minimal-diff-skill

minimal-diff-skill is a cursor rule for Cursor from Oriolshhh/runware-image-mcp. It costs 10 tokens per session (340 once invoked), scanned A, original, MIT.

A rule pack for keeping code changes small, focused, and easy to review. It favors existing helpers and patterns and avoids unrelated refactoring or formatting changes.

In plain words
What is it for?
It is for implementing scoped fixes and features, reviewing diffs, preserving existing APIs, and checking that every changed line is necessary.
Why use it?
It reduces the chance that a simple task introduces unnecessary risk or makes it difficult to see what actually changed.

Cursor rule for Cursor

Written for Cursor: installed under .cursor/.

Good fit It is for implementing scoped fixes and features, reviewing diffs, preserving existing APIs, and checking that every changed line is necessary.

Compare 6 cursor rules from other repositories ↓
Install with agentmods
npx agentmods add rules/oriolshhh/runware-image-mcp/minimal-diff-skill
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/Oriolshhh/runware-image-mcp

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 minimal-diff-skill

README.md
[![agentmods](https://agentmods.dev/badge/rules/oriolshhh/runware-image-mcp/minimal-diff-skill/github.svg)](https://agentmods.dev/rules/oriolshhh/runware-image-mcp/minimal-diff-skill)
Your own site
<a href="https://agentmods.dev/rules/oriolshhh/runware-image-mcp/minimal-diff-skill"><img src="https://agentmods.dev/badge/rules/oriolshhh/runware-image-mcp/minimal-diff-skill/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 minimal-diff-skill

Your own site · 80×15
<a href="https://agentmods.dev/rules/oriolshhh/runware-image-mcp/minimal-diff-skill"><img src="https://agentmods.dev/badge/rules/oriolshhh/runware-image-mcp/minimal-diff-skill.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 10 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 340 The whole file, excluding the scripts and references it only reads on demand.
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 $0.00010 $0.00340
Opus 5 $0.00005 $0.00170
Sonnet 5 $0.00002 $0.00068
Haiku 4.5 $0.00001 $0.00034

Measured 5d ago against content hash ff9aec8f2020, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

minimal-diff-skill 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 5d 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/minimal-diff-skill.mdc · 43 lines

What it actually says

Skill: minimal-diff

Minimal Diff

Purpose

Deliver the required change with the smallest, most reviewable diff that fully satisfies the spec.

When to use it

  • Always, unless the spec explicitly calls for a large refactor.
  • Especially in shared, high-traffic, or legacy code.

Instructions

  1. Change only what the task requires.
  2. Reuse existing helpers and patterns before adding new ones.
  3. Preserve public APIs and behavior unless the spec requires otherwise.
  4. Keep unrelated refactors, renames, and formatting out of the diff.
  5. If a refactor is genuinely needed, propose it separately.

Output format

A focused diff plus a one-line rationale for any surprising change.

Anti-patterns

  • Drive-by refactors mixed into a feature change.
  • Reformatting files unrelated to the task.
  • Speculative abstractions for hypothetical future needs.

Verification checklist

  • Every changed line is required by the request, a necessary test, or generated output from an explicitly requested operation.
  • Public interfaces and unrelated formatting remain stable.
  • Any unavoidable broader change is isolated and explained before proceeding.

Apply context-discovery before broad scanning: use a supplied context capsule first; otherwise check context frontmatter freshness, read .agent/context/routing.md, load only relevant summaries, and verify critical claims against source.

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. 5d ago First seen · 43 lines · 10 tokens per session scan A ff9aec8f2020

Subscribe to this mod's changes

minimal-diff-skill is a cursor rule published in the GitHub repository Oriolshhh/runware-image-mcp (0 stars, last pushed 1mo ago), licensed MIT. It adds 10 tokens to every session and 340 once invoked, about $0.0001 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.