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output-styles

@reggiechan74/claude-plugins
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Understanding output styles in Claude Code (deprecated feature). Use when user asks about customizing Claude's behavior, output styles, or explanatory/learning modes.

Install Skill

1Download skill
2Enable skills in Claude

Open claude.ai/settings/capabilities and find the "Skills" section

3Upload to Claude

Click "Upload skill" and select the downloaded ZIP file

Note: Please verify skill by going through its instructions before using it.

SKILL.md

name output-styles
description Understanding output styles in Claude Code (deprecated feature). Use when user asks about customizing Claude's behavior, output styles, or explanatory/learning modes.

Claude Code Output Styles

Deprecation Status

Output styles are deprecated as of November 5, 2025. The feature has been automatically converted to plugins and is no longer supported.

What Output Styles Were

Output styles allowed customization of Claude Code's behavior beyond software engineering tasks. They directly modified the system prompt while preserving core capabilities like file operations and script execution.

Built-in Styles (Deprecated)

Default: Standard software engineering assistance

Explanatory: Provides educational 'Insights' in between helping you complete software engineering tasks

Learning: Collaborative mode where Claude shares insights and requests user contributions, marked with TODO(human) comments

How They Worked

Output styles excluded default code generation instructions and substituted custom system prompt guidance instead. This differed from CLAUDE.md or --append-system-prompt, which only appended context rather than replacing the base prompt.

Migration Path

Users should transition to:

  1. SessionStart hooks - for adding context at session start via plugin-based automation
  2. Subagents - for specialized AI assistants with custom system prompts and specific tool permissions
  3. Plugins - the primary replacement, with more powerful and flexible ways to customize Claude Code's behavior

Installation Example

The explanatory output style is available as a plugin:

/plugin marketplace add anthropics/claude-code
/plugin install explanatory-output-style@claude-code-plugins

Recommended Alternatives

For customizing Claude Code's behavior, use:

  • Plugins for distributable, reusable customizations
  • Subagents for task-specific specialized assistants
  • SessionStart hooks for session initialization context
  • CLAUDE.md for project-specific context
  • --append-system-prompt for session-specific instructions