Claude Skills Library

Version: 1.37.1 Last Updated: March 5, 2026 Maintained by: Chris Yeo

A collection of custom Claude skills that extend Claude's capabilities with specialized workflows for productivity, email management, calendar operations, and information retrieval.

Version History

v1.37.1 (March 5, 2026)

Consolidated Calendar Skills: Added daily-calendars as a unified calendar skill with a search sub-command
Migration: Moved standalone search-calendar workflow into daily-calendars/scripts/search_calendar_helper.py for sub-command reuse

v1.37.0 (February 28, 2026)

Consolidated Email Skills: Added daily-emails skill, uniting 7 sub-commands (recent, starred, actioned, topic, stakeholders, draft, format)
Repository Cleanup: Removed 5 deprecated email skills (recent-emails, starred-email, monitor-stakeholders, draft-email, list-emails)

v1.36.1 (December 15, 2025)

Skill Status Update: Documented which skills are not yet loaded into Claude
- Marked actioned-emails as pending Claude upload
- Confirmed new-presentation is now available in Claude
- Restated pending status for other skills still awaiting upload

v1.36.0 (December 14, 2025)

New Skill Added: change-headings
- Converts document headings to normal paragraphs while preserving visual formatting
- Maintains font size, weight, color, and inline styles
- Useful for normalizing document structure without changing appearance

v1.35.5 (November 12, 2025)

Enhanced Integration: Updated work-day-files skill to integrate with list-files micro-skill
- Standardized file presentation using the list-files table format
- Improved metadata handling and summary generation
- Enhanced documentation for consistent output with other file-related skills
Improved Formatting: Updated actioned-emails to use list-emails for consistent email presentation
- Unified email display format across all email-related skills
- Improved status indicators and action item tracking
- Enhanced documentation for better usability

v1.35.4 (November 12, 2025)

Enhanced Formatting: Updated list-files skill with improved table presentation
- Streamlined table columns for better readability
- Added Last Modified sorting by default (newest first)
- Integrated folder context directly into file summaries
- Simplified URL handling with embedded links in filenames
- Enhanced documentation for consistent usage across skills

v1.35.3 (November 12, 2025)

Enhanced Integration: Updated topic-files skill to integrate with list-files micro-skill
- Streamlined file presentation using the standardized list-files table format
- Improved query construction and result handling
- Enhanced documentation for search operators and filtering
- Added support for activity-based file discovery

v1.35.2 (November 12, 2025)

Enhanced Integration: Updated recent-files skill to integrate with list-files micro-skill
- Unified file presentation layer using list-files for consistent formatting
- Improved metadata handling and summary generation
- Added support for custom timeframes and file type filtering
- Enhanced documentation for query construction and time formats

v1.35.1 (November 12, 2025)

Enhanced Performance: Optimized recent-emails skill for better token efficiency
- Implemented strategic Gmail tool usage to minimize token consumption
- Added selective message fetching with read_gmail_message for basic details
- Reserved read_gmail_thread for unread, starred, or priority emails only
- Improved documentation for query construction and time formats

v1.35.0 (November 11, 2025)

Enhanced Integration: Updated recent-emails and starred-email skills to integrate with list-emails
- Unified email presentation layer using list-emails for consistent formatting
- Added support for folder-specific Gmail deep links (Inbox/Sent/Drafts/Starred)
- Enhanced email status indicators and star tracking
- Improved action items and priority assessment sections

v1.34.0 (November 10, 2025)

New Skill: Added list-emails formatting micro-skill for consistent email tables
- Standardizes numbered listings, summaries, and Gmail links for reuse across workflows
- Provides optional sections for starred, priority, financial, and action item callouts
- Designed to be embedded by retrieval-focused skills (e.g., recent-emails, set-up-workday)
- Supports timezone-aware date formatting and multiple status indicators

v1.33.1 (November 9, 2025)

New Skill: Added topic-files for managing and summarizing document collections
- Supports Google Drive query operations for targeted file retrieval
- Includes comprehensive documentation for query operators
- Features a structured summary checklist for consistent output

v1.33.0 (November 8, 2025)

