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Compare/ECA vs ACP Client for VS Code

ECAvsACP Client for VS Code

Generated from the two spec rows. Green marks the better value where a spec has a clear direction. Everything else is just different.

ECA
Editor Code Assistant · IDE extension
#46OSSMCP
Panel
7.3
4 spec wins
Reliability
7.2
Usefulness
6.2
Cost
8.7
Longevity
7.0

“It reaches a frontier model by talking to your editor over standard input and output, which is the most 1970s plumbing on this board.”

ACP Client for VS Code
Jun Han · IDE extension
#41OSS
Panel
7.3
1 spec wins
Reliability
7.0
Usefulness
6.8
Cost
8.2
Longevity
7.0

“It supports eleven coding agents, one at a time, which is a fair summary of the last two years.”

Spec by spec

SpecECAACP Client for VS Code
Architecture
CategoryIDE extensionIDE extension
Runslocallocal
Platformsmacos, linux, windowsmacos, linux, windows
Context windownot documentednot documented
Protocols
MCP clientYesNo
MCP serverNoNo
Capabilities
Runs terminal commandsNoYesThe extension runs the commands the agent requests and displays their output; the agent loop itself lives in the ACP agent.
Multi-file editsYesYes
Git operationsNoNo
Browser controlNoNo
Sandboxed executionNoNo
Multi-agent orchestrationYesECA lets you configure multiple agents and subagents, each with its own model, tools and behaviour. NoEleven agents are pre-configured but only one is active at a time, with quick switching between them.
Headless / CI modeNoNo
Models
BackboneOpenAI, Anthropic, GitHub Copilot, OllamaGitHub Copilot, Claude Code, Gemini CLI, Qwen Code, Auggie CLI, Qoder CLI, Codex CLI, OpenCode, OpenClaw, Kiro CLI, Hermes Agent
Bring your own modelYesYes
Local modelsYesNo
Cost
Pricing modelbyokbyok
Starts at$0/mo$0/mo
Free tierYesYes
Bring your own keyYesYes
Openness
Open sourceYesYes
LicenseApache-2.0MIT
GitHub stars1,019391

Which one would each critic pick

CriticECAACP Client for VS CodePick
El Juez——not enough reviews
El Amigo7.37.5ACP Client for VS Code — Pick it if you keep wanting to try the new thing; pick a vendor's own extension if you have already decided and you like their panel.
El Crítico6.57.0ACP Client for VS Code — It serves the agent's file writes against your workspace and runs the commands it asks for under a configurable auto-approve policy.
El Profesor7.87.8no preference
La Inversora6.36.8ACP Client for VS Code — The value here is borrowed: it is worth exactly as much as the protocol is adopted, and 372 stars for a free extension is respectable and unmonetisable.
La Jefa7.37.3no preference
El Hacker8.57.3ECA — Apache-2.0, a local Ollama login sits beside the hosted ones, and MCP supplies resources and prompts rather than only tools, which is the part most clients skip.

Picks are derived from each critic's own scores. Humans vote on matchups on the duels page.

Want a third column? The compare tool handles any two agents. Three-way comparisons are on the roadmap once the spec rows are all verified.