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v1.7.0
Agent Harness v1.7.0
Highlights
- GitHub Copilot CLI native plugin preview: marketplace packaging, the shared 20-agent/six-skill source, and SessionStart context from the canonical policy and skill index.
- Configurable per-task Pi model tiers in
agent/roles.json, with tier-only package declarations, explicit defaults, ordered fallbacks and task selection. Omission retains each role's configured default model and effort. - Token-efficient orchestration guidance and regression fixes for policy/source boundaries.
- Separate Pi and Copilot CLI installation instructions, and curated durable lessons in the existing knowledge documentation.
Installation
Install separately for each host; see the repository README for the full steps and limits.
copilot plugin marketplace add alsevilla/agent-harness
copilot plugin install agent-harness@alsevilla
Verification and boundaries
The preparation full Bun suite passed: 585 passed, 0 failed, 3 skipped. The final README release-label change was followed by 9 passing focused package checks. This is a GitHub source release; no npm publication, deployment or generated package assets.
Copilot remains a limited native preview, not Pi runtime parity. Pi extensions, model-tier/fallback controls, grants and job lifecycle are not ported to Copilot. Remote marketplace installation, all-role live-host execution, Node 22.19 validation and measured token savings were not established. QMD refresh remains separate from saving knowledge.