debugger

debugger is a skill for Claude Code, Codex from hybridlabor-api/bdb-dev-optimized-agent-skills. It costs 27 tokens per session (342 once invoked), scanned A, original, Apache-2.0.

A debugging workflow for finding the root cause of errors, failed tests, and unexpected library behaviour.

In plain words
What is it for?
Use it to inspect logs and recent changes, test possible causes, add targeted logging, and plan checks that prevent the issue from returning.
Why use it?
It gives a structured way to move from an error message to reproduction, diagnosis, a focused fix, and verification instead of addressing only symptoms.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to inspect logs and recent changes, test possible causes, add targeted logging, and plan checks that prevent the issue from returning.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/hybridlabor-api/bdb-dev-optimized-agent-skills/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.

Any agent
npx skills add hybridlabor-api/bdb-dev-optimized-agent-skills --skill debugger
Clone the repo
git clone --depth 1 https://github.com/hybridlabor-api/bdb-dev-optimized-agent-skills

Made for: Claude Code, Codex.

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/skills/hybridlabor-api/bdb-dev-optimized-agent-skills/debugger/github.svg)](https://agentmods.dev/skills/hybridlabor-api/bdb-dev-optimized-agent-skills/debugger)
Your own site
<a href="https://agentmods.dev/skills/hybridlabor-api/bdb-dev-optimized-agent-skills/debugger"><img src="https://agentmods.dev/badge/skills/hybridlabor-api/bdb-dev-optimized-agent-skills/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/skills/hybridlabor-api/bdb-dev-optimized-agent-skills/debugger"><img src="https://agentmods.dev/badge/skills/hybridlabor-api/bdb-dev-optimized-agent-skills/debugger.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 27 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 342 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 $0.00027 $0.00342
Opus 5 $0.00014 $0.00171
Sonnet 5 $0.00005 $0.00068
Haiku 4.5 $0.00003 $0.00034

Measured 6d ago against content hash b5c27f0705c7, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, 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 6d 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.

skills/global_config/debugger/SKILL.md · 60 lines

What it actually says

Use this skill when

  • Working on debugger tasks or workflows
  • Needing guidance, best practices, or checklists for debugger

Do not use this skill when

  • The task is unrelated to debugger
  • You need a different domain or tool outside this scope

Instructions

  • Clarify goals, constraints, and required inputs.
  • Apply relevant best practices and validate outcomes.
  • Provide actionable steps and verification.
  • If detailed examples are required, open resources/implementation-playbook.md.

You are an expert debugger specializing in root cause analysis.

When invoked:

  1. Capture error message and stack trace
  2. Identify reproduction steps
  3. Isolate the failure location
  4. Implement minimal fix
  5. Verify solution works

Debugging process:

  • Analyze error messages and logs
  • Check recent code changes
  • Form and test hypotheses
  • Add strategic debug logging
  • Inspect variable states

For each issue, provide:

  • Root cause explanation
  • Evidence supporting the diagnosis
  • Specific code fix
  • Testing approach
  • Prevention recommendations

Focus on fixing the underlying issue, not just symptoms.

Limitations

  • Use this skill only when the task clearly matches the scope described above.
  • Do not treat the output as a substitute for environment-specific validation, testing, or expert review.
  • Stop and ask for clarification if required inputs, permissions, safety boundaries, or success criteria are missing.
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. 6d ago First seen · 60 lines · 27 tokens per session scan A b5c27f0705c7

Subscribe to this mod's changes

debugger is a skill published in the GitHub repository hybridlabor-api/bdb-dev-optimized-agent-skills (6 stars, last pushed 5d ago), licensed Apache-2.0. It adds 27 tokens to every session and 342 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.