New Skill: Added topic-emails for retrieving Gmail threads tied to a specific subject
- Captures topic keywords, timeframe filters, and label exclusions before querying
- Summarizes spotlight threads plus a complete topic log with Gmail deep links
- Provides export guidance for creating follow-up CSVs manually
Repository Cleanup:
- Removed Ideas/topic-emails.md now that the skill is implemented
- Renamed presentation-jobs to new-presentation for consistency
- Renamed product-white-paper to new-product for better clarity
Documentation Updates:
- Enhanced README with new folder structure
- Updated skill references to reflect new naming conventions

v1.31.1 (November 7, 2025)

Enhanced Skill: Updated presentation-jobs with mandatory Sentient branding
- Enforced Sentient Brand Guidelines for all presentations
- Updated documentation to reflect consistent branding requirements
- Improved integration with Sentient branding standards

v1.31.0 (November 7, 2025)

Documentation Update: Added details about sentient-pptx removal
- Updated README to reflect project structure changes
- Consolidated version history entries

v1.30.0 (November 7, 2025)

Removed Skill: Removed sentient-pptx directory and functionality
- Consolidated presentation capabilities into new-presentation
- Streamlined the project structure by removing redundant components
Enhanced Skill: Further refined new-proposal workflow
- Updated input requirements for executive-focused proposals
- Moved SmartChat Analytics documentation to products folder
- Streamlined proposal generation process
- Improved Workday integration for document management

v1.29.0 (November 6, 2025)

Enhanced Skill: Updated new-proposal with streamlined workflow
- Simplified input requirements for executive-focused proposals
- Standardized on Google Docs output format
- Added comprehensive case studies for SmartChat Analytics
- Integrated with Workday for automatic document storage

v1.28.0 (November 6, 2025)

New Asset: Added SmartChat Analytics product documentation
- Comprehensive white paper on enterprise-grade AI analytics
- Includes strategic framework and implementation guidelines
- Covers ROI analysis and deployment best practices

v1.27.0 (November 6, 2025)

New Skill: Added new-proposal for creating professional business proposals
- Includes AI-powered proposal generation and customization
- Features comprehensive proposal outline template
- Supports multiple export formats and version control

v1.26.0 (November 6, 2025)

Documentation Update: Standardized Work-Day skill reference in set-up-workday
- Updated documentation to consistently use "Work-Day skill" terminology
- Improved clarity in workflow step descriptions

v1.25.0 (November 6, 2025)

Enhanced Skill: Updated set-up-workday with improved documentation and workflow clarity
- Refined workspace preparation step in the workflow
- Clarified skill boundaries and prerequisites
- Improved integration with Work-Day skill

v1.24.0 (November 4, 2025)

New Skill: Added new-quotation for generating customer quotations using structured templates and pricing inputs
Assets: Added Sentient Quotation Excel template under new-quotation/templates/
Documentation: Updated README to include new skill and assets

v1.23.0 (November 4, 2025)

New Idea: Added meeting-minutes skill idea for automated meeting documentation
Documentation: Updated README with latest project status and new skill idea

v1.22.0 (November 3, 2025)

Repository Cleanup: Removed project-pulse-brief idea file from Ideas folder as it's now fully implemented
Documentation: Updated README to reflect current repository state

v1.21.0 (November 3, 2025)

New Skill: Added project-pulse-brief for integrated project tracking and reporting
Repository Cleanup: Removed set-up-workday idea file as it's now fully implemented
Documentation: Added project pulse brief template and guidelines
Repository Structure: Added new project-pulse-brief directory with assets

v1.20.0 (November 3, 2025)

Documentation: Updated README with latest project status
Skill Status: Marked set-up-workday as production-ready

v1.19.0 (November 3, 2025)

Skill Enhancement: Updated set-up-workday with improved YAML frontmatter and documentation
Bug Fixes: Resolved YAML parsing issues in skill metadata

v1.18.0 (November 3, 2025)

New Skill Implementation: Added set-up-workday skill implementation with full orchestration
Enhanced Workflow: Integrated the morning intelligence package with Recent Emails, Calendar, and other core skills

v1.17.0 (November 3, 2025)

Enhanced Skill Idea: Updated set-up-workday with workflow and integration details
Efficiency Improvements: Added optimization strategies for skill orchestration
Documentation: Enhanced setup instructions and dependency management

v1.16.0 (November 3, 2025)

