Is the Deep Agents Architecture skill free?

Yes. The skill itself is free from existential-birds/beagle. SkillProof publishes the install command and an independent test verdict at no cost.

What is the Deep Agents Architecture SkillProof Score?

9.2/10 — installs cleanly 5/5, triggers reliably 5/5, output vs. baseline 8/10, docs & honesty 5/5.

How do I install Deep Agents Architecture?

Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.

Can I use Deep Agents Architecture with Cursor, Copilot, Gemini CLI, Codex or other AI tools?

The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.

Deep Agents Architecture

Decision gates for Deep Agents: backend, subagents, middleware, HITL, checkpointing.

by existential-birds · existential-birds/beagle

Tested · Works

Install — copy the command Download source ↗

Test report

Verdict: Tested · Works
Score: 9.2/10
Tested: Jul 14, 2026
Environment: Claude Code 2.x (agent harness)
Upstream re-checked: Aug 10, 2026 · e20c7db

Ran a real backend/subagent decision through its gates: it forced a CompositeBackend split (StateBackend default, StoreBackend routed to /preferences/) that a bare-memory answer left vague, and made 'no subagents, no HITL' an explicit written line instead of an unstated assumption.

Scored on four weighted criteria — install, triggering, output vs. baseline, docs. How scoring works

Installs cleanly 5/5
Triggers reliably 5/5
Output vs. baseline 8/10
Docs & honesty 5/5

What Deep Agents Architecture does

A reference/decision-gate skill for architecting LangChain Deep Agents applications: when to use Deep Agents vs a plain LLM call, which backend (State/Filesystem/Store/Composite) fits a use case, subagent delegation patterns, and middleware stacking order. Triggers on architecture questions like choosing backends, designing subagent systems, or deciding Deep Agents vs alternatives, not on implementation or debugging requests.

How to install Deep Agents Architecture

git clone https://github.com/existential-birds/beagle
cd beagle
mkdir -p ~/.claude/skills
cp -r plugins/beagle-ai/skills/deepagents-architecture ~/.claude/skills/deepagents-architecture

Skills live in ~/.claude/skills/ (global) or .claude/skills/ (per-project). Restart Claude Code after installing.

Commands — how to trigger Deep Agents Architecture

/deepagents-architecture Decision gates for Deep Agents: backend, subagents, middleware, HITL, checkpointing.

It also activates on plain-language prompts like these:

Should I use Deep Agents or just call the LLM directly here?
Help me design a subagent system for my LangGraph deep agent
What backend should I use, StateBackend or FilesystemBackend?

Frequently asked questions

Is the Deep Agents Architecture skill free?: Yes. The skill itself is free from existential-birds/beagle. SkillProof publishes the install command and an independent test verdict at no cost.
Does Deep Agents Architecture work with Claude Code?: We tested it with Claude Code 2.x (agent harness) on Jul 14, 2026. Verdict: Tested · Works. Ran a real backend/subagent decision through its gates: it forced a CompositeBackend split (StateBackend default, StoreBackend routed to /preferences/) that a bare-memory answer left vague, and made 'no subagents, no HITL' an explicit written line instead of an unstated assumption.
What is the Deep Agents Architecture SkillProof Score?: 9.2/10 — installs cleanly 5/5, triggers reliably 5/5, output vs. baseline 8/10, docs & honesty 5/5.
How do I install Deep Agents Architecture?: Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.
Can I use Deep Agents Architecture with Cursor, Copilot, Gemini CLI, Codex or other AI tools?: The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.