Claude Skills · Coding

Systematic Debugging

JKHeadley/instar

Structured 4-phase debugging methodology that prevents blind probing and guesswork. Forces root cause identification before any fix attempt. Use when encountering bugs, errors, unexpected behavior, test failures, or when something "just stopped working." Trigger words: debug, bug, error, broken, not working, fix this, something's wrong, investigate, root cause, why is this failing, trace the issue.

★ 77 MIT Synced 2 hours ago View SKILL.md

At a glance

Coding Manual install Node.js Actively maintained MIT

This skill is for Coding and helps you debug a failing test, identify the root cause of an error, and trace unexpected behavior in code.

Install git clone --depth 1 https://github.com/JKHeadley/instar cp -r instar/skills/systematic-debugging ~/.claude/skills/systematic-debugging
Can use Not declared by the author

Setup, runtime and requirements describe JKHeadley/instar, the repo this skill ships in.

debuggingtroubleshootingRoot Cause Analysistestingmethodology

Also in JKHeadley/instar

View the repo
Agent Identity Productivity

Set up persistent agent identity files (AGENT.md, USER.md, MEMORY.md) and teach the agent to read them at every session start. Works in any...

Agent Memory Productivity

Teach cross-session memory patterns using MEMORY.md — what to save, how to organize it, how to maintain it over time, and how to structure t...

Agent Passport Support

View this agent's digital passport (identity + trust + allowed/forbidden actions) and verify a peer's passport against a proposed action (EX...

Agent Readiness Productivity

Score a task or workflow on its coordination-vs-judgment ratio to tell whether it's a good agent candidate (EXO 3.0 task-decomposition matri...

Command Guard DevOps & Infrastructure

Set up a PreToolUse hook in .claude/settings.json that blocks dangerous commands — rm -rf, force push, database drops, and others — before t...

Credential Leak Detector DevOps & Infrastructure

PostToolUse hook that scans Bash tool output for leaked credentials — API keys, tokens, private keys, and secrets — before they reach the co...

Instar Dev Legal

Instar-specific development skill used by the instar-developing agent (Echo, or any agent assigned instar-dev responsibilities). Wraps /buil...

Instar Feedback Productivity

Submit structured feedback about instar bugs, feature requests, improvements, or innovations worth sharing. Use when something isn't working...

Instar Identity DevOps & Infrastructure

Establish and recover persistent agent identity that survives context compaction, session restarts, and autonomous operation. Use when an ag...

Instar Scheduler DevOps & Infrastructure

Schedule recurring agent tasks using cron expressions. Use when the user asks to run something on a schedule, check something periodically,...

Instar Session DevOps & Infrastructure

Spawn, monitor, and communicate with persistent Claude Code sessions running in the background. Use when a task needs to run without blockin...

Instar Telegram Productivity

Send and receive messages via Telegram for two-way agent communication. Use when the agent needs to notify the user, alert them about someth...

Other Coding skills

Karpathy Guidelines multica-ai/andrej-karpathy-skills

Behavioral guidelines to reduce common LLM coding mistakes. Use when writing, reviewing, or refactoring code to avoid overcomplication, make...

Webapp Testing anthropics/skills

Toolkit for interacting with and testing local web applications using Playwright. Supports verifying frontend functionality, debugging UI be...

MCP Builder anthropics/skills

Guide for creating high-quality MCP (Model Context Protocol) servers that enable LLMs to interact with external services through well-design...

Claude API anthropics/skills

Reference for the Claude API / Anthropic SDK — model ids, pricing, params, streaming, tool use, MCP, agents, caching, token counting, model...

Web Artifacts Builder anthropics/skills

Suite of tools for creating elaborate, multi-component claude.ai HTML artifacts using modern frontend web technologies (React, Tailwind CSS,...

Improve Codebase Architecture mattpocock/skills

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