Must-Have Claude Code Skills for 2026: The Complete Collection

This is the complete list of SKILL.md skills worth installing for Claude Code in 2026, organized by workflow. Whether you're looking for a single skill to try or want to build a comprehensive toolkit, start here.

Git and version control

These skills automate the repetitive parts of git workflows while keeping your commit history clean and your PRs informative.

git-commit-writer — Writes conventional commit messages from staged changes. Detects type, scope, and breaking changes. The most downloaded skill on Agensi. Free.

pr-description-writer — Generates pull request descriptions from branch diffs. Covers what changed, why, and what to test. Supports GitHub, GitLab, and Bitbucket. Free.

changelog-generator — Transforms commit history into user-facing release notes. Groups by type, filters internal commits. Free.

Code quality and review

Skills that catch bugs, security issues, and style problems before they ship.

code-reviewer — Structured code review with severity levels. Checks for security vulnerabilities, logic errors, edge cases, and performance issues. Free.

Documentation

Skills that generate accurate documentation from your actual codebase.

readme-generator — Scans project structure and generates a complete README with installation instructions, usage examples, and tech stack overview. Free.

Environment and debugging

Skills for diagnosing issues and keeping your development environment healthy.

env-doctor — Systematically diagnoses why your project won't start. Checks runtime versions, dependencies, env vars, database connections, and port conflicts. Free.

Database and migrations

Skills for safe database changes.

migration-auditor — Reviews migration files for table locking hazards, data loss risks, missing rollbacks, and index issues. Supports PostgreSQL, MySQL, and SQLite.

Getting started with these skills

If you're new, start with the starter kit — five essential skills that cover the most common workflows. Once comfortable, explore skill combinations that create powerful automated pipelines.

All skills work with Claude Code, OpenClaw, Codex CLI, Cursor, and other SKILL.md-compatible agents. Install by downloading from Agensi and unzipping to ~/.claude/skills/.

Browse the full marketplace at Agensi — new skills are added every week across code review, DevOps, documentation, testing, frontend design, API development, and productivity.

Browse the complete SKILL.md collection at Agensi.

Related Articles

• Claude Code Starter Kit: 5 Essential Skills Every Developer Needs
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• Best Claude Code Skill Combinations: Bundles That Work Together