As reported on October 2, 2026, COSMIC’s revised GitHub pull request template asks contributors to attest that their submitted changes contain no LLM-generated material. The reported scope includes code, comments, and pull request descriptions. The current template itself was not directly verified, so its exact wording and the date the change took effect remain unclear.
What COSMIC’s reported policy covers
Linuxiac reported that COSMIC’s revised pull request template requires contributors to confirm that a pull request contains no LLM-generated code, comments, or description text. The report also says the template asks contributors to confirm they understand their changes, can respond to review feedback, have tested their work, and certify under the Developer Certificate of Origin. These are reported requirements; the current primary template was not directly retrieved, so treat the report as a description rather than a verified quotation of the form. Linuxiac’s October 2 report
The reported restriction concerns material submitted in a pull request. The sources do not establish a blanket ban on using AI privately for research, debugging, or understanding code; they do not define where the project draws that boundary. Contributors should check the live project template and guidance before submitting.
What changed, and what remains uncertain
In an August 2–4, 2026 GitHub discussion, COSMIC maintainer mmstick said, “We have a policy in place that we use with GitHub pull request templates:” and linked the template. A participant also said there was no current plan to change the policy and described substantial LLM-written pull requests as generally not accepted. That discussion shows an earlier reference to a template policy, but it does not establish the full wording of the later reported rule. August GitHub discussion
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The October 2 coverage describes a more explicit no-generated-content attestation, but the available sources do not establish the precise effective date or confirm the current template’s exact text. It is therefore more accurate to say that COSMIC’s revised template was reported to include the attestation than to claim a specific adoption date.
Why the team reportedly tightened the expectation
A September 30 Reddit post reproduces a team statement saying COSMIC wanted to prioritize its team and regular contributors after receiving many more changes from first-time contributors using LLMs. The reproduced statement describes those changes as often unplanned and having a low acceptance rate. This rationale is available through a community post reproducing the statement, not a directly retrieved project announcement. September 30 Reddit post
The sources do not verify a statistic for COSMIC’s rejection rate or the volume of AI-generated submissions. A percentage mentioned by someone asking about the policy is not a measured COSMIC finding.
Exception reported for cosmic-flatpak manifests
The September 30 post says cosmic-flatpak manifests are excepted because each project maintains its own manifest, while COSMIC reviews sandboxing. This is also a secondhand report, so contributors working on those manifests should confirm the applicable guidance with the relevant project rather than assume the exception’s precise scope from the post alone. September 30 Reddit post
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- Check the live COSMIC pull request template and project guidance. Follow the current declarations shown there; the wording described in news coverage has not been verified against the primary template.
- Submit only work you understand and can explain. The October report says the template also addresses understanding changes and responding to review feedback.
- Test the changes you submit. The same report says contributors are asked to confirm testing. State only what you actually tested.
- Review the project’s authorship and certification requirements. The report says the template references the Developer Certificate of Origin; follow the live instructions for completing that requirement.
- Ask the project if your case is unclear. In particular, do not infer that private AI assistance or a reported manifest exception is covered—or excluded—without checking the applicable current guidance.
This is a project-specific policy, not a universal open-source rule
Open-source projects set different contribution standards. GitLab’s official policy, for example, permits AI-generated contributions subject to disclosure, validation, and other conditions. That contrast does not change COSMIC’s reported rule; it shows why contributors should follow the policy of the project receiving the pull request. GitLab’s AI contribution policy
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