Context Master

If you're building anything with more than three files or making architecture decisions, this skill walks you through a five-step workflow: stop, plan with extended thinking, announce your file order, create foundations before dependents, then verify all references resolve. The token savings are real. A medium project drops from 12K to 4.5K tokens by planning CSS and config files first instead of refactoring later. It works identically in Web, API, and CLI, with CLI-specific bonuses like subagent delegation that keeps 5K tokens of deep reasoning out of your main context. The references folder has ready-made workflows for research, refactoring, and feature development. It's opinionated about not creating files before you plan, which will feel slow once but save you context on every project after.

skills.sh installs: 399
GitHub stars: 61
last updated: Aug 21, 2026

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Install

$ npx -y skills add josiahsiegel/claude-plugin-marketplace --skill context-master --agent claude-code

Installs into .claude/skills of the current project.

Files

Context Master

Universal context management and planning skill for complex tasks, long sessions, and multi-file projects. Works the same way whether you are in the Web app, the API, or Claude Code CLI; CLI-specific bonuses live in references/claude-code-cli.md.

This SKILL.md is intentionally short. Detailed material lives in references/ — load only what you need.

When to activate

Activate proactively whenever the request matches one of:

Multi-file project (3+ related files, websites, apps, APIs, doc sets).
Architecture or technology decision ("should we use X or Y", "which approach…").
Research / comparison / tradeoff analysis.
Refactoring or migration work.
Long coding session where context efficiency matters.
Any task with 3+ sequential steps or shared dependencies.

If the request is a single file with no dependencies, skip this skill.