# strands-agents/harness-sdk

> Open-source Python and TypeScript SDK for building and running AI agents: agent loop, tools, MCP, memory, multi-agent patterns and tracing in one package. Runs in your process with no hosted control plane and supports multiple model providers.

- Magnitude: 3.3 out of 10 — Steady
- Stars: 8,716 total · +21 stars measured 2026-10-07, 00:24–12:40 UTC, ≈ 36 by evening
- Star trust: star growth looks organic
- Category: AI agents · Language: Python · License: Apache-2.0 · Created: 2025-05-14 · Last push: 2026-10-06
- GitHub: https://github.com/strands-agents/harness-sdk · Homepage: http://strandsagents.com/ · Page: https://gitnova.dev/en/r/strands-agents/harness-sdk
- GitNova flagged it 14 hours before it took off on Hacker News.

## Useful for

- Build an agent with a calculator and other tools in Python or TypeScript
- Connect an MCP server and call its tools from the agent
- Cap the agent loop with turn and token limits and enable tracing

## Why it’s here

- Star-counter measurements on 2026-10-07 (UTC), 00:24–12:40: 8695 → 8716 stars (+21). This is the change over that interval.
- Estimated end-of-day forecast: about +36 stars, using observed gains and the previous day.
- Interest is fading: the two-day pace is 47% of the previous week and a half.
- Hacker News: “Strands Decider 2B: a small, open-source, decision model” — 215 points, 10 h ago.

## 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: 1,333
- Issues and pull requests: 4,736
- Watchers: 55
- Average over the last week: 22 per day
- Usual pace: 76 per day
- Latest release: python/v1.58.1 (2026-10-06)

## Stars per day, last 30 days (oldest → newest, today is partial)

2026-10-04 … 2026-11-02: 18, 18, 24, 15, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None

## Magnitude by day, last 14 days

09-24 7.4, 09-25 7.2, 09-26 5.1, 09-27 3.3, 09-28 3.1, 09-29 3.1, 09-30 3.1, 10-01 2.4, 10-02 2.5, 10-03 2.3, 10-04 2.0, 10-05 2.1, 10-06 1.9, 10-07 3.3

## Hacker News

- Strands Harness — 148 points, 96 comments: https://news.ycombinator.com/item?id=49817289

---

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 2026-10-07 12:58 UTC, updated every 30 minutes.