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atria-code

v1.0.14

Published

Coding agent CLI with read, bash, edit, write tools and session management

Downloads

4,009

Vulnerabilities

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Links

Git

Maintainers

nerslmnerslm

Keywords

coding-agentaillmclituiagent

Readme

atria

atria is a terminal coding agent. You give it a task in plain language; it reads files, runs shell commands, edits code, and writes new files in your working directory, asking for permission before mutating anything. It keeps a minimal, extensible core — TypeScript extensions, skills, prompt templates, and themes — and ships the product features on top as built-in extensions: a permission system, in-process subagents with workflow orchestration, an MCP client, web tools, an opt-in todo list with a task panel, and hierarchical .atria configuration.

atria runs in four CLI modes: interactive (TUI), print, JSON event stream, and RPC over stdin/stdout. The source workspace also exposes an SDK for embedding in Node.js applications; the published npm package contains the native CLI only.

Highlights

  • Permissions - four modes (default, accept-edits, plan, yolo); confirmation dialogs for shell commands, file mutations, subagents, and MCP tools; persistent allow/deny rules like bash(git push *); Alt+M cycles modes. See docs/permissions.md.
  • Subagents - delegate work to background agents (single, parallel, or chained), running in-process for fast startup; fork the parent conversation; continue finished agents; agent definitions in agents/ directories. See docs/subagents.md.
  • Workflows - deterministic JS orchestration scripts running many subagents in a sandbox, with phases, budgets, journaling, and resume. See docs/workflows.md.
  • MCP client - stdio and streamable HTTP servers via project .mcp.json and global ~/.atria/mcp.json; /mcp for status. See docs/mcp.md.
  • Web tools - web_fetch (URL to markdown) and web_search. See docs/tools.md.
  • Task tracking - an opt-in todo_write list (ATRIA_ENABLE_TODO_TOOLS=1) rendered above the editor, and a task panel showing running background work.
  • Interactive TUI - mouse support (click, drag-select, scroll), session tree navigation, theming, message queueing while the agent works, and ephemeral /btw side questions that do not alter the main conversation.
  • Hierarchical project resources - skills, prompts, themes, extensions, agents, and workflows load from ~/.atria plus .atria/ in the working directory and every ancestor directory; nearest wins name conflicts. Every hierarchical .atria/ATRIA.md is concatenated into project context. Settings, system-prompt files, and MCP configuration use narrower scopes documented in Configuration Layout.
  • Sessions - JSONL session files with in-place branching (/tree, /fork, /clone) and automatic context compaction. See docs/sessions.md.
  • Extensible - custom tools, commands, event handlers, and UI via TypeScript extensions; reusable skills and prompt templates; custom themes. See docs/extensions.md.

Installing and running atria

Install the published native CLI from npm (Node.js >= 22.19.0):

npm install -g atria-code
atria

For development, run directly from a source checkout:

cd /path/to/atria-code
npm install --ignore-scripts
./dev.sh

See docs/quickstart.md for installation details, source development, first-start project trust, and authentication (/login or provider API-key environment variables such as ANTHROPIC_API_KEY).

Documentation

Full index: docs/index.md

Start here

  • Quickstart - install or run from source, authenticate, first session.
  • Using atria - interactive mode, slash commands, mouse, CLI reference.

Features

Configuration

Extending & internals

Platform setup: Windows | Termux | tmux | Terminal setup | Shell aliases

Fork lineage

atria is a fork of earendil-works/pi. It retains pi's layered architecture — atria-tui (terminal UI), atria-ai (LLM providers and streaming), and atria-agent (the agent loop) — plus its extension model. Most atria product features live as built-in extensions in this package (src/core/builtin-extensions/); lower layers change only when terminal behavior, provider protocol normalization, or agent-loop semantics belong there. See docs/architecture.md.

License

MIT