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ollie

Ollie is an AI agent runtime. A single binary (olliesrv) exposes agent sessions over a single surface: a 9P2000 filesystem. The core is deliberately minimal; capabilities come from composing small pieces — tool executables, skill files, metadata sidecars — rather than building a monolithic framework.

Building

git clone --recurse-submodules https://git.lneely.de/lkn/ollie.git
cd ollie
just

Requires just:

cargo install just

See doc/usage.md for usage instructions.

Configuration

Backends: `~/.config/ollie/backends.conf`

# Default backend for new sessions
backend = openrouter

[openrouter]
key = sk-or-v1-...
model = qwen/qwen3-235b-a22b

[anthropic]
key = sk-ant-...
model = claude-sonnet-4-20250514

[ollama]
host = http://localhost:11434
model = qwen3:latest

[kiro]
# key auto-detected from Kiro CLI if unset

Each section configures a backend. The session selects which backend to use via the backend top-level setting or per-agent backend= in cfg. See data/backends.conf for the full template.

Everything lives under $XDG_CONFIG_HOME/ollie/ (default: ~/.config/ollie/) — tools in tools/, memory in memory/, agents in agents/, prompts in prompts/, skills in skills/.

What you can do

Capability	How
CLI	`o` — unified namespace CLI: `read`, `write`, `ls`, `ctl`, `prompt`, `tui`, `env`, `generate`
Terminal TUI	`o tui` — tmux layout, no widgets
One-shot LLM	`o generate "explain monads"` or `echo "prompt" \| o generate`
Run an agent	Create a session + agent via 9P — then connect with any frontend (ellie, KDE (GUI/KRunner/Kate), `o tui`)
Remote execution	Set `remote=user@host` in session config
Agents	Write a JSON config in `data/agents/` with agent prompt in `data/prompts/`
Tools	Drop an executable + `.meta` in `~/.config/ollie/tools/` — load at runtime via `/tool_load`
Domain skills	Load markdown skill modules at runtime

Repository layout

Single Go module with one Git submodule (kde).

Directory	Language	Description
`agent/`	Go	Agent loop, history, prompt resolution, context compaction
`backend/`	Go	LLM providers (Anthropic, OpenAI, Ollama, Gemini, Copilot, CodeWhisperer)
`toolsrv/`	Go	Tool server, dynamic tool dispatch, sandboxed execution, remote execution
`tools/lsp/`	Go	LSP bridge daemon + client library (gopls, clangd, intelephense)
`session/`	Go	Session lifecycle, config, persistence
`fs/`	Go	9P filesystem tree (EDSL-declared namespace, ctl dispatch)
`fsedsl/`	Go	Filesystem declaration EDSL (generic, reusable)
`bypass/`	Go	Bypass broker (sandbox escape approval)
`sandbox/`	Go	Landlock sandbox config
`lib9p/`	Go	9P protocol library + native C client
`cmd/olliesrv/`	Go	The main binary
`cmd/ollie-9p/`	Go	9P client CLI
`cmd/ollie-remote/`	Go	Remote execution binary
`kde/`	C++/Qt6	KDE plasmoid, GUI, Kate plugin, KRunner (submodule)
`data/agents/`	JSON	Agent configs
`data/prompts/`	Markdown	System prompt templates
`data/tools/`	Mixed	Tool executables (scripts + compiled) + `.meta` sidecar files
`data/skills/`	Markdown	Domain knowledge modules
`doc/`	Markdown	Architecture docs, usage guide

Architecture

graph TB
    subgraph "Frontends (all use o / ollie-9p)"
        TUI["o tui<br>(tmux + o read/ctl)"]
        KDE[KDE GUI<br>ollie-9p native client]
        KATE[Kate plugin]
        EMACS[Emacs<br>ellie.el · ollie-9p]
        ACME[Plan 9 acme]
        SCRIPTS[Shell scripts<br>o read · o ctl · o write]
    end

    subgraph "o CLI"
        O["o<br>path resolution · ctl dispatch<br>prompt REPL · TUI composition"]
    end

    subgraph "olliesrv"
        P9[9P Filesystem<br>session/ namespace]
        SESS[session.Session<br>tool server conn · persistence]
        AG[agent.Agent<br>loop · compaction<br>prompt assembly]
        TOOLS[toolsrv.Server<br>dynamic dispatch · sandbox]
    end

    subgraph "LLM Backends"
        OLL[Ollama]
        OAI[OpenAI / OpenRouter]
        ANT[Anthropic]
        COP[Copilot]
        KIRO[Kiro]
    end

    subgraph Execution
        EXEC[Tool Scripts<br>loaded via ctl<br>· shell, reasoning_think<br>· file_*, lsp_*, memory_*<br>· gui_*, subagent_*]
    end

    TUI & SCRIPTS & ACME --> O
    O --> P9
    KDE & KATE & EMACS --> P9
    P9 --> SESS
    SESS --> AG
    SESS -->|shared RPC conn| TOOLS

    AG -->|streaming| OLL & OAI & ANT & COP & KIRO

    TOOLS --> EXEC

olliesrv exposes the agent runtime over a single surface: a 9P2000 filesystem. o is the CLI layer that all text-based frontends build on — it handles path resolution, context, and ctl dispatch. The KDE GUI and Kate plugin use ollie-9p (the native 9P client) directly for performance. For a deep dive into the filesystem, see doc/9p.md.

Credits

Plan 9 from Bell Labs — for an interesting system
@9fans — for the Plan 9 port
Suckless — for articulating good software development principles
@simonfxr — for a solid agent baseline to "borrow" from
@aws — for a solid open-source agent implementation

License

GPLv3

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