AI Coding Agent
Anthropic's agentic coding tool that plans, writes, and edits code from the terminal; it drives the neo-fortune platform's infrastructure-as-code and data workflows.
Objective
Drive a real codebase from the terminal — read, edit, plan, run, and verify changes with an LLM that has direct access to the filesystem and shell.
Open Source Alternatives
Aider — 8 / 10
The best OSS pair-programming CLI. Bring-your-own-model, git-integrated, excellent UX for surgical edits. The right pick when model choice matters more than agentic ergonomics. Less autonomous than the top-tier proprietary CLIs.
Continue — 7 / 10
Open-source IDE/CLI assistant, model-agnostic and self-hostable. Great fit for teams that need on-prem AI. Smaller ecosystem than the top tools.
Goose — 7 / 10
Block-built model-agnostic agent with a plugin model. OSS, growing. Less polished than top proprietary CLIs but the architecture is interesting.
OpenCode / Roo Code / Cline — 7 / 10
Newer OSS agentic coding tools (CLI and editor extensions). Rapidly evolving; bring-your-own-model is the common selling point.
Managed SaaS Alternatives
Claude Code — 9 / 10
Anthropic’s first-party agentic CLI. Long context, the most mature tool-use posture of any model in 2026, native MCP support, and a strong file-editing protocol. The pick when you want the agent to own a checkout end-to-end. Vendor-tied; experience tracks Claude model quality directly.
Cursor — 9 / 10
IDE-bound agentic editor. The other top of the category, but a different surface. Excellent if your primary work happens in an editor; less good as a terminal-native agent. Subscription-priced.
Codex CLI — 8 / 10
OpenAI-native CLI agent. Strong model under the hood. Younger CLI surface than Claude Code; rapidly catching up.
Gemini CLI — 8 / 10
Google-native terminal agent. CLI is open source but the value comes from the hosted Gemini model. Generous free tier; tool-use sophistication trails Claude Code.
GitHub Copilot CLI — 6 / 10
Inline shell command suggestions. Different scope (shell, not codebase). Useful, but not in the same category as agentic CLIs.
Windsurf — 8 / 10
IDE-bound agentic editor, Cursor competitor. Good model orchestration; smaller community.
Scoring summary
| Tool | Score | Type | Best for |
|---|---|---|---|
| Claude Code | 9 | SaaS (hosted model) | Terminal-native agentic coding (top today) |
| Cursor | 9 | SaaS | IDE-bound agentic editing |
| Codex CLI | 8 | SaaS (hosted model) | OpenAI-native CLI agent |
| Gemini CLI | 8 | SaaS (hosted model) | Google-native, generous free tier |
| Aider | 8 | OSS | OSS pair-programming, BYO model |
| Windsurf | 8 | SaaS | IDE-bound, Cursor alternative |
| Continue | 7 | OSS | Self-hosted IDE/CLI assistant |
| Goose | 7 | OSS | Model-agnostic OSS agent |
| OpenCode / Roo / Cline | 7 | OSS | Newer agentic OSS tools |
| Copilot CLI | 6 | SaaS | Shell command suggestions |
Top in this category
Top OSS pick: Aider. Top SaaS pick: Claude Code (terminal) or Cursor (IDE).
For terminal-driven agentic coding in 2026, Claude Code is the strongest hosted CLI. Aider is the right pick when model choice matters and OSS is a hard requirement. This stack’s pick is the top of its specific subcategory.
Note: Claude Code’s CLI is open source, but the model that makes it useful is a managed API. Listed under SaaS because the value lives in the hosted model.
Work Experience
