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facebook/pyrefly

Star momentum, maintenance concentration, contributor health, and codebase change — one report built from public repository data.

Open on GitHub
Stars
7,201
History since
2025
Latest star
Nov 2026

Star history

Last 30 days
+136
Last 90 days
+382
Stars / day
12
Cumulative stars
stars from March 6, 2025 to November 13, 2026, peaking at 7,201.7.2k STARS1 YR 8 MO1K7.2kNOV 2026MAR 2025

7,201 stars on November 13, 2026.

stars by date
Datestars
March 6, 20251
March 11, 202514
March 13, 202530
March 16, 202556
March 19, 202564
March 20, 202565
March 28, 202571
April 2, 202574
April 5, 202577
April 10, 202583
April 12, 202585
April 16, 202592
April 28, 2025100
May 1, 2025347
May 2, 2025408
May 5, 2025525
May 8, 2025585
May 10, 2025601
May 14, 2025618
May 16, 2025782
May 18, 2025982
May 21, 20251,492
May 24, 20251,846
May 25, 20251,970
May 28, 20252,273
May 31, 20252,421
June 2, 20252,501
June 5, 20252,576
June 8, 20252,652
June 9, 20252,674
June 12, 20252,727
June 15, 20252,772
June 16, 20252,785
June 19, 20252,835
June 22, 20252,889
June 24, 20252,921
June 27, 20252,969
June 30, 20252,995
July 1, 20253,002
July 4, 20253,028
July 7, 20253,045
July 8, 20253,054
July 11, 20253,067
July 14, 20253,094
July 16, 20253,116
July 19, 20253,145
July 22, 20253,167
July 23, 20253,173
July 26, 20253,190
July 29, 20253,214
July 30, 20253,218
August 2, 20253,234
August 5, 20253,254
August 7, 20253,268
August 10, 20253,281
August 13, 20253,298
August 14, 20253,304
August 17, 20253,310
August 20, 20253,338
August 21, 20253,351
August 24, 20253,368
August 27, 20253,383
August 30, 20253,397
September 1, 20253,409
September 4, 20253,441
September 7, 20253,463
September 8, 20253,474
September 11, 20253,485
September 14, 20253,494
September 15, 20253,499
September 18, 20253,515
September 21, 20253,532
September 23, 20253,543
September 26, 20253,563
September 29, 20253,607
September 30, 20253,618
October 3, 20253,637
October 6, 20253,649
October 7, 20253,657
October 10, 20253,686
October 13, 20253,711
October 15, 20253,834
October 18, 20253,897
October 21, 20253,927
October 22, 20253,933
October 25, 20253,952
October 28, 20253,967
October 29, 20253,983
November 1, 20254,006
November 4, 20254,062
November 6, 20254,102
November 9, 20254,124
November 12, 20254,154
November 13, 20254,159
November 16, 20254,184
November 19, 20254,256
November 20, 20254,402
November 23, 20254,555
November 26, 20254,608
November 28, 20254,656
December 1, 20254,695
December 4, 20254,744
December 5, 20254,759
December 8, 20254,806
December 11, 20254,837
December 13, 20254,855
December 15, 20254,871
December 18, 20254,898
December 20, 20254,911
December 23, 20254,934
December 26, 20254,946
December 27, 20254,951
December 30, 20254,975
January 2, 20264,987
January 4, 20264,994
January 6, 20265,005
January 9, 20265,029
January 11, 20265,034
January 14, 20265,053
January 17, 20265,071
January 18, 20265,076
January 21, 20265,092
January 24, 20265,104
January 27, 20265,110
January 30, 20265,121
February 1, 20265,127
February 3, 20265,135
February 6, 20265,148
February 9, 20265,157
February 10, 20265,164
February 13, 20265,191
February 16, 20265,225
February 18, 20265,245
February 21, 20265,259
February 23, 20265,267
February 25, 20265,277
February 28, 20265,284
March 3, 20265,300
March 4, 20265,304
March 7, 20265,313
March 10, 20265,327
March 12, 20265,333
March 15, 20265,342
March 18, 20265,357
March 19, 20265,365
March 22, 20265,381
March 25, 20265,394
March 26, 20265,395
March 29, 20265,406
April 1, 20265,419
April 3, 20265,425
April 6, 20265,440
April 9, 20265,456
April 10, 20265,462
April 13, 20265,481
April 16, 20265,495
April 17, 20265,500
April 20, 20265,508
April 23, 20265,519
April 26, 20265,522
April 29, 20265,539
May 2, 20265,553
May 3, 20265,556
May 6, 20265,571
May 9, 20265,588
May 10, 20265,591
May 13, 20265,681
May 16, 20265,939
May 18, 20266,110
May 21, 20266,285
May 24, 20266,383
May 25, 20266,395
May 28, 20266,430
May 31, 20266,463
June 1, 20266,475
June 4, 20266,494
June 7, 20266,501
June 9, 20266,509
June 12, 20266,524
June 15, 20266,543
June 18, 20266,569
June 19, 20266,573
June 22, 20266,591
June 25, 20266,615
June 26, 20266,619
June 30, 20266,633
July 3, 20266,655
July 5, 20266,661
July 8, 20266,676
July 11, 20266,690
July 12, 20266,695
July 15, 20266,700
July 18, 20266,713
July 19, 20266,715
July 22, 20266,727
July 25, 20266,746
July 27, 20266,754
July 30, 20266,763
August 2, 20266,776
August 3, 20266,781
August 6, 20266,789
August 10, 20266,805
August 11, 20266,810
August 14, 20266,819
August 17, 20266,828
August 19, 20266,832
August 22, 20266,843
August 26, 20266,847
August 27, 20266,850
August 30, 20266,861
September 2, 20266,875
September 3, 20266,878
September 6, 20266,887
September 9, 20266,896
September 11, 20266,905
September 14, 20266,919
September 17, 20266,932
September 18, 20266,942
September 21, 20266,959
September 24, 20266,975
September 26, 20266,982
September 28, 20266,989
October 1, 20267,004
October 3, 20267,012
October 6, 20267,020
October 9, 20267,042
October 10, 20267,048
October 13, 20267,065
October 16, 20267,077
October 18, 20267,086
October 20, 20267,097
October 23, 20267,109
October 25, 20267,125
October 28, 20267,147
November 1, 20267,161
November 2, 20267,163
November 5, 20267,179
November 8, 20267,184
November 10, 20267,190
November 13, 20267,201

