debug

A debugging agent with instructions for investigating and resolving programming problems, including making functions pure again. Lambda calculus is a mathematical way to reason about functions and computation.

In plain words
What is it for?
Use it to investigate bugs, guide a resolution, make functions behave more predictably, and perform a final quality check.
Why use it?
It gives debugging a staged process: investigate the problem, resolve it, and check the result for future maintenance. The description frames this process around lambda-calculus concepts.

Agent

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 agents/lukefrankio/lukescopilotinstructions/debug
Clone the repo
git clone --depth 1 https://github.com/LukeFrankio/LukesCopilotInstructions
Per session 11 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,083 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 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 $0.00011 $0.01083
Opus 5 $0.00005 $0.00541
Sonnet 5 $0.00002 $0.00217
Haiku 4.5 $0.00001 $0.00108

Measured yesterday against content hash 175eea4b9ea1, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade B, and why

debug scanned grade B 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 yesterday.

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.

Strips warnings and disclaimersmediumAnti-refusal

Omitting safety caveats hides risk from the user and is a common jailbreak preamble.

remember: if it compiles without warnings, the compiler is your friend. if it doesn't, the compiler is STILL your friend (just a brutally honest one)
.github/agents/debug.agent.md · 105 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. yesterday First seen · 105 lines · 11 tokens per session scan B 175eea4b9ea1

Subscribe to this mod's changes

debug is an agent published in the GitHub repository LukeFrankio/LukesCopilotInstructions (1 stars, last pushed 3mo ago), with no licence file. It adds 11 tokens to every session and 1,083 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it B with 1 finding (strips warnings and disclaimers). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.