developer-toolbox
Essential development workflow agents for code review, debugging, testing, documentation, and git operations.
Skill by Jezweb
Install
Works with Claude Code, Claude apps, Codex, Cursor, Gemini CLI, GitHub Copilot, VS Code, OpenCode, Goose, Windsurf. Read the repository before you give any tool access to your data.
npx agentmarket install skill/fefogarcia-developer-toolbox
Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.
Get the weekly diff
The weekly diff: one email a week with new agent tools, notable updates and grade changes, plus security alerts for tools you follow. Double opt-in, one-click unsubscribe.
About
Use cases: testing, writing, productivity
Reviews
Write a reviewNo reviews yet. Installed it? Reviews come from verified installers only. How reviews work
Permissions
What this skill can do and what it asks for, from its SKILL.md. Checked Oct 25, 2026.
- Tools
- No tools found
- Secrets
- None asked for
- Install scripts
- None found
Network hosts it talks to 1
codeload.github.com· found in install command
Files it touches
~/.claude/skills/developer-toolbox
What's inside
- Skill name
developer-toolbox- Description
- Essential development workflow agents for code review, debugging, testing, documentation, and git operations. Includes 7 specialized agents with strong auto-discovery triggers. Use when: setting up development workflows, code reviews, debugging errors, writing tests, generating documentation, creating commits, or verifying builds.
- License
- MIT
- Metadata
- author: Jezweb · version: 1.0.0 · last_verified: 2025-01-20
- Instructions
- 134 lines in SKILL.md · view on GitHub
Files (10)
- plugin.json · .claude-plugin/
- SKILL.md
- build-verifier.md · agents/
- code-reviewer.md · agents/
- commit-helper.md · agents/
- debugger.md · agents/
- documentation-expert.md · agents/
- orchestrator.md · agents/
- test-runner.md · agents/
- agent-first-thinking.md · rules/
SKILL.md (first lines)
# Developer Toolbox A collection of essential development workflow agents that integrate seamlessly with Claude Code. ## What's Included ### Agents (7) | Agent | Purpose | Triggers On | |-------|---------|-------------| | **commit-helper** | Generate conventional commit messages | "commit message", "staged changes" | | **build-verifier** | Verify dist/ matches source after builds | "changes not appearing", "verify build" | | **code-reviewer** | Security audits and code quality reviews | "code review", "security audit", "OWASP" | | **debugger** | Systematic debugging with root cause analysis | "error", "TypeError", "stack trace", "bug" | | **test-runner** | TDD workflow and test creation | "write tests", "TDD", "coverage", "jest" | | **orchestrator** | Coordinate complex multi-step projects | "coordinate", "multi-step", "complex feature" | | **documentation-expert** | README, API docs, architecture diagrams | "document", "README", "API docs" | ### Rules (1) | Rule | Purpose | |------|---------| | **agent-first-thinking** | Behavioral interrupt - consider agents before manual work | ## Installation ```bash # Via marketplace /plugin install developer-toolbox # Or local development /plugin install ./skills/developer-toolbox ``` After installation, restart Claude Code to load the agents. ## Usage Examples ### Commit Helper ``` "Help me write a commit message for these staged changes" ``` ### Build Verifier ``` "My changes aren't appearing in production, verify the build output" ``` ### Code Reviewer ``` "Review this authentication code for security vulnerabilities" ``` ### Debugger ``` "I'm getting TypeError: Cannot read property 'map' of undefined" ``` ### Test Runner ``` "Use TDD to implement this user validation function" ``` ### Orchestrator ``` "Coordinate a refactor of the authentication system across 5 services" ``` ### Documentation Expert ``` "Create comprehensive API documentation for this REST endpoint" ``` ## Agent Design Philosophy All agents follow the **"MUST BE USED when"** pattern for reliable auto-discovery: ```yaml description: | [Role] specialist. MUST BE USED when: [trigger 1], [trigger 2], [trigger 3]. Use PROACTIVELY for [broad task category]. Keywords: keyword1, keyword2, error-message-fragment ``` This ensures Claude Code discovers and proposes the right agent automatically based on user requests. ## Agent-First Thinking Rule The included `agent-first-thinking.md` rule encourages using agents by default: **The Inversion:** - Wrong: "I'll do this manually unless it's big enough for agents" - Right: "I'll use agents unless there's a reason not to" **Triggers:** | If about to... | Use instead... | |----------------|----------------| | grep/glob 3+ times | Explore agent | | Read 5+ files | Explore agent | | Same edit across files | Parallel agents | | Audit multiple items | Parallel swarm | ## Customization Each agent can be extended by editing its markdown file after installation: ```bash # Find installed agents ls ~/.claude/plugins/cache/*/developer-toolbox/*/agents/ # Or copy to user-level for customization cp [plugin-path]/agents/code-reviewer.md ~/.claude/agents/ ``` ## Combining Agents Agents work well together:
From fefogarcia/approved-skills, MIT.
More from fefogarcia/approved-skills
- 0.443score
brand-architect
fefogarcia
Use this skill when users need to develop brand strategy, choose a company name, define brand positioning, create brand voice, or build brand identity from…
SkillDFreshness: D★ 2Claude Code +9 - 0.443score
carbon-design-system
fefogarcia
Build UIs using IBM's Carbon Design System.
SkillDFreshness: D★ 2Claude Code +9 - 0.443score
data-visualization
fefogarcia
Create production-quality data visualizations including charts, dashboards, and infographics.
SkillDFreshness: D★ 2Claude Code +9 - 0.443score
dependency-audit
fefogarcia
Comprehensive dependency health auditing for JavaScript/TypeScript projects.
SkillDFreshness: D★ 2Claude Code +9 - 0.440score
design-consistency-auditor
fefogarcia
Audit and maintain design system consistency, UX/UI patterns, color palettes, and design best practices across frontend applications
SkillDFreshness: D★ 2Claude Code +9 - 0.438score
deep-debug
fefogarcia
Multi-agent investigation for stubborn bugs.
SkillDFreshness: D★ 2Claude Code +9 - 0.438score
business-model-auditor
fefogarcia
Use this skill when users need to stress test their business model, identify scale limitations, find bottlenecks, determine if they're trading time for money…
SkillDFreshness: D★ 2Claude Code +9 - 0.430score
business-intelligence
fefogarcia
Expert business intelligence covering dashboard design, data visualization, reporting automation, and executive insights delivery.
SkillDFreshness: D★ 2Claude Code +9 - 0.412score
doc-coauthoring
fefogarcia
Guide users through a structured workflow for co-authoring documentation.
SkillDFreshness: D★ 2Claude Code +9
Signals
- Stars
- 2
- Forks
- 0
- Open issues
- 0
- Last commit (this folder)
- Feb 10, 2026 (8 months ago)
From GitHub (fetched Oct 24, 2026).
Details
- Version
- 1.0.0
- License
- MIT
- Repository
- github.com/fefogarcia/approved-skills
- First seen
- Oct 24, 2026
- Last checked
- Oct 24, 2026
- Source
- GitHubgithub-graphql
Cite this page
developer-toolbox skill. Agent Mart. https://agentmart.dev/skills/fefogarcia-developer-toolbox (last updated 2026-10-24)