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ollie

A Go library for building agentic systems. Provides a sandboxed execute_code tool, a common LLM backend interface, MCP server support, and a skill system for domain-specific capabilities.

Works well with anvillm, which provides a skill system, tool scripts, and multi-agent infrastructure.

The reference frontend is ollie-tui, a terminal UI built on top of this library.

Packages

pkg/agent/         — Core interface, agent loop, session management
pkg/backend/       — Backend interface + implementations (Ollama, OpenAI, Anthropic, Copilot, Kiro)
pkg/config/        — Config struct and loader
pkg/mcp/           — MCP client
pkg/tools/         — Server and Dispatcher interfaces; tool definitions
pkg/tools/execute/ — execute.Server: execute_code, execute_tool, execute_pipe
pkg/tools/file/    — file.Server: file_read, file_write

Install

mk

Copies agent configs to ~/.config/ollie/agents/.

Configuration

Environment: `~/.config/ollie/env`

OLLIE_BACKEND=openai           # ollama | openai | openrouter | anthropic | copilot | kiro (default: ollama)
OLLIE_OLLAMA_URL=              # base URL for Ollama (default: http://localhost:11434)
OLLIE_OPENAI_URL=https://openrouter.ai/api
OLLIE_OPENAI_KEY=sk-or-...
OLLIE_ANTHROPIC_KEY=sk-ant-...
OLLIE_COPILOT_TOKEN=...
OLLIE_KIRO_TOKEN=...           # bearer token or sqlite:// path (auto-detected from Kiro CLI if unset)
OLLIE_MODEL=qwen/qwen3-235b-a22b
OLLIE_TOOLS_PATH=~/.local/share/ollie/tools  # directory for execute_tool scripts

Shell environment variables take precedence over the env file.

Config file: `~/.config/ollie/config.json`

{
  "mcpServers": {
    "my-server": {
      "command": "my-mcp-server",
      "args": [],
      "env": {
        "API_TOKEN": "${API_TOKEN}"
      }
    }
  },
  "hooks": {
    "agentSpawn": "notify-send ollie started",
    "userPromptSubmit": "",
    "stop": ""
  }
}

MCP server env values support ${VAR} expansion from the parent environment.

Sandbox config: `~/.config/ollie/sandbox.yaml`

Controls landrun sandboxing for execute_code. Created automatically with defaults on first run. See the file header for documentation.

Tools

Five built-in tools across two servers:

execute_code — run inline shell code in a sandbox
execute_tool — run a named tool script from OLLIE_TOOLS_PATH (default: ~/.local/share/ollie/tools)
execute_pipe — chain steps as a pipeline
file_read — read a file with line numbers (required before file_write)
file_write — write or patch a file by line range

MCP server tools are discovered at startup and available alongside the built-ins.

Each tool server exports a Decl function that returns a func() tools.Server factory. execute.Decl(workdir) accepts a working directory used as cmd.Dir for sandboxed commands and for {CWD} expansion in the sandbox config; pass "" to fall back to os.Getwd(). Frontends register servers by passing Decl results to tools.NewDispatcherFunc. Adding a new tool means implementing tools.Server, exporting a Decl function, and registering it — no frontend changes required.

Skills

Skills are domain-specific tool scripts and knowledge discoverable at runtime:

{"tool": "discover_skill.sh", "args": ["keyword"]}
{"tool": "load_skill.sh",     "args": ["skill-name"]}

License

GPLv3

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