IsuruMaduranga/harness-engineering-101
- Total stars
- 136
- Today · UTC
- +90since 12:58 UTC
More actions
Harness Engineering 101 — building AI agents from first principles. The LLM is the brain; the harness is the body.
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About the project
A book series explaining how to build AI agents from first principles, treating the LLM as a stateless brain and the harness as the program that manages the conversation array. It grows a ~300-line toy agent in plain Python across 16 chapters.
Useful for
- Read the chapters in order to understand how an agent loop works under the hood
- Run the toy harness from src/harness/ to experiment with tool calls and context budgets
- Build the book locally with mdbook to read it offline with rendered diagrams
README summarized by DeepSeek V4.1 Flash. Details may be inaccurate. Read the original README →
Star growth looks organic. Data as of October 19, 2026, 14:01 UTC.
The star-growth assessment does not verify whether the project is safe to run.
Stars per day
Bars show stars per UTC day; the line is a moving average of available history. Gaps mean missing data, not zero growth. Today's bar is incomplete. Red marks spike days.
Why it’s trending
- Star-counter measurements on 2026-10-19 (UTC), 12:58–13:58: 46 → 136 stars (+90). This is the change over that interval.
- Estimated end-of-day forecast: about +127 stars, using observed gains and the previous day.
- Before this, the repository barely got any stars — about 0 per day.
- The repository is 43 days old and already has 136 stars.
- Hacker News: “Harness Engineering 101: The LLM is the brain, the harness is the body” — 66 points, 1 h ago.
Measured growth: the last 7 completed days
New stars over 7 days: 0.
Daily measurements · UTC
- October 12, 2026
- 0
- October 13, 2026
- 0
- October 14, 2026
- 0
- October 15, 2026
- 0
- October 16, 2026
- 0
- October 17, 2026
- 0
- October 18, 2026
- 0
Largest measured day in the last 30 days: 1 · September 21, 2026. Days with data: 30.
Completed days come from GitHub star history; today and forecasts are excluded from this comparison. History checked: October 19, 2026, 14:01 UTC. Sources and measurement limits →
Three GitHub discoveries in each edition
What they do, why they are gaining interest, and what to check before using them.
Editions at 10:00, 16:00, 22:00 MSK.
Numbers
- Total stars
- 136
- Today
- +90 stars measured 2026-10-19, 12:58–13:58 UTC, ≈ 127 by evening
- Forks
- 3
- Issues and pull requests
- 0
- Watchers
- 1
- Language
- Python
- Created
- September 6, 2026
- Last push
- October 19, 2026
Star trust
Growth looks organic: forks and discussion are in line with active projects, and stars arrive unevenly, the way people give them.
These are heuristics, not a verdict: we judge by the repository’s behavior, not by a list of stargazers.
Hacker News discussions
- Harness Engineering 101: The LLM is the brain, the harness is the body66 points, October 19, 2026
Spotted in
- October 19, 2026Spotted on Hacker News
README badge
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[](https://gitnova.dev/en/r/IsuruMaduranga/harness-engineering-101)