New Skill Idea: Added initial concept for set-up-workday skill
Repository Structure: Added new skill idea documentation

v1.15.0 (November 3, 2025)

New Skill: Added project-pulse-brief for integrated project tracking and reporting
New Skill: Added sentient-proposal-guidelines for standardized proposal creation
Enhanced Skill: Updated customer-brief with comprehensive documentation and use cases
Repository Cleanup: Removed redundant customer brief idea file

v1.14.0 (November 3, 2025)

New Skill: Added customer-brief for generating actionable customer briefs from multiple data sources
Enhanced Documentation: Updated skill structure and usage examples
Repository Structure: Added new customer-brief skill directory with implementation

v1.13.0 (November 2, 2025)

New Skill Ideas: Added documentation for proposal-skill, evening-summary, and weekly-focus-planner
Enhanced Documentation: Updated customer brief specifications and added detailed use cases
Repository Structure: Added new Ideas directory for future skill development

v1.12.0 (November 2, 2025)

Enhanced Skill: Updated actioned-emails with improved documentation and clearer instructions
New Skill: Added starred-email for focused Gmail starred email management
Documentation: Enhanced skill creation instructions with Codex-specific guidance
Templates: Added comprehensive script templates with error handling

v1.10.0 (November 1, 2025)

Documentation: Enhanced skill creation instructions with cross-references
References: Added claude-connections and claude-skills references
Templates: Updated skill creation templates and best practices

v1.9.0 (November 1, 2025)

Documentation: Added comprehensive guide on building Claude skills
References: Created detailed how-to guide for skill development

v1.8.0 (November 1, 2025)

recent-emails: Enhanced Gmail email retrieval with advanced filtering, newsletter detection, and comprehensive activity analysis

v1.7.0 (October 31, 2025)

recent-files: Enhanced Google Drive file discovery with activity insights and chronological work narrative

v1.6.0 (October 31, 2025)

new-product: Added skill for generating enterprise-grade product white papers

v1.5.0 (October 31, 2025)

new-presentation: Added Steve Jobs-style presentation creation with 3-Second Rule methodology

v1.4.0 (October 31, 2025)

presentation-outline: Added skill to transform Google Docs into structured presentation outlines

v1.3.0 (October 26, 2025)

work-day-files: Added file listing and summarization for work-day folders

v1.2.0 (October 25, 2025)

work-day: Added Google Drive folder management for work documents with date-based structure
reverse-month: Added month conversion and standardization (YYYY-MM format)

v1.1.0 (October 23, 2025)

reverse-date: Added date conversion and natural language date parsing

v1.0.0 (October 21, 2025)

Initial release with 5 core skills
recent-emails: Gmail email retrieval functionality
daily-calendars: Unified calendar operations with search + meeting sub-commands, fuzzy matching, and meeting-profile validation
recent-drive: Google Drive file discovery
news-snapshot: International and Singapore news briefing
set-up-workday: Comprehensive morning orchestration and executive brief
Established standardized folder structure with skill.md files
Created documentation and usage guidelines

What Are Claude Skills?

Claude Skills are structured prompt templates that teach Claude how to perform specific tasks consistently and effectively. Each skill is defined in YAML frontmatter format with a name, description, and detailed instructions.

Key Components

SKILL.md: Core definition and instructions
Scripts: Executable code for the skill
References: Documentation and schemas
Assets: Templates and resources

Getting Started

Available Skills

📧 daily-emails

Unified Gmail skill with 7 sub-commands: recent, starred, actioned, topic, stakeholders, draft, and format. Consolidates email retrieval, drafting, stakeholder monitoring, and executive formatting into a single efficient workflow.

📅 daily-calendars

Unified calendar skill with search and meeting sub-commands. search handles Google Calendar retrieval by day/date/week, subject, attendee names, and attendee emails/domains with enriched context; meeting returns or validates a default typical meeting definition (60 minutes, online, Google Meet).

✏️ change-headings

Converts document headings into normal paragraphs while preserving their original visual appearance (font size, weight, color, and formatting). Ideal for normalizing document structure without altering the visual design. Handles all heading levels and maintains inline formatting.

