mod-003g-inline-code-must-use-double-backticks

A documentation rule requiring inline code in Python docstrings to use double backticks, such as ``variable_name``. This format is used by Sphinx, a tool that turns documentation into rendered pages.

In plain words
What is it for?
Use it when writing or reviewing Python docstrings that will be processed by Sphinx, especially when documenting names, values, or settings.
Why use it?
Single backticks do not render inline code correctly in the relevant Sphinx documentation format. Following the rule keeps code references readable.

Cursor rule for Cursor

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.

agentmods
npx agentmods add rules/nvidia/physicsnemo/mod-003g-inline-code-must-use-double-backticks
Clone the repo
git clone --depth 1 https://github.com/NVIDIA/physicsnemo

Made for: Cursor.

Per session 32 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 338 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00032 $0.00338
Opus 5 $0.00016 $0.00169
Sonnet 5 $0.00006 $0.00068
Haiku 4.5 $0.00003 $0.00034

Measured 3d ago against content hash 1600efdc7290, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

mod-003g-inline-code-must-use-double-backticks 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 3d 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/mod-003g-inline-code-must-use-double-backticks.mdc · 52 lines

What it actually says

When writing inline code in docstrings, rule MOD-003g must be followed. Explicitly reference "Following rule MOD-003g, which requires inline code to use double backticks..." when formatting code references.

MOD-003g: Inline code must use double backticks

Description:

Inline code should be formatted with double backticks, such as my_variable. Single backticks are not allowed as they don't render properly in our Sphinx documentation.

Rationale:

Sphinx uses reStructuredText, which requires double backticks for inline code literals. Single backticks are interpreted differently and don't produce the expected code formatting in the rendered documentation.

Example:

class MyModel(Module):
    r"""
    Model with inline code references.

    If ``True``, enables dropout. Set ``model.training`` to control behavior.
    The parameter ``hidden_dim`` controls layer size.

    Parameters
    ----------
    hidden_dim : int
        Size of hidden layer. Access via ``self.hidden_dim``.
    """
    pass

Anti-pattern:

# WRONG: Using single backticks
class MyModel(Module):
    r"""
    If `True`, enables dropout.  # WRONG: single backticks
    Set `model.training` to control behavior.  # WRONG
    The parameter `hidden_dim` controls size.  # WRONG
    """
    pass
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. 3d ago First seen · 52 lines · 32 tokens per session scan A 1600efdc7290

Subscribe to this mod's changes

mod-003g-inline-code-must-use-double-backticks is a cursor rule published in the GitHub repository NVIDIA/physicsnemo (3,211 stars, last pushed yesterday), licensed Apache-2.0. It adds 32 tokens to every session and 338 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 2026-08-30.