The coding-agent ecosystem
Six zones covering every coding-agent paradigm. Read /systems/agent-execution-systems first if you need the architectural depth on planning loops, tool dispatch, sandbox isolation, and MCP/memory integration. Pair with /frontier/coding-agents for the momentum view.
Autonomous open-source agents
The category leaders by paradigm. OpenHands has the longest track record + most stable production deployment. OpenClaw is the velocity leader (350k+ stars after April 2026 release; foundation governance). Goose is Block's MCP-first contender, lighter and more extensible.
OpenHands
AI-driven development agent that completes engineering tasks end-to-end — branches, code, PRs. v1.6 added a Planning Mode that drafts a plan before executing. Local-LLM-friendly via Ollama, vLLM, and
OpenClaw
Personal AI agent with a local-first gateway architecture. Connects your local LLMs (Ollama, llama.cpp) to the messaging surfaces you already use — WhatsApp, Telegram, Slack, Discord, iMessage, and 20
Goose
Open-source extensible AI agent now governed by the Agentic AI Foundation (AAIF) at the Linux Foundation. Started inside Block (formerly Square). 25+ provider support including Ollama, Ramalama, Docke
Surgical-edit CLI
Different paradigm — git-integrated CLI editor for tight-control workflows. Aider holds this niche; mature, stable, well-loved by developers who want the agent under their command rather than driving the workflow.
IDE-resident agents
Live inside VS Code (or compatible IDE). Cline picked up Roo Code's user base after that project shut down in May 2026 — current frontrunner for autonomous-task IDE agents. Continue covers a broader surface (chat + autocomplete + commands) at the cost of less aggressive autonomous-task quality.
Cline
VS Code extension agent — ~4M installs in 2026. Plan/Act mode, autonomous file edits with diff approval, terminal access. The leading open-source IDE agent.
Continue
Open-source VS Code and JetBrains assistant. Configurable autocomplete + chat + agent modes. Strong with local Ollama backends.
Closed-source flagships
The polished commercial offerings. Claude Code is Anthropic's premium agent; Cursor is the IDE-as-agent product. Both deliver capability ceilings the open-source category can't match yet — but at subscription-tier cost and without self-hostability.
Claude Code
Anthropic's terminal-native coding agent. Tops SWE-bench Verified at 87.6% and SWE-bench Pro at 64.3% in 2026. Deep MCP integration, agentic file editing, and a $20/mo Pro tier are the standout signal
Cursor
Anysphere's AI-native IDE. Forks VS Code with Cursor Tab inline completion, agentic chat, and background agents. Best 'flow' for inline completion in 2026.
MCP-native infrastructure
The MCP servers most coding-agent deployments wire in. Filesystem MCP for file access; Git MCP for repo metadata. Pair with any of the agents above to get the canonical /stacks/local-coding-agent capability surface.
MCP Filesystem Server
Anthropic's reference MCP server for filesystem access. Read, write, search, move, and list files inside a configured allowlist of directories. The canonical example for understanding how MCP tool exp
MCP Git Server
Reference MCP server for local Git repository operations. Status, diff, log, blame, branch listing — read-side operations against a checked-out repo without round-tripping to GitHub. Pairs with mcp-se
MCP PostgreSQL Server
Reference MCP server that exposes a Postgres database as a query surface. Read-only by default — but worth flagging that early versions had a SQL-injection class issue where the read-only wrapper coul
Shutdown + migration tracker
The agent ecosystem remains volatile. Roo Code shut down May 15, 2026 — listed here as a deliberate ecosystem-volatility signal. Migration target: Cline. Bet infrastructure on stable upstreams; track the volatile ones.
Best agent stack by goal
Going deeper
- /systems/agent-execution-systems — protocol-engineering depth on the architecture under each of these tools.
- /frontier/coding-agents — the momentum view: who's exploding, who's cooling.
- OpenHands operational review, OpenClaw operational review — the operator-grade L1.5 reviews.
- /stacks/local-coding-agent, /stacks/memory-enabled-agent — canonical deployment recipes.