janestreet / magic-trace
magic-trace collects and displays high-resolution traces of what a process is doing
- Stars
- 6,371 stars
- Forks
- 225 forks
- Language
- OCaml
- License
- MIT
- Created
- Jan 26, 2022
- Last push
- Oct 19, 2026
- Updated
- Nov 11, 2026
Why these Tags: an agent read the README and quoted it
- Profiler from the readme:
traces *every function call* with ~40ns resolution, and
An agent gave these Tags from the fixed Tag list in the AwesomeRepos source code. A code check kept each Tag only when its quote is in the text. A wrong Tag? Report an error with the form at the end of this page.
Admitted to the Repository Index on Nov 10, 2026: 6,356 stars on 2026-11-10.
Star History
186 days recorded, May 10, 2026 – Nov 11, 2026 (UTC). Net change +1,085 stars.
The star count of each day is the latest count minus the net stars of the later days.
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Star History chart
[](https://awesomerepos.com/janestreet/magic-trace) Badge
[](https://awesomerepos.com/janestreet/magic-trace) Timeline
It gained stars on 152 of the 186 days recorded since May 10, 2026.
Its largest 7 days were May 18, 2026 to May 24, 2026: 691 stars.
In the 30 days to Nov 11, 2026 it got 86 stars, 153% more than in the 30 days before.
It had 5,286 stars before May 10, 2026 and has 6,371 stars now: 3,629 fewer than 10,000.
- Created on the Repository Host
- Release v1.2.0
- Release v1.2.1
- Release v1.2.2
- Release v1.2.3
- Release v1.2.4
- +160 stars in one day
- Largest star day recorded: +355 stars
- +79 stars in one day
- Latest push
- Entered the Repository Index: 6,356 stars on 2026-11-10
The timeline comes from the creation date and the releases on the Repository Host, the Admission, the Star History, and the Observations. Star milestones show only when the Star History records the day. The list shows up to 5 stable releases from the latest 10 releases recorded. When none of them is stable, one item counts the pre-releases. On the chart of net stars each day, a solid line marks each recorded release.
Forks and pushes
From 2 Observations, Nov 11, 2026 – Nov 12, 2026. Forks +2. AwesomeRepos saw a new push on 0 of 1 days.
- Nov 12, 2026: no new push
A filled day: the last push time changed since the Observation before it.
Health facts
Measured facts in four separate dimensions, each with a date and a source. AwesomeRepos does not add them into one score. AwesomeRepos reads the weekly commits, the changelog, and the community files each week for the 5,000 visible repositories with the most stars and for each rising repository. How AwesomeRepos defines each check
Copies a prompt for a coding agent. It has 1 task for the maintainers of janestreet/magic-trace.
Improve the Health Facts of the GitHub repository janestreet/magic-trace. AwesomeRepos measures facts about how a repository is maintained, released, secured, and documented. Its page for this repository is https://awesomerepos.com/janestreet/magic-trace. A change to the repository can improve each of the item below. Each item gives the measured fact or score, and a task. 1. A release in the last 365 days Fact: Newest release v1.2.4 on 2025-04-13, 577 days ago. 0 releases in the last 365 days. Rule: The newest published GitHub release (a pre-release counts; a draft does not) is 365 days old or less. A repository that publishes only tags, or only to a package registry, has no GitHub release. The release refresh reads the 10 newest releases after each push to the repository, and at least each 30 days. The index refresh reads the date of the last push each day. Task: Prepare a release, but do not publish it. Find the changes since the newest release, propose the next semantic version and the release notes, and ask me to publish the GitHub release. If nothing changed since the newest release, skip this item. If the project publishes only to a package registry, add a CI step that also makes a GitHub release for each version tag. Rules for this work: - Each file must be true for this project. Do not copy text that does not apply to it. - Do not choose a licence, a contact, or a release version for me. Ask me. - Do not publish a release, change a repository setting, or push to the default branch. Make the changes on a new branch. - Keep each change small, and run the checks of this repository before you finish. - At the end, list each item as DONE, SKIPPED (with the reason), or NEEDS A DECISION (with the question). AwesomeRepos reads these facts again in its next scan. The definitions of the checks: https://awesomerepos.com/health-facts
Maintenance
2 of 4 checks (2 without data)-
Yes: Not archived
GitHub does not mark the repository as archived. Source
-
Yes: A push in the last 90 days
Last push on 2026-10-19, 23 days ago. Source
-
No data: Commits in the last 13 weeks
No data: AwesomeRepos has not read the weekly commits.
-
No data: Commits in 26 or more of the last 52 weeks
No data: AwesomeRepos has not read the weekly commits.
Releases
1 of 3 checks (1 without data)-
No: A release in the last 365 days
Newest release v1.2.4 on 2025-04-13, 577 days ago. 0 releases in the last 365 days. Source
-
Yes: The newest release tag is a semantic version
The newest release tag is v1.2.4. Source
-
No data: A changelog file at the root
No data: AwesomeRepos has not scanned this repository.
Security practice
0 of 1 check (1 without data)-
No data: A security policy
No data: AwesomeRepos has not scanned this repository.
AwesomeRepos has not asked OpenSSF Scorecard about this repository.
Community files
1 of 3 checks (2 without data)-
Yes: A licence
GitHub finds the licence MIT. Source
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No data: A contributing guide
No data: AwesomeRepos has not scanned this repository.
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No data: A code of conduct
No data: AwesomeRepos has not scanned this repository.
Observations
Latest Observation, Nov 12, 2026: 6,371 stars, 225 forks, last push Oct 19, 2026, not archived. One of 2 Observations since Nov 11, 2026.