Best Claude Code subagents
Ordered by install count from the source, then by repository stars on GitHub. Only cards with a checked description are included.
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1
40,905installs
frontend-developer
This subagent builds frontend applications with React, Vue, and Angular while following the project’s existing patterns. Use it for larger UI tasks.
subagent · VoltAgent Community · MIT
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2
31,050installs
code-reviewer official
This subagent checks code changes for bugs, security issues, and project-rule violations. Use it when a review should focus on findings that matter.
subagent · Anthropic · Apache-2.0
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3
31,050installs
code-reviewer official
Reviews code changes against CLAUDE.md project rules and flags material defects. Run it before a commit or pull request.
subagent · Anthropic · Apache-2.0
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4
31,050installs
code-reviewer
Reviews code changes for bugs, security flaws and maintenance issues. Use it before merging complex work or auditing a project.
subagent · VoltAgent Community · MIT
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5
27,069installs
ui-ux-designer
A subagent for interface design, wireframes, and design systems with user research and accessibility in mind. Use it for UX work in Claude Code, Codex, or Cursor.
subagent · Seth Hobson · MIT
-
6
18,117installs
fullstack-developer
This subagent carries a feature across the database, API, and frontend layers. Use it when one change needs a consistent end-to-end implementation.
subagent · VoltAgent Community · MIT
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7
16,078installs
prompt-engineer
This subagent designs and tests prompts for LLM features, agent workflows, and system instructions. Use it when prompt structure, safety, or evaluation needs deliberate work.
subagent · Seth Hobson · MIT
-
8
16,078installs
prompt-engineer
This subagent designs, tests, and improves prompts for LLM production systems. Use it when prompts need evaluation, metrics, or cost tracking.
subagent · VoltAgent Community · MIT
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9
13,459installs
debugger
Diagnoses software failures, reads stack traces, and isolates root causes to fix elusive bugs. Helpful when logs alone do not explain a crash.
subagent · VoltAgent Community · MIT
-
10
11,689installs
python-pro
A subagent for modern Python 3.12+ development, async code, testing, APIs, and performance work. Use it when a project needs deeper Python guidance.
subagent · Seth Hobson · MIT
-
11
11,689installs
python-pro
A subagent for type-safe Python code across web APIs, system utilities, and complex applications. Use it when async patterns and broad type coverage matter.
subagent · VoltAgent Community · MIT
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12
10,718installs
security-auditor official
This subagent finds code vulnerabilities, exposed secrets, and risky dependencies. Use it for security debt reviews or hardening before modernization.
subagent · Anthropic · Apache-2.0
-
13
10,718installs
security-auditor
Audits security controls, vulnerabilities, risks, and compliance gaps across systems, infrastructure, and processes. Use it when you need documented findings.
subagent · VoltAgent Community · MIT
-
14
10,638installs
context-manager
Organizes shared context for multi-agent projects in files, including state, task history, and decisions. Use it when agents need a clear shared workspace.
subagent · VoltAgent Community · MIT
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15
9,715installs
test-engineer official
This subagent captures legacy behavior in tests and compares it with a rewritten implementation. Use it before changing existing modules.
subagent · Anthropic · Apache-2.0
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16
9,602installs
typescript-pro
A subagent for advanced TypeScript types, strict checking, and architecture work. Use it when generics, inference, or decorators need careful design.
subagent · Seth Hobson · MIT
-
17
9,602installs
typescript-pro
This subagent handles advanced TypeScript patterns, complex generics, and type safety across frontend and backend code. Use it for type-heavy project work.
subagent · VoltAgent Community · MIT
-
18
7,777installs
mobile-developer
A subagent for React Native and Flutter apps that covers native features, offline-first architecture, and platform-aware performance work.
subagent · VoltAgent Community · MIT
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19
7,687installs
ai-engineer
This subagent designs LLM applications, RAG systems, and AI agents. Use it when a project needs vector search, model orchestration, or multimodal AI.
subagent · Seth Hobson · MIT
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20
7,687installs
ai-engineer
This subagent helps design AI systems, choose models, build training pipelines, and prepare deployment. Use it when work spans research through production.
subagent · VoltAgent Community · MIT
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21
7,557installs
error-detective
A Claude subagent that digs into failures: correlates errors across services, traces cascades and suggests how to prevent them.
subagent · VoltAgent Community · MIT
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22
7,392installs
devops-engineer
This subagent reviews infrastructure and helps with CI/CD, containers, and deployment workflows. Use it when you want to automate software delivery or add security checks to the process.
subagent · VoltAgent Community · MIT
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23
6,886installs
search-specialist
A web research subagent that filters sources and cross-checks facts. Use it for deep research, competitive analysis, and trend work.
subagent · Seth Hobson · MIT
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24
6,886installs
search-specialist
A subagent that hunts down precise information across many sources: builds queries, picks sources, filters results. Useful when the job is finding, not analyzing.
subagent · VoltAgent Community · MIT
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25
6,451installs
api-documenter
Drafts OpenAPI 3.1 specs, code examples, and integration guides for REST or GraphQL APIs. Helpful when documenting endpoints and standardizing schemas.
subagent · VoltAgent Community · MIT
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26
6,079installs
deployment-engineer
Designs and tunes CI/CD pipelines, automates rollback triggers, and sets up canary or blue-green releases. Helpful when manual deployment steps slow down your team.
subagent · VoltAgent Community · MIT
-
27
4,974installs
javascript-pro
Subagent for modern ES6+, async architecture, and Node.js or browser APIs. It catches race conditions and handles event loop edge cases.
subagent · Seth Hobson · MIT
-
28
4,974installs
javascript-pro
This subagent reviews and changes JavaScript for browser and Node.js projects. Use it for work involving async code, performance, or modern language features.
subagent · VoltAgent Community · MIT
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29
4,345installs
technical-writer
This subagent creates and maintains API references, user guides, and SDK docs. Use it when a project needs new technical content or a review of existing documentation.
subagent · VoltAgent Community · MIT
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30
4,038installs
content-marketer
This subagent plans content, SEO work, and channel distribution. Use it when an agent needs to research topics, shape campaigns, or adapt materials for several formats.
subagent · Seth Hobson · MIT
Subagents here are ranked by repository popularity and install counts where the source tracks them. Each one is checked so the description matches the file. When picking, look at the tools field: a reviewer needs read access only, and a subagent with Bash deserves less trust. The model field tells you whether it will pull an expensive model into a simple task. How they work: Claude Code subagents.