The last 90 days run behind its lifetime average, which is ordinary for a mature project.

Star milestones: 100 around Apr 20251k around May 2025

The commit history reads facebook/pyrefly a second time

methodology

Fix-labelled changes, file change frequency, ownership concentration and maintenance cadence, each computed from this repository's analyzed commit window. None of them is derived from stars, which is why they are allowed to disagree with the curve above.

Fix-labelled changes
Fix-labelled changes for facebook/pyrefly
File change frequency
File change frequency for facebook/pyrefly
Bus factor
Bus factor for facebook/pyrefly
Maintenance pulse
Maintenance pulse for facebook/pyrefly
Contributors
Contributors for facebook/pyrefly
Language activity
Language activity for facebook/pyrefly
Commit activity
Commit activity for facebook/pyrefly
Recent TODO/FIXME movement
Recent TODO/FIXME movement for facebook/pyrefly

Attention is not adoption.

Stars against usage

No published package was detected for this repository, so there is nothing to lay over star growth.

Earned badges

badge studio

Maintenance, ownership and star-momentum signals, computed from the same commit and star history and embeddable as static images.

Reading badge evidence for facebook/pyrefly.

Notes on facebook/pyrefly

How many stars does facebook/pyrefly have?
GitHub currently reports 7,201 stars for facebook/pyrefly, with about 382 of them added in the last 90 days.
How fast is pyrefly growing?
facebook/pyrefly gained about 382 stars over the last 90 days of its history (about 136 in the last 30) — figures are approximate for older repos, whose star history is downsampled. That's below its lifetime average growth pace, which is common for mature projects.
Is pyrefly still active?
facebook/pyrefly is still attracting attention — about 136 new GitHub stars in the most recent 30 days of its history. For commit-level signals, see the commit activity heatmap, commit trend, and contributors charts on this page.
When was pyrefly created?
facebook/pyrefly was created on February 19, 2025 and earned its first GitHub star in Mar 2025.

Read pyrefly against a neighbour

comparison builder
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Put this drawing in your README

markdown for agents

The block below publishes the chart with its source and coverage date stated beside it — the same three facts the title block above shows, as text a reader can check. The prompt underneath hands a coding agent the badges and repo-health charts as well.

README.md · facebook/pyrefly star history
<a href="https://gitdebt.com/facebook/pyrefly?ref=readme">
  <picture>
    <source media="(prefers-color-scheme: dark)" srcset="https://api.gitdebt.com/api/repos/facebook/pyrefly/chart.svg?theme=dark" />
    <img alt="facebook/pyrefly star history" src="https://api.gitdebt.com/api/repos/facebook/pyrefly/chart.svg?theme=light" />
  </picture>
</a>

<sub>Star history source: GitHub star history · Covers through November 14, 2026 · Still updating — <a href="https://gitdebt.com/facebook/pyrefly?ref=readme">gitdebt</a></sub>

Light and dark variants, alt text, and one provenance line. Provenance is text in your README, never baked into the image URL, so the chart stays cacheable.

Paste it into Claude Code, Cursor, Codex, or any coding agent with your checkout open. It carries the measured numbers, the exact snippets, and the rules — including replacing an existing star-history widget in place rather than stacking a second chart under it.