🔄 set-up-workday

Runs the entire morning activation workflow in one command, including unread email triage, calendar review, Drive activity scan, task synthesis, news snapshot, and workspace preparation. Deduplicates inputs across supporting skills and outputs an executive-format kickoff brief with staged Drive links.

� project-pulse-brief (Not yet loaded in Claude)

Curates stakeholder-ready pulse briefs that summarize project portfolio updates, risks, and next steps. Provides a structured approach to project status reporting with reusable templates and checklists. Note: This skill has been developed but not yet loaded into Claude's active skillset.

�📂 recent-drive

Lists the most recent files created or modified in Google Drive. Defaults to last 24 hours, or accepts custom timeframe. Returns files with modification dates, summaries, and clickable links sorted by recency.

📰 news-snapshot

Retrieve and summarize current international and Singapore news stories with headlines, brief context, and source links in a professional executive format. Use when you need a quick daily news briefing with verified sources.

📆 reverse-date

Converts between natural language date descriptions and standard date formats. Supports relative dates (e.g., "two days ago"), date formatting, and date difference calculations.

📅 reverse-month

Converts dates to standardized YYYY-MM format, extracting just the year and month components. Ideal for monthly reporting, aggregations, and calendar operations.

🗂️ work-day

Manages Google Drive folder structure for work documents, automatically creating month (YYYY-MM Work) and day (YYYY-MM-DD) folders. Ensures consistent organization for daily work files.

📄 work-day-files

Lists and summarizes files in work-day folders with 40-word summaries. Navigates the YYYY-MM Work/YYYY-MM-DD folder structure to retrieve and summarize documents, spreadsheets, and other files for a given work day.

📝 presentation-outline

Transforms Google Docs into structured presentation outlines with titles, subtitles, and bullet points. Generates up to 10 slides with clear organization and logical flow, ideal for quickly creating presentation drafts from existing documentation.

🎯 new-presentation

Create powerful presentations using Steve Jobs's 3-Second Rule methodology. Applies the Billboard Test principles for minimal cognitive load, maximum visual impact, and elegant slide design. Ideal for product launches, pitches, and keynotes that require high audience retention and visual clarity.

📄 new-product

Generate comprehensive Enterprise AI Product White Papers using existing documentation as source material. Creates authoritative, research-backed documents that educate buyers and present solutions to complex business problems, with a focus on strategic value and ROI for enterprise audiences.

🧾 new-quotation

Generate customer quotations using a structured template and pricing inputs. Includes a Sentient Quotation Excel template and Markdown template for consistent formatting.

📑 new-proposal (Not yet loaded in Claude)

Create and manage professional sales proposals with AI-powered templates. Features include dynamic content generation, comprehensive case studies, and automated Google Docs output. The skill is optimized for executive audiences with streamlined input requirements and direct Workday integration for document management. Note: This skill has been developed but not yet loaded into Claude's active skillset.

💰 smartchat-service-costs (Not yet loaded in Claude)

Analyzes and estimates costs for SmartChat service implementations. Provides cost breakdowns, scenario planning, and ROI calculations for different deployment scales. Includes reference architectures and cost optimization recommendations. Note: This skill has been developed but not yet loaded into Claude's active skillset.

📂 Topic Files

Advanced document management and summarization tool for organizing and analyzing document collections. Features include Google Drive query support, structured summarization, and comprehensive documentation for query operators. Includes a summary checklist for consistent output quality.

📄 list-files

Generate organized file listings with consistent formatting, metadata, and Google Drive deep links. Includes file type categorization, size indicators, and last modified timestamps. Ideal for creating structured file inventories and document collections.

📊 SmartChat Analytics

Enterprise-grade AI analytics platform enabling natural language data exploration and insights. Features include semantic data understanding, natural language querying, and explainable AI outputs. Comprehensive white paper available in the products directory.

🔍 recent-files

Track and analyze recent Google Drive activity with detailed metadata and insights. Features include chronological work narratives, activity patterns, project focus areas, and client-specific tracking. Ideal for reviewing work history, tracking project progress, and maintaining awareness of team activities.

