chore(write-release-notes): add contributor filter and length validation

[tusharmath]

No description provided.

[augmentcode]

🤖 Augment PR Summary

Summary: Updates the write-release-notes skill to better control attribution and keep generated release notes within a strict size limit.

Changes:

• Adds a Contributors filter to include only external contributors and omit the section when there are none
• Adds a length-validation step to enforce a 2000-character maximum for the final release notes
• Introduces a bundled validate-release-notes.sh script that checks content from stdin or a file and prints PASS/FAIL

Technical Notes: The validator exits with 0 on PASS and 1 on FAIL for easy use in scripts/automation.

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[augmentcode]

Review completed. 2 suggestions posted.

Comment augment review to trigger a new review at any time.

[augmentcode]

The echo "<release notes>" | bash ... example may not preserve multi-line release notes verbatim when users copy/paste (and echo can also be shell-dependent), which can make the length validation differ from the actual draft. Consider clarifying an input method that preserves newlines exactly so the validator matches what will be posted.

Severity: low

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[augmentcode]

content=$(cat ...) via command substitution strips trailing newline(s), so char_count can be under-reported and potentially PASS output that would be at/over the limit when pasted verbatim. This affects both the file-input and stdin paths.

Severity: medium

Other Locations

• .forge/skills/write-release-notes/scripts/validate-release-notes.sh:18

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