MCPInstall

debug

Full debugging workflow — reproduce the bug with a focused check, perform root cause analysis, then implement a minimal fix.

Installs
829
Last 24h
—
Trending rank
—
Security
Not audited

Install

Works with every agent the skills CLI supports.

npx skills add https://github.com/cyrusagents/cyrus --skill debug
  1. 01

    Install

    Run the command in your project. The CLI asks which agents to install for.

  2. 02

    Describe the task

    Ask your agent for something this skill covers. It loads debug automatically when relevant.

  3. 03

    Review the result

    The agent follows the SKILL.md steps, scripts and references bundled with the skill.

SKILL.md

The instructions your agent reads when the skill is triggered.

Debug

Debug a reported issue using a structured reproduction-then-fix approach.

Phase 1: Reproduction & Root Cause Analysis

  1. Investigate — Analyze the bug report for key symptoms and error messages
  2. Trace — Search the codebase for error occurrence patterns, trace from symptom to source
  3. Root cause — Identify the root cause through data flow analysis and edge case checking
  4. Reproduce — Reproduce the exact error with the smallest useful check (a command, dry run, manual flow, or automated test)
  5. Document — Clearly document the root cause and reproduction steps

Phase 2: Fix Implementation

  1. Plan — Analyze the optimal fix approach based on root cause, check for similar fixes in the codebase
  2. Implement — Make the minimal, targeted fix that addresses the root cause
  3. Verify — Repeat the reproduction to confirm the fix and run relevant existing checks. Follow verify-and-ship for proportionate scope; add a regression test only when the concrete failure warrants durable coverage

Principles

  • Minimal changes — Fix the bug, nothing more
  • Targeted — Only touch affected code paths
  • Verified — Confirm the reproduction succeeds after the fix and preserve relevant existing safeguards; a new test file is not mandatory
  • No unrelated improvements — Stay focused on the specific bug

FAQ

What does the debug skill do?

Full debugging workflow — reproduce the bug with a focused check, perform root cause analysis, then implement a minimal fix.

How do I install debug?

Run npx skills add https://github.com/cyrusagents/cyrus --skill debug in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/debug/ (personal) or .claude/skills/debug/ (project).

Which AI agents can use debug?

Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.

Is debug safe to install?

No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.

Who maintains debug?

It is published by cyrusagents in cyrusagents/cyrus. It has 829 recorded installs.

More from cyrusagents/cyrus

View all →

cyrus-setup

cyrusagents/cyrus

Set up Cyrus end-to-end — install prerequisites, configure authentication, create integrations (Linear, GitHub, Slack), add repositories, and launch. Run this once to get Cyrus running as a background agent.

cyrus-setup-linear

cyrusagents/cyrus

Create a Linear OAuth application and configure Cyrus to use it — supports agent-browser automation or guided manual setup.

cyrus-setup-claude-auth

cyrusagents/cyrus

Configure Claude Code authentication for Cyrus — API key, OAuth token, or third-party provider.

Backend & APIs1.1K installs

cyrus-setup-github

cyrusagents/cyrus

Configure GitHub for Cyrus — gh CLI login and git config for PRs, with optional webhook setup to enable @mention responses in PR comments, automated rebases and merges, and auto-fixing based on CI failures (coming soon).

cyrus-setup-prerequisites

cyrusagents/cyrus

Check and install prerequisites for Cyrus — Node.js, jq, gh CLI, and the cyrus-ai npm package.

Backend & APIs1K installs

cyrus-setup-endpoint

cyrusagents/cyrus

Configure the public webhook endpoint for Cyrus — ngrok, Cloudflare Tunnel, or custom URL.

Backend & APIs1K installs

Popular code quality & workflow skills

View category →

grill-me

mattpocock/skills

A relentless interview to sharpen a plan or design.

Scan a codebase for deepening opportunities, present them as a visual HTML report, then grill through whichever one you pick.

handoff

mattpocock/skills

Compact the current conversation into a handoff document for another agent to pick up.

domain-modeling

mattpocock/skills

Build and sharpen a project's domain model. Use when discussing codebase terminology, writing or editing a GLOSSARY.md, or recording or editing an ADR.

codebase-design

mattpocock/skills

Shared vocabulary for designing deep modules. Use when the user wants to design or improve a module's interface, find deepening opportunities, decide where a seam goes, make code more testable or AI-navigable, or when another skill needs the deep-module vocabulary.

diagnosing-bugs

mattpocock/skills

Diagnosis loop for hard bugs and performance regressions. Use when the user says "diagnose"/"debug this", or reports something broken/throwing/failing/slow.