debugger

debugger is an agent for Claude Code, Cursor from Quinoto-Tech/QuinotoSpec. It costs 12 tokens per session (423 once invoked), scanned A, original, MIT.

A coding agent that investigates bugs by reproducing them, collecting evidence, and testing possible causes. It analyses logs, stack traces, crashes, memory leaks, concurrency problems, and failures that occur only under certain conditions.

In plain words
What is it for?
Use it for unclear test failures, production incidents, crashes, race conditions, resource exhaustion, and bugs that happen in CI or only in particular environments.
Why use it?
It helps identify the underlying cause instead of applying a quick fix that may leave the problem in place. Reproduction and instrumentation make intermittent failures easier to understand.

Agent for Claude CodeCursor

Written for Cursor and Claude Code: shipped in a Cursor plugin, but also a Claude Code subagent (agents/*.md). Also seen: mentions subagents; mentions OpenCode.

Part of the quinotospec plugin — 90 skills, 9 agents, 1 hook shipped together

Good fit Use it for unclear test failures, production incidents, crashes, race conditions, resource exhaustion, and bugs that happen in CI or only in particular environments.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/quinoto-tech/quinotospec/debugger
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/Quinoto-Tech/QuinotoSpec

Made for: Claude Code, Cursor.

Or install quinotospec, the plugin that ships this one along with the rest of its 90 skills, 9 agents, 1 hook.

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 debugger

README.md
[![agentmods](https://agentmods.dev/badge/agents/quinoto-tech/quinotospec/debugger/github.svg)](https://agentmods.dev/agents/quinoto-tech/quinotospec/debugger)
Your own site
<a href="https://agentmods.dev/agents/quinoto-tech/quinotospec/debugger"><img src="https://agentmods.dev/badge/agents/quinoto-tech/quinotospec/debugger/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 debugger

Your own site · 80×15
<a href="https://agentmods.dev/agents/quinoto-tech/quinotospec/debugger"><img src="https://agentmods.dev/badge/agents/quinoto-tech/quinotospec/debugger.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 12 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 423 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 $0.00012 $0.00423
Opus 5.5 $0.00005 $0.00169
Sonnet 5.5 $0.00002 $0.00085
Haiku 4.5 $0.00001 $0.00042

Measured 9d ago against content hash a3042fc1f2eb, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

debugger 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 9d 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.

agent-dist/agents/debugger.md · 57 lines

What it actually says

Agent: Debugger

Personality

Detective tecnico. No asume nada: reproduce, instrumenta, confirma. Sigue el metodo cientifico: hipotesis -> experimento -> conclusion. No aplica hotfixes sin entender la causa raiz. Sabe que el bug mas peligroso es el que no puedes reproducir.

Capabilities

  • Reproduccion sistematica de bugs
  • Analisis de logs y stack traces
  • Root cause analysis (5 Whys, Fishbone diagrams)
  • Debugging de race conditions y problemas de concurrencia
  • Analisis de memory leaks y resource exhaustion
  • Estrategias de instrumentacion y observabilidad

When to Use

  • Cuando un test falla y no es obvio por que
  • Para investigar incidentes de produccion
  • Cuando un bug solo aparece bajo ciertas condiciones
  • Para analizar crashes y errores intermitentes

Invocation

@quinotospec.apply (cuando hay bugs en criterios de aceptacion)
@quinotospec.review (cuando hay regresiones)

Example Session

User: El test de integracion falla solo en CI, no localmente
Agent: [Reproduce: ejecuta en CI con logs verbose]
       [Analiza: diferencia de timezone entre local y CI]
       [Hipotesis: test usa timestamps sin normalizar]
       [Fix: normaliza a UTC, test pasa en ambos entornos]
       [Documenta: causa raiz y prevencion]

Integration

  • Usa 01-stack-profile.md para conocer herramientas de debug del stack
  • Lee 06-devops-ci-security.md para entender diferencias entre entornos
  • Documenta root cause en el changelog para referencia futura
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. 9d ago Changed · +2 lines · +10 tokens per session a3042fc1f2eb
  2. 2mo ago First seen · 55 lines · 2 tokens per session scan A ebff571fa192

Subscribe to this mod's changes

debugger is an agent published in the GitHub repository Quinoto-Tech/QuinotoSpec (21 stars, last pushed yesterday), licensed MIT. It adds 12 tokens to every session and 423 once invoked, about $0.0000 per session on Opus 5.5. 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.

Related

Other agents, from other repositories

review-obsidian-guidelines

Reviews a diff of obsidian-reminder against Obsidian's community plugin guidelines and directory review rules that ESLint does not already enforce — manifest metadata, command naming, settings UI, styling, mobile compatibility, vault access APIs. Used by the pr-review workflow; read-only.

uphy/obsidian-reminder · 63 tokens

debugger

Diagnoses and fixes failed modules using root-cause analysis, not guessing.

TT-Wang/forge · 17 tokens

debugger

Investigate errors systematically to find root cause before attempting fixes. Gathers evidence, analyzes patterns, and forms testable hypotheses.

bostonaholic/rpikit · 28 tokens

loom-advisor

Read-only advisory agent for debugging and repeated failures. Spawned instead of a blind retry when an implementer has failed twice on the same task, or a bug resists straightforward diagnosis. Returns a root-cause diagnosis plus one concrete next step.

cosmix/loom · 53 tokens

evolve-retrospective

Failure post-mortem agent for the Evolve Loop. Fires only on Auditor FAIL or WARN verdicts. Reads cycle artifacts and produces a structured retrospective + failure-lesson YAML files. READ-ONLY outside the lessons directory.

mickeyyaya/evolve-loop · 51 tokens

type-reconstructor

Dedicated struct/class reconstruction from IDA Pro decompiled binaries. Scans every function for memory access patterns, merges evidence across the module, resolves vtable and COM interface layouts, and generates compilable C++ header files with per-field confidence annotations. Use for full-module or single-class…

marcosd4h/DeepExtractRuntime · 63 tokens