Refine ExtractIssuePrefix to better distinguish hash IDs from English
words in multi-part issue IDs. Hash suffixes now require digits or be
exactly 3 chars, preventing "test", "gate", "part" from being treated
as hashes. This fixes prefix extraction for IDs like "vc-baseline-test".
Also updates git hooks to use -q flag and adds AGENTS.md documentation.
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
The ExtractIssuePrefix function was falling back to first-hyphen
extraction when the suffix didn't look like a hash (e.g., 4+ char
words without digits). This broke prefixes like 'hacker-news' where
an issue ID 'hacker-news-test' would incorrectly extract 'hacker'.
Fix: Always use last-hyphen extraction for alphanumeric suffixes.
Only fall back to first-hyphen for non-alphanumeric suffixes.
Examples:
- 'hacker-news-test' -> 'hacker-news' (was: 'hacker')
- 'me-py-toolkit-abc' -> 'me-py-toolkit' (was: 'me')
- 'vc-baseline-hello' -> 'vc-baseline' (was: 'vc')
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
isLikelyHash() required at least one digit to distinguish hashes from
English words, but base36 hashes can be all-letters by chance.
This caused ExtractIssuePrefix("xa-adt-bat") to return "xa" instead
of "xa-adt", breaking import for 20 issues in xa-adapt.
Fix: Accept all-letter suffixes for 3-char only, keep digit requirement
for 4+ chars where word collision probability is low enough (~0.2%).
Rationale:
- 3-char: 36³ = 46K hashes, ~1000 common words = ~2% collision
- 4-char: 36⁴ = 1.6M hashes, ~3000 words = ~0.2% collision
- 5+ char: collision rate negligible
