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rio

Rio is a fully autonomous, one-shot coding agent. It has no built-in interactive TUI, no conversation history, no human steer in the middle and no follow-up turns. Start a task and Rio runs until the task completes or aborts.

Getting Started

Install via uv:

uv tool install rio

Usage

Login to your preferred providers:

  • rio login anthropic
  • rio login github-copilot
  • rio login codex
  • ...

Run a adhoc task:

rio run "Fix gh issue 123."

Rio keeps its State in SQLite and executes independent Python scripts through uv. Committed work survives restart; interrupted scripts return UnknownExecution for inspection. See Architecture.

Run a predefined workflow:

rio run task.md

The workflow is to write the task in a Markdown file, then run Rio against it.

You can add a short instruction when invoking it:

uv run rio run "Follow feature.md, run the tests, and finish the implementation"

Use --provider NAME --model MODEL to choose a provider and a model.

Rio prints a compact human transcript by default. Use --output json for one JSON event per line. Each human-mode run prints a session id; continue it with rio run --resume SESSION_ID. Start a new run for a new task.

Documentation

See the documentation for tutorials, guides, command-line reference, and an explanation of Rio's architecture.

Development

uv run pytest
uv run ruff check .

To run the Lean 4 verification, install elan and build the pinned toolchain from the repository root:

cd tests/lean && lake build

See the Lean behavior models for their scope and limits.

  • rio.ai streams model responses from multiple providers.
  • rio.agent owns SQLite state, immutable cells, workers, and recovery.
  • rio.coding supplies provider configuration, credentials, and MCP clients.
  • rio.cli runs coding tasks.

Metadata

Release files for rio 0.8.1

For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.

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Source distribution for rio 0.8.1
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rio-0.8.1.tar.gz 465.7 kB Details

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Table of built distributions (wheels) for rio 0.8.1
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rio-0.8.1-py3-none-any.whl Python 3 none any Details

Total release size: 834.6 kB

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0.9.1

2 release files

0.9.0

2 release files

0.8.2

2 release files

This release

0.8.1 This release

2 release files

0.8.0

2 release files

0.7.1

2 release files

0.7.0

2 release files

0.6.3

2 release files

0.6.2

2 release files

0.6.1

2 release files

0.6.0

2 release files

0.5.0

2 release files

0.4.5

2 release files

0.4.4

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0.4.3

2 release files

0.4.2

2 release files

0.4.1

2 release files

0.4.0

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0.3.2

2 release files

0.3.1

2 release files

0.3.0

2 release files

0.2.9

2 release files

0.2.4

2 release files

0.2.3

2 release files

0.2.2

2 release files

0.2.1

2 release files

0.2.0

0.1.0

2 release files

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