# agent-substrate/substrate > Agent Substrate is a secure-by-default agent execution runtime built on Kubernetes that multiplexes many "actors" onto a small pool of workers with sub-second suspend/resume and isolation via microVMs and gVisor. It is meant for running agent workloads at scale, not for building them. - Magnitude: 2.2 out of 10 — Steady - Stars: 6,049 total · +18 stars measured 2026-11-03, 00:35–19:44 UTC, ≈ 22 by evening - Star trust: star growth looks organic - Category: AI agents · Language: Go · License: Apache-2.0 · Created: 2026-05-13 · Last push: 2026-11-03 - GitHub: https://github.com/agent-substrate/substrate · Homepage: https://ate.dev/ · Page: https://gitnova.dev/en/r/agent-substrate/substrate ## Useful for - Run hundreds of stateful agents on a few pods while preserving state across sessions - Deploy sandboxed MCP servers as Substrate actors to provide secure model tools - Set up high-density coding-agent environments that keep filesystem state between runs ## Why it’s here - Star-counter measurements on 2026-11-03 (UTC), 00:35–19:44: 6031 → 6049 stars (+18). This is the change over that interval. - Estimated end-of-day forecast: about +22 stars, using observed gains and the previous day. - Recent forks include notable developers: @den-vasyliev (251 followers). ## Star trust Star growth looks organic. Star-trust labels are heuristics based on the repository’s behavior, not a check of every stargazer. ## Numbers - Forks: 676 - Issues and pull requests: 3,579 - Watchers: 28 - Average over the last week: 25 per day - Usual pace: 59 per day - Stars in the last hour (measured): 2 - Latest release: v1.0.0-rc.1 (2026-10-29) ## Stars per day, last 30 days (oldest → newest, today is partial) 2026-10-05 … 2026-11-03: 73, 70, 96, 94, 85, 80, 90, 88, 103, 91, 74, 98, 96, 95, 85, 73, 29, 26, 22, 18, 36, 26, 54, 49, 27, 18, 15, 24, 20, 18 ## Magnitude by day, last 14 days 10-21 2.7, 10-22 2.2, 10-23 2.3, 10-24 2.0, 10-25 1.9, 10-26 2.1, 10-27 2.1, 10-28 2.9, 10-29 3.1, 10-30 2.7, 10-31 2.5, 11-01 2.5, 11-02 2.4, 11-03 2.5 ## Similar by description 1. **kubernetes-sigs/agent-sandbox** — 1.5 · Steady · AI agents · Go · +8 stars measured 2026-11-03, 00:37–19:48 UTC, ≈ 10 by evening A Sandbox CRD and controller for Kubernetes that manages isolated stateful pods with persistent storage and stable identity, aimed at AI agent runtimes and RL workloads. Full card: https://gitnova.dev/en/r/kubernetes-sigs/agent-sandbox.md 2. **perplexityai/SPACE** — 1.3 · Cooling · DevOps & infrastructure · Rust · +0 stars measured 2026-11-03, 00:37–19:49 UTC, ≈ 0 by evening A platform for running code in isolated Firecracker microVMs. Applications use its HTTP API to create Linux environments, execute commands, and manage sandbox lifecycles. Full card: https://gitnova.dev/en/r/perplexityai/SPACE.md --- Magnitude (0–10) measures how fast and how unusually interest in a repository is growing right now. It is not a quality score. Days are UTC. “So far today” is a fact; “expected by the end of the day” is a forecast. Summaries and use cases are written by an LLM (DeepSeek V4.1 Flash) from the README and may be inaccurate: verify specific claims (benchmarks, speed, hardware) in the repository itself. Data as of 2026-11-03 19:53 UTC, updated every 30 minutes.