Feature Matrix

AI coding agents feature matrix. I provide to tools which i'm using daily or used

CLI Agents

Features	Claude Code	OpenCode	Codex	Droid	Gemini
Performance	Medium	Fast	Fast	Medium	Medium
Debug agent	Yes	No	No	No	-
Extensions	VSCode, JetBrains	-	VSCode, JetBrains	-	VSCode
IDE Integration	VSCode, Zed	VSCode	VSCode, Zed	VSCode, Zed	VSCode, Zed
Source code	Closed	FOSS	FOSS	Closed	-
Mode
Orchestrator mode	No	No	No	No	No
Plan mode	Yes	Yes	Yes	Yes	No
Act mode	Yes	Yes	Yes	Yes	Yes
Ask mode	Yes	Partial	Partial	Partial	No
Chat mode	Plan mode	Plan mode	Read-only	Plan mode	No
To-Do Prepare	Yes	No	No	Yes	No
Ralph / METR	No	No	/goal	/missions	No
MCP	Yes	Yes	Yes	Yes	Yes
MCP Lazy/Search	Yes 1	No	Yes 1, 2, 3	Yes 1	No
Tools
Web search	Yes	No	Yes	Yes	Yes
Web fetch	Yes	Yes	Yes	Yes	Yes
Tool search	Yes 1	No	Yes 1, 2, 3	Yes 1	No
Advisor	A/B 1	No	No	No	No
Parallel calling	Yes 1	Yes ?	GPT-5.4+	No	No
Skills	Yes	Yes	Yes	Yes	Yes
Skills Lazy/Search	Yes	Yes	Yes	Yes	Yes
Skills Commands	Yes	No	No	No	No
.agents Unified	No	Yes	Yes	No	No
Features
AGENTS.md	CLAUDE.md	Yes	Yes	Yes	GEMINI.md
Plugins	Yes	Yes	No	Yes	Extensions
Hooks	Yes	No	No	Yes	Yes
LSP	Yes	Yes	No	No	No
Hierarchical Tree	Yes	No	No	No	?
Subagents	Yes	No	Yes	No	No
Swarm/Teams	Yes	No	No	No	No
Customization
Custom models	Partial	Yes	Partial	Partial	No
BYOK	Vendor	Yes	Vendor	Yes	Vendor
Security
Sandbox	Yes	No	Yes	No	Yes

Extensions

Features	Claude Code	Cline	Kilo Code	Codex	Github Copilot	Gemini Code Assist
Performance	Slow	Medium	Medium	Fastest	Medium	Medium
Debug extension	-	-	-	-	-	-
Available	VSCode, Zed	VSCode, JetBrains	VSCode, JetBrains	VSCode, Zed	VSCode, JetBrains, Zed	VSCode, Zed
Source code	Closed	FOSS	FOSS	Closed	FOSS	-
Mode
Orchestrator mode	No	No	Yes	No	No	No
Plan mode	Yes	Yes	Yes	Yes	Yes	No
Act mode	Yes	Yes	Yes	Yes	Yes	Yes
Ask mode	Yes	No	Partial	Partial	Partial	No
Chat mode	Plan mode	Plan mode	Plan mode	Read-only	Plan mode	No
To-Do Prepare	Yes	-	Yes	No	Yes	No
MCP	Yes	Yes	Yes	Yes	Yes	Yes
MCP Lazy/Search	Yes 1	No	No	Yes 1, 2, 3	Yes	No
Tools
Web search	Yes	Partial	No	Yes	Yes	Yes
Web fetch	Yes	Partial	No	Yes	Yes	Yes
Skills	Yes	Yes	Kilo Rules	Yes	Yes	Yes
Skills Lazy/Search	Yes	Yes	Yes	Yes	Yes	Yes
Skills Commands	Yes	No	No	No	No	No
.agents Unified	No	No	No	Yes	Yes	No
Features
AGENTS.md	CLAUDE.md	Yes	Yes	Yes	Yes	GEMINI.md
Plugins	Yes	No	No	No	No	Extensions
Hooks	Yes	No	No	No	No	Yes
LSP	Yes	No	No	No	No	No
Hierarchical Tree	Yes	Yes	Yes	No	No	?
Subagents	Yes	No	No	Yes	No	No
Swarm/Teams	Yes	No	No	No	No	No
Customization
Custom models	Partial	Yes	Yes	Partial	No	No
BYOK	Vendor	Yes	Yes	Vendor	Partial	Vendor
Security
Sandbox	Yes	No	No	Yes	No	Yes