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facebook/Lifeguard

Lifeguard is a static analyzer to detect Lazy Imports incompatibilities and ease the adoption overhead for Lazy Imports in Python

869Python161d old

Summary

The available public data is mixed. More sustained activity or a broader contributor base would strengthen the score.

facebook/Lifeguard recorded 124 commits in the past 30 days, has 16 public contributors, and has averaged 0.5 stars a day since launch.

100

Repository health

100

Maintainer track record

97

Repository quality

57

Catalyst Score

Contributors

Public track record

Meta GitHub avatar
Meta

@facebook · Repository organization

100/100

Established maintainer with a long public history and active community.

36.6K followers172 public repos17y history0 contributions
172 public repositories36556 followers17 years of public history
Brittany Reynoso GitHub avatar
Brittany Reynoso

@brittanyrey · Top contributor

65/100

Active maintainer with a growing open-source track record.

17 followers11 public repos12y history213 contributions
11 public repositories17 followers12 years of public history
Martin DeMello GitHub avatar
Martin DeMello

@martindemello · Top contributor

98/100

Established maintainer with a long public history and active community.

75 followers106 public repos18y history101 contributions
106 public repositories75 followers18 years of public history
alonda GitHub avatar
alonda

@alrobichaud · Top contributor

27/100

This account has a limited public history, so the track-record score is less certain.

2 followers1 public repos5y history44 contributions
1 public repositories2 followers5 years of public history

Score breakdown

How the Catalyst Score was calculated

Star growth since launch+1
Fork growth since launch+0
Freshness+0
30-day commit activity+12
Contributor breadth+9
Maintainer track record+12
Topic activity+4
Repository quality+8
Topic novelty+11
Risk penalty0

Activity

Recent repository activity

124

Commits · 30d

16

Public contributors

0.5

Lifetime stars/day

0

Pull requests · 90d

Findings

What we found

124 commits in the last 30 days

16 public contributors

0 issues and 0 pull requests opened in 90 days

12 documentation and structure checks passed

Related repositories

lazy-imports · 0 created in the past 30 days

Risk review

What needs watching

No material structural red flags detected; monitor maintainer concentration

Public GitHub data cannot verify private work, employment claims, code security, or identity. Use the track-record score as research context, not proof of identity or trustworthiness.

Growth quality

Recent attention and maintainer concentration

Recent timestamps and contribution patterns help distinguish sustained adoption from a single headline number.

Contributor concentration

Top 16 public contributors

Top contributor share
55%
Top three share
93%
Contributors checked
16
Concentration
High

Shares use the contribution totals reported for the contributors checked, not private or unlinked activity.

Recent commit sample

Latest 100 commits

Unique authors
11
Verified commits
1%
Merge commits
0%
Median time between commits
1.2 hours

Repository footprint

Default branch: main

Repository size
2.8 MB
Branches
4
Tags
1
Watchers
4
Issue tracking

Deeper GitHub data

Delivery, collaboration, and project readiness

These metrics use the latest public records GitHub makes available for this repository.

Language composition

Share of detected source bytes

Python72%
Rust28%
Starlark0%

Community readiness

GitHub community health 75%

README
License
Contributing guide
Code of conduct
Issue template
Pull request template

Pull request health

Latest 15 pull requests

Merge rate
7%
Median merge time
6.5 hours
Open
1
Stale over 30 days
1

CI reliability

Latest 50 workflow runs

Success rate
100%
Workflows represented
3
Failed runs
0
Median duration
2.1 min

Last checked

8/25/2026, 8:11:30 PM

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