Quick task IDs were sequential integers (001, 002...) computed by reading
the local .planning/quick/ directory max value. Two users running /gsd:quick
simultaneously would get the same number, causing directory collisions on git.
Replace with a collision-resistant format: YYMMDD-xxx where xxx is the
number of 2-second blocks elapsed since midnight, encoded as 3 lowercase
Base36 characters (000–xbz). Practical collision window is ~2 seconds per
user — effectively zero for any realistic team workflow.
- init.cjs: remove nextNum scan logic, generate quickId from wall clock
- quick.md: rename all next_num refs to quick_id, update directory patterns
- init.test.cjs: rewrite cmdInitQuick tests for new ID format
Co-authored-by: yanbing <yanbing@corp.netease.com>
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
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