Add skillsaw

[not-stbenjam]

Replaces #1869

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Adds skillsaw, a configurable linter for the files that steer AI coding agents.

Eligibility was verified against the contribution requirements: the project has 52 GitHub stars, 10 non-bot contributors, a history dating to October 2025, and current development activity. The YAML description is 269 characters.

This PR was created with AI assistance.

🛠️ Tool Requirements

• I have not changed the README.md directly. (New tools go in data/tools/)
• The tool has more than 20 stars on GitHub (or similar impact).
• The project has existed for at least 3 months.
• The project is actively maintained.
• The description in the YAML file is under 500 characters.

[github-actions]

Contributing criteria check

[FAIL] skillsaw

Source: https://github.com/stbenjam/skillsaw

Criterion	Result
Stars (min 20)	pass 66 stars
Human contributors (min 2)	pass 11 human contributors
Age (min 6 months)	fail created 133 days ago, needs 50 more days to meet the 6-month minimum

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Thank you for sharing your tool! One or more tools do not yet meet the contribution criteria, as shown above, so we are closing this pull request.

You are welcome to submit a new pull request once all criteria are met. Thank you for your contribution!

[mre]

thanks for adding the tag to the other tool as well.

[mre]

Thanks for the contribution and for adding the new tag. 😃