debugging_strategies

A set of guidance for finding and fixing software problems in a structured way.

In plain words
What is it for?
It is for tracing errors, reproducing bugs, testing fixes, and explaining debugging steps.
Why use it?
It helps avoid random changes by giving the coding agent an approach to investigating bugs and checking possible causes.

Cursor rule

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/peternixey/cursorrules/debugging_strategies
Clone the repo
git clone --depth 1 https://github.com/peternixey/cursorrules
Per session 5 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 563 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. Scan, not verified.
Origin unknown 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 $0.00005 $0.00563
Opus 5 $0.00003 $0.00282
Sonnet 5 $0.00001 $0.00113
Haiku 4.5 $0.00001 $0.00056

Measured 2d ago against content hash 65104478d5bf, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

debugging_strategies 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 2d 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.

curl -v http://localhost:3000/ || { echo "localhost failed"; error=1; }
debugging_strategies.mdc · 78 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 2d ago First seen · 78 lines · 5 tokens per session scan A 65104478d5bf

Subscribe to this mod's changes

debugging_strategies is a cursor rule published in the GitHub repository peternixey/cursorrules (13 stars, last pushed 1y ago), with no licence file. It adds 5 tokens to every session and 563 once invoked, about $0.0000 per session on Opus 5. 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.