if-you-think-verus-cant

if-you-think-verus-cant is a cursor rule for Cursor from briangmilnes/APAS-VERUS. It costs 236 tokens per session, scanned A, original, MIT.

A rule for testing suspected Verus limitations with existing experiments before concluding that a feature cannot work.

In plain words
What is it for?
Use it when a Rust or Verus pattern fails or seems unsupported, by searching experiment files or proposing a test case.
Why use it?
It replaces assumptions about the verifier with evidence from the codebase or a focused new experiment.

Cursor rule for Cursor

Written for Cursor: installed under .cursor/.

Good fit Use it when a Rust or Verus pattern fails or seems unsupported, by searching experiment files or proposing a test case.

Compare 6 cursor rules from other repositories ↓
Install with agentmods
npx agentmods add rules/briangmilnes/apas-verus/if-you-think-verus-cant
Install

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.

Clone the repo
git clone --depth 1 https://github.com/briangmilnes/APAS-VERUS

Made for: Cursor.

Wrote 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.

agentmods badge for if-you-think-verus-cant

README.md
[![agentmods](https://agentmods.dev/badge/rules/briangmilnes/apas-verus/if-you-think-verus-cant/github.svg)](https://agentmods.dev/rules/briangmilnes/apas-verus/if-you-think-verus-cant)
Your own site
<a href="https://agentmods.dev/rules/briangmilnes/apas-verus/if-you-think-verus-cant"><img src="https://agentmods.dev/badge/rules/briangmilnes/apas-verus/if-you-think-verus-cant/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.

agentmods 80×15 button for if-you-think-verus-cant

Your own site · 80×15
<a href="https://agentmods.dev/rules/briangmilnes/apas-verus/if-you-think-verus-cant"><img src="https://agentmods.dev/badge/rules/briangmilnes/apas-verus/if-you-think-verus-cant.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 236 This file is loaded in full into every session.
When invoked 236 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00236 $0.00236
Opus 5 $0.00118 $0.00118
Sonnet 5 $0.00047 $0.00047
Haiku 4.5 $0.00024 $0.00024

Measured 8d ago against content hash 2b4019e2a229, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

if-you-think-verus-cant 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 8d 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.

.cursor/rules/verus/if-you-think-verus-cant.mdc · 26 lines

What it actually says

If You Think Verus Can't Do X

When you believe Verus cannot do something (e.g., "Verus doesn't support X", "This pattern won't verify"):

  1. Ask the user if they want you to search src/experiments/ for an existing test of this capability

  2. If searching: Look for existing experiment files that test this pattern

    # First, use veracity-search on the codebase
    veracity-search -C ~/projects/APAS-VERUS --no-vstd 'fn _ types X'
    
    # Then grep for specific patterns
    ls src/experiments/
    grep -r "pattern" src/experiments/
    
  3. If not found: Propose a new experiment file at src/experiments/X.rs to prove or disprove the case

Do not assume Verus can't do something without evidence. Many "impossible" things turn out to be possible with the right approach.

Changes

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.

  1. 8d ago First seen · 26 lines · 236 tokens per session scan A 2b4019e2a229

Subscribe to this mod's changes

if-you-think-verus-cant is a cursor rule published in the GitHub repository briangmilnes/APAS-VERUS (10 stars, last pushed 1mo ago), licensed MIT. It adds 236 tokens to every session, about $0.0012 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 2026-09-03.