io-harness 0.13.0

A Rust agent harness: run an AI agent from a typed task contract to a verified result. Provider-agnostic (OpenRouter, Anthropic, OpenAI) with fallback between them, multi-file edits with grep/find over a workspace, budgets, classified provider failures with kind-aware retry and backoff, stall detection with a bounded replan, full trace, resumable runs, execution-based verification, a layered permission policy with a human-approval gate, contained sub-agent composition, an OS-native/OS-neutral sandbox (macOS sandbox-exec, Linux namespaces, portable floor; Windows wall-clock only) isolating model-produced code per run, durable checkpoint/resume for unattended runs, an MCP client (stdio and streamable HTTP), a deny-by-default network egress policy, budget-aware context assembly that compacts superseded observations and re-reads what a later write invalidated, and durable cross-run memory keyed to the workspace. Embeddable in-process.
Documentation
# Contributor Covenant Code of Conduct

## Our Pledge

We as members, contributors, and leaders pledge to make participation in the
**IO Harness** community a harassment-free experience for everyone, regardless
of age, body size, visible or invisible disability, ethnicity, sex
characteristics, gender identity and expression, level of experience, education,
socio-economic status, nationality, personal appearance, race, religion, or
sexual identity and orientation.

We pledge to act and interact in ways that contribute to an open, welcoming,
diverse, inclusive, and healthy community.

## Our Standards

Examples of behavior that contributes to a positive environment:

- Demonstrating empathy and kindness toward other people
- Being respectful of differing opinions, viewpoints, and experiences
- Giving and gracefully accepting constructive feedback
- Accepting responsibility and apologizing to those affected by our mistakes
- Focusing on what is best for the overall community

Examples of unacceptable behavior:

- The use of sexualized language or imagery, and sexual attention or advances
- Trolling, insulting or derogatory comments, and personal or political attacks
- Public or private harassment
- Publishing others' private information without explicit permission
- Other conduct which could reasonably be considered inappropriate

## Enforcement

Instances of abusive, harassing, or otherwise unacceptable behavior may be
reported to the maintainers at **<project-contact-email>**. All complaints will be reviewed and
investigated promptly and fairly. Maintainers will respect the privacy and
security of the reporter of any incident.

## Attribution

This Code of Conduct is adapted from the
[Contributor Covenant](https://www.contributor-covenant.org), version 2.1.