantasnerdan/substrate-framework. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/vantasnerdan/substrate-framework/main/.agents/skills/physics-discovery/SKILL.mdgit clone --depth 1 https://github.com/vantasnerdan/substrate-frameworkWrote 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/vantasnerdan/substrate-framework/physics-discovery)<a href="https://agentmods.dev/skills/vantasnerdan/substrate-framework/physics-discovery"><img src="https://agentmods.dev/badge/skills/vantasnerdan/substrate-framework/physics-discovery/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/vantasnerdan/substrate-framework/physics-discovery"><img src="https://agentmods.dev/badge/skills/vantasnerdan/substrate-framework/physics-discovery.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 | $0.00066 | $0.01522 |
| Opus 5.5 | $0.00026 | $0.00609 |
| Sonnet 5.5 | $0.00013 | $0.00304 |
| Haiku 4.5 | $0.00007 | $0.00152 |
Grade A, and why
physics-discovery 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 1mo 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 — 125 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Physics Discovery
Earn a useful change in how the problem is seen, then turn it into a construction that can be tested. Apply AGENTS.md for authority, user scope, continuation and promotion; physics-erdos-loop owns claim execution. This skill supplies ideas and their first informative checks. Its methods are a menu, not a quota or a new acceptance checklist.
Focus the question
Use the existing proposal/research contract as the home for a compact discovery brief. Refresh it when the question or explanatory obstacle changes:
- The physical phenomenon or exact theorem sought, and why its answer matters.
- Sourced equations, domains, symmetries and known constraints. Separate the user's invariants, accepted premises and optional ansatz/representation choices.
- The unresolved tension: which two apparently reasonable requirements resist coexistence, or which implication is still missing?
- A useful nearby construction and, when available, a structural analogue from another area; identify precisely what transfers and what remains unmatched.
- The next calculation that could distinguish mechanisms or reveal structure.
Keep mandatory instructions and accepted authority available. Focus the working brief on this problem; consult specialized verification and delivery details when those decisions arise. Source facts remain traceable, earlier exposure is declared, and the parent campaign retains its complete durable record.
Retrieve relationships and transform the problem
Search by mathematical structure as well as physical names: a constraint and its generator, a local-to-global obstruction, a soft direction coupled to a stiff core, a conserved quantity under reduction. Reuse and new generation can proceed together; a nearest accepted example supplies ingredients, not a prescribed form. Verify a retrieved construction at source before relying on it. Distinguish a recalled analogy worth investigating from an established imported result.
Choose transformations that address the actual obstacle:
What ships with it
1 file 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.
- 1mo ago First seen · 125 lines · 66 tokens per session scan A 99fde110f146
physics-discovery is a skill published in the GitHub repository vantasnerdan/substrate-framework (5 stars, last pushed 11d ago), licensed Apache-2.0. It adds 66 tokens to every session and 1,522 once invoked, about $0.0003 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 2026-09-10.
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