with-cursor-insight

A guide for using Cursor, an AI-assisted code editor, and its advanced tools. It distinguishes features that have been confirmed from capabilities that are only described as possibilities.

In plain words
What is it for?
Investigating code structure, handling connected parts of a codebase, and using Cursor's AI tools for specialized development work.
Why use it?
Complex codebases may require more than ordinary editor searches. The guide helps choose relevant Cursor features while avoiding reliance on unverified behavior.

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/zackiles/cursor-config/with-cursor-insight
Clone the repo
git clone --depth 1 https://github.com/zackiles/cursor-config

Made for: Cursor.

Per session 0 Nothing until a file matches its globs; then the whole rule loads.
When invoked 12,482 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. 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 $0.00000 $0.12482
Opus 5 $0.00000 $0.06241
Sonnet 5 $0.00000 $0.02496
Haiku 4.5 $0.00000 $0.01248

Measured 3d ago against content hash 16a439bbb4e3, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

with-cursor-insight scanned grade A with 1 finding 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

command: "curl -s https://api.example.com/docs | jq '.endpoints[]'",
.cursor/rules/global/with-cursor-insight.mdc · 1,428 lines

How it starts

The opening of the file, as written. The whole thing — 1,428 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Cursor Insight: Use Advanced Tools & Capabilities

SUBTASK: Use this guide to help solve or answer the current query, user message, or task.

Overview

This rule provides a comprehensive guide to Cursor's advanced features, APIs, tools, and programmatic capabilities for solving complex problems. Use it to leverage Cursor's full potential when standard approaches are insufficient.

When to Use

  • When you need to deeply understand code structure beyond simple searches
  • When working with complex, interconnected codebases
  • When you need specialized analysis tools for performance optimization
  • When standard IDE features aren't powerful enough for your task
  • When you need to leverage Cursor's AI capabilities for specialized tasks

How to Use

  • Accuracy Awareness: This document contains both verified (✅) and theoretical (❌) capabilities. Verified features have been directly observed and tested, while theoretical ones represent potential capabilities that may not be implemented exactly as described.
  • Start with Confirmed Tools: Begin by using the confirmed tools marked with ✅ in the reference tables. These provide a reliable foundation before exploring more experimental features.
  • Progressive Experimentation: Test theoretical capabilities in non-critical contexts first. Start small, verify behavior, then scale to more complex use cases.
  • Combine Standard + Advanced: Most effective solutions combine standard Cursor functionality with these advanced techniques. Don't overlook built-in features in favor of complex approaches.
  • Adapt Example Code: Code samples are conceptual starting points that likely need adaptation for your specific environment and requirements.
  • Error Isolation: When errors occur, isolate whether they stem from Cursor limitations, environment issues, or implementation mistakes by testing minimal reproducible examples.
  • Verify API Changes: The Cursor API may evolve. Before building critical infrastructure, verify endpoint availability and behavior with simple tests.
  • Documentation Cross-Reference: Cross-reference this guide with official Cursor documentation for the most authoritative and up-to-date information.
  • Security Considerations: Be cautious with programmatic capabilities that access sensitive data or execute code. Validate inputs and limit permissions appropriately.
  • Contribution: Consider contributing working examples or corrections back to this guide to improve its accuracy and usefulness.

Read the full file on GitHub · 1,428 lines

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 · 1,428 lines · 0 tokens per session scan A 16a439bbb4e3

Subscribe to this mod's changes

with-cursor-insight is a cursor rule published in the GitHub repository zackiles/cursor-config (17 stars, last pushed 1y ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 12,482 tokens. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.