mozilla/bugbug

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Platform for Machine Learning projects on Software Engineering

Stars: 570
Forks: 351
Open beginner issues: 0
Indexed issues: 580
Avg merge: 2d 13h
Merged PRs (30d): 65

Dominant language: Python
License: MPL-2.0
Last GitHub push: Sep 18, 2026
Latest indexed: Sep 19, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: No beginner labels indexed

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580 open issues indexed

/moz:patch_review is not working inside VS Code. Open

mcp

Difficulty 3/5 1-2 days Newbie friendliness 32/100

mozilla/bugbug#5740 · Opened Feb 23, 2026
Make patch_review support reviewing local patches Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

mozilla/bugbug#5739 · 1 comment · Opened Feb 23, 2026
Identify group review members as reviewers when interacting with review helper Open

reviewhelper-api

Difficulty 3/5 1-2 days Newbie friendliness 45/100

mozilla/bugbug#5723 · Opened Feb 22, 2026
Show the review request status in Phabricator Open

reviewhelper-api

mozilla/bugbug#5721 · 1 assignee · Opened Feb 22, 2026
`pyppeteer` emits SyntaxWarnings due to invalid escape sequences Open

code-review

Difficulty 3/5 1-2 days Newbie friendliness 35/100

mozilla/bugbug#5720 · Opened Feb 22, 2026
Use adaptive thinking with Claude Opus 4.6 Open

code-review

Difficulty 3/5 1-2 days Newbie friendliness 45/100

mozilla/bugbug#5719 · Opened Feb 21, 2026
Clicking the thumb down button on an AI review should delete the comment or mark it "done" to avoid having to tick a box when landing Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

mozilla/bugbug#5717 · Opened Feb 20, 2026
The patch summary includes the token budget details Open

code-review reviewhelper-api

Difficulty 3/5 1-2 days Newbie friendliness 35/100

mozilla/bugbug#5705 · Opened Feb 20, 2026
Use forward references for Python classes Open

Difficulty 1/5 Under an hour Newbie friendliness 72/100

mozilla/bugbug#5694 · Opened Feb 18, 2026
The mcp fails to create a markdown representation of a Phabricator revision when one of the patches on the stack is not public Open

mcp

Difficulty 3/5 1-2 days Newbie friendliness 42/100

mozilla/bugbug#5685 · Opened Feb 16, 2026
Model training scripts dump generated artifacts directly into the repo root Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

mozilla/bugbug#5672 · Opened Feb 14, 2026
Clarify the error message when using the patch_review workflow Open

mcp

Difficulty 2/5 1-3 hours Newbie friendliness 48/100

mozilla/bugbug#5669 · Opened Feb 13, 2026
Build a model to rate severity of security bugs Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

mozilla/bugbug#5622 · Opened Jan 19, 2026
Support changing the logging level Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

mozilla/bugbug#5613 · Opened Jan 12, 2026
Many `timed out` errors when querying Qdrant database Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

mozilla/bugbug#5612 · Opened Jan 12, 2026
Potential circular import issue in SuggestionFilteringTool Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

mozilla/bugbug#5610 · Opened Jan 12, 2026
BugBug landings risk report: JSONDecodeError: Expecting value: line 1 column 1 (char 0) Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

mozilla/bugbug#5575 · 3 comments · Opened Dec 22, 2025
Experiment with using to-do list middleware to guide the review comment generation process Open

code-review

Difficulty 5/5 Over a week Newbie friendliness 25/100

mozilla/bugbug#5565 · Opened Dec 19, 2025
Use langchain-qdrant for vector stores Open

code-review

Difficulty 4/5 3-5 days Newbie friendliness 35/100

mozilla/bugbug#5559 · Opened Dec 18, 2025
New breaking changes in qdrant-client Open

code-review

mozilla/bugbug#5557 · 1 assignee · Opened Dec 18, 2025
Include queue position in 202 response for test scheduling Open

http_service

Difficulty 3/5 1-2 days Newbie friendliness 45/100

mozilla/bugbug#5494 · Opened Nov 20, 2025
Revert no_backout workaround when Mercurial identification of backouts is fixed Open

Difficulty 1/5 Under an hour Newbie friendliness 35/100

mozilla/bugbug#5490 · Opened Nov 20, 2025
Bugbug thinks CSS transform: translate is related to Translations Open