Folder Structure

/
├── daily-emails/           # Unified Gmail skill (recent, starred, drafting, stakeholders)
│   └── skill.md           # Skill implementation
├── daily-calendars/       # Unified calendar skill (search + meeting sub-commands)
│   ├── skill.md           # Skill implementation
│   └── scripts/           # Calendar helper reference code
├── recent-drive/           # Google Drive file discovery skill
│   └── skill.md           # Skill implementation
├── news-snapshot/          # News briefing skill
│   └── skill.md           # Skill implementation
├── set-up-workday/       # Morning orchestration and executive brief skill
│   └── skill.md           # Skill implementation
├── reverse-date/          # Date conversion and parsing skill
│   ├── scripts/           # Python scripts for date handling
│   │   └── convert_date.py
│   └── skill.md           # Skill implementation
├── reverse-month/         # Month conversion and parsing skill
│   ├── scripts/           # Python scripts for month handling
│   │   └── convert_month.py
│   └── skill.md           # Skill implementation
├── work-day/              # Work day folder management skill
│   └── skill.md           # Skill implementation
├── work-day-files/        # Work day file listing and summarization
│   └── skill.md           # Skill implementation
├── presentation-outline/  # Presentation outline generation
│   ├── guidelines/        # Presentation guidelines
│   └── skill.md          # Skill implementation
├── new-presentation/      # Steve Jobs-style presentations
│   └── skill.md          # Skill implementation
├── new-product/           # Enterprise white paper generation
│   ├── references/       # White paper templates and guidelines
│   └── skill.md          # Skill implementation
├── new-quotation/         # Quotation generation skill
│   ├── templates/
│   │   ├── sentient-quotation-template.md
│   │   └── Sentient Quotation Template.xlsx
│   └── skill.md          # Skill implementation
├── new-proposal/         # Business proposal generation
│   ├── proposals/
│   │   └── SmartChat-Analytics.md  # Enterprise AI Analytics White Paper library
│   ├── templates/
│   │   └── proposal-outline.md  # AI Sales Proposal Outline
│   └── skill.md          # Skill implementation
├── recent-files/         # Drive activity tracking and insights
│   └── skill.md          # Skill implementation
└── README.md             # This file

Each subfolder contains a skill.md file that implements the Claude skill with its complete instructions and workflow.

How to Use

Prepare the skill: Navigate to the skill's subfolder you want to use
Create a zip file: Compress the entire subfolder into a .zip file (e.g., daily-calendars.zip)
Upload to Claude: Upload the zip file to Claude's Skills functionality
Invoke the skill: Reference the skill by name or use the trigger phrase specified in the skill description
Customize: Edit the skill.md files to match your specific needs and preferences before zipping

Skill File Format

Each skill follows this YAML frontmatter format:

---
name: skill-name
description: Brief description of what the skill does
---

# Skill Title

[Detailed instructions and workflow]

Reference Materials

Core Documentation

How to Build Claude Skills - Comprehensive guide to creating custom Claude skills
Claude Connections - Available integrations and their capabilities
Claude Skills Reference - Catalog of existing skills and patterns

Development Resources

Skill Creation Instructions - Step-by-step guide for AI-assisted skill development
Skill Templates - Starter templates for common skill types
Codex Integration Guide - Optimizing skills for OpenAI Codex

Best Practices

Keep SKILL.md under 500 lines
Use progressive disclosure
Document success criteria and guard rails
Reference existing skills to avoid duplication

Development Workflow

Plan
- Review existing skills and connections
- Define success criteria and guard rails
- Design with progressive disclosure in mind
Develop
- Create SKILL.md with clear instructions
- Implement required scripts and assets
- Document all components
Test
- Verify skill identification with different phrasings
- Test edge cases and error conditions
- Validate integration points
Deploy
- Package the skill
- Document usage examples
- Add to the skills catalog

Requirements

API Integrations

Gmail API for email-related skills
Google Calendar API for calendar operations
Google Drive API for file management
News APIs for news retrieval (optional)
See claude-connections for full list

Development Environment

Python 3.8+
Git for version control
Text editor or IDE
Access to required APIs and services

See individual skill folders for specific setup instructions.

Name	new-quotation
Description	Generate a Sentient.io-branded quotation by gathering client inputs, filling the Sentient Quotation template, and delivering the document into the correct Work Day Google Drive folder via the work-day skill.

new-quotation

SKILL.md