Skills real projects publish on GitHub, most starred first. Each one says what it will make an agent do before you copy it.
AnthropicSkillanthropics/claude-code/plugins/claude-opus-4-5-migration/skills/claude-opus-4-5-migration/SKILL.md
Migrate prompts and code from Claude Sonnet 4.0, Sonnet 4.5, or Opus 4.1 to Opus 4.5. Use when the user wants to update their codebase, prompts, or API calls to use Opus 4.5. Handles model string updates and prompt adjustments for known Opus 4.5 behavioral differences. Does NOT migrate Haiku 4.5.
AnthropicSkillanthropics/claude-code/plugins/hookify/skills/writing-rules/SKILL.md
This skill should be used when the user asks to "create a hookify rule", "write a hook rule", "configure hookify", "add a hookify rule", or needs guidance on hookify rule syntax and patterns.
AnthropicSkillanthropics/claude-code/plugins/plugin-dev/skills/agent-development/SKILL.md
This skill should be used when the user asks to "create an agent", "add an agent", "write a subagent", "agent frontmatter", "when to use description", "agent examples", "agent tools", "agent colors", "autonomous agent", or needs guidance on agent structure, system prompts, triggering conditions, or agent development best practices for Claude Code plugins.
AnthropicSkillanthropics/claude-code/plugins/plugin-dev/skills/command-development/SKILL.md
This skill should be used when the user asks to "create a slash command", "add a command", "write a custom command", "define command arguments", "use command frontmatter", "organize commands", "create command with file references", "interactive command", "use AskUserQuestion in command", or needs guidance on slash command structure, YAML frontmatter fields, dynamic arguments, bash execution in commands, user interaction patterns, or command development best practices for Claude Code.
AnthropicSkillanthropics/claude-code/plugins/plugin-dev/skills/hook-development/SKILL.md
This skill should be used when the user asks to "create a hook", "add a PreToolUse/PostToolUse/Stop hook", "validate tool use", "implement prompt-based hooks", "use ${CLAUDE_PLUGIN_ROOT}", "set up event-driven automation", "block dangerous commands", or mentions hook events (PreToolUse, PostToolUse, Stop, SubagentStop, SessionStart, SessionEnd, UserPromptSubmit, PreCompact, Notification). Provides comprehensive guidance for creating and implementing Claude Code plugin hooks with focus on advanced prompt-based hooks API.
AnthropicSkillanthropics/claude-code/plugins/plugin-dev/skills/mcp-integration/SKILL.md
This skill should be used when the user asks to "add MCP server", "integrate MCP", "configure MCP in plugin", "use .mcp.json", "set up Model Context Protocol", "connect external service", mentions "${CLAUDE_PLUGIN_ROOT} with MCP", or discusses MCP server types (SSE, stdio, HTTP, WebSocket). Provides comprehensive guidance for integrating Model Context Protocol servers into Claude Code plugins for external tool and service integration.
AnthropicSkillanthropics/claude-code/plugins/plugin-dev/skills/plugin-settings/SKILL.md
This skill should be used when the user asks about "plugin settings", "store plugin configuration", "user-configurable plugin", ".local.md files", "plugin state files", "read YAML frontmatter", "per-project plugin settings", or wants to make plugin behavior configurable. Documents the .claude/plugin-name.local.md pattern for storing plugin-specific configuration with YAML frontmatter and markdown content.
AnthropicSkillanthropics/claude-code/plugins/plugin-dev/skills/plugin-structure/SKILL.md
This skill should be used when the user asks to "create a plugin", "scaffold a plugin", "understand plugin structure", "organize plugin components", "set up plugin.json", "use ${CLAUDE_PLUGIN_ROOT}", "add commands/agents/skills/hooks", "configure auto-discovery", or needs guidance on plugin directory layout, manifest configuration, component organization, file naming conventions, or Claude Code plugin architecture best practices.
AnthropicSkillanthropics/claude-code/plugins/plugin-dev/skills/skill-development/SKILL.md
This skill should be used when the user wants to "create a skill", "add a skill to plugin", "write a new skill", "improve skill description", "organize skill content", or needs guidance on skill structure, progressive disclosure, or skill development best practices for Claude Code plugins.
AnthropicSkillanthropics/claude-cookbooks/.claude/skills/cookbook-audit/SKILL.md
Audit an Anthropic Cookbook notebook based on a rubric. Use whenever a notebook review or audit is requested.
AnthropicSkillanthropics/claude-cookbooks/skills/custom_skills/analyzing-financial-statements/SKILL.md
This skill calculates key financial ratios and metrics from financial statement data for investment analysis
AnthropicSkillanthropics/claude-cookbooks/skills/custom_skills/applying-brand-guidelines/SKILL.md
This skill applies consistent corporate branding and styling to all generated documents including colors, fonts, layouts, and messaging
AnthropicSkillanthropics/claude-cookbooks/skills/custom_skills/creating-financial-models/SKILL.md
This skill provides an advanced financial modeling suite with DCF analysis, sensitivity testing, Monte Carlo simulations, and scenario planning for investment decisions
AnthropicSkillanthropics/financial-services/claude-for-msft-365-install/.claude/skills/verify/SKILL.md
Verify changes to the claude-for-msft-365-install admin scripts and commands by driving them against an isolated fake $HOME.
AnthropicSkillanthropics/financial-services/plugins/agent-plugins/earnings-reviewer/skills/audit-xls/SKILL.md
Audit a spreadsheet for formula accuracy, errors, and common mistakes. Scopes to a selected range, a single sheet, or the entire model (including financial-model integrity checks like BS balance, cash tie-out, and logic sanity). Triggers on "audit this sheet", "check my formulas", "find formula errors", "QA this spreadsheet", "sanity check this", "debug model", "model check", "model won't balance", "something's off in my model", "model review".
AnthropicSkillanthropics/financial-services/plugins/agent-plugins/earnings-reviewer/skills/earnings-analysis/SKILL.md
Create professional equity research earnings update reports (8-12 pages, 3,000-5,000 words) analyzing quarterly results for companies already under coverage. Fast-turnaround format focusing on beat/miss analysis, key metrics, updated estimates, and revised thesis. Includes 1-3 summary tables and 8-12 charts. Use when user requests "earnings update", "quarterly update", "earnings analysis", "Q1/Q2/Q3/Q4 results", or post-earnings report.
AnthropicSkillanthropics/financial-services/plugins/agent-plugins/earnings-reviewer/skills/earnings-preview/SKILL.md
Build pre-earnings analysis with estimate models, scenario frameworks, and key metrics to watch. Use before a company reports quarterly earnings to prepare positioning notes, set up bull/bear scenarios, and identify what will move the stock. Triggers on "earnings preview", "what to watch for [company] earnings", "pre-earnings", "earnings setup", or "preview Q[X] for [company]".
AnthropicSkillanthropics/financial-services/plugins/agent-plugins/earnings-reviewer/skills/model-update/SKILL.md
Update financial models with new data — quarterly earnings, management guidance, macro changes, or revised assumptions. Adjusts estimates, recalculates valuation, and flags material changes. Use after earnings, guidance updates, or when assumptions need refreshing. Triggers on "update model", "plug earnings", "refresh estimates", "update numbers for [company]", "new guidance", or "revise estimates".
AnthropicSkillanthropics/financial-services/plugins/agent-plugins/earnings-reviewer/skills/morning-note/SKILL.md
Draft concise morning meeting notes summarizing overnight developments, trade ideas, and key events for coverage stocks. Designed for the 7am morning meeting format — tight, opinionated, actionable. Triggers on "morning note", "morning meeting", "what happened overnight", "trade idea", "morning call prep", or "daily note".
AnthropicSkillanthropics/financial-services/plugins/agent-plugins/earnings-reviewer/skills/xlsx-author/SKILL.md
Produce a .xlsx file on disk (headless) instead of driving a live Excel workbook — for managed-agent sessions with no open Office app.
A folder with a SKILL.md file: a name, a description of when to use it, and instructions. Claude loads a skill only when the task matches its description.
Copy the folder into your project's .claude/skills/ directory, or into your own skills folder to use it everywhere.
We read each file for commands that read secrets, delete things or pipe downloads into a shell, and say so before you copy it. No warning is not a promise that a file is safe.
Open a skill to see its discussion. Reports from people and their agents are coming.