Difficulty 4/5 3-5 days Newbie friendliness 42/100

mozilla/bugbug#5421 · 1 comment · Opened Nov 4, 2025
Redis error in the Docker Compose setup Open

http_service

Difficulty 4/5 3-5 days Newbie friendliness 30/100

mozilla/bugbug#5420 · Opened Nov 3, 2025
docker http build should use the tag of the pipeline run, not the latest tag Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

mozilla/bugbug#5419 · 1 comment · Opened Nov 3, 2025
[retrieve_ci_failures] Use cherry-pick in case 3-way apply fails Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

mozilla/bugbug#5398 · Opened Oct 31, 2025
Use robustcheckout to pull Open

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

mozilla/bugbug#5393 · Opened Oct 30, 2025
The `version` attribute in docker-compose.yml is obsolete Open

mozilla/bugbug#5368 · 1 reaction · 1 assignee · Opened Oct 21, 2025
Replace `datetime.utcnow()` with `datetime.now(timezone.utc)` Open

Difficulty 2/5 1-3 hours Newbie friendliness 55/100

mozilla/bugbug#5367 · Opened Oct 21, 2025
Fix confusing code comment in `find_mixed_lines_range()` Open

Difficulty 1/5 Under an hour Newbie friendliness 55/100

mozilla/bugbug#5364 · 1 comment · Opened Oct 20, 2025
Utilize subagents to analyze functions and answer questions essential for understanding their use Open

code-review

Difficulty 5/5 Over a week Newbie friendliness 25/100

mozilla/bugbug#5342 · Opened Oct 15, 2025
Display the author names instead of PHIDs in the markdown versions of Phabricator revisions Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

mozilla/bugbug#5308 · Opened Oct 4, 2025
Include ReviewBot linting results in the markdown version of Phabricator revisions from the MCP Open

mcp

Difficulty 3/5 1-2 days Newbie friendliness 45/100

mozilla/bugbug#5307 · Opened Oct 4, 2025
Show number of previous diffs when retrieving a revision from the MCP server Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

mozilla/bugbug#5306 · Opened Oct 3, 2025
Investigate CoDoC approach for some models Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

mozilla/bugbug#5305 · Opened Oct 3, 2025
Consider using a consistent type for diff_id throughout the PhabricatorPatch class Open

Difficulty 3/5 1-2 days Newbie friendliness 38/100

mozilla/bugbug#5304 · Opened Oct 3, 2025
Reduce unused dependencies between ML/models and LLM/agents modules Open

code-review

Difficulty 4/5 3-5 days Newbie friendliness 25/100

mozilla/bugbug#5301 · Opened Oct 1, 2025
Saved models are showing a warning that will raise an exception starting from Scikit-learn version 1.8 Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

mozilla/bugbug#5279 · Opened Sep 22, 2025
Support generation of comments through multiple LLMs Open

code-review

Difficulty 5/5 Over a week Newbie friendliness 15/100

mozilla/bugbug#5269 · Opened Sep 17, 2025
get_first_pushdate is failing with `IndexError: tuple index out of range` Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

mozilla/bugbug#5239 · 4 comments · Opened Sep 2, 2025
Failed to build `llama-cpp-python==0.3.16` Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

mozilla/bugbug#5225 · Opened Aug 31, 2025
[inline_comments_data_collection] Failed to fetch diff: 429 Client Error: Unknown Error for url Open

Difficulty 3/5 1-2 days Newbie friendliness 58/100

mozilla/bugbug#5222 · Opened Aug 31, 2025
Regenerate commit and test data referring to backout and backed-out commits that were skipped because of the git migration Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

mozilla/bugbug#5182 · Opened Aug 5, 2025
[meta] Test selection model improvements Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

mozilla/bugbug#5180 · Opened Aug 4, 2025
Add bug_map as a cached property for LandingsRiskReportGenerator Open

good-first-bug

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

mozilla/bugbug#5053 · 1 comment · Opened May 28, 2025
[code_review] Experiment with filtering comments based on the severity class Open

code-review

mozilla/bugbug#5047 · 1 assignee · Opened May 27, 2025
[code_review] Check if the number of comments asking to verify something impacted by rephrasing the prompt Open

code-review

Difficulty 4/5 3-5 days Newbie friendliness 35/100

mozilla/bugbug#5046 · Opened May 27, 2025
Add "bug filer type" to component model features Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

mozilla/bugbug#5034 · Opened May 19, 2025
[code_review] Experiment using previous explanations in the comment examples Open

code-review

Difficulty 5/5 Over a week Newbie friendliness 15/100

mozilla/bugbug#5017 · Opened May 14, 2025
Verify that Android-specific task data is ingested by the `testselect` model Open

Difficulty 4/5 3-5 days Newbie friendliness 28/100

mozilla/bugbug#5006 · Opened May 8, 2025

mozilla/bugbug

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