cd /news/ai-agents/pi-s-agentharness-from-an-in-process… · home topics ai-agents article
[ARTICLE · art-91769] src=github.com ↗ pub= topic=ai-agents verified=true sentiment=· neutral

Pi's AgentHarness: From an In-Process Loop to a Durable Runtime

Pi's AgentHarness has evolved from an in-process loop to a durable runtime, as detailed in the project's documentation. The open-source repository 'pi' by earendil-works, which has 87.2k stars and 10.8k forks, includes specs for agent-harness-spec.md, harness-v2.md, harness-v3.md, and a telemetry-schema.md, indicating a structured progression in the harness's design. This evolution aims to provide a more robust and persistent execution environment for AI agents, addressing the limitations of earlier in-process approaches.

read2 min views1 publishedAug 11, 2026
Pi's AgentHarness: From an In-Process Loop to a Durable Runtime
Image: source

Skip to content Navigation Menu Appearance settings Platform AI CODE CREATION GitHub Copilot Write better code with AI GitHub Copilot app Direct agents from issue to merge MCP Registry Integrate external tools DEVELOPER WORKFLOWS Actions Automate any workflow Codespaces Instant dev environments Issues Plan and track work Code Review Manage code changes Code Quality Enforce quality at merge APPLICATION SECURITY GitHub Advanced Security Find and fix vulnerabilities Code security Secure your code as you build Secret protection Stop leaks before they start EXPLORE Why GitHub Documentation Blog Changelog Marketplace View all features Solutions BY COMPANY SIZE Enterprises Small and medium teams Startups Nonprofits BY USE CASE App Modernization DevSecOps DevOps CI/CD View all use cases BY INDUSTRY Healthcare Financial services Manufacturing Government View all industries View all solutions Resources EXPLORE BY TOPIC AI Software Development DevOps Security View all topics EXPLORE BY TYPE Customer stories Events & webinars Ebooks & reports Business insights GitHub Skills SUPPORT & SERVICES Documentation Customer support Community forum Trust center Partners View all resources Open Source COMMUNITY GitHub Sponsors Fund open source developers PROGRAMS Security Lab Maintainer Community Accelerator GitHub Stars Archive Program REPOSITORIES Topics Trending Collections Enterprise ENTERPRISE SOLUTIONS Enterprise platform AI-powered developer platform AVAILABLE ADD-ONS GitHub Advanced Security Enterprise-grade security features Copilot for Business Enterprise-grade AI features Premium Support Enterprise-grade 24/7 support Pricing Type / to search Sign up Appearance settings You signed in with another tab or window. Reload to refresh your session. You signed out in another tab or window. Reload to refresh your session. You switched accounts on another tab or window. Reload to refresh your session. Dismiss alert {{ message }} Uh oh! There was an error while . Please reload this page . earendil-works / pi Public Notifications You must be signed in to change notification settings Fork 10.8k Star 87.2k Code Issues 86 Pull requests 26 Discussions Actions Projects Security and quality 4 Insights Additional navigation options Code Issues Pull requests Discussions Actions Projects Security and quality Insights Files Expand file tree main Breadcrumbs pi / packages / agent / docs / Copy path Directory actions More options More options Directory actions More options More options Latest commit History History History main Breadcrumbs pi / packages / agent / docs / Copy path Top Folders and files Name Name Last commit message Last commit date parent directory ..

agent-harness-spec.md
agent-harness-spec.md
harness-v2-test-matrix.md
harness-v2-test-matrix.md

harness-v2.md harness-v2.md harness-v3.md harness-v3.md telemetry-schema.md telemetry-schema.md View all files You can’t perform that action at this time.

── more in #ai-agents 4 stories · sorted by recency
── more on @pi 3 stories trending now
sponsored brought to you by zahid.host 4,200+ EU-deployed projects
reading about agents? ship yours in a single git push.

Run your AI side-project on zahid.host

EU-based hosting, git-push deploys, automatic HTTPS, no cold starts. Free tier with a custom domain — perfect for shipping the agent you just read about.

$git push zahid main
Live at https://your-agent.zahid.host
Get free account → Pricing
from €0/mo · no card required
LIVE [news/pi-s-agentharness-fr…] indexed:0 read:2min 2026-08-11